CompTIA Network+ Question A-92

Which of the following network infrastructure implementations would be used to support files being transferred between Bluetooth-enabled smartphones?

A. PAN
B. LAN
C. WLAN
D. MAN

Correct Answer: A

Explanation:
PAN stands for Personal Area Network. It is a network of devices in the area of a person typically within a range of 10 meters and commonly using a wireless technology such as Bluetooth or IR (Infra-Red).

CompTIA Network+ Question A-76

A company is experiencing very slow network speeds of 54Mbps. A technician has been hired to perform an assessment on the existing wireless network. The technician has recommended an 802.11n network infrastructure. Which of the following allows 802.11n to reach higher speeds?

A. MU-MIMO
B. LWAPP
C. PoE
D. MIMO

Correct Answer: D

Explanation:
One way 802.11n achieves superior throughput is through the use of a technology called multiple input, multiple output (MIMO). MIMO uses multiple antennas for transmission and reception.

CompTIA Network+ Simulation 6

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 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 A+ Core 2 Question B-22

A company that manages its own cloud, while utilizing a third-party vendor to help manage storage, is implementing which of the following infrastructure types?

A. Hybrid
B. Community
C. Private
D. Public

Correct Answer: A

CompTIA A+ Question H-92

A technician is tasked with installing a printer for use in a department with ten users in a wireless- only environment while directly connected to the network. Which of the following network modes should the technician utilize in the printer setup?

A. Ad hoc
B. Bluetooth
C. Ethernet
D. Infrastructure

Correct Answer: D

CompTIA A+ Question G-81

Recently a company updated their network infrastructure. A user reports that a laptop is experiencing slower network speeds since the update. Which of the following would the technician replace, rather than purchase a new device?

A. Wireless NIC
B. CPU
C. RAM
D. Hard drive

Correct Answer: A

CompTIA A+ Question B-21

A SOHO environment utilizes network hardware address filtering to minimize unauthorized use of its network infrastructure. A technician has been asked to install a shared network printer in the environment. Which of the following MUST the technician know in order to add the printer to the environment?

A. IP address of the printer
B. MAC address of the printer
C. Subnet mask of the network
D. Firmware version of the printer

Correct Answer: B