- (Topic 3)
Which of the following network devices operates as a bridge function?
Correct Answer:
D
A media converter is a network device that operates as a bridge function, which means it connects two different types of network media, such as copper and fiber optic cables, and converts signals between them. This allows network devices that use different media types to communicate with each other over long distances or in different environments, without requiring major changes or upgrades to the existing network infrastructure. Reference: https://www.comptia.org/training/books/a-core-1-220-1101-study- guide (page 73)
- (Topic 4)
A company laptop uses a docking station with an integrated NIC and is unable to access a wired SOHO network using DHCP. A technician runs ipconfig anddiscovers the laptop has an IPv4 assignment of 169.254.0.9. The NIC does not have any link or activity lights on. Which of the following should the technician do next?
Correct Answer:
E
The most likely answer is E. Reseat the laptop in the docking station.
The IPv4 address of 169.254.0.9 indicates that the laptop is using an Automatic Private IP Address (APIPA), which means that it could not obtain a valid IP address from the DHCP
server on the network1. This could be caused by a physical or logical problem with the network adapter, the cable, the docking station, or the network itself2.
One of the possible solutions is to reseat the laptop in the docking station, which means to remove it and insert it again, making sure that it is properly aligned and connected. This can help fix any loose or faulty connections between the laptop and the docking station, and between the docking station and the network cable3. Reseating the laptop can also trigger a new DHCP request and renew the IP address4.
Other possible solutions include resetting the network adapter, replacing the network cable, rebooting the DHCP server, or restarting the laptop in safe mode. However, these are less likely to be effective than reseating the laptop, as they involve more steps and may not address the root cause of the problem234. Replacing the laptop is an extreme and unnecessary measure, as there is no evidence that the laptop itself is faulty.
- (Topic 4)
A customer purchased an active touch pen for a tablet PC. After the customer used the pen for a few days, it stopped working. Which of the following is most likely causing the issue?
Correct Answer:
C
The most likely answer is C. The pen batteries need recharging.
An active touch pen is a stylus that uses a battery to power features such as pressure sensitivity, buttons, or Bluetooth connectivity. If the pen batteries are low or depleted, the pen may stop working or become inaccurate1. To fix this issue, you should recharge the pen batteries using the provided charger or cable, or replace them with new ones if they are not rechargeable1.
The other options are less likely to cause the issue. A scratched tablet screen may affect the touch sensitivity, but it should not affect the pen functionality. The pen software may need updating to improve performance or compatibility, but it should not stop the pen from working altogether. Software updates may disable the pen if they change the settings or drivers, but this can be fixed by re-enabling the pen or reinstalling the drivers2. References:
1: Troubleshoot your Surface Pen - Microsoft Support
2: Windows 10 touch screen: active pen works, finger does not - Super User
- (Topic 4)
A user submitted a help desk ticket to report that the Wi-Fi connection drops every time the microwave is used. A technician suspects the issue is related to interference. Which of the following should the technician do to provide the BEST long-term solution for the issue?
Correct Answer:
B
The issue is related to interference from the microwave, which operates at 2.4GHz, the same frequency as some Wi-Fi channels. To avoid this interference, the technician should configure the Wi-Fi access point (AP) to use a 5GHz band, which has more channels and less interference from other devices. Changing the Wi-Fi operation channel may not solve the problem if the microwave interferes with multiple channels. Increasing the power output of the AP may not overcome the interference and may cause more interference to other devices. Changing the SSID to hidden does not affect the interference at all, and may make it harder for users to connect to the network. References: https://www.comptia.org/blog/what-is-wifi-6-and-why-is-it-important
- (Topic 1)
A technician is setting up a device to use two-factor authentication. Which of the following meets this requirement?
Correct Answer:
C
Two-factor authentication (2FA) is a security process that requires users to provide two different authentication factors to verify their identity. This means that in addition to providing something they know (such as a password or PIN), they must also provide something they have (such as a smart card or token) or something they are (such as a fingerprint or retinal scan).
In this case, the correct answer would be C. Password/thumbprint. This option meets the requirement for two-factor authentication because it combines two different types of authentication factors: something the user knows (the password) and something the user is
(the thumbprint). The other options do not meet the requirement for 2FA because they either use only one type of authentication factor (A and D) or use two instances of the same type of factor (B).
