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CYB104

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Computer Science

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Feb 20, 2024

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1. Which computer component contains all the circuitry necessary for other components or devices to communicate with one another? Answer: A. Motherboard 2. You are told by a technician over the phone that you need to bring replacement DDR4 SDRAM memory. What type of packaging is used for DDR4 SDRAM memory? Answer: B. 240-pin DIMM 3. You need to replace memory in a desktop PC and go to purchase RAM. When you are at the store, you need to find the appropriate type of memory. What memory chips would you find on a stick of PC3-16000? Answer: C. DDR3-1600 4. A client wants you to build a new PC for her, with a smaller case and lower power requirements. When selecting a motherboard, which form factor should you choose for a smaller size and lower power consumption? Answer: D. ITX 5. A motherboard failed on a desktop PC with an Intel Core i5-10600K processor. When you are looking for a replacement motherboard, which CPU socket does it need to have? Answer: C. LGA 1200 6. You have just replaced a processor in a computer and now need to add a cooling mechanism. What should you use to attach the cooling system to the processor? Answer: B. Thermal paste 7. A technician asks you how to get a computer’s processor to run faster than it currently does. What are they trying to achieve? Answer: B. Overclocking 8. You are assembling a new computer and are looking at new cooling systems. Which of the following cooling systems requires the use of a pump? Answer: A. Liquid 9. Which of the following types of processors will likely generally be preferred for mobile devices? Answer: C. ARM 10. You press the front power button on a computer and the system boots. Later, you press it briefly and the system hibernates. When you press it again, the system resumes. You press and hold the button and the system shuts down. What is this feature called? Answer: B. Soft power 11. You are training new technicians to install RAM and pointing out differences between packages. Which of the following are the numbers of pins that can be found on DIMM modules used in desktop motherboards? (Choose two.) Answers: B. 184 and F. 240 12. You are installing a new computer, and the user wants to use virtualization. Which hardware components need to support virtual technology for this to work properly? (Choose two.) Answers: B. Motherboard and C. CPU 13. You find out that a disgruntled ex-employee’s computer has a boot password that must be entered before the operating system is ever loaded. There is also a password preventing your access to the BIOS utility. Which of the following motherboard components can most likely be used to return the computer to a state that will allow you to boot the system without knowing the password? Answer: D. Jumper 14. Your Core i5 fan has a 4-pin connector, but your motherboard only has a single 3-pin header with the CPU_FAN label. Which of the following will be the easiest solution to get the necessary cooling for your CPU? Answer: B. Buy a 4-pin to 3-pin adapter. 15. You are installing a new video card into a PCIe slot. What is the combined total throughput of a PCIe 2.0 x16 slot? Answer: D. 32 GBps 16. Which of the following allows you to perform the most complete restart of the computer without removing power? Answer: A. Start ➢ Restart

17. You have just found out that a new UEFI upgrade exists for your computer, and you obtain a copy on a flash drive to install it. Which of the following is most helpful when flashing the UEFI on a desktop computer system? Answer: B. Uninterruptible power supply 18. The 32 GB of DDR4 memory has failed in a client’s desktop computer. The client requests that you upgrade the system for better performance when replacing the RAM. Which of the following is the best option? Answer: B. Install two new 128 GB DDR4 RAM modules. 19. You are replacing an HP laptop’s motherboard. Which type of motherboard should you use? Answer: C. One for the specific model 20. You need to install a new video card into a desktop computer. What type of expansion slot is preferred today for high-performance graphics adapters? Answer: B. PCIe Here are the answers to the review questions: 1. You are installing a new graphics adapter in a Windows 10 system. Which of the following expansion slots is designed for high-speed, 3D graphics adapters? Answer: D. PCIe 2. You need to install a new hard drive into a desktop computer. Which of the following is not one of the three major components of a hard disk drive system? Answer: D. Host adapter 3. You install a new NIC for a user, and he asks what it does. Which of the following best characterizes the functions of this device? Answer: B. Communications 4. A client wants to ensure that their server does not lose power if their power supply fails. Which of the following best describes the type of power supply needed in this situation? Answer: D. A redundant power supply 5. A client is looking for a desktop storage technology that provides the fastest possible data transfers. Which technology should you recommend? Answer: B. NVMe 6. You are choosing an optical drive format for a client. Which optical disc format supports a data capacity of 25 GB? Answer: B. Single-sided, single-layer Blu-ray Disc 7. Which of the following best describes the concept of hot-swappable devices? Answer: A. Power does not need to be turned off before the device is inserted or removed. 8. Of the following voltage pairings, which one accurately represents the input and output, respectively, of power supplies and AC adapters? Answer: C. AC in, DC out 9. What are the output voltages that have been commonly produced by PC power supplies over the years? (Choose five.) Answers: A. +3.3VDC, C. +5VDC, E. +12VDC, F. - 12VDC, B. -5VDC 10. You are installing a new power supply in a desktop computer. Which of the following statements about power supplies is true? Answer: D. Power supplies convert AC input to DC output. 11. You have been asked to install a new hard drive for a client. Which of the following is not a consideration when installing an internal storage device? Answer: C. Due to the high revolutions at which modern hard drives spin, you must secure an external power source because the internal power supplies do not have the capacity.

12. A client just bought a new digital camera for his photography business. Which of the following is specifically designed as an internal storage device for cameras? Answer: A. Memory cards 13. When installing multiple add-on cards of the same type, which type of cards might you need to bridge together to function as a single unit? Answer: D. eSATA 14. You are purchasing a new video card for a desktop computer. For the best performance, which type of video card should you purchase? Answer: E. PCIe x16 15. Which of the following is not a consideration when upgrading power supplies? Answer: D. You might find that you do not have enough of the appropriate connectors coming from the power supply for the devices that you have installed. 16. You are choosing a flash standard for a client. They want the smallest flash cards possible. Which standard should you recommend? Answer: C. microSD 17. Your goal is to build the fastest computer possible. Which of the following hard drive technologies should you choose for the fastest read performance? Answer: C. NVMe PCIe 18. You have been asked to configure a RAID 5 system for a client. Which of the following statements about RAID 5 is true? Answer: D. It requires at least three drives to implement. 19. You have a motherboard with integrated video, and the video fails. You install a video add-on card. Which of the following statements are the most accurate? (Choose two.) Answers: D. For the card to work properly, you might need to disable the integrated video in the BIOS, E. The add-on card will work properly by using the integrated card’s video driver. 20. When replacing a power supply, which of the following tends to vary among power supplies and must be chosen properly to support all connected devices? Answer: A. Wattage ChatGPT Here are the answers to the review questions: 1. Which of the following could be used with an analog monitor? (Choose two.) Answers: B. DVI-A and E. VGA 2. You are attaching an external hard drive to a computer with USB 2.0 ports. The user is concerned about data transfer speed. What is the maximum speed of USB 2.0? Answer: A. 480 Mbps 3. You got a new desktop computer for a designer at your company. On the front panel is a rectangular yellow USB port. What does that mean? Answer: B. It’s USB 3.0. 4. You are installing a replacement monitor on a desktop computer. Which of the following is true regarding a monitor’s refresh rate? Answer: A. As long as the graphics adapter can refresh the image at a particular rate, the attached monitor can accommodate that refresh rate. 5. Which of the following connector types is typically not associated with hard drive use? Answer: A. USB-C

6. The company photographer is interested in buying a new digital camera. He wants to be able to plug it directly into his laptop to transfer pictures for editing. What type of connector will most likely be on his camera? Answer: A. Mini-USB 7. You are installing a new video card that has an HDMI port. Which of the following is true about HDMI cables? (Choose all that apply.) Answers: B. They can transmit audio as well as video and D. They can use HDMI or mini-HDMI connectors. 8. Which of the following display interfaces is equivalent to DisplayPort with PCIe added in? Answer: A. Thunderbolt 9. Which two of the following standards use the same connector? (Choose two.) Answers: B. Thunderbolt 3 and D. USB 2.0 10. How do you connect a DVI-A interface on a peripheral to a DVI-D interface on the computer? Answer: C. You wouldn’t interconnect those two interfaces. 11. A technician says he needs to provide power to an older IDE hard drive and a DVD- ROM in a desktop. The computer now has a new fully modular power supply, and the technician wants to know what type of power connectors he should use. What do you tell him? Answer: D. Molex 12. Which of the following connectors is oval shaped? Answer: C. Thunderbolt 2 13. Which of the following connector types are capable of conducting power and transmitting data? (Choose all that apply.) Answers: A. Lightning, C. USB-C, and E. Micro-USB 14. Which of the following statements is true about eSATA cables and connectors? Answer: D. eSATA maximum throughput is 6 Gbps. 15. Which of the following is not an example of a connector for a standard peripheral input device? Answer: D. USB 16. You are asked to hook up a projector in a classroom. What type of cable are you most likely to need? Answer: C. HDMI 17. A user with an iPhone 12 needs to charge her device and asks you to bring a cable. Which of the following connector types should you ensure that the cable has? Answer: B. Lightning 18. Which of the following types of cables will transfer data at the slowest rate? Answer: B. Serial 19. What is the maximum data transfer rate of USB High Speed? Answer: C. 480 Mbps 20. VGA cables use what type of signal between the adapter and monitor? Answer: B. Analog ChatGPT Here are the answers to the review questions: 1. Which voltage is applied to the paper to transfer the toner to the paper in an EP process laser printer? Answer: A. +600VDC 2. Which types of printers are referred to as page printers because they receive their print job instructions one page at a time? (Choose two.) Answers: D. Laser and E. Thermal 3. Which of the following is not an advantage of a Universal Serial Bus (USB) printer interface? Answer: D. It allows the printer to communicate with networks, servers, and workstations.

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