Networking Configuration and the Network+ Exam

Can you spot incorrect networking configuration settings? You should if you plan to take the Network+ exam. You can expect to see networking configuration settings questions as multiple choice and/or performance-based questions.

As an example, check out this partial networking configuration diagram that shows four users (Lisa, Bart, Homer, and Marge) and some servers, all in separate subnets.

Is Bart’s Networking Configuration Correct?

Bart is complaining that he can’t connect to any servers in the network. You need to find out why so you check his networking configuration as shown in the following graphic.

Is this correct? If not, what is wrong with this picture?

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Network+ Study Materials	60 Day Package
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Performance-based Questions At least 10 performance-based questions. See a demo here. This demo includes one sample performance-based question and four sample multiple choice questions.
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All questions include explanations so you’ll know why the correct answers are correct, and why the incorrect answers are incorrect. This way no matter how CompTIA words the questions, you’ll be able to answer them correctly. Multiple quiz formats to let you use these questions based on the way you learn.

• Learn mode. Learn mode allows you to keep selecting answers until you select the correct answer. Once you select the correct answer, you’ll see the explanation.
• Test mode. In test mode, you can only see the correct answers and explanations after you complete the test.

This package allows you to go through the practice test questions in multiple ways based on how you learn best.

• Domains 1 through 5* using Learn Mode
• Domains 1 through 5* using Test Mode (Randomized)
• Special Test Your Readiness Quiz (75 random questions from the full bank)

Test your readiness with these quality questions. Understand the important concepts using the explanations.

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Networking Configuration and the Network+ Exam

The correct configuration for Bart’s computer is:

• Subnet mask: 255.255.255.0
• Default gateway: 10.80.3.1
• DNS: 10.80.5.10

Subnet mask: The currently configured subnet mask is set to 255.255.255.128, which is incorrect. It should match the subnet mask of the default gateway, which is /24 (or 255.255.255.0).

Default gateway: The default gateway is the IP address of the router interface for the network. It is labeled F0/3 and the table shows that F0/3 has an IP address of 10.80.3.1/24.

DNS: The address of the Domain Name System (DNS) server is 10.80.5.10/24, as identified in the diagram.