simulation | Exam Premium

CompTIA Network+ Simulation 8

Drag and drop the fiber cable connection types to the appropriate image.

Correct Answer:

CompTIA Network+ Simulation 7

A customer’s email server is not sending emails. Arrange the troubleshooting steps in the order the technician should perform them:

Select and Place:

Correct Answer:

Wireless network users recently began experiencing speed and performance issues after access point 2 (AP2) was replaced due to faulty hardware. The original network was installed according to a consultant’s specifications and has always worked without a problem.

You a network technician, have been tasked with evaluating the situation and resolving the issues to improve both performance and connectivity. Refer to the following exhibits and perform any necessary changes to the wireless and wired infrastructure by adjusting devices. Note: Adjust the LEAST number of devices needed to fix the issue.

Select and Place:

Correct Answer:

After you fix AP2, you must click on the switch, which will bring up the switch interface. Type in the two commands that they show there, to prove the fix. Do not worry that interface 4 is down, there is no interface 4 for you to do

CompTIA Network+ Simulation 5

Your company recently purchased a new building down the street from the existing office. For each of the tasks below, select the appropriate antenna type and encryption object for all wireless access point (AP).
1. Create an encrypted wireless connection between the two buildings that BEST controls signal propagation, while maximizing security.
2. Restrict the wireless signal generated by the access points (AP’s) inside Building 1, so that it minimizes broadcast beyond the building.
3. Maximize wireless coverage inside Building 1.
4. Building 1’s internal wireless network is for visitors only and must not require any special configuration on the visitor’s device to connect.

Select and Place:

Correct Answer:

CompTIA Network+ Simulation 4

After recent changes to the pictured network, several users are unable to access the servers. Only PC1, PC2, PC3, and PC4 are configurable. You can only change the adapter configurations to each PC.

Correct Answer:

On PC3, change the subnet mask to 255.255.255.0. When it is set to 255.255.255.128, then the PC with a .129 address will not be on the same subnet as the default gateway which is .1
On PC4, change the default gateway to 10.0.2.1. It has been incorrectly set as 10.1.2.1.

On this simulation, you will be asked to test connectivity after fixing the issues. You MUST ping the other three computers on EACH computer (i.e. from PC1, ping PC2, PC3, PC4, and from PC2, ping PC1, PC3 and PC4, etc)

CompTIA Network+ Simulation 3

After recent changes to the pictured network, several users are unable to access the servers. Only PC1, PC2, PC3, and PC4 are clickable and will give you access to the command prompt and the adapter configuration tabs.

Instructions: Verify the settings by using the command prompt, after making any system changes. Next, restore connectivity by making the appropriate changes to the infrastructure. When you have completed these steps, select the Done button to submit.

Correct Answer:

The default gateway must be on the same network as the nodes that use it. Therefore, the subnet on PC3 and the default gateway on PC4 must be modified.

References:
Dulaney, Emmett and Mike Harwood, CompTIA Network+ Authorized Exam Cram, Fourth Edition, Pearson, Indianapolis, 2012, p 101. http://www.subnetonline.com/pages/subnet-calculators/ip-subnet-calculator.php

CompTIA Network+ Simulation 2

Corporate headquarters provided your office a portion of their class B subnet to use at a new office location. Allocate the minimum number of addresses (using CIDR notation) needed to accommodate each department.

Range Give: 172.30.232.0/24
Sales: 57 devices
HR: 23 devices
IT: 12 devices
Finance: 32 devices
Marketing: 9 devices

After accommodating each department, identify the unused portion of the subnet by responding to the question on the graphic. All drop downs must be filled. Instructions: When the simulation is complete, please select the Done button to submit.

All Networks have the range from /0 to/32

Correct Answer:

Explanation:
An IPv4 address consists of 32 bits. The first x number of bits in the address is the network address and the remaining bits are used for the host addresses. The subnet mask defines how many bits form the network address and from that, we can calculate how many bits are used for the host addresses.

The formula to calculate the number of hosts in a subnet is 2n – 2. The “n” in the host’s formula represents the number of bits used for host addressing. If we apply the formula (22 – 2), we can determine that the following subnets should be configured:

Sales network – /26 – This will provide up to 62 usable IP addresses (64-2 for subnet and broadcast IP) HR network – /27 – This will provide for up to 30 usable IP’s (32-2)
IT – /28 – This will provide for up to 14 usable IP’s (16-2)
Finance – /26 – Note that a /27 is 32 IP addresses but 2 of those are reserved for the network and broadcast IP’s and can’t be used for hosts. Marketing – /28
If we add up how many IP blocks are used that is 64+32+16+64+16=192. A /24 contains 256 IP addresses, so 256-192=64.
So the last unused box should be a /26, which equates to 64 addresses

CompTIA Network+ Simulation 1

You have been tasked with testing a CAT5e cable. A summary of the test results can be found on the screen. Step 1: Select the tool that was used to create the cable test results.
Step 2: Interpret the test results and select the option that explains the results. After you are done with your analysis, click the ‘Submit Cable Test Analysis’ button.