CompTIA A+ Question H-33

A user wants to secure their home wireless network and allow only certain devices access to the network. Which of the following measures would be the MOST effective means of limiting access?

A. Turn off DHCP
B. Use MAC filtering
C. Disable DMZ
D. Turn off SSID broadcasting

Correct Answer: B

Explanation:
MAC filtering allows only certain devices to access the network. It has no specific policies or rules. The Mac addresses of devices that you want to allow can be configured in mac filtering and only those devices will access the network.

CompTIA A+ Question G-58

An administrator wants to prevent people outside of the building from accessing a new wireless router. Which of the following is the LEAST labor intensive method to use while setting up new workstations?

A. Turn SSID broadcast off
B. Use wireless encryption
C. Institute MAC filtering
D. Setup static IP addresses

Correct Answer: A

Explanation:
http://www.speedguide.net/faq_in_q.php?qid=81

CompTIA A+ Question G-33

A computer technician is installing a new wireless router for a small office. The office already has an internal device that assigns addresses to users. Which of the following functions needs to be disabled on the router to prevent conflicts?

A. DMZ capability
B. MAC filtering capability
C. Network Address Translation
D. DHCP server functionality

Correct Answer: D

Explanation:
DHCP automatically assigns IP address, subnet mask and default gateway to provide access to workstations. Disable DHCP server before installing a wireless router so that you can configure it without DHCP assigning IP addresses to other computers.

CompTIA A+ Question F-70

A user, Emily, reports that her company laptop cannot pick up a wireless connection in certain areas of a building. However, users working on their laptops in the common areas have Internet connectivity. Which of the following is the MOST likely cause?

A. Weak RF signals
B. Out of date Ethernet driver
C. Enabled MAC filtering
D. Duplicate IP addresses

Correct Answer: A

CompTIA A+ Question F-41

A technician needs to configure a wireless small office home office (SOHO) network to provide IP addresses to devices on the network. Which of the following features should be enabled?

A. MAC filtering
B. DHCP
C. SSID broadcast
D. Port forwarding

Correct Answer: B

Explanation:
Configure DHCP to assign IP addresses to devices on the network automatically. DHCP uses a range of IP addresses to provide connectivity and access to various devices that connect to a network.