Diagnosing Network Connectivity Issues when Replacing a Desktop

A technician has replaced a customer's desktop with a known-good model from storage.

However, the replacement desktop will not connect to network resources.

The technician suspects the desktop has not been kept up to date with security patches.

Which of the following is MOST likely in place?

A.

ACL

B.

NAC

C.

Traffic shaping

D.

SDN

E.

NTP.

B.

The correct answer to the question is B. NAC (Network Access Control).

Network Access Control (NAC) is a security solution that helps organizations control access to their networks. It enforces security policies, such as verifying the identity of users and devices, checking for the presence of antivirus software and security patches, and ensuring that devices are compliant with network policies before granting access to network resources.

In the given scenario, the technician suspects that the replacement desktop has not been kept up to date with security patches. This indicates that the network may have NAC in place, which is preventing the replacement desktop from connecting to network resources until it is verified and meets the network's security standards.

ACL (Access Control List) is a list of permissions attached to an object that specifies which users or system processes are granted access to objects such as network resources.

Traffic shaping is a technique used to manage network traffic by controlling the bandwidth used by specific applications or users.

SDN (Software-Defined Networking) is an approach to networking that allows network administrators to manage network services through abstraction of lower-level functionality.

NTP (Network Time Protocol) is a protocol used to synchronize the clocks of computers and network devices to a reference time source.

Therefore, NAC is the most likely solution in place that is preventing the replacement desktop from connecting to network resources.