- (Topic 1)
Which of the following should the data center hardware technician implement to ensure maximum uptime for customers' virtual machines?
Correct Answer:
C
An uninterruptible power supply (UPS) can help ensure maximum uptime for
customers' virtual machines by providing a backup power source in case of a power outage or other power-related issues. A line conditioner and AC voltage regulator are designed to stabilize the power supply, but do not provide backup power. Cloud storage backup is a way to backup data, but does not directly impact uptime. References: CompTIA A+ Certification Exam: Core 1 - Page 159
- (Topic 4)
A technician is troubleshooting a burning smell on a desktop computer. The technician determines that the odor is coming from inside the device.
Which of the following should the technician do first?
Correct Answer:
A
A burning smell on a desktop computer is a serious issue that indicates a hardware malfunction or failure. It can be caused by overheating, a faulty power supply, a malfunctioning motherboard, or a short circuit12. If left unchecked, it can damage the components, cause a fire, or harm the user.
The first thing the technician should do when troubleshooting a burning smell on a desktop computer is to unplug the computer from the power source. This will stop the flow of electricity and prevent further damage or fire. The technician should also wear protective gloves and eye wear to avoid contact with any hot or hazardous parts.
The other options are less likely to be the first step in troubleshooting, because:
•Locating a fire extinguisher is a good precaution, but it should not be done before unplugging the computer. The fire extinguisher should only be used if there is visible smoke or flames coming from the computer, and only after unplugging it and ensuring that it is safe to do so.
•Calling the fire department is an extreme measure that should only be done if there is an actual fire that cannot be controlled by the fire extinguisher. It should not be done before unplugging the computer and trying to identify and fix the problem.
•Removing the desktop cover is a necessary step to inspect the internal components and find the source of the burning smell. However, it should not be done before unplugging the computer, as it can expose the technician to live wires and electric shocks.
For more information and tips on how to troubleshoot a burning smell on a desktop computer, you can visit these links:
•How to find the source of a burning smell in my computer?
•Burning Smell From PC? 10 Reasons Why It Could Happen
- (Topic 4)
Which of the following server roles does RADIUS perform?
Correct Answer:
B
AAA stands for Authentication, Authorization, and Accounting, and it is a framework that provides security services for network access control. Authentication verifies the identity of a user or device that requests access to a network resource. Authorization determines what level of access or privileges are granted to a user or device based on their identity or role. Accounting tracks and records the usage of network resources by users or devices for billing or auditing purposes. RADIUS (Remote Authentication Dial-In User Service) is a protocol that implements AAA functions by communicating with a central server that stores user credentials and policies.
- (Topic 4)
Which of the following is the best way to protect the data of a virtual machine in the event of hardware failure?
Correct Answer:
C
Cloud-based backup is the best way to protect the data of a virtual machine, as it allows the data to be stored in a remote location that is accessible from anywhere. Cloud-based backup also provides scalability, security, and reliability for data protection3. References: [Cloud Backup]
- (Topic 2)
A technician is replacing a computer with a connected point-of-sale system using a 9-pin serial adapter. The new computer does not have a 9-pin serial port. Which of the following ports can an adapter be installed on in order to connect to the point-of-sale system?
Correct Answer:
C
A USB to 9-pin serial adapter can be used to connect the new computer to the point-of-sale system using a USB port. USB is a common and versatile port type found on most computers.
If a technician is replacing a computer with a connected point-of-sale system using a 9-pin serial adapter and the new computer does not have a 9-pin serial port, an adapter can be installed on the USB port in order to connect to the point-of-sale system. A USB-to-serial adapter can be used to connect a serial device to a USB port on a computer.