Chapter 3 Hardware 3.1-3.7
You need to connect the satellite television signal to your HD 4K flat screen TV using a coaxial cable. Which of the following is the BEST type of coaxial cable to use?
RG-6
You work at a computer repair store. You are in the process of connecting several devices to a computer, which will then allow you to test each device. In this lab, your task is to: Connect the USB hub to the computer. Connect the inkjet printer to a USB port. Connect the laser printer to a USB port. Connect the scanner to a USB port. Connect the external hard drive to a USB port.
3.2.4 Install USB Devices LAB
You work at a computer repair store. You are in the process of building a new computer system. The customer wants a motherboard with the following features: 16x PCI Express slot for video card support M.2 storage support Support for 64-bit processors Dual-channel memory support Support for up to 64 GB of memory In this lab, your task is to: Select and install the motherboard that meets the scenario requirements. Connect the following computer case cables:Power switchPower LED 3-1 pinHDD LEDSpeakerFan frontFan rearUSB (Black cable- 2.0)Front panel audioUSB 3.0 Connect the following connectors from the power supply:CPU powerMain motherboard power
3.3.7 Choose and Install a Motherboard
You work at a computer repair store. You are building a computer using spare parts. You need to install the correct memory module for the computer. In this lab, your task is to: Examine the motherboard memory slots and the memory modules available on the Shelf to find the correct memory.If necessary, zoom in on the motherboard to get a better look at the memory slots. Install a single memory module in the motherboard.
3.6.3 Select Memory by Sight
You work at a computer repair store. You are building a new computer for a customer. You have installed four 2-GB memory modules for a total of 8 GB of memory (8,192 MB). However, when you boot the computer, the screen is blank and the computer beeps several times. You need to diagnose and correct the problem. In this lab, your task is to: Identify which memory modules are working by testing one memory module at a time. Install all the working memory modules. Start the computer to verify that all installed memory is detected in the BIOS.
3.7.4 Troubleshoot Memory 1
You want to build a new system that supports 16 GB of memory. Which of the following is the MOST important consideration when building the computer?
64-bit processor
You are installing a new SATA hard drive in your Windows workstation. Which of the following connectors should you use to connect your hard drive to the motherboard?
7-pin connector
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. What is the MOST likely cause of these issues?
A failing hard drive
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.
Maintains an accurate system time and date, even when the power is off.
CMOS BAttery
A fiber optic cable consists of four basic components. Using the illustration below, match each illustration label on the left with the correct component name on the right.
Central Core Protective Layer Cladding Plastic Sheath
Consider the memory modules shown in the image. Label each that best identifies the associated memory module form.
DDR DIMM DDR3 DIMM DDR4 DIMM DDR2 DIMM 200-pin SO-DIMM 144-pin SO-DIMM UniDIMM
What are the advantages of DDR4 over DDR3, assuming the same operating frequency?
DDR4 uses less power than DDR3. DDR4 doubles the data transfer rate of DDR3.
Which of the following memory ratings identifies the fastest memory?
DDR4-1600
When you turn on your workstation, you immediately hear a grinding noise coming from inside the computer case. Which of the following are the MOST likely causes of this noise?
Dust buildup that needs to be cleaned. An uneven case surface that causes fan blade
You are attempting to boot a new system. The boot fails, and the system sounds a beep code. Which of the following describes the MOST likely cause of this error?
Either no memory is installed or the memory was not detected.
Allows additional features and capabilities to be added to the motherboard.
Expansion Slots
Contains firmware that is used to configure motherboard settings and initialize devices
Flash memory
Consider the external ports for a typical PC system (Image). Identify each port.
HDMI Thunderbolt IEEE 1394 USB VGA DVI RJ45 RJ11 Fiber S/PDIF Audio Jack
The CEO of your small company has asked you to connect a laptop computer to the small conference room LED TV. The CEO will be showing a promotional video that demonstrates the new company strategy through images and sound. Which of the following cable types would work BEST for connecting the laptop to the display?
HDMI
You have installed a new computer with a quad-core 64-bit processor, 6 GB of memory, and a PCIe video card with 512 MB of memory. After installing the operating system, you see less than 4 GB of memory showing as available in Windows. Which of the following actions would MOST likely correct this issue?
Install a 64-bit version of the operating system.
A customer needs to use several applications. Currently, the computer cannot keep all the necessary applications open at the same time. Which of the following components should you consider upgrading?
Memory
Which of the following is the most common method for removing RAM from a motherboard?
Move the tabs holding the RAM out of the way; then pull straight up to remove the RAM.
You decided to upgrade your PC with a faster processor. To do this, you ordered a new motherboard over the internet that supports the processor that you want to use. When the motherboard arrives, you discover that the motherboard uses the Micro-ATX form factor. Your current case is an ATX mid-tower with a standard ATX motherboard inside. Which steps must you take for the Micro-ATX motherboard to work in the ATX case?
No additional steps are necessary. You can install the Micro-ATX motherboard in the ATX case.
Stores custom configuration settings made by the user.
Non-volatile BIOS memory
Controls communication between the CPU, memory, and high-speed graphics bus.
North bridge
The following are critical times when memory problems manifest themselves?
On the first boot of a new computer and After you remove or install hardware
A technician is running a network above a dropped ceiling that is also used for ventilation. The cable must be twisted pair and must be capable of Gigabit Ethernet speeds. Which of the following cables should the technician use?
Plenum-rated Cat 6a
A technician is installing a cable modem that supplies internet connectivity for a home office. Which of the following cabling types would they use to connect the cable modem to the wall outlet
RG-6
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. What should you do?
Replace the motherboard.
When playing videos games or watching movies on your workstation, the screen sometimes freezes and displays strange colors. You suspect that your video card is causing the issues. What is the BEST solution to resolve your display issues?
Replace the video card.
Consider the following diagram of a typical motherboard.
See 3.3.4 Motherboard Facts
Houses the PCI bus controllers and communicates with the super I/O controller
South bridge
Susan works in the research and development department. She recently purchased a large high-speed external drive and has attached the drive to her computer using a USB cable. Her drive requires a minimum data transfer speed of 5 Gbps and needs to have access to 600 mA/15 volts of USB power to function properly. Although the correct drivers are installed, when she plugs her drive into her workstation, the drive is not working. To troubleshoot the problem, she has connected her drive to her coworker's computer, where the drive functions properly. No additional cables are required for this drive. Which of the following is the MOST likely reason that Susan's external hard drive is not working?
Susan has connected her drive to a USB 2.0 port, which does not have the required data transfer speed.
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 situations is MOST likely to justify an investment in a Cat 6a cable instead of a Cat 6 cable?
The work area has a lot of electromagnetic interference (EMI).
Single-sided memory uses half the number of memory modules as double-sided memory of the same capacity.
True
Match each USB connector type on the left with the image label on the right. (Not all USB connector types will be used.)
USB 2.0 Type-B Micro USB miniUSB USB 3.0 Micro-B
You work as the IT administrator for a small corporate network. One of the company employees needs to add an additional PCI card to the motherboard. When you open the computer, you see that the card that you purchased does not fit due to the card's height. Which of the following is the BEST method for using the newly purchased card?
Use a riser card to allow the new card to be installed parallel to the motherboard.
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.