100-160 Question 64
Single answerA network administrator notices that a specific device in the network is unable to communicate with others after a recent update to the router's DHCP settings. Which protocol should the administrator investigate to ensure the device has the correct IP configuration?
- A
TCP
- B
DHCP
- C
ARP
- D
ICMP
Show answer and explanation
Correct answer: B
Explanation
The DHCP protocol is responsible for dynamically assigning IP addresses and other network configurations to devices in a network. If the device is unable to communicate, it is possible that it did not receive the correct IP configuration from the DHCP server. Investigating DHCP settings would be the first step in resolving the issue.
- A. Incorrect.
TCP (Transmission Control Protocol) is responsible for reliable communication between devices, but it does not handle IP address assignment or configuration.
- B. Correct.
DHCP (Dynamic Host Configuration Protocol) is responsible for assigning IP addresses and other network configurations to devices. An issue with DHCP could result in a device not receiving the correct IP configuration.
- C. Incorrect.
ARP (Address Resolution Protocol) translates IP addresses to MAC addresses within the same network but does not handle IP address assignment.
- D. Incorrect.
ICMP (Internet Control Message Protocol) is used for diagnostic purposes, such as pinging devices, but it does not manage IP address assignment or configuration.