Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1891: In an ARP request, what address is used to identify the sender?
- A: MAC address
- B: Port address
- C: IP address
- D: Subnet mask
View Answer
A
Q1892: What happens if an ARP reply is not received?
- A: The sender retries the request until a reply is received
- B: The sender discards the request and tries another method
- C: The sender waits for the ARP cache to expire
- D: The sender stops all communication
View Answer
D
Q1893: Fill in the blank: ARP is used in _______ networks to map IP addresses to MAC addresses.
- A: IPv6
- B: IPv4
- C: Wi-Fi
- D: Mesh
View Answer
B
Q1894: What is the purpose of the ARP cache?
- A: To speed up the process of resolving IP addresses to MAC addresses
- B: To store all active IP addresses on the network
- C: To store the network routes between IP addresses
- D: To map domain names to IP addresses
View Answer
A
Q1895: In ARP, if a device does not know the MAC address corresponding to an IP address, it sends a(n) _______ request.
- A: ARP
- B: ICMP
- C: DHCP
- D: TCP
View Answer
A
Q1896: Fill in the blank: ARP requests are generally broadcast in a _______ network.
- A: single-node
- B: shared
- C: local remote
- D: star
View Answer
A
Q1897: What happens after a device receives an ARP reply?
- A: It stores the IP-MAC mapping in its ARP cache
- B: Forwards the ARP reply to other devices in the network
- C: Uses the MAC address to route the packet
- D: Deletes the ARP reply after use
View Answer
A
Q1898: Which of the following is a typical size of an ARP message?
- A: 64 bytes
- B: 100 bytes
- C: 40 bytes
- D: 60 bytes
View Answer
C
Q1899: Which ARP message is sent when a device requests the MAC address for an IP address?
- A: ARP request
- B: ARP reply
- C: ARP probe
- D: ARP response
View Answer
A
Q1900: Fill in the blank: The ARP protocol is crucial in translating IP addresses to _______ addresses in the data link layer.
- A: Physical
- B: Link-layer
- C: Domain
- D: Network
View Answer
B