Data Communications and Networking Midterm., Exams of Advanced Education

Data Communications and Networking Midterm.

Typology: Exams

2025/2026

Available from 04/06/2026

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Data Communications and Networking Midterm.
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Client - ANSWERUser device to access network and receive data from server.
Server - ANSWERDevice that stores and transmits data to client.
Circuit - ANSWERPathway/connection between client and server.
Data communications - ANSWERMovement of computer information from
one point to another by electric/optical transmission.
Local Area Network (LAN) - ANSWERComputer network that covers a small
area.
Backbone Networks - ANSWERHigh-speed networks connecting other
networks together, could span a very large distance.
Wide Area Network (WAN) - ANSWERComputer network that covers a large
area.
Intranet - ANSWERNetwork that shares information within an organization.
Extranet - ANSWERNetwork that shares information between organizations.
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Data Communications and Networking Midterm.

Save Client - ANSWERUser device to access network and receive data from server. Server - ANSWERDevice that stores and transmits data to client. Circuit - ANSWERPathway/connection between client and server. Data communications - ANSWERMovement of computer information from one point to another by electric/optical transmission. Local Area Network (LAN) - ANSWERComputer network that covers a small area. Backbone Networks - ANSWERHigh-speed networks connecting other networks together, could span a very large distance. Wide Area Network (WAN) - ANSWERComputer network that covers a large area. Intranet - ANSWERNetwork that shares information within an organization. Extranet - ANSWERNetwork that shares information between organizations.

Protocol - ANSWERSet of rules that defines what each internet layer will do. Personal Data Unit (PDU) - ANSWERContains information that is needed to transmit the message through the network. Encapsulation - ANSWEREach internet layer fits inside another layer. Massive Open Online Courses (MOCC) - ANSWEREnables students to take classes at universities without having to pay tuition. Hypertext Transfer Protocol (HTTP) - ANSWERStandard communication between a web browser and a web server. Post Office Protocol (POP) and Internet Message Access Protocol (IMAP) - ANSWERStandard communication between an email client and mail server. Simple Mail Transfer Protocol (SMTP) - ANSWERWhen an email client sends out an email, this protocol is used. File Transfer Protocol (FTP) - ANSWERUsed to transport files. Secure Shell (SSH) Protocol - ANSWERExecute commands on a remote system. Domain Name System (DNS) - ANSWERMaps domain names to IP addresses.

Access Request Technique - ANSWEREach device must get permission to transmit. Roll-call Polling - ANSWERThe controller works consecutively through a list of devices. Hub Polling - ANSWEROne device begins poll and then passes it to another device until it reaches them all. Asynchronous Transmission - ANSWERTransmits one character at a time. Synchronous Data Link Control - ANSWERMainframe protocol, uses bit stuffing. Ethernet II - ANSWERMost popular LAN protocol, uses contention media access control. Point-to-Point Protocol (PPP) - ANSWERCommon WAN protocol. Transport Layer Functions (3 functions) - ANSWER1) Linking to the application layer

  1. Segmenting (breaks large files into smaller segments)
  2. Session Management (conversation between two computers) Connection-oriented messaging uses __________. - ANSWERTCP (transmission control protocol.)

Connection-less messaging uses _________. - ANSWERUDP (User Datagram Protocol.) Network Layer Functions (2 functions) - ANSWER1. Addressing: directs messages from source to destination.

  1. Routing: Identifies what path to have a packet take through a network. Centralized Routing - ANSWERRouting decisions made by one computer. Static Routing - ANSWERFixed routing tables, manually configured by managers. Dynamic Routing - ANSWERRouting tables periodically updated. Network Interface Cards - ANSWERAllows you to connect a network cable to a client/server. Hubs/Switches - ANSWERLink cables from different devices. Wireless LAN site survey determines: (3 things) - ANSWER1. Coverage required
  2. Potential interference sources
  3. Number of access points needed