CompTIA Network+ Question C-55

A wireless network technician for a local retail store is installing encrypted access points within the store for real-time inventory verification, as well as remote price checking capabilities, while employees are away from the registers. The store is in a fully occupied strip mall that has multiple neighbors allowing guest access to the wireless networks. There are a finite known number of approved handheld devices needing to access the store’s wireless network. Which of the following is the BEST security method to implement on the access points?

A. Port forwarding
B. MAC filtering
C. TLS/TTLS
D. IP ACL

Correct Answer: B

Explanation:
MAC filtering allows traffic to be permitted or denied based on a device’s MAC address. We make a MAC filtering which contains the MAC addresses of all approved devices that need to access the wireless network. This ensures that only approved devices are given access to the network.

CompTIA A+ Core 2 Question J-77

A user is trying to access an application on their home machine from work. The user sets up port forwarding on their router but is still unable to connect to the application. Which of the following should be the users NEXT step in resolving this issue?

A. Configure Wake-on-LAN for the NIC on the Work PC.
B. Configure a firewall exception on the Home PC.
C. Switch the Work PC network from “Work” to “Home”.
D. Disable the Windows firewall on the Home PC.

CompTIA A+ Question K-84

An ISP has provided a DSL Internet connection with a static IP address. A technician is setting up a small office home office (SOHO) wireless router and needs to provide Internet access to five PCs on the network. Which of the following should be enabled?

A. NAT
B. WPS
C. MAC filtering
D. Port forwarding

Correct Answer: A

Explanation:
http://www.howstuffworks.com/nat.htm

CompTIA A+ Question I-44

A technician is installing a network-enabled security system that features IP-based cameras. To access the system remotely, which of the following capabilities is MOST likely to require configuration?

A. VPN passthrough
B. QoS
C. Static IPs
D. Port forwarding

Correct Answer: D

CompTIA A+ Question H-84

After installing a new wireless router in a home office, a user’s remote clients have lost the ability to access the FTP server on the user’s home office LAN. Which of the following features in the router MUST be configured before the clients can regain secure access?

A. QoS
B. Port triggering
C. Port forwarding
D. MAC filtering

Correct Answer: C