CompTIA A+ Core 1 (2022 series)624 questions across 63 pages are complete and free, with no account or card.
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Which of the following does a DHCP reservation MOST likely apply to?
Answer: D
This ensures that the client will always get the same IP address from the DHCP server when it connects to the network. DHCP reservations are usually used with servers or printers on your internal network and are rarely used with end-user or client devices.
Source: Adapted from community discussion — Raffaelloo
A technician is working to connect an RS-232 serial signature pad to a customer's ultralightweight laptop. Which of the following should the technician use to install the device?
Answer: A
RS-232 serial ports give analog signal, whereas USB ports are digital, so they are not compatible to each other. You'd need some kind of a converter to connect an RS-232 based connector to a USB-C adapter. The USB-C adapter can be a port replicator in this case so that you can then connect it to the ultra lightweight laptop. Hence, a port replicator is more suitable in such cases.
Source: Adapted from community discussion — [Removed]
Which of the following wireless networking protocols will support both 2.4GHz and 5GHz devices?
Answer: B
Ax can use both the 2.4 GHz and the 5 GHz bands, while 802.11ac can only use the 5 GHz band. This means that ax can offer more flexibility and compatibility with older devices that only support the 2.4 GHz band
Source: Adapted from community discussion — Raffaelloo
A customer reports that access to the network fileshare has become much slower than usual, but local applications do not seem to have trouble. The technician checks the bandwidth to other servers and finds no issues. Which of the following should the technician check NEXT?
Answer: A
A. Level of network utilization Explanation: 1.The customer is experiencing slowness specifically with the network fileshare, while local applications are functioning normally. This suggests the issue is network-related rather than a problem with the local machine. 2.The technician has already checked bandwidth to other servers and found no issues, which eliminates general network connectivity problems. 3.Given these factors, checking the level of network utilization is the most logical next step. High network utilization could explain the slowdown in fileshare access without affecting local applications or bandwidth to other servers. The other options are less relevant or appropriate at this stage: D. RAID array drive health, while important, is less likely to be the immediate cause given that the issue is specific to network fileshare access.
Source: Adapted from community discussion — dvdlau
A virtual file server in the cloud is configured to automatically add compute resources during times of high load on the server. Which of the following describes this cloud feature?
Answer: C
The correct answer is: C. Rapid elasticity Rapid elasticity is a cloud computing feature that allows resources, such as computing power and storage, to automatically scale up or down based on demand. In this scenario, the virtual file server in the cloud is configured to add compute resources automatically during times of high load, which exemplifies the rapid elasticity feature. This ensures that the server can handle increased demand without manual intervention, and resources are dynamically allocated as needed.
Source: Adapted from community discussion — Andylove
A technician is on site troubleshooting a customer's laptop. The technician needs to download a software update, but the company’s proxy is blocking updates. Which of the following would be the MOST appropriate action for the technician to take to get the update?
Answer: B
An integrated webcam on a user's laptop broke, so a technician installed a temporary, external webcam. Since the external webcam installation, other users can only see part of the user's face during videoconferences. Which of the following BEST describes the reason for this issue?
Answer: A
A. The webcam is not on a level surface. If other users can only see part of the user's face during videoconferences after the installation of the external webcam, it suggests a physical misalignment issue. Placing the webcam on an uneven or not level surface can result in an incomplete view. Adjusting the webcam to be on a level surface should resolve the problem.
Source: Adapted from community discussion — [Removed]
A network engineer recently deployed a new application server in a cloud environment. Which of the following should be implemented to prevent a single point of failure within the system?
Answer: C
High availability (HA) is a system design approach that ensures that critical applications are always available to users. HA systems typically use redundant hardware and software components to minimize the impact of failures.
Source: Adapted from community discussion — rah555
A new HD webcam's image only updates one or two times per second. The specifications indicate the webcam is capable of updating 30 frames per second. Which of the following is MOST likely causing the issue?
Answer: A
The most likely cause of the issue is A. The USB 2.0 port has insufficient bandwidth. USB 2.0 has a limited bandwidth, which may not be sufficient to handle the high data rate required for high-resolution video capture. The webcam's ability to capture 30 frames per second requires significant bandwidth to transfer the image data to the computer. GG
Source: Adapted from community discussion — Nate_A
A user needs to transfer files from an Apple phone to a workstation. Which of the following connection types should the user utilize?
Answer: C
A Lightning connection is used to transfer files from an Apple iPhone or iPad to a workstation. Lightning is Apple's proprietary connector used in their mobile devices for charging, data transfer, and other purposes. By using a Lightning to USB cable, the user can connect their Apple phone to the workstation's USB port and transfer files between the two devices.
Source: Adapted from community discussion — Andylove
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