Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q651: Signaling messages in ATM are sent using ________.
- A: Packets
- B: Cells
- C: Frames
- D: Segments
View Answer
B
Q652: Which table does Switch B use when receiving a VPI/VCI of 4?
- A: Transmission table
- B: Forwarding table
- C: Encoding table
- D: Encryption table
View Answer
B
Q653: ATM connection setup involves communication between ________.
- A: Ports only
- B: Computers only
- C: Switch pairs
- D: Switch to router
View Answer
C
Q654: Which of the following is TRUE about signaling in ATM?
- A: It uses normal data cells
- B: It uses reserved VPI/VCI
- C: It bypasses the switch
- D: It encrypts headers
View Answer
B
Q655: ATM is used to create virtual connections using ________.
- A: Ethernet
- B: IP routing
- C: VCI/VPI
- D: MAC addressing
View Answer
C
Q656: Label switching systems like ATM use ________ rewriting.
- A: VPI/VCI
- B: MAC/IP
- C: Path/Port
- D: Route/Header
View Answer
A
Q657: Why did ATM designers choose fixed-length cells over variable-length packets?
- A: To simplify hardware
- B: To reduce costs
- C: To increase variability
- D: To promote LAN use
View Answer
A
Q658: Which of the following leads to memory fragmentation in networks?
- A: Fixed-length cells
- B: Short packets
- C: Variable-length packets
- D: Header compression
View Answer
C
Q659: What is a disadvantage of using variable-length packets?
- A: Simple memory handling
- B: Easy interrupt management
- C: Better QoS
- D: Complex hardware needed to detect packet ends
View Answer
D
Q660: ATM ensures better QoS by using
- A: Variable-length packets
- B: Fixed-length cells
- C: Packet delay
- D: Interrupts
View Answer
B