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Question 472 - N10-008 discussion

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An engineer is using a tool to run an ICMP sweep of a network to find devices that are online. When reviewing the results, the engineer notices a number of workstations that are currently verified as being online are not listed in the report.

The tool was configured to scan using the following information:

Network address: 172.28.16.0

CIDR: /22

The engineer collected the following information from the client workstation:

IP address: 172.28.17.206

Subnet mask: 255.255.252.0

Which of the following MOST likely explains why the tool is failing to detect some workstations?

A.
The scanned network range is incorrect.
Answers
A.
The scanned network range is incorrect.
B.
The subnet mask on the client is misconfigured.
Answers
B.
The subnet mask on the client is misconfigured.
C.
The workstation has a firewall enabled.
Answers
C.
The workstation has a firewall enabled.
D.
The tool is unable to scan remote networks.
Answers
D.
The tool is unable to scan remote networks.
Suggested answer: C

Explanation:

A firewall is a device or software that filters and controls the incoming and outgoing network traffic based on predefined rules. A firewall can block ICMP packets, which are used for ping and other diagnostic tools. If the workstation has a firewall enabled, it may not respond to the ICMP sweep and appear as offline. The engineer should check the firewall settings on the workstation and allow ICMP traffic if needed.

Reference: Network+ Study Guide Objective 4.1: Given a scenario, use the appropriate tool.

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asked 02/10/2024
Robert Andrade
47 questions
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