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20 Questions Total

Data Link Layer MCQs

Topic-wise practice questions for Computer Networks & Cloud Computing. Test your knowledge, check solutions on demand, and pace your preparation.

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Q11medium
What happens to a frame if the CRC check fails at the receiver? 

[Dest MAC]: FF:FF:FF:FF:FF:FF
[Source MAC]: 00:0A:95:9D:68:16
[EtherType]: 0x0800 (IPv4)
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Q12easy
Why is the Data Link Layer divided into two sublayers: LLC and MAC?
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Q13medium
Which device operates at Layer 2 and maintains a "CAM Table" (Content Addressable Memory) to map MAC addresses to physical ports?
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Q14medium
A network admin checks the frame format. Based on the hex dump below, what is the MAC address of the source device? wireshark-frame-dump
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Q15easy
What is Transparent Bridging?
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Q16easy
A network frame uses a 16-bit CRC. How many different error patterns can this CRC detect?
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Q17easy
Which of the following is NOT an advantage of Token Ring networks?
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Q18easy
Which of these is a Random Access MAC protocol?
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Q19easy
What is an "Address Resolution Protocol" (ARP) packet used for?
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Q20medium
(Calculation/Logic) A CRC (Cyclic Redundancy Check) uses a generator polynomial. If a frame has 8 bits of data and the CRC checksum is 4 bits, how many bits are actually transmitted?
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