Switch ACLs for PC Communication Issues | Network+ Exam Question | CompTIA

Network+ Exam Question: Switch ACLs and PC Communication Issues

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Question

A network technician is reviewing switch ACLs to determine if they are causing communication issues with one PC.

The PC's IP address is 192.168.12.66

Which of the following is the network range found in the ACL that could have affected this PC?

A.

192.168.12.97 255.255.255.192 B.

192.168.12.97 255.255.255.224 C.

192.168.12.97 255.255.255.240 D.

192.168.12.97 255.255.255.248

A.

Explanations

A network technician is reviewing switch ACLs to determine if they are causing communication issues with one PC.

The PC's IP address is 192.168.12.66

Which of the following is the network range found in the ACL that could have affected this PC?

A.

192.168.12.97 255.255.255.192

B.

192.168.12.97 255.255.255.224

C.

192.168.12.97 255.255.255.240

D.

192.168.12.97 255.255.255.248

A.

To determine if an Access Control List (ACL) is causing communication issues with a specific PC, we need to review the ACL for any rules that could potentially block traffic to or from that PC.

The IP address of the PC in question is 192.168.12.66, which falls within the 192.168.12.0/24 network range (i.e., the network address is 192.168.12.0 and the subnet mask is 255.255.255.0).

Each of the answer choices includes an IP address and subnet mask, which represents a network range. To determine if a network range could have affected the PC in question, we need to check if the PC's IP address falls within that range.

Let's check each answer choice:

A. 192.168.12.97 255.255.255.192

This represents the network range 192.168.12.97 to 192.168.12.158, with a subnet mask of 255.255.255.192. This range does not include the PC's IP address of 192.168.12.66, so it is not a match.

B. 192.168.12.97 255.255.255.224

This represents the network range 192.168.12.97 to 192.168.12.126, with a subnet mask of 255.255.255.224. This range does not include the PC's IP address of 192.168.12.66, so it is not a match.

C. 192.168.12.97 255.255.255.240

This represents the network range 192.168.12.97 to 192.168.12.110, with a subnet mask of 255.255.255.240. This range does not include the PC's IP address of 192.168.12.66, so it is not a match.

D. 192.168.12.97 255.255.255.248

This represents the network range 192.168.12.97 to 192.168.12.102, with a subnet mask of 255.255.255.248. This range includes the PC's IP address of 192.168.12.66, so it is a match.

Therefore, the answer is D. The network range found in the ACL that could have affected this PC is 192.168.12.97 255.255.255.248.