SUBTITLE .SRT

sistem informasi

Keuntungan SI bagi Perusahaan

meningkatkan profitabilitas bisnis
mengurangi biaya operasional bisnis
meningkatkan pangsa pasar bagi penjualan produknya
meningkatkan hubungan dengan pelanggan
meningkatkan efisiensi perusahaan
meningkatkan kecepatan pengambilan keputusan
mengurangi kesalahan yang mungkin terjadi
meningkatkan keamanan
memperoleh kapasitas produksi yang lebih besar

SISTEM INFORMASI

SISTEM
– Hall dan Fagen (1956): mendefinisikan sistem yaitu suatu kumpulan dari elemen-elemen yang saling
berinteraksi yang membentuk suatu keseluruhan yang teintegrasi. Kota, sel, dan tubuh adalah contoh
dari sistem. Begitu juga automobil, komputer dan mesin cuci juga merupakan suatu sistem. Secara
formal sistem dapat didefinisikan sebagai suatu kumpulan elemen-elemen yang saling berhubungan,
dengan batasnya (boundary) yang dapat diidentifikasi, yang secara bersama-sama berfungsi untuk mencapai tujuan yang umum.

komponen penting dari sistem:

• Elemen yang saling berhubungan (interrelasi)
• adanya batasan (boundary)
• adanya tujuan yang umum

Inter-relasi
Konsep interrelasi mengusulkan bahwa elemen-elemen dari sistem adalah tidak saling bebas (interdependen). Dengan kata lain, jika satu elemen dari suatu sistem gagal atau tidak berfungsi, dia akan mempengaruhi beberapa atau semua elemen lain dari sistem. Elemen-elemen ini sering disebut subsistem, yang bekerja bersama-sama untuk mencapai tujuan atau obyek dari sistem.

Boundary
Konsep boundary, adanya batas, mengusulkan bahwa sistem dapat didefinisikan di dalam konteks semua sistem yang lainnya dan bahwa batasnya dapat ditetapkan secara virtual yang mempunyai batasan yang jelas. Lebih lanjut, keberadaan dari boundary mengakibatkan bahwa elemen-elemen di dalam sistem harus dikandung didalamnya, dan adanya elemen-elemen yang tidak dikandung di dalam batasan sistem yang terdefinsikan dari suatu sistem adalah bukan merupakan bagian dari sistem.

Tujuan
Konsep yang ketiga adalah adanya tujuan yang umum. Tujuan atau maksud dari suatu sistem adalah sangat mudah, yaitu alasannya adalah untuk digunakan. Jika suatu sistem tidak mempunyai alasan
karena tidak mempunyai fungsi atau dia tidak dapat menyediakan fungsionalitas yang diperlukan, maka maksud dari dari suatu sistem adalah tidak penting dan sistem diperlukan lagi.

~~Jenis Sistem~~
Sistem tertutup sering dihubungkan dengan sistem stabil atau sistem mekanistik. Beberapa sistem jarang berinteraksi dengan dengan lingkungan dengan maksud untuk menerima input atau untuk menghasilkan keluaran. Sebagai konsekuensinya, sistem tertutup cenderung untuk beroperasi secara rutin dan berstruktur tinggi, dan perubahan lingkungan tidak cenderung mempunyai efek material padanya. Contoh dari sistem tertutup ini adalah terrarium. Salah satu karakteristik yang penting dari sistem ini adalah bahwa ia mampu bertahan dengan sendirinya (self-sustaining).

Sistem terbuka sering disebut juga sistem organik atau sistem adaptif. Dalam kategori ini, entitas yang ada baik secara internal maupun eksternal adalah penting. Sistem terbuka cenderung kurang terstruktur dan kurang operasional seperti pada sistem tertutup. Lebih lanjut, interaksi dari variasi komponen satu dengan lainnya dan dengan lingkungannya, meskipun probabalistik, secara konstan berubah dan kurang bisa diprediski daripada sistem tertutup. Karakteristik dari sitem terbuka bahwa ia mampu beradaptasi terhadap perubahan baik internal maupun eksternal. Meskipun tidak sempurna, dua contoh sistem terbuka yang menjadi minat bagi seorang sistem analis adalah oraganisasi bisnis dan sistem informasi

~~Informasi~~
Apakah infromasi itu? Informasi adalah suatu kumpulan dari data-data yang sudah diproses/diolah yang dapat dimengerti untuk dipergunakan di dalam pengambilan keputusan. Sedangkan data sendiri adalah sesuatu yang belum terorganisasi dan diproses sehingga belum bisa dimengerti. Data bisa berupa fakta dari suatu kejadian

sistem informasi

Keuntungan SI bagi Perusahaan

meningkatkan profitabilitas bisnis
mengurangi biaya operasional bisnis
meningkatkan pangsa pasar bagi penjualan produknya
meningkatkan hubungan dengan pelanggan
meningkatkan efisiensi perusahaan
meningkatkan kecepatan pengambilan keputusan
mengurangi kesalahan yang mungkin terjadi
meningkatkan keamanan
memperoleh kapasitas produksi yang lebih besar

• Elemen yang saling berhubungan (interrelasi)
• adanya batasan (boundary)
• adanya tujuan yang umum

sistem informasi indonesia

Keuntungan SI bagi Perusahaan

meningkatkan profitabilitas bisnis
mengurangi biaya operasional bisnis
meningkatkan pangsa pasar bagi penjualan produknya
meningkatkan hubungan dengan pelanggan
meningkatkan efisiensi perusahaan
meningkatkan kecepatan pengambilan keputusan
mengurangi kesalahan yang mungkin terjadi
meningkatkan keamanan
memperoleh kapasitas produksi yang lebih besar

• Elemen yang saling berhubungan (interrelasi)
• adanya batasan (boundary)
• adanya tujuan yang umum

Wide Area Network (WAN)

WANs cover more than one geographical area. This is ideal for a company that has offices in different cities around the country or even the world. Each office can connect to the other sites in the WAN via a router. Connectivity from router to router is a circuit leased from a telephone or communications company, such as AT&T to name one. The larger the circuit a company needs to transmit data, the more it costs to lease. The company also needs to pay close attention to the performance of its WAN connection because that cost can directly impact its ability to do business. It is impor
tant to keep an eye on the amount of traffic that is going over each circuit to ensure that you have sufficient throughput. Throughput refers to the amount of data transferred in a specified timeframe.

Wide Area Network (WAN)

Wide Area Network (WAN) indonesia

Wide Area Network (WAN)

metropolitan area network

A MAN is larger than a LAN but smaller than or equal in size to a WAN. Think of it as the size of a city or college campus network, which can range anywhere from 5 to 50km in diameter. MANs are typically owned and managed by a single entity. This could be an ISP or telecommunications company that sells its services to end-users in that metropolitan area. For all intents and purposes, a MAN has the same characteristics as a WAN with distance constraints.

Metropolitan Area Network is a network that spans a city. The network consist of various buildings interconnected via either wirelles or fiber optic backbones.

important features which discriminate MANs from LANs or WANs:

The network size falls intermediate between LANs and WANs. A MAN typically covers an area of between 5 and 50 km range. Many MANs cover an area the size of a city, although in some cases MANs may be as small as a group of buildings.
A MAN is not generally owned by a single organisation. The MAN, its communications links and equipment are generally owned by either a consortium of users or by a network service provider who sells the service to the users.
A MAN often acts as a high speed network to allow sharing of regional resources. It is also frequently used to provide a shared connection to other networks using a link to a WAN.

MAN adopted technologies from both LAN and WAN to serve its purpose. Some legacy technologies used for MAN are ATM, FDDI, DQDB and SMDS. These older technologies are in the process of being displaced by Gigabit Ethernet and 10 Gigabit Ethernet. At the physical level, MAN links between LANs have been built on fibre optical cables or using wireless technologies such as microwave or radio.

metropolitan area network indonesia

Metropolitan Area Network is a network that spans a city. The network consist of various buildings interconnected via either wirelles or fiber optic backbones.

important features which discriminate MANs from LANs or WANs:

The network size falls intermediate between LANs and WANs. A MAN typically covers an area of between 5 and 50 km range. Many MANs cover an area the size of a city, although in some cases MANs may be as small as a group of buildings.
A MAN is not generally owned by a single organisation. The MAN, its communications links and equipment are generally owned by either a consortium of users or by a network service provider who sells the service to the users.
A MAN often acts as a high speed network to allow sharing of regional resources. It is also frequently used to provide a shared connection to other networks using a link to a WAN.

metropolitan area network indonesia

Metropolitan Area Network is a network that spans a city. The network consist of various buildings interconnected via either wirelles or fiber optic backbones.

important features which discriminate MANs from LANs or WANs:

The network size falls intermediate between LANs and WANs. A MAN typically covers an area of between 5 and 50 km range. Many MANs cover an area the size of a city, although in some cases MANs may be as small as a group of buildings.
A MAN is not generally owned by a single organisation. The MAN, its communications links and equipment are generally owned by either a consortium of users or by a network service provider who sells the service to the users.
A MAN often acts as a high speed network to allow sharing of regional resources. It is also frequently used to provide a shared connection to other networks using a link to a WAN.

metropolitan area network indonesia

Metropolitan Area Network is a network that spans a city. The network consist of various buildings interconnected via either wirelles or fiber optic backbones.

important features which discriminate MANs from LANs or WANs:

The network size falls intermediate between LANs and WANs. A MAN typically covers an area of between 5 and 50 km range. Many MANs cover an area the size of a city, although in some cases MANs may be as small as a group of buildings.
A MAN is not generally owned by a single organisation. The MAN, its communications links and equipment are generally owned by either a consortium of users or by a network service provider who sells the service to the users.
A MAN often acts as a high speed network to allow sharing of regional resources. It is also frequently used to provide a shared connection to other networks using a link to a WAN.

metropolitan area network

Metropolitan Area Network is a network that spans a city. The network consist of various buildings interconnected via either wirelles or fiber optic backbones.

important features which discriminate MANs from LANs or WANs:

The network size falls intermediate between LANs and WANs. A MAN typically covers an area of between 5 and 50 km range. Many MANs cover an area the size of a city, although in some cases MANs may be as small as a group of buildings.
A MAN is not generally owned by a single organisation. The MAN, its communications links and equipment are generally owned by either a consortium of users or by a network service provider who sells the service to the users.
A MAN often acts as a high speed network to allow sharing of regional resources. It is also frequently used to provide a shared connection to other networks using a link to a WAN.

metropolitan area network

Metropolitan Area Network is a network that spans a city. The network consist of various buildings interconnected via either wirelles or fiber optic backbones.

important features which discriminate MANs from LANs or WANs:

The network size falls intermediate between LANs and WANs. A MAN typically covers an area of between 5 and 50 km range. Many MANs cover an area the size of a city, although in some cases MANs may be as small as a group of buildings.
A MAN is not generally owned by a single organisation. The MAN, its communications links and equipment are generally owned by either a consortium of users or by a network service provider who sells the service to the users.
A MAN often acts as a high speed network to allow sharing of regional resources. It is also frequently used to provide a shared connection to other networks using a link to a WAN.

Local Area Network

LAN is the smallest network in geographical size.

Like the name suggests, LANs are limited to a local or small geographical area. An example of a LAN would be a network of individual computers or workstations that are connected in a single department. These users have shared access to resources such as data and network devices. Users on a LAN segment can share a network printer and communicate with one another via email. Also, they are governed by one authoritative administrator.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

LAN Interfaces
Local area network (LAN) interfaces are used to provide a point of interconnection between Cisco switches and other network devices. Cisco provides a wide selection of switches that can be implemented on a LAN and offer end-user connectivity. In Chapter 3, “Data Link Networking Concepts,” Layer 2 switches were introduced. The Cisco 2950 series switch family includes various models with different interface options, such as the Cisco 2950-12 and the Cisco 2950-24. The 2950-12 has 12 built-in ethernet ports, whereas the 2950-24 has 24 built in ethernet ports. Certain models also have Gigabit Ethernet slots.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

Local Area Network

LAN is the smallest network in geographical size.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

Local Area Network

LAN is the smallest network in geographical size.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

Local Area Network indonesia

LAN is the smallest network in geographical size.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

Local Area Network indonesia

LAN is the smallest network in geographical size.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

Local Area Network indonesia

LAN is the smallest network in geographical size.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

Local Area Network

LAN is the smallest network in geographical size.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

Local Area Network

LAN is the smallest network in geographical size.

Local area networking uses switches, bridges and/or repeaters, and hubs to interconnect LANs and increase overall size. Routers are used to connect a LAN to a WAN or MAN.

glossary review of LAN :

LAN (local-area network) An internetwork that is limited to a local or small geographic area. An example of a LAN would be the individual computers or workstations that are connected on one floor of a building. by, EXAM PREP Your Complete Certification Solution Exam 640-802 CCNA Second Edition books.
The term Local Area Network (LAN) refers to a local network, or a group of interconnected local networks that are under the same administrative control. In the early days of networking, LANs were defined as small networks that existed in a single phsycal location. While LANs can be a single local network installed in a home or small office, the definition of LAN has envolved to include interconnected local networks consisting of many hundreds of hosts, installed in multiple buildings and locations. by, cisco networking academy : CCNA Exploration 4.0 Networks Fundamental

about internetwork

what do you think about the Internetwork?

may be, . . Internetwork is the connection of more than one network. These networks are linked together by an internetworking device to provide communication between the networks. Internetworks may also be referred to as an internet.

i != I in the beggining of the word internet. "I" Internet is a globaLinternetwork in the word and internet is a part of Internet. Internet example of how thousands of smaller networks are joined together to form one larger GlobalInternetwork. "i" from internet would be the connection of individual LAN to form a WAN.

Types of Internetworks :

about internetwork

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ccna todd lammle, ccna 640-801 [download]
CCNA Study Guide Exam 640-802 6th Edition [download]
eBOOk CISCO semester I [download]
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McGraw.Hill.Cisco.Certified.Network.Associate.Study.Guide.Exam.640-802.Apr.2008.eBook [download]
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if i have a new link. . i will update this blog. . . just wait in the blog of networking by mas jet

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where is download CCNA ebooks??

what the ccna ebook do you want?

i'm already have the link to download the ccna ebook in here :

ccna todd lammle, ccna 640-801 [download]
CCNA Study Guide Exam 640-802 6th Edition [download]
eBOOk CISCO semester I [download]
no title [download]
McGraw.Hill.Cisco.Certified.Network.Associate.Study.Guide.Exam.640-802.Apr.2008.eBook [download]
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ccna todd lammle, ccna 640-801 [download]
CCNA Study Guide Exam 640-802 6th Edition [download]
eBOOk CISCO semester I [download]
no title [download]
McGraw.Hill.Cisco.Certified.Network.Associate.Study.Guide.Exam.640-802.Apr.2008.eBook [download]
no title 2 [download]

if i have a new link. . i will update this blog. . . just wait in the blog of networking by mas jet

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where is download CCNA ebooks??

what the ccna ebook do you want?

i'm already have the link to download the ccna ebook in here :

ccna todd lammle, ccna 640-801 [download]
CCNA Study Guide Exam 640-802 6th Edition [download]
eBOOk CISCO semester I [download]
no title [download]
McGraw.Hill.Cisco.Certified.Network.Associate.Study.Guide.Exam.640-802.Apr.2008.eBook [download]
no title 2 [download]

if i have a new link. . i will update this blog. . . just wait in the blog of networking by mas jet

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where is download CCNA ebooks??

what the ccna ebook do you want?

i'm already have the link to download the ccna ebook in here :

ccna todd lammle, ccna 640-801 [download]
CCNA Study Guide Exam 640-802 6th Edition [download]
eBOOk CISCO semester I [download]
no title [download]
McGraw.Hill.Cisco.Certified.Network.Associate.Study.Guide.Exam.640-802.Apr.2008.eBook [download]
no title 2 [download]

if i have a new link. . i will update this blog. . . just wait in the blog of networking by mas jet

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where is download CCNA ebooks??

what the ccna ebook do you want?

i'm already have the link to download the ccna ebook in here :

ccna todd lammle, ccna 640-801 [download]
CCNA Study Guide Exam 640-802 6th Edition [download]
eBOOk CISCO semester I [download]
no title [download]
McGraw.Hill.Cisco.Certified.Network.Associate.Study.Guide.Exam.640-802.Apr.2008.eBook [download]
no title 2 [download]

if i have a new link. . i will update this blog. . . just wait in the blog of networking by mas jet

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where is download CCNA ebooks??

what the ccna ebook do you want?

i'm already have the link to download the ccna ebook in here :

ccna todd lammle, ccna 640-801 [download]
CCNA Study Guide Exam 640-802 6th Edition [download]
eBOOk CISCO semester I [download]
no title [download]
McGraw.Hill.Cisco.Certified.Network.Associate.Study.Guide.Exam.640-802.Apr.2008.eBook [download]
no title 2 [download]

if i have a new link. . i will update this blog. . . just wait in the blog of networking by mas jet

glossary review of networking academy

10BASE-T An IEEE 802.3 Ethernet standard that has a maximum segment length of 100m and has a 10Mbps data transmission speed. 10BASE-T can use Category 3, 4, or 5 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cables for connectivity.
802.11a An IEEE wireless networking standard released in 1999 that uses the 5GHz frequency range. 802.11a clients can theoretically transmit at a maximum speed of 54Mbps.
802.11b An IEEE wireless networking standard released in 1999 that uses the 2.4GHz frequency range. 802.11b clientscan the oretically transmit at a maximum speed of 11Mbps.
802.11g An IEEE wireless networking standard released in 2003 that uses the 2.4GHz frequency range. 802.11g clients can theoretically transmit at a maximum speed of 54Mbps. This standard is backward compatible with 802.11b clients.
802.11n A predraft standard for wireless networking that uses Multiple Input, Multiple Output (MIMO) signals to achieve higher throughput. Current predraft equipment uses the 2.4GHz frequency range.
802.1q An IEEE frame-tagging method over trunk ports that insert the 4-byte VLAN identifier inside the original Ethernet frame.
802.1x An authentication protocol geared toward LAN environments. 802.1x requires that users authenticate to the network before they are granted wired or wireless access.

AAA (Authentication, Authorization, and Accounting) A group of three services that are used in conjunction with an authentication server and a software service such as Terminal Access Controller Access Control
System (TACACS) or Remote Authentication Dial-in User Service (RADIUS) to provide a secure network connection with a record of user activities.
ABR (Area Border Router) : a router that sits between multiple areas in a hierarchical OSPF network. These routers are responsife for summarizing subnets to the rest of the OSPF autonomous system. Because they must maintain topology information from several areas, these routers are typically robust in resources.
access attack : a class of attack in which a hacker attempts to access another user account or network device through improper means.
access class : the command used to apply an access list to vty ports.
access port : a switch port that has a single VLAN assigned to it. These are typically used for connectivity between end devices.
ACTIVE, INACTIVE, and DELETED PVC status The three states of a Frame Relay PVC. Active means that the connection is good on both ends. Inactive means that the remote router is misconfigured. Deleted means that the local router is misconfigured.
adjacency A term that describes the state after two OSPF neighbors have synchronized their topology databases.
administrative distance : an arbitrary value between 1 and 255 that is assigned to determine the trustworthiness of the routing sources.
advertised distance : the composite metric to a destination that is being advertised from our EIGRP neighbors.
AES (Advanced Encryption Standard) : the newest encryption algorithm. It is managed by the National Institute of Standards and Technology (NIST), a division of the U.S. government. It was designed to increase encryption strength beyond the DES and 3DES standards and yet be more efficient on the device’s processor. As it stands today, AES offers 128-, 192-, and 256-bit encryption.
AH (Authentication Header) One of the components that powers the IPsec security suite of protocols. AH defines capabilities for authentication and data-integrity algorithms but does not provide the capability for encryption.
Application layer Layer 7 of the OSI model. Provides an interface between a host’s communication software and any necessary external applications (that is, email, file transfers, and terminal emulation). his layer can also evaluate what resources are necessary to communicate between two devices and determine their availability.
area : a subdivision of an autonomous system composed of groups of contiguous networks and attached hosts. Used in link-state routing protocols to minimize routing update overhead and confine network instability.
ARP (Address Resolution Protocol) : a protocol that maps a known IP address to a MAC address by sending a broadcast ARP. When the destination IP address is on another subnet, the sender broadcasts ARP for the router’s Ethernet port or default gateway, so the MAC address sent back is that of the router’s Ethernet port.
ASP (AppleTalk Session Protocol) : a session layer protocol that manages client/server based communications, but is specific to AppleTalk client and server devices.
asynchronous A serial interface that does not synchronize the clocks for the bit stream of the sending and receiving end of a serial link.
ATM (Asynchronous Transfer Mode) : a packet-switched connection type that reaches high speeds by dividing all packets into equal-sized cells of 53 bytes each.
attenuation : a term used to describe how a signal loses strength over long distances.
authentication The process of requiring or prompting for credentials before a device can access the network.
autonomous system : a collection of routing devices under the same administrative control.
autonomous system number : an indicator in an IGRP and EIGRP configuration that identifies the autonomous system to which the routers are actively sending routing updates.
auxiliary port An out-of-band management connection used to connect to an external modem with a rollover cable.

glossary review of networking academy

10BASE-T An IEEE 802.3 Ethernet standard that has a maximum segment length of 100m and has a 10Mbps data transmission speed. 10BASE-T can use Category 3, 4, or 5 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cables for connectivity.
802.11a An IEEE wireless networking standard released in 1999 that uses the 5GHz frequency range. 802.11a clients can theoretically transmit at a maximum speed of 54Mbps.
802.11b An IEEE wireless networking standard released in 1999 that uses the 2.4GHz frequency range. 802.11b clientscan the oretically transmit at a maximum speed of 11Mbps.
802.11g An IEEE wireless networking standard released in 2003 that uses the 2.4GHz frequency range. 802.11g clients can theoretically transmit at a maximum speed of 54Mbps. This standard is backward compatible with 802.11b clients.
802.11n A predraft standard for wireless networking that uses Multiple Input, Multiple Output (MIMO) signals to achieve higher throughput. Current predraft equipment uses the 2.4GHz frequency range.
802.1q An IEEE frame-tagging method over trunk ports that insert the 4-byte VLAN identifier inside the original Ethernet frame.
802.1x An authentication protocol geared toward LAN environments. 802.1x requires that users authenticate to the network before they are granted wired or wireless access.

AAA (Authentication, Authorization, and Accounting) A group of three services that are used in conjunction with an authentication server and a software service such as Terminal Access Controller Access Control
System (TACACS) or Remote Authentication Dial-in User Service (RADIUS) to provide a secure network connection with a record of user activities.
ABR (Area Border Router) : a router that sits between multiple areas in a hierarchical OSPF network. These routers are responsife for summarizing subnets to the rest of the OSPF autonomous system. Because they must maintain topology information from several areas, these routers are typically robust in resources.
access attack : a class of attack in which a hacker attempts to access another user account or network device through improper means.
access class : the command used to apply an access list to vty ports.
access port : a switch port that has a single VLAN assigned to it. These are typically used for connectivity between end devices.
ACTIVE, INACTIVE, and DELETED PVC status The three states of a Frame Relay PVC. Active means that the connection is good on both ends. Inactive means that the remote router is misconfigured. Deleted means that the local router is misconfigured.
adjacency A term that describes the state after two OSPF neighbors have synchronized their topology databases.
administrative distance : an arbitrary value between 1 and 255 that is assigned to determine the trustworthiness of the routing sources.
advertised distance : the composite metric to a destination that is being advertised from our EIGRP neighbors.
AES (Advanced Encryption Standard) : the newest encryption algorithm. It is managed by the National Institute of Standards and Technology (NIST), a division of the U.S. government. It was designed to increase encryption strength beyond the DES and 3DES standards and yet be more efficient on the device’s processor. As it stands today, AES offers 128-, 192-, and 256-bit encryption.
AH (Authentication Header) One of the components that powers the IPsec security suite of protocols. AH defines capabilities for authentication and data-integrity algorithms but does not provide the capability for encryption.
Application layer Layer 7 of the OSI model. Provides an interface between a host’s communication software and any necessary external applications (that is, email, file transfers, and terminal emulation). his layer can also evaluate what resources are necessary to communicate between two devices and determine their availability.
area : a subdivision of an autonomous system composed of groups of contiguous networks and attached hosts. Used in link-state routing protocols to minimize routing update overhead and confine network instability.
ARP (Address Resolution Protocol) : a protocol that maps a known IP address to a MAC address by sending a broadcast ARP. When the destination IP address is on another subnet, the sender broadcasts ARP for the router’s Ethernet port or default gateway, so the MAC address sent back is that of the router’s Ethernet port.
ASP (AppleTalk Session Protocol) : a session layer protocol that manages client/server based communications, but is specific to AppleTalk client and server devices.
asynchronous A serial interface that does not synchronize the clocks for the bit stream of the sending and receiving end of a serial link.
ATM (Asynchronous Transfer Mode) : a packet-switched connection type that reaches high speeds by dividing all packets into equal-sized cells of 53 bytes each.
attenuation : a term used to describe how a signal loses strength over long distances.
authentication The process of requiring or prompting for credentials before a device can access the network.
autonomous system : a collection of routing devices under the same administrative control.
autonomous system number : an indicator in an IGRP and EIGRP configuration that identifies the autonomous system to which the routers are actively sending routing updates.
auxiliary port An out-of-band management connection used to connect to an external modem with a rollover cable.

glossary review of networking academy

10BASE-T An IEEE 802.3 Ethernet standard that has a maximum segment length of 100m and has a 10Mbps data transmission speed. 10BASE-T can use Category 3, 4, or 5 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cables for connectivity.
802.11a An IEEE wireless networking standard released in 1999 that uses the 5GHz frequency range. 802.11a clients can theoretically transmit at a maximum speed of 54Mbps.
802.11b An IEEE wireless networking standard released in 1999 that uses the 2.4GHz frequency range. 802.11b clientscan the oretically transmit at a maximum speed of 11Mbps.
802.11g An IEEE wireless networking standard released in 2003 that uses the 2.4GHz frequency range. 802.11g clients can theoretically transmit at a maximum speed of 54Mbps. This standard is backward compatible with 802.11b clients.
802.11n A predraft standard for wireless networking that uses Multiple Input, Multiple Output (MIMO) signals to achieve higher throughput. Current predraft equipment uses the 2.4GHz frequency range.
802.1q An IEEE frame-tagging method over trunk ports that insert the 4-byte VLAN identifier inside the original Ethernet frame.
802.1x An authentication protocol geared toward LAN environments. 802.1x requires that users authenticate to the network before they are granted wired or wireless access.

AAA (Authentication, Authorization, and Accounting) A group of three services that are used in conjunction with an authentication server and a software service such as Terminal Access Controller Access Control
System (TACACS) or Remote Authentication Dial-in User Service (RADIUS) to provide a secure network connection with a record of user activities.
ABR (Area Border Router) : a router that sits between multiple areas in a hierarchical OSPF network. These routers are responsife for summarizing subnets to the rest of the OSPF autonomous system. Because they must maintain topology information from several areas, these routers are typically robust in resources.
access attack : a class of attack in which a hacker attempts to access another user account or network device through improper means.
access class : the command used to apply an access list to vty ports.
access port : a switch port that has a single VLAN assigned to it. These are typically used for connectivity between end devices.
ACTIVE, INACTIVE, and DELETED PVC status The three states of a Frame Relay PVC. Active means that the connection is good on both ends. Inactive means that the remote router is misconfigured. Deleted means that the local router is misconfigured.
adjacency A term that describes the state after two OSPF neighbors have synchronized their topology databases.
administrative distance : an arbitrary value between 1 and 255 that is assigned to determine the trustworthiness of the routing sources.
advertised distance : the composite metric to a destination that is being advertised from our EIGRP neighbors.
AES (Advanced Encryption Standard) : the newest encryption algorithm. It is managed by the National Institute of Standards and Technology (NIST), a division of the U.S. government. It was designed to increase encryption strength beyond the DES and 3DES standards and yet be more efficient on the device’s processor. As it stands today, AES offers 128-, 192-, and 256-bit encryption.
AH (Authentication Header) One of the components that powers the IPsec security suite of protocols. AH defines capabilities for authentication and data-integrity algorithms but does not provide the capability for encryption.
Application layer Layer 7 of the OSI model. Provides an interface between a host’s communication software and any necessary external applications (that is, email, file transfers, and terminal emulation). his layer can also evaluate what resources are necessary to communicate between two devices and determine their availability.
area : a subdivision of an autonomous system composed of groups of contiguous networks and attached hosts. Used in link-state routing protocols to minimize routing update overhead and confine network instability.
ARP (Address Resolution Protocol) : a protocol that maps a known IP address to a MAC address by sending a broadcast ARP. When the destination IP address is on another subnet, the sender broadcasts ARP for the router’s Ethernet port or default gateway, so the MAC address sent back is that of the router’s Ethernet port.
ASP (AppleTalk Session Protocol) : a session layer protocol that manages client/server based communications, but is specific to AppleTalk client and server devices.
asynchronous A serial interface that does not synchronize the clocks for the bit stream of the sending and receiving end of a serial link.
ATM (Asynchronous Transfer Mode) : a packet-switched connection type that reaches high speeds by dividing all packets into equal-sized cells of 53 bytes each.
attenuation : a term used to describe how a signal loses strength over long distances.
authentication The process of requiring or prompting for credentials before a device can access the network.
autonomous system : a collection of routing devices under the same administrative control.
autonomous system number : an indicator in an IGRP and EIGRP configuration that identifies the autonomous system to which the routers are actively sending routing updates.
auxiliary port An out-of-band management connection used to connect to an external modem with a rollover cable.

glossary review of networking academy indonesia

10BASE-T An IEEE 802.3 Ethernet standard that has a maximum segment length of 100m and has a 10Mbps data transmission speed. 10BASE-T can use Category 3, 4, or 5 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cables for connectivity.
802.11a An IEEE wireless networking standard released in 1999 that uses the 5GHz frequency range. 802.11a clients can theoretically transmit at a maximum speed of 54Mbps.
802.11b An IEEE wireless networking standard released in 1999 that uses the 2.4GHz frequency range. 802.11b clientscan the oretically transmit at a maximum speed of 11Mbps.
802.11g An IEEE wireless networking standard released in 2003 that uses the 2.4GHz frequency range. 802.11g clients can theoretically transmit at a maximum speed of 54Mbps. This standard is backward compatible with 802.11b clients.
802.11n A predraft standard for wireless networking that uses Multiple Input, Multiple Output (MIMO) signals to achieve higher throughput. Current predraft equipment uses the 2.4GHz frequency range.
802.1q An IEEE frame-tagging method over trunk ports that insert the 4-byte VLAN identifier inside the original Ethernet frame.
802.1x An authentication protocol geared toward LAN environments. 802.1x requires that users authenticate to the network before they are granted wired or wireless access.

AAA (Authentication, Authorization, and Accounting) A group of three services that are used in conjunction with an authentication server and a software service such as Terminal Access Controller Access Control
System (TACACS) or Remote Authentication Dial-in User Service (RADIUS) to provide a secure network connection with a record of user activities.
ABR (Area Border Router) : a router that sits between multiple areas in a hierarchical OSPF network. These routers are responsife for summarizing subnets to the rest of the OSPF autonomous system. Because they must maintain topology information from several areas, these routers are typically robust in resources.
access attack : a class of attack in which a hacker attempts to access another user account or network device through improper means.
access class : the command used to apply an access list to vty ports.
access port : a switch port that has a single VLAN assigned to it. These are typically used for connectivity between end devices.
ACTIVE, INACTIVE, and DELETED PVC status The three states of a Frame Relay PVC. Active means that the connection is good on both ends. Inactive means that the remote router is misconfigured. Deleted means that the local router is misconfigured.
adjacency A term that describes the state after two OSPF neighbors have synchronized their topology databases.
administrative distance : an arbitrary value between 1 and 255 that is assigned to determine the trustworthiness of the routing sources.
advertised distance : the composite metric to a destination that is being advertised from our EIGRP neighbors.
AES (Advanced Encryption Standard) : the newest encryption algorithm. It is managed by the National Institute of Standards and Technology (NIST), a division of the U.S. government. It was designed to increase encryption strength beyond the DES and 3DES standards and yet be more efficient on the device’s processor. As it stands today, AES offers 128-, 192-, and 256-bit encryption.
AH (Authentication Header) One of the components that powers the IPsec security suite of protocols. AH defines capabilities for authentication and data-integrity algorithms but does not provide the capability for encryption.
Application layer Layer 7 of the OSI model. Provides an interface between a host’s communication software and any necessary external applications (that is, email, file transfers, and terminal emulation). his layer can also evaluate what resources are necessary to communicate between two devices and determine their availability.
area : a subdivision of an autonomous system composed of groups of contiguous networks and attached hosts. Used in link-state routing protocols to minimize routing update overhead and confine network instability.
ARP (Address Resolution Protocol) : a protocol that maps a known IP address to a MAC address by sending a broadcast ARP. When the destination IP address is on another subnet, the sender broadcasts ARP for the router’s Ethernet port or default gateway, so the MAC address sent back is that of the router’s Ethernet port.
ASP (AppleTalk Session Protocol) : a session layer protocol that manages client/server based communications, but is specific to AppleTalk client and server devices.
asynchronous A serial interface that does not synchronize the clocks for the bit stream of the sending and receiving end of a serial link.
ATM (Asynchronous Transfer Mode) : a packet-switched connection type that reaches high speeds by dividing all packets into equal-sized cells of 53 bytes each.
attenuation : a term used to describe how a signal loses strength over long distances.
authentication The process of requiring or prompting for credentials before a device can access the network.
autonomous system : a collection of routing devices under the same administrative control.
autonomous system number : an indicator in an IGRP and EIGRP configuration that identifies the autonomous system to which the routers are actively sending routing updates.
auxiliary port An out-of-band management connection used to connect to an external modem with a rollover cable.

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