All Free Computer Science and IT MCQs with Answers

1161. TCP stands for ________?

• A. Transmission Centric Protocol
• B. Transfer Control Protocol
• C. Transmission Control Protocol
• D. Transmission Control Process

Explanation: TCP means Transmission Control Protocol and provides reliable, ordered delivery of data across networks. “Protocol” refers to the agreed rules for communication, not a transmission process.

1162. NOS stands for ________?

• A. New Operating System
• B. Network Operating Source
• C. Network Operating System
• D. Network Original System

Explanation: NOS means Network Operating System, software that provides network services such as user management, shared resources, and network administration. “Source” and “original” do not describe this operating-system category.

1163. IP stands for ________?

• A. Intranet Process
• B. Internet Process
• C. Intranet Protocol
• D. Internet Protocol

Explanation: IP means Internet Protocol, the network-layer protocol used to address and route packets between networks. “Internet Process” is a tempting but incorrect expansion.

1164. MAC stands for ________?

• A. Mass Access Control
• B. Media Access Control
• C. Mass Access Carraige
• D. Media Access Carraige

Explanation: MAC means Media Access Control, the data-link sublayer concerned with hardware addressing and access to the transmission medium. “Mass Access Control” is not a networking term.

1165. FTP stands for ________?

• A. Fix Transfer Protocol
• B. File Transfer Procedure
• C. File Transfer Protocol
• D. First Transfer Protocol

Explanation: FTP means File Transfer Protocol, used to transfer files between a client and a server. “Protocol” identifies a defined set of communication rules, unlike the vague word “procedure.”

1166. NIC stands for

• A. Network Information center
• B. Network Identity Card
• C. Network Interface Card
• D. Network Internet Card

Explanation: NIC means Network Interface Card, the hardware that connects a computer to a network. It may also be called a network interface controller or adapter.

1167. RJ45 UTP cable has ______ cables.

• A. 2 pair
• B. 3 pair
• C. 4 pair
• D. 5 pair

Explanation: A standard RJ45 UTP Ethernet cable contains four twisted pairs, or eight individual wires. The pairs reduce electromagnetic interference between the conductors.

1168. In peer-to-peer networking:

• A. there is only one server and many clients
• B. there is only one client and many servers
• C. every computer is capable of playing the role of server
• D. every computer is capable of playing the role of client, server or both at the same time

Explanation: In peer-to-peer networking, there is no permanently dedicated central server. Each computer can act as a client, a server, or both, depending on the resource being requested or shared.

1169. FTP stand for__________?

• A. File Transfer Post
• B. File Transfer Protocol
• C. File Transit Protocol
• D. None of these

Explanation: FTP stands for File Transfer Protocol, which is used to transfer files between computers over a network. “Transit” and “Post” are not part of the protocol's name.

1170. The birthplace of the World Wide Web was__________?

• A. NASA
• B. Pentagon
• C. CERN
• D. Microsoft

Explanation: The World Wide Web was developed by Tim Berners-Lee at CERN, the European research organization. NASA, the Pentagon, and Microsoft were not its birthplace.