Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 182
Q2761:
Fill in the blank: Ethernet leaves error handling to ______.
A. the NIC card
B. the cable
C. higher-level protocols
D. the IP layer
Correct Answer:
C
Chapter: 182
Q2762:
In Standard Ethernet, which of the following is NOT a feature?
A. No connection setup
B. Independent frames
C. Connection teardown
D. Guaranteed delivery
Correct Answer:
D
Chapter: 182
Q2763:
What ensures that dropped frames are recovered in Ethernet communication?
A. Ethernet itself
B. Hardware protocols
C. Higher-level protocols
D. Physical cable quality
Correct Answer:
C
Chapter: 182
Q2764:
Fill in the blank: A feature of connectionless service is that the sender ______.
A. must wait for ACKs
B. is notified of loss
C. is unaware of loss
D. uses buffering techniques
Correct Answer:
C
Chapter: 182
Q2765:
Which of the following is true about Ethernet's frame delivery?
A. It uses handshaking
B. It's always reliable
C. It's best-effort delivery
D. It uses error correction
Correct Answer:
C
Chapter: 182
Q2766:
What is the role of TCP when used over Ethernet?
A. It compresses data
B. It ensures connectionless communication
C. It ensures reliable delivery
D. It routes packets
Correct Answer:
C
Chapter: 183
Q2767:
How many bytes are there in an Ethernet MAC address?
A. 4
B. 6
C. 8
D. 10
Correct Answer:
B
Chapter: 183
Q2768:
What is the total number of bits in an Ethernet MAC address?
A. 32 bits
B. 64 bits
C. 48 bits
D. 128 bits
Correct Answer:
C
Chapter: 183
Q2769:
What does a NIC provide to a station?
A. Power supply
B. Physical memory
C. Link layer/physical address
D. IP address
Correct Answer:
C
Chapter: 183
Q2770:
Fill in the blank: A MAC address is typically represented in ______ format.
A. binary
B. decimal
C. hexadecimal
D. ASCII
Correct Answer:
C
Chapter: 183
Q2771:
Which of the following is a valid format for an Ethernet MAC address?
A. 4A:30:10:21:10:1A
B. 192.168.1.1
C. 255.255.255.0
D. 08:23:D1:57:CZ:A2
Correct Answer:
A
Chapter: 183
Q2772:
How can you determine the type of an Ethernet address?
A. Check the first digit
B. Check the third byte
C. Check the second hex digit from the left
D. Check the last bit
Correct Answer:
C
Chapter: 183
Q2773:
If all digits in an Ethernet address are Fs, what type of address is it?
A. Unicast
B. Multicast
C. Broadcast
D. Loopback
Correct Answer:
C
Chapter: 183
Q2774:
What type of address is 47:20:1B:2E:08:EE?
A. Unicast
B. Multicast
C. Broadcast
D. Loopback
Correct Answer:
B
Chapter: 183
Q2775:
Which MAC address represents a broadcast?
A. 4A:30:10:21:10:1A
B. FF:FF:FF:FF:FF:FF
C. 01:00:5E:00:00:FB
D. 47:20:1B:2E:08:EE
Correct Answer:
B
Chapter: 183
Q2776:
Fill in the blank: The MAC address 4A:30:10:21:10:1A is a ______ address.
A. multicast
B. broadcast
C. unicast
D. local
Correct Answer:
C
Chapter: 183
Q2777:
What does each colon-separated part in a MAC address represent?
A. 2 bits
B. 4 bits
C. 8 bits
D. 16 bits
Correct Answer:
C
Chapter: 183
Q2778:
Which of the following determines if a MAC address is multicast?
A. The entire address
B. The first byte
C. Second hex digit is odd
D. All digits are zero
Correct Answer:
C
Chapter: 183
Q2779:
In the address 4A:30:10:21:10:1A, what is the second hex digit?
A. 4
B. A
C. 3
Correct Answer:
B
Chapter: 183
Q2780:
Which binary pattern for the second hex digit indicates a multicast address?
A. 1010
B. 111
C. 1000
Correct Answer:
B