- (Topic 2)
An IT manager is requesting that the company buy new cables to be used with F-type connectors that are already in house. Which of the following cables should the company buy?
Correct Answer:
A
The company should buy Coaxial cables to be used with F-type connectors.
- (Topic 4)
An administrator is replacing 15.000rpm hard drives in a server. Which of the following is the interface type the drives most likely use?
Correct Answer:
B
SAS (Serial Attached SCSI) is an interface type that supports high-speed data transfer and high-performance hard drives, such as 15,000rpm drives. SAS drives are commonly used in servers that require fast access and reliability. IDE (Integrated Drive Electronics), eSATA (external SATA), and SATA (Serial ATA) are not suitable for 15,000rpm drives, as they have lower speed and performance.
Reference: [CompTIA A+ Core 1 (220-1101) Certification Study Guide], page 22.
- (Topic 4)
A laptop's external webcam software is running, but neither images nor videos can be viewed. Which of the following should a technician do first?
Correct Answer:
A
The first step that a technician should do is A. Reseat the webcam. Reseating the webcam means unplugging and plugging back the webcam into the laptop’s USB port. This can help to ensure that the webcam is properly connected and recognized by the laptop. Reseating the webcam is a simple and quick troubleshooting technique that can solve many common issues, such as loose or faulty connections, power or bandwidth problems, or driver or software conflicts.
Reseating the webcam is the first step that a technician should do, because it follows the principle of starting with the easiest and most obvious solution before moving on to more complex and time-consuming ones. Reseating the webcam can also help to isolate the problem and eliminate other possible causes.
The other options are not the first steps that a technician should do, because they are more disruptive or less effective. Restarting the computer and running system diagnostics (option B) may be helpful if the problem is caused by a software or hardware error, but it may also cause data loss or interruption of other tasks. Reinstalling the webcam software and drivers (option C) may be necessary if the problem is caused by a corrupted or outdated software or driver, but it may also introduce compatibility or configuration issues. Researching new webcam firmware (option D) may be useful if the problem is caused by a firmware bug or vulnerability, but it may also pose security or stability risks.
For more information about troubleshooting external webcams, you can refer to the following web search results: [How to Fix Webcam Problems on Your Laptop], [How to Troubleshoot Webcam Issues on Windows 10], [How to Fix Common Webcam Problems].
- (Topic 1)
A laptop's external webcam software is running, but it shows no image or video. Which of the following should a technician perform FIRST?
Correct Answer:
C
https://www.lifewire.com/fix-it-when-webcam-is-not-working-4588517
If a laptop's external webcam software is running, but it shows no image or video, the first step the technician should perform is to reseat the webcam. Reseating the webcam involves disconnecting it from the motherboard and then reconnecting it. If this doesn't work, the technician should then check the webcam drivers or software. References: CompTIA A+ Certification All-in-One Exam Guide, Tenth Edition by Mike Meyers (Page 502)
- (Topic 1)
A network administrator was notified that laptop users are unable to access or ping any network resources on the corporate network. Which of the following should the network administrator check FIRST?
Correct Answer:
C
Domain Name System (DNS) is an Internet service that translates domain names (e.g., its.umich.edu) into IP addresses. Dynamic Host Configuration Protocol (DHCP) is a protocol for automatically assigning IP addresses and other configurations to devices when they connect to a network.
