Q. Data unit is called a frame in
✅ Correct Answer: (D)
Data link layer
Data Communication and Networking MCQs and Notes
Q. Dialog control is the function of which layer
✅ Correct Answer: (B)
Session
Q. The OSI model consist of
✅ Correct Answer: (C)
7 layers
Q. A cable break in which topology stops all transmission
✅ Correct Answer: (B)
Bus
Q. Which topology features a point to point line configuration
✅ Correct Answer: (D)
All of above
Q. In a network with 25 computers, which topology would require most extensive calling
✅ Correct Answer: (B)
Star
Q. The information to be communicated in a data communication system is
✅ Correct Answer: (C)
Message
Q. Performance of data communications depend on
✅ Correct Answer: (D)
All of above
Q. Rules that govern a communication exchange are
✅ Correct Answer: (C)
Protocol
Q. Heart of Data Encryption Standard (DES), is the
✅ Correct Answer: (D)
DES function