Compia A+ core 1 first 53 questions

A technician is tasked with installing additional RAM in a desktop computer. Which of the following types of RAM is MOST likely to be used?

• SODIMM

• DDR3

• ECC

• VRAM

Answer explanation

It is most likely that the technician would use DDR3 RAM (Option B). DDR3 (Double Data Rate 3) is the third generation of DDR memory and has become the standard type of RAM used in desktop computers. SODIMM (Option A) is commonly used in laptops and other compact devices, ECC (Option C) is used in servers and high-end workstations to ensure data integrity, and VRAM (Option D) is used in graphics cards for video memory. So, for a typical desktop computer, DDR3 would be the most likely option for adding additional RAM.

Vertical streaks are appearing on the output of a laser printer. Which of the following items is the MOST likely cause?

• Drum

• Roller

• Transfer belt

• Ribbon

Answer explanation

"If your print out has one or more sharp black vertical stripes running down some or all of the page, your laser printer's drum is failing or damaged. The drum picks up toner from the cartridge in areas where it gets charged by the printer's laser. It then deposits the toner on the paper. Toner can stick to a damaged drum even if it isn't supposed to and get transferred as a crisp black vertical stripe. Whether your drum is part of your cartridge or a separate device that's sometimes called an "imaging unit," replacing it should fix the problem."

A user is trying to play a DVD on a projector. The user can hear the audio; however, the projector is showing an error message that states:HDMI Blocked due to Copy ProtectionWhich of the following is the MOST likely cause of the error?

• . The HDMI cannot carry the signal from the DVD to the projector.

• The user needs to switch from HDMI to a cable standard such as DisplayPort

• The projector does not support the necessary HDCP protocol. Most Voted

• The user needs to enable cony-protected sources in the projector's settings.

Answer explanation

If you encounter an error that indicates unauthorized content or an HDCP error: • DVI, HDMI, DisplayPort, and Thunderbolt all provide support for the Digital Rights Management (DRM) mechanism High-bandwidth Digital Content Protection (HDCP). HDCP allows a content source (such as a Blu-ray disc) to disable itself if the display adapter and monitor and/or speaker system do not support HDCP and fail to authenticate themselves with the playback source. There have been various iterations of HDCP (at time of writing the current version is 2.2) and backward-compatibility can be problematic as authentication may fail between devices that support different versions of the standard. Displaying devices must support HDCP to stream videos. It either supports it or not. You can't enable it. Therefore it must be C.

While implementing a non-carrier-grade wireless backhaul, a technician notices the current channel selection is extremely polluted with various RF signals. Upon performing a spectral analysis, the technician discovers a channel containing almost no RF pollution.

Unfortunately, the technician is unable to select that channel.

Which of the following is the MOST likely reason for this issue?

• The channel is reserved for licensed band use.

• The channel selection is defective; contact the manufacturer.

• The channel must be unlocked by the vendor.

• The device requires a firmware update to unlock the channel.

A user submitted a support ticket that states all of the printouts from a laser printer appear to have double images imposed on them. A review of past printer support tickets shows that a maintenance kit has not been installed in more than a year. Which of the following printer consumables is MOST likely causing the issue?

• Separation pad

• Transfer roller

• ink cartridge

• Fuser

???

C. 72% Multithreading must be enabled to have enough processing power to create and run virtual machines

B. 28% TPM is a hardware component that provides enhanced security features, including the ability to support virtualization.

A technician is configuring a workstation to be used as a VM host. After installing the necessary software, the technician is unable to create any VMs.

Which of the following actions should be performed?

• Disable the Bios password

• Enable TPM (Trusted Platform module)

• Enable multithreading

• Enable fast startup

Answer explanation

TPM is not a requirement to start VMs. People are assuming information that is not in the question and this is usually the cause of second guessing these kinds of exams for most test takers. The question states nothing about Windows 11. In order to have a VM running on a system, the system needs to have hyperthreading and/or multicore processing. I work with VMs on a regular basis. TPM is used for encryption purposes of a drive and is required for Windows 11 installations, but again, where in the question does it state Windows 11 and not something like Ubuntu, or any other OS for that matter?

A user's computer is not receiving a network connection. The technician confirms that the connection seems to be down and looks for the user's port on the patch panel. The port and patch panel are not labeled. Which of the following network tools should the technician use to identify the port?

• Network tap

• Punchdown tool

• Toner probe

• Crimper

A user, who is attempting to give a presentation via a projector in a conference room, reports that the projector has video but no audio. Which of the following willMOST likely resolve the issue?

• Changing the input on the projector to VGA

• Changing the output on the PC to DVI

• Modifying the projector's refresh rate

• Utilizing an HDMI connection

Answer explanation

Utilizing an HDMI connection is the most likely solution to resolve the issue of the projector having video but no audio when a user is attempting to give a presentation via a projector in a conference room. HDMI (High-Definition Multimedia Interface) supports both video and audio signals in a single cable, making it a common interface used to connect devices such as PCs to projectors. Changing the input on the projector to VGA, changing the output on the PC to DVI, or modifying the projector's refresh rate are not relevant solutions for this scenario, as they do not address the issue of the projector having video but no audio.

A customer reports that a computer is never able to reach more than a 100Mbps transfer data rate, even when using a Gigabit LAN card. While troubleshooting, the technician notices the network cable needs to be replaced. Which of the following cable categories is limiting the transfer speed?

• Cat 5

• Cat 5e

• Cat 6

• cat 6a

Answer explanation

Cat5 can oly transfer up to 100 mbps. To have a full gigabit connection with ethernet, you need Cat5e, or later.

While using a popular videoconferencing program, the user selects a webcam, but the software is unable to open the webcam. The webcam was working the previous day. Which of the following should be done to address this issue?

• Close other video software and retry.

• Adjust the conference software to a compatible resolution.

• . Switch the video from the webcam to ג€conferenceג€ mode.

• . Reseat or replace the webcam.