Data Communication and Networking MCQs offer a valuable resource to test and enhance your understanding of the intricate world of data transmission, network protocols, and communication technologies. Whether you’re a student preparing for exams or a professional aiming to strengthen your knowledge, these multiple-choice questions with Answers cover a wide spectrum of topics, including network architecture, protocols, and security. These MCQs will help students in university exams,competitive exams and interviews preparation.
Section-1
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. Protocols in which the sender sends one frame and then waits for an acknowledgement before proceeding are called __________
- sliding window.
- stop and wait.
- frame buffer.
- analog.
B. stop and wait.
2. The data link layer takes the packet it gets from the network layer and encapsulates them into ___________
- cells
- frames
- packet
- trailer
B. frames
3. The data link layer takes the packets from _____ and encapsulates them into frames for transmission.
- network layer
- physical layer
- transport layer
- application layer
A. network layer
4. Which one of the following task is not done by data link layer?
- framing
- error control
- flow control
- channel coding
D. channel coding
5. Protocols in which the sender waits for a positive acknowledgement before advancing to the next data item are often called ___________
- ARQ
- PPR
- ARS
- PRP
A. ARQ
6. The commonly used protocol for webpage transfer is ________
- HTML
- HTTP
- WML
- WTTP
B. HTTP
7. The frames which are intimated for receiving are called ________
- sending window.
- receiving window
- sender
- receiver
B. receiving window
8. The analysis which helps in checking whether the protocol is correct is _________
- reachability
- correctness
- reliability
- redundancy
A. reachability
9. The IP address of a system can be known using the DOS command _______
- ipconfir
- ipconfig
- ipconf
- ipnum
B. ipconfig
10. Datagrams using header extension are called __________
- payload
- trailer
- datagram packets
- jumbograms
D. jumbograms
Section-2
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. Communication circuits that transmit data in both directions but not at the same time are operating in ______
- simplex mode.
- half duplex mode
- full duplex mode
- asynchronous mode.
C. full duplex mode
2. The term remote job entry relates to __________
- batch processing.
- real time processing
- transaction processing
- distribute processing
A. batch processing.
3. A required characteristics of an online real-time system is
- offline batch processing
- more than one CPU
- no delay in processing
- good time slice
C. no delay in processing
4. An example of digital, rather than analog communication is _______
- DDD
- WATS
- DDS
- DDT
C. DDS
5. Which of the following communications lines is best suited to interactive processing applications?
- Narrowband channels
- Simplex lines
- Full duplex channel
- Mixed band channels
C. Full duplex channel
6. Data communications monitors available on the software market include__________
- ENVIRON/1
- BPL
- TOTAL
- Telnet
A. ENVIRON/1
7. When an indirect delivery is made, the deliverer and the receiver have __________
- the same IP address
- the same netid
- different IP address.
- different netid
D. different netid
8. In ________ routing, the mask and the destination address are both 0.0.0.0 in the routing table.
- next-hop.
- host-specific
- network-specific
- default.
D. default.
9. The change in specific rotation due to interconversion of a form into b form or vice versa is known as __________
- mutarotation.
- mutarotation.
- isomerisation
- cyclization
B. mutarotation.
10. In ______ routing, the routing tables hold the address of just the next hop instead of complete route information.
- next-hop
- host-specific
- network-specific
- default
D. default
