network operation first half quiz
Which of the following connectors provides additional power to the CPU from an ATX power supply using the fewest pins? (Select the correct connector.)
4-pin
Which of the following BEST describes the theoretical capacity of a DDR4 standard system memory module?
512 GB
A clicking noise in your computer has now evolved into a grinding noise. In addition, you are beginning to see frequent error messages while running software, and your computer occasionally freezes.
A failing hard drive
After working without problems for a couple of years, your computer has begun to lock up. You suspect that it is a thermal issue, but you can't find any component that is not functioning correctly. You have not replaced the CPU or installed any new devices. The CPU cooling fan and the power supply fan are working properly. The lock-ups are happening with increasing frequency. Which of the following is the MOST common condition that explains these symptoms?
An accumulation of dust has gradually built up.
You work as the IT administrator for a small corporate network. Sam, an employee in the support department, wants to run a virtual machine on his computer for troubleshooting customer issues, and he needs a very stable computer from which to work. You need to decide whether to install buffered or non-buffered RAM in his computer. Which of the following BEST describes the reason to choose buffered instead of unbuffered memory for this new computer?
Buffered memory reduces the load on the memory controller and allows the system to be more stable.
Which of the following indicates that a system case cover has been removed?
Chassis intrusion detection
You have just purchased a new plug-and-play sound card on your Windows workstation that uses a PCI slot. You've updated the sound card driver and installed the apps that came with the card. You decide to play some songs located on your hard drive using a third-party app that you've installed. However, there is no sound coming out of your headphones or speakers. You've checked the Sound applet and the Sound Properties dialog from Control Panel and the volume settings to make sure the settings are correct. You've also tried playing a few system sound files on your workstation, as well as YouTube videos, and the sound is coming through the headphones and speakers. What should you do next to try and resolve the issue?
Check System Information to make sure the correct codec is installed for your song file format.
A customer complains that a recently purchased monitor no longer displays a picture. You verify that the monitor is powered on and that the video cable is securely fastened to the video port.
Check the brightness and contrast settings using the monitor's controls.
When booting your workstation, you hear a series of audible beeps, and the system locks up. What is the FIRST step you should take when troubleshooting this issue?
Check the motherboard documentation for POST errors.
You've just purchased 10 new notebook computers for your users. You are concerned that users will leave the notebooks on for long periods of time, which could result in display burn-in.
Configure a screen saver on each computer.
You are installing a high-end PCIe x16 video card in a new computer. The video card has connectors for two displays. The card also has dual fans to cool the unit.
Connect a 6- or 8-pin power connector to the video card.
Which of the following DDR memory types can be used by a triple-channel memory system? (Select two.)
DDR3 and DDR4
What are the advantages of DDR4 over DDR3, assuming the same operating frequency? (Select two.)
DDR4 uses less power than DDR3. and DDR4 doubles the data transfer rate of DDR3.
You are building one of your customers a home theater PC (HTPC) to connect to an HDTV and high-definition audio system. The customer is going to be playing mostly Blu-ray movies on the system. Which of the following features should the sound card include? (Select two.)
Dolby Digital, DTS support, or SDDS support and S/PDIF output
Which function does a motherboard's chipset perform?
Facilitates communication between the processor, memory, and peripheral devices.
Which of the following features BEST allows a single processor to run two threads in parallel instead of processing single threads linearly when using Intel chips?
Hyper-threading
A customer would like you to install a high-end video card suitable for gaming. Which of the following should the installation and configuration include? (Select three.)
Install new the video drivers from CD and then install updated drivers from the internet., Configure the PC to use the integrated graphics if available and needed. and Ensure that the video card is compatible with the expansion slot.
You have just received an order for various system components that you placed several weeks ago. One of the components is labeled as SO-DIMM memory.
Laptop computers
Jared has just installed an additional HDD on his Windows computer for storing multimedia files. He inserts a DVD disc to watch a movie with his usual movie player software, but the movie fails to play. In fact, the player indicates that there is no DVD drive available. What is the BEST first step that Jared should take to resolve the issue?
Make sure the movie player is pointing to the correct drive letter for the DVD drive.
You are in the process of configuring a new computer. The motherboard has four memory slots and supports dual-channel memory. You install two memory modules. When you boot the computer, the BIOS recognizes both modules, but the memory is not configured to run in dual-channel mode. What should you do to resolve the issue?
Move the modules to the correct motherboard slots.
You have been having trouble with your laptop crashing. You would like your computer to create a memory dump file when it crashes. Where should you place the paging file?
On the system volume
Which option is the first process that runs once a computer is powered on and the CPU loads the BIOS?
POST
Which of the following features are supported by digital audio in a sound card? (Select two.)
Play digital audio directly from an internal CD player. and Compress audio data to support Dolby Digital or DTS surround sound.
Which of the following accurately describes case fans? (Select two.)
Pull cool air from the front and blow hot air out the back. and Create a pressurized system inside the case.
What is an advantage of RAID 5 over RAID 1?
RAID 5 improves performance over RAID 1. Explanation RAID provides both fault tolerance and improved performance RAID (mirroring) provides only fault tolerance with no performance benefit. Both RAID 5 and RAID 1 can only sustain a loss of one disk in the set. Use multiple disk controllers to provide redundancy for the disk controller.
You have a computer system with an Intel Core i3 processor that operates at 3.7 GHz. You would like to upgrade to a faster processor, but you don't want to replace the motherboard.
Read the motherboard documentation to identify which processors are supported.
Your computer has a single core processor installed. The motherboard supports processors with up to four cores. You want to upgrade your computer to a quad-core system. Which of the following is part of the configuration steps?
Replace the existing processor with one that has four cores.
An employee calls to complain that their computer is behaving erratically. Some days, it functions correctly, and other days, it crashes frequently. Sometimes, the system won't boot at all. You open the system case and notice the following: Two of the mounting screws are missing from the system hard disk drive. The system uses memory modules from several different manufacturers with mismatched capacities. Several capacitors on the motherboard are bulging and have a brown liquid oozing from them. The chassis fan on the front of the case is oriented to blow air into the system.
Replace the motherboard.
Your company has decided to hire a full-time video editor. You have been asked to find a system with the level of display quality needed by someone who will be working with video all day. Which of the following video-related specifications has the greatest impact on display quality?
Resolution and refresh rate
Which interface is primarily used for internal hard drives in modern desktop PC systems?
SATA
Which optical media has the greatest storage capacity?
Single-layer, single-sided Blu-ray Disc
You have just finished replacing the motherboard in your friend Ethan's computer with the same type of motherboard that the computer had originally. You tested the motherboard by powering it on and by verifying that the operating system started and that the applications work. Now Ethan is complaining that his computer no longer recognizes his external hard drive, which he had connected to the previous motherboard. Which of the following is MOST likely causing the external hard drive not to function?
The USB front panel connector was not properly connected.
Which of the following is the biggest advantage of 64-bit processors over 32-bit processors?
The ability to use over 4 GB of memory.
Which of the following BEST describes the purpose of the north bridge chipset?
The chip that controls the PCI bus.
You want to enable the Execute Disable Bit (EDB) setting in your BIOS/UEFI to help reduce your system's exposure to viruses and malicious code. Which of the following are requirements for your system to use EDB?
The operating system must support EDB. and The processor must be EDB-capable.
Lately, your computer has been spontaneously shutting down after only a few minutes of use. What is the likely cause?
The power connector for the fan was not connected to the motherboard. and The heat sink and fan were not installed correctly.
You are an IT technician for your company. One of your employees calls and tells you that every time they turn their computer on, they hear three beeps. Which of the following BEST describes the information you should relay to this employee about the beeping?
Three repeated beeps may mean different things. They need to reference the motherboard documentation.
You are trying to push a memory module into a memory slot, but it is not seating properly. What is the MOST likely issue
You are trying to install the memory module backwards in the memory slot.
After installing a new RAM module, you boot your 64-bit system, but the display remains blank.
You have installed a non-parity RAM on an ECC system.
A user reports that the projector in the conference room has display issues when it is connected to his laptop. After identifying the cause and completely resolving the issue, the projector displays the images perfectly both on his laptop and on the projector. Which of the following troubleshooting strategies should you perform next?
document the solution
After installing a new SSD drive on your Windows 11 system, you determine that the TRIM functionality has not been automatically enabled on the drive by the Windows operating system. You need to manually turn on TRIM from a Command Prompt. The drive's volume has been assigned a drive letter of E:. Which of the following commands MUST you use to enable this feature?
fsutil behavior set DisableDeleteNotify 0
Which of the following should you always do to avoid damage when you prepare to install a CPU? (Select two.)
use ant-static protection and Ensure that the CPU and motherboard socket type match.
