CompTIA A+ Core 2 Question A-3

A technician is configuring wireless for a home office. The customer wants to prevent others from accessing the wireless network. The customer has a small number of devices on the network and does not want to have to remember a complicated password. Which of the following should the technician recommend?

A. Enable MAC filtering
B. Disable SSID broadcast
C. Assign static IP addresses
D. Turn on content filtering

Correct Answer: A

CompTIA A+ Simulation 4

The network administrator has changed the IP address of Computer A from 192. 168. 120 to 10. 10. 1020 and now Jane a user, is unable to connect to file shares on Computer A from Computers using the computer name. Instructions: Using the available tools, resolve the connectivity issues. When you have completed the simulation, please select the done button to submit your answer.

Correct Answer:

Step 1: Enter “ipconfig /release”

Step 2: Enter “ipconfig /renew”

Step 3: Enter “ipconfig /flushdns”

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 K-49

Peter, a user, cannot browse on the intranet to a particular web server by using the servername given to him by the administrator. Peter asks a coworker for the IP address of the same server, and is then able to access the webpage using the IP address. Which of the following is the MOST likely cause of the issue?

A. DNS is not configured correctly.
B. HTTP is not working on the server.
C. HTTP is not working on the client.
D. The network router is down.

Correct Answer: A

Explanation:
Domain Name System or DNS is use to translate a name into IP address. If the DNS server is not configured correctly, it will not be able to provide translation. http://www.howstuffworks.com/dns.htm

CompTIA A+ Question K-38

Peter, a technician, is troubleshooting an issue with a PC suddenly losing network connectivity. He has confirmed that the cable is plugged in and has swapped it with a known working cable. Peter then pings the IP address of 127.0.0.1 and receives no response. Which of the following could be the cause of the issue? (Select TWO).

A. The computer has the wrong DNS server configured.
B. The TCP drivers are corrupted.
C. The cable has been unplugged from the patch panel.
D. The routing table on the router is corrupted.
E. There is RF interference on the cable.
F. The NIC is no longer functioning properly.

Correct Answer: BF