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ISTM 610 - Exam 1 Terms
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ISTM 610 - Exam 1 Terms Data Communications - answerThe movement of computer information from one point to another by means of electrical or optical transmission systems. Telecommunications - answerA broader term than data communications and includes the transmission of voice and video (images ...

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  • October 18, 2024
  • 21
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ISTM 610
  • ISTM 610

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©SIRJOEL EXAM SOLUTIONS
10/14/2024 11:14 PM


ISTM 610 - Exam 1 Terms




Data Communications - answer✔The movement of computer information from one point to

another by means of electrical or optical transmission systems.


Telecommunications - answer✔A broader term than data communications and includes the

transmission of voice and video (images and graphics) as well as data and usually implies longer

distances.


Client - answer✔A user device to access a network and receive data from a server. (e.g., web

server, mail server, laptops, tablets, cell phones, etc.)


Server - answer✔A device that stores and transmits data to a client. (e.g., web server, mail

server, file server)


Circuit - answer✔A pathway or connection between client and server. (e.g., copper wire, fiber

optic cable, wireless)


Local Area Network (LAN) - answer✔Covers a small, clearly defined area. Might contain a

single floor or work area or single building. When this uses a wireless circuit, it is called a

Wireless [term] (W___)

, ©SIRJOEL EXAM SOLUTIONS
10/14/2024 11:14 PM
Backbone Network (BN) - answer✔A high-speed network connecting other networks together.

May span hundreds of feet to several miles.


Wide Area Network (WAN) - answer✔Has the largest geographic scope of networks. Often

composed of leased circuits. May span hundreds or thousands of miles.


Intranet - answer✔A network (often a LAN) that uses the Internet technologies to share

information within an organization.

Open only to those inside the organization.

(e.g., employees accessing budgets, calendars, and payroll information available through the

organization's [term])


Extranet - answer✔A network that uses the Internet technologies to share information between

organizations.

Open only to those invited users outside the organization.

Accessible through the Internet.

(e.g., suppliers and customers accessing the inventory information of a company over an [term])


Network Models - answer✔Divide communication functions into layers.


Two types: Open System Interconnection Reference Model (OSI model) and Internet Model (or

TCP/IP model)


Protocol - answer✔Defines the language of transmission.

, ©SIRJOEL EXAM SOLUTIONS
10/14/2024 11:14 PM
It specifies the rules, functionality, and messages for communication at the layer.


Protocol Data Unit (PDU) - answer✔Contains layer-specific information necessary for a

message to be transmitted through a network.

Each layer adds a [term]

[term]s act like nested envelopes


Encapsulation - answer✔Occurs when a higher level Protocol Data Unit is placed inside of a

lower level Protocol Data Unit.


Application - answer✔Network Layer


-Purpose: user's access to network, software to perform work.

-Example of Protocols/Standards: HTTP, SMTP, DNS, FTP, DHCP, IMAP, POP, SSL

-Protocol Data Unit (PDU): Packet (or Data)


Transport - answer✔Network Layer


-Purpose: end-to-end management: 1) link application layer to network 2)segmenting and

tracking 3)flow control

-Example of Protocols/Standards: TCP, UDP

-Protocol Data Unit (PDU): Segment


Network - answer✔Network Layer

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