IT Essentials Chapter 2 Answers | Understanding IoT (2023)

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IT Fundamentals v7.0:

1. What is a good safety precaution to take when opening a computer case?

  • Tape any sharp edges of the box.

  • Remove the cover (or door) of the computer case before installing or removing parts.

  • Remove the connections to the front panel before extending the case fully open.

  • Make sure that any loose clothing, such as a tie or shirt, remains in constant contact with the case when handling internal components.

Explanation:Computer cabinets can easily be a hazard for technicians. Before working inside a computer, examine the edges of the case and tape any sharp edges to prevent physical damage. A box opens but is rarely removed when installing or removing parts. Loose clothing must be secured before working inside a computer.

2. What reminds a person to do the โ€œAโ€ in P-A-S-S while using a fire extinguisher?

  • Point the fire extinguisher at the flames.

  • Point the fire extinguisher at the base of the fire.

  • Activate the fire extinguisher.

  • Adjust the pressure.

Explanation:When using the P-A-S-S memory aid with a fire extinguisher, the "A" in P-A-S-S is for aiming at the base of the fire and not the flames.

3. How is a power supply commonly connected to a tower case?

  • tether strap

  • retaining bar

  • screws

  • clashes

Explanation:To install a power supply in a PC tower case, open the case, align the power supply with the holes in the case, and use screws to connect the power supply to the case.

4. A technician is replacing a power supply. Which two factors should the technician consider when obtaining the replacement part? (Choose two.)

  • case type

  • input voltage level of 12 or 5 VDC

  • number of internal fans

  • output voltage

  • power

Explanation:A technician should consider the following when choosing a power supply: Motherboard type Wattage Number and type of connectors Case type The computer's input power level is either 120 or 240 VAC. Output voltages are standard 3.3, 5, and 12 VDC. A power supply typically has a fan and this is not a selectable option on a fan.

5. A technician is installing additional memory in a computer. How can the technician ensure that the memory is correctly aligned?

  • The memory module label should always face the CPU.

  • A notch on the memory module should line up with a notch in the memory slot.

  • The arrows on the memory module should line up with the arrows on the slot on the system board.

  • The memory slots are color-coded, with one end being red and the other end being blue.

6. What is used to prevent the motherboard from touching the metal parts of the computer case?

  • an I/O shield

  • thermal compound

  • clashes

  • ZIF sockets

    (Video) IT Essentials Chapter 2 Exam Answers |CISCO IT Essentials Exam 2 answers 2021 | 100% Correct Answers

Explanation:Non-metallic screws and standoffs can be insulating and protect against grounding.

7. Which statement describes the purpose of an I/O connector board?

  • Makes motherboard I/O ports available for connection in a variety of computer cases.

  • It plugs into the motherboard and expands the number of slots available for adapter cards.

  • It provides multiple connections for SATA hard drives to connect to the motherboard.

  • Connect PCIe adapter slots used for video directly to the CPU for faster processing.

Explanation:The I/O board plugs into the back of the case and has holes for each of the motherboard ports to go through, allowing the motherboard to be used in many different cases regardless of the number of ports on the board or its design.

8. What are the three important considerations when installing a CPU on a motherboard? (Choose three.)

  • Antistatic precautions are taken.

  • The CPU is correctly aligned and seated in the socket.

  • The CPU contacts are first cleaned with isopropyl alcohol.

  • The CPU heat sink and fan assembly are installed correctly.

  • The CMOS EPROM battery is removed before installing the CPU.

  • The maximum insertion force is applied to the loading lever so that the CPU is locked in place.

Explanation:The CPU is sensitive to static discharges. Its pins are very delicate and it works at high temperatures, so precautions must be taken. If the CPU was used in another machine or the fan is being replaced, you may need to remove the old thermal compound with isopropyl alcohol (not on the CPU contacts). There is no need to remove the battery from the motherboard during CPU installation. This would cause the saved BIOS settings to be lost. Minimal force should be required to lock the CPU loading lever in place.

9. When building a new PC, which component has the most influence when selecting the case and power supply?

  • graphics card

  • sound card

  • RAM module

  • Motherboard

  • hard drive type

Explanation:The choice of motherboard determines the type of case and power supply. The form factor of a motherboard must match the type of case and power supply. RAM modules, video cards and sound cards are installed on the motherboard. They must be compatible with the motherboard. A hard drive is attached to the case, but the dimensions of the drive bays are standardized.

10. What two factors should be considered when replacing old RAM modules in a PC? (Choose two.)

  • The new RAM must be BIOS or UEFI compatible.

  • The new RAM must be compatible with the motherboard.

  • The speed of the new RAM must be compatible with the chipset.

  • The power supply must provide the voltage that the new RAM requires.

  • The new RAM must match the old RAM in terms of capacity and speed.

Explanation:When replacing or upgrading a motherboard's RAM, the new RAM module must be compatible with the current motherboard. Also, the speed of the new RAM must be compatible with the chipset.

11. Check out the exhibit. In which section of the motherboard would a memory module be installed?

  • Section A

  • Section b

  • section C

  • section D

Explanation:Memory modules are inserted into memory expansion slots that have a retaining clip at each end of the slot.

12. Which type of motherboard expansion slot sends data bit by bit over a serial bus?

  • RAM

  • PCI

  • PCIe

  • pata

Explanation:A PCIe expansion slot connects to a serial bus that sends data bitwise at a much faster rate than the older PCI slot that connects to a parallel bus.

13. What PC motherboard bus is used to connect the CPU to RAM and other motherboard components?

  • front side

  • PCI

  • PCIe

  • sata

Explanation:The Front Side Bus (FSB) is used to connect the CPU to RAM, expansion cards, and other components on the motherboard. The speed of this bus is relevant when selecting replacement motherboards and RAM.

14. Where is buffering commonly used?

  • gaming laptops

  • gaming computers

  • commercial PCs

  • servers

  • pills

Explanation:Buffering is used in computers that have a lot of RAM, such as high-end servers and workstations. Buffered memory should be avoided on gaming, business, and home computers because it reduces memory speed.

15. A technician has been asked to upgrade a processor and needs to do some research. The computer is only a couple of years old. What are two types of processor packages that could be used inside the computer? (Choose two.)

  • RDA

  • LGA

  • PCIe

    (Video) IT Essentials pc hardware and software chapter 2 quiz answer | netacad

  • PGA

  • IT'S A

Explanation:Two architectures used with CPUs today are the Pin Grid Array (PGA) and the Ground Grid Array (LGA). The PGA has pins on the bottom of the processor. The LGA has pins inside the socket.

16. A student is looking to add memory to speed up a tower computer. What type of memory module should the student be looking for?


  • DIMM

  • SIMM


Explanation:Tower computer motherboards accept dual in-line memory modules (DIMMs) in memory expansion slots. A motherboard supports a particular type of DIMM, such as a DDR3 or DDR4 module.

17. What type of drive is typically installed in a 5.25-inch (13.34 cm) bay?

  • HDD

  • optical unit

  • flash drive

  • SSD

Explanation:The optical drives are installed in 5.25-inch (13.34 cm) drive bays that are accessible from the front of the case. Flash drives usually plug into USB ports. SSDs and hard drives are typically installed in a 3.5-inch (8.9 cm) drive bay or a 5.25-inch (13.34 cm) drive bay that is not accessible from the rear. front of the casing. If the drive is smaller than the bay, a tray can be purchased.

18. A technician has been asked to order a replacement internal SATA HDD. Between which two form factors will the technician have to choose? (Choose two.)

  • 2.25 inches (5.72 cm)

  • 2.5 inches (6.35cm)

  • 3.5 inches (8.89cm)

  • 5.5 inches (13.97 cm)

  • 6.25 inches (15.88 cm)

Explanation:For tower computers, internal hard drives are available in 3.5-inch and 2.5-inch (8.89 cm and 6.35 cm) form factors. SSDs tend to be in a 2.5-inch form factor.

19. While shopping for a replacement motherboard, a customer decides to also buy a new mechanical hard drive and asks the technical salesperson for advice. What storage interface should the vendor recommend for the motherboard and the new drive?

  • IDE

  • EIDE

  • sata

  • RAID 5

Explanation:Today's mechanical hard drives use SATA. Legacy PATA drives used IDE and EIDE. RAID 5 is a drive redundancy technology.

20. Which type of motherboard expansion slot has four types ranging from x1 to x16 and each type has a different length expansion slot?

  • PCIe

  • AGP

  • sata

  • PCI

Explanation:The PCIe or PCI Express bus has four types of expansion slots with different lengths: x1, x4, x8, and x16.

21. A technician is installing a new high-end video adapter card into an expansion slot on a motherboard. What may be needed to operate this video adapter card?

  • PCI expansion slot

  • PCIe x 8 expansion slot

  • Two 8-pin power connectors

  • 24-pin ATX power connector

Explanation:When using a high performance video adapter card, multiple power connectors may be required. Each of these connectors can use a 6-pin or 8-pin power connector. Video adapter cards commonly use the PCIe X 16 slot. A 24-pin ATX power connector is used to provide power to the motherboard.

22. Check out the exhibit. What type of expansion slot is shown?

  • AGP

  • PCI

  • PCIe x16

  • memory

Explanation:The four expansion slots shown in the exhibit from left to right are PCIe x1, PCI, PCIe x16, and PCIx1.

23. Check out the exhibit. What device is shown?

  • KVM switch

  • media reader

  • optical unit

  • sata drive

Explanation:A media reader can be an external USB-connected device or an internal device used to read or write to media cards.

24. When assembling a PC, how do you identify pin 1 on the front panel cables so that it can align correctly with pin 1 on the motherboard panel connector?

  • by a small arrow or notch

  • for a plus sign

  • for a P1

  • by a red wire

Explanation:Each wire that connects to the motherboard's front panel connector is marked with a small arrow to identify which pin is pin 1 so it can line up with pin 1 on the panel.

(Video) IT Essentials Chapter 2 Quiz Answers |CISCO IT Essentials quiz 2 answers 2021 | 100% Correct Answers

25. A technician is selecting a PC to be used by an employee who wants to share a keyboard and mouse between three devices. What is an important consideration that should be taken into account?

  • KVM switch

  • motherboard that supports dual channel

  • smart card reader

  • lightning connector

Fundamentals of TI v6.0:

25. A new technician has joined the IT team and is about to repair a heavy printer. What advice would you give this technician to avoid injury when transporting the heavy printer to the service area?

  • Bend your knees to use your leg strength to lift the printer.

  • Avoid bending your knees when lifting the printer.

  • Bend your back to pick up the printer.

  • Use your arms and back to lift the printer.

26. How does an online UPS protect computer equipment against blackouts and brownouts?

  • grounding excess electrical voltage

  • by using a battery to supply a constant level of voltage

  • when switching from main power to a standby power source

  • stopping the flow of voltage to the computer

27. Which circumstance increases the probability of ESD damage to a computer?

  • working in low humidity levels

  • using a magnetic screwdriver while working on a hard drive

  • connect a printer to a UPS

  • self grounding against computer case

28. Which condition refers to a reduced AC power voltage level that lasts for an extended period of time?

  • blackout

  • sinking

  • spike

  • increase

29. What are two important sources of EMI? (Choose two.)

  • infrared mice

  • RAM modules

  • electric storms

  • LCD monitors

  • power lines

30. A technician is unpacking a new PCIe video adapter from an antistatic bag to install the card in a desktop computer. Which two measures should the technician use to protect the card and other computer components? (Choose two.)

  • Use a grounded mat on the workbench.

  • Use a properly attached antistatic wrist strap.

  • Protect the card and the computer from EMI sources.

  • Make sure the workplace has a low humidity environment.

  • Connect the computer to a UPS while you install the card.

31. How should a technician dispose of an empty inkjet printer cartridge?

  • Rellรฉnalo.

  • Throw away.

  • Follow local regulations for disposal.

  • Return it to the customer.

32. What makes removing CRT monitors dangerous for a technician who is handling the removal?

  • potential breathing hazards

  • potentially explosive materials

  • high potential residual voltage

  • chemicals potentially harmful to health

33. A technician is troubleshooting connectivity to a PC and needs to verify which cable is plugged into the correct port on the patch panel. What tool should the technician use?

  • multimeter

  • toner probe

  • hit down

  • crimper

34. Which tool is designed to loosen or tighten cross head bolts?

  • phillips screwdriver

  • hex controller

  • flat head screwdriver

  • conductor torx

35. What tool would a technician use to remove a slotted screw?

(Video) IT Essential Chapter 2 Quiz Answer | Chapter 2 IT Essential Answer | CISCO | Abhi_shek

  • flat head screwdriver

  • hex controller

  • needle nose pliers

  • phillips head screwdriver

  • torx screwdriver

36. Which tool in the Windows operating system gives a technician access to initialize disks and create partitions?

  • Optimize drives

  • Disk Cleanup

  • disk management

  • Format

  • scan disk

37. Which Windows operating system tool scans critical operating system files and replaces files that have become damaged?

  • Chkdsk

  • Defragment

  • Disk Cleanup

  • disk management

  • scanning system

  • System File Checker

38. What tool should be used if a user needs to optimize the space on a hard drive?

  • Optimize drives

  • disk management

  • fdisk

  • Format

39. Why is documentation of all services and repairs an important organizational tool for a technician?

  • Increases the cost of services and repairs.

  • It allows the public exchange of information on the Internet.

  • Reduces the technical skills required of new technicians.

  • It provides reference material for similar problems when they arise in the future.

40. Which tool could cause data loss on hard disk or floppy drives?

  • a magnetic screwdriver

  • compressed air

  • a pencil

  • a computer vacuum cleaner

41. Why should you wear an antistatic wrist strap when working on electronic equipment?

  • to avoid interference from loose clothing and jewelry

  • to equalize electrical charge between a person and equipment

  • to prevent clothing made of silk, polyester or wool from generating a static charge

  • to remove static electricity from a component and safely transfer it from equipment to a grounding point

42. What precaution should be taken when working within computer systems?

  • Avoid using magnetized tools.

  • Leave the power cord connected to a grounded outlet.

  • Use ESD protection to repair monitors in humid environments.

  • Avoid using ESD wrist straps and ESD mats simultaneously.

43. What cleaning solution is recommended for cleaning the contacts of computer components?

  • isopropyl alcohol

  • isopropyl alcohol

  • window cleaner with ammonia

  • water that is mixed with a small amount of dishwashing liquid

44. Why should you never use a pencil as a tool when working inside a computer?

  • Pencil lead is corrosive.

  • The pencil lead is conductive.

  • A pencil can hold a static charge.

  • A pencil lead can induce current.

45. A technician suspects a faulty power supply. How can you check?

  • checking power supply temperature

  • by using a multimeter

  • disassembling the power supply

  • turning on the PC after disconnecting each connector in turn

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