Basic Computer Networks Questions and Answers
Basic Computer Networks questions with answers help learners understand key networking concepts essential for IT and engineering students. This topic covers OSI layers, TCP/IP model, IP addressing, routing, and network devices like switches and routers. These technical interview questions and answers are commonly asked in campus placements and certification exams by companies such as Cisco, TCS, and Infosys. By practicing networking MCQs and interview-based questions, students can strengthen their fundamentals and perform better in both theoretical and practical assessments related to computer networks.
Basic Computer Networks
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217 questions
101. When a protocol specifies that the address of the sender means the most recent sender and not the original source, what does this mean?
- syntax
- semantics
- timing
- none of the above
102. In a network with 25 computers, which topology would require the most extensive cabling ?
- mesh
- star
- bus
- ring
103. In which topology, if there are n devices in a network, each device has n-1 ports for cables ?
- mesh
- star
- bus
- ring
104. A network that contains multiple hubs is most likely configured in which topology.
- mesh
- tree
- bus
- star
105. Which model shows how the network functions of a computer ought to be organized ?
- ITU-T
- OSI
- ISO
- ANSI
106. Decryption and encryption of data are the responsibility of which of the following layer ?
- physical
- data link
- presentation
- session
107. When data is transmitted from device A to device B, the header from A's layer 5 is read by B's
- physical layer
- transport layer
- session layer
- presentation layer
108. In which layer, translations from one character code to another occur ?
- transport
- session
- presentation
- application
109. Which layer functions as a liaison between user support layers and network support layers ?
- network layer
- physical layer
- transport layer
- session layer
110. Which of the following are session layer checkpoints ?
- allow just a portion of a file to be resent
- detect and recover errors
- control the addition of headers
- are involved in dialog control