CompTIA A+ Core 2 Question J-45

A small office has two routers, one wired and one wireless. Peter, a laptop user, experiences no issues while at his desk, but when he unplugs his laptop to go to a conference room, Peter is no longer able to access the Internet. Other users do not have this issue. A technician checks the laptop and sees an IP address of 169.254.13.142. Which of the following actions should the technician take FIRST so that Peter can access the Internet?

A. Disable the wired connection.
B. Reinstall DHCP on the server.
C. Refresh the network connection.
D. Power cycle the wireless router.

Correct Answer: C

CompTIA A+ Core 2 Question J-18

When setting up a new wireless router, which of the following actions should the technician take FIRST in order to secure the network? (Select TWO).

A. Disable unused ports
B. Change the SSID
C. Position the antennas to prevent outside access
D. Enable MAC filtering
E. Change the default user name

Correct Answer: BE

Explanation:
The basic tasks to secure a network is to change SSID and the default user name. This is the basic security a user can employ to secure the network immediately.

CompTIA A+ Core 2 Question G-66

A technician installs a new SOHO wireless router to replace a failed router and users report connectivity issues and IP errors. Which of the following is the MOST likely cause?

A. Their server has gone down
B. There are too many static IP addresses on the network
C. The new routers firewall is malfunctioning
D. Users need to refresh their IP configuration

Correct Answer: D

CompTIA A+ Core 2 Question F-83

A technician is tasked with improving the security of a SOHO network. The office is comprised of a single wireless router located under the front desk where the office manager sits. All desktop computers are wired into the router which is configured with strong device credentials. Additionally, wireless is disabled on the router. Which of the following should the technician perform NEXT to improve the security of the SOHO network?

A. Disable the routers remote management feature.
B. Enable WPA2 wireless encryption.
C. Change the routers default admin name and password.
D. Place the router in a locked room.

CompTIA A+ Core 2 Question E-22

A residential customer just purchased a new wireless router. During the setup, which of the following should be done to increase the default security of the router?

A. Change the default SSID
B. Change the default password
C. Turn off DHCP services
D. Change the default wireless channel

Correct Answer: B

CompTIA A+ Core 2 Question D-37

A user calls the help desk to report about their smartphone not being able to make any phone calls. The user admits that the smartphone can still send/receive email, browse all websites, and utilize all Internet-capable applications. Which of the following issues is MOST likely affecting the smartphone?

A. Wi-Fi is turned off; the cellular antenna is turned on.
B. The cellular antenna is turned off; Wi-Fi is still on.
C. The user forgot to turn off Bluetooth before trying to make a call.
D. The user has 4G capability turned off, and is only on 2G.

Correct Answer: B

Explanation:
Cellular antenna catches and transmits cellular signals and data. Wi-fi is another technology that is used to access internet using a wireless router. So if the cellular antenna is turned off, you can still use Wi-Fi to browse internet and use host of applications.

CompTIA A+ Core 2 Question D-14

A user has installed a new wireless router and is unable to connect their game console to the manufacturers service. Which of the following should the technician look for FIRST?

A. Ensure the game system has a static IP address.
B. Contact the manufacturer to see if service is available.
C. Ensure the game system has updated firmware.
D. Ensure the correct ports are open.

Correct Answer: D

Explanation:
When you connect a game console to the wireless router, you need to see which ports the console uses to connect to Internet. Open those ports and then connect again. This process solves 80% of game console connectivity problems.

CompTIA A+ Core 2 Question B-62

A user states that their wireless connection drops when the phone rings. Which of the following solutions BEST shows what the technician should do to prevent this from happening?

A. Move the access point closer to the user
B. Remove the phone
C. Change the frequency that the wireless router is using
D. Change the wireless security encryption settings

Correct Answer: C