All Free Computer Science and IT MCQs with Answers

1111. E-mail is a system for exchanging messages through a__________?

• A. Client
• B. Program
• C. Network
• D. Backbone

Explanation: E-mail exchanges messages through a computer network, which connects senders and recipients using mail servers. A client is only the application used to access that network service.

1112. Hyperlink is __________________?

• A. Blue text with Bold
• B. Blue text with Italic
• C. Blue text with without underline
• D. Blue text with underline

Explanation: In the traditional appearance of web documents, an unvisited hyperlink is shown as blue, underlined text. Modern websites may use different colors or remove underlining through styling, but option d describes the conventional form.

1113. Who is father of computer networking?

• A. Ray Noorda
• B. Vint Cerf
• C. Google
• D. Novell

Explanation: Ray Noorda is often called the father of computer networking because of his major role in developing Novell's network software and networking industry. Vint Cerf is more precisely known as a father of the Internet.

1114. Which one of the following is not a client server application?

• A. Internet chat
• B. Web browsing
• C. E-mail
• D. ping

Explanation: Ping is a network diagnostic utility that uses ICMP echo messages rather than a typical client-server application service. Web browsing, email, and internet chat normally involve a client communicating with a server.

1115. Arrangement of Computer is called?

• A. Setting
• B. Topology
• C. Processing
• D. Wiring

Explanation: Topology describes the arrangement or layout of computers and connections in a network, such as star, bus, or ring. Setting and wiring do not name the formal network arrangement.

1116. Which protocol is used to automatically assign TCP/IP configuration information?

• A. DNS
• B. DHCP
• C. NetBIOS
• D. NetLink

Explanation: DHCP automatically provides hosts with TCP/IP settings such as an IP address, subnet mask, gateway, and DNS server. DNS resolves names to addresses, but does not normally assign the complete configuration.

1117. Money transfer through mobile is called

• A. IFSC
• B. IMPS
• C. ATM
• D. IFS

Explanation: IMPS, or Immediate Payment Service, enables instant bank transfers through mobile and other electronic channels. ATM is a transaction device, while IFSC identifies a bank branch rather than transferring money.

1118. Which algorithm is used to decide the path to transfer the packets from source to destination?

• A. Routing
• B. Selecting
• C. Pathing
• D. Directing

Explanation: Routing determines a suitable path for forwarding packets from their source network to the destination network. The other terms are not standard names for this network-layer function.

1119. In the following list of devices, which device is used in datalink layer?

• A. Repeaters
• B. Routers
• C. Application gateway
• D. Bridge

Explanation: A bridge operates at the OSI data-link layer and forwards frames using MAC addresses. Repeaters work at the physical layer, while routers work at the network layer.

1120. In which mode can the computers that are associated send frames directly to each other?

• A. Adhoc mode
• B. Infrastructure mode
• C. Structured mode
• D. Anonymous mode

Explanation: In ad hoc mode, wireless devices communicate directly with one another without requiring an access point. Infrastructure mode normally sends communication through a wireless access point.