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
Showing 10 of
217 questions
181. Error detection at the data link level is achieved by
- bit stuffing
- cyclic redundancy codes
- Hamming codes
- equalization
182. Which of the following is a wrong example of a network layer ?
- Internet Protocol (IP)-ARPANET
- X.25 Packet Level Protocol (PLP)-ISO
- Source routing and domain naming-USENET
- X.25 Level 2-ISO
183. The topology with highest reliability is
- bus topology
- star topology
- ring topology
- mesh topology
184. baud means
- the number of bits transmitted per unit time
- the number of bytes transmitted per unit time
- the rate at which the signal changes
- none of the above
185. Start and stop bits are used in serial communication for
- error detection
- error correction
- synchronization
- slowing down the communication
186. Unmodulated signal coming from a transmitter is known as
- carrier signal
- baseband signal
- primary signal
- none of the above
187. Manchester code is a
- Bi-polar code
- non return to zero code
- polar code
- none of the above
188. Pick the incorrect statements.
- Another name for primary/secondary protocol is master/slave
- Peer to peer protocol provides equal status to all sites on the channel.
- Priority, non-priority types come under master/slave protocol
- TDM is a primary/secondary non-priority system.
189. Pick the correct statements.
- A switched circuit is a dial-up circuit that may encounter blockage (busy signal).
- Non switched leased line supports higher data volume and quality than switched lines.
- Non switched lines are expensive for high volume data
- Switched circuit provides faster response time.
190. Pick the incorrect statements that pertain to error retransmission used in continuous ARQ method.
- Go-back-N method required more storage at the receiving site
- Selective Repeat involves complex login than Go-bak-N.
- Go-back-N has better line utilisation
- Selective Repeat has better line utilisation