IT Essentials 8 Module 1 Quiz Answers: Introduction to Personal Computer Hardware

IT Essentials 8.0 Module 1.4.1.2 Introduction to Personal Computer Hardware Quiz answers

1. Which three devices are considered output devices? (Choose three.)

fingerprint scanner
headphones
keyboard
monitor
mouse
printer

Explanation: Headphones, monitors, printers, speakers,scanners, fax machines, and projectors are all considered output devices. Fingerprint scanners, keyboards, and mice are all considered input devices.

2. A network administrator currently has three servers and needs to add a fourth, but does not have enough room for an additional monitor and keyboard. Which device allows the administrator to connect all the servers to a single monitor and keyboard?

touch screen monitor
PS/2 hub
USB switch
KVM switch
UPS

Explanation: A keyboard, video, mouse (KVM) switch is a hardware device that can be used to control more than one computer using a single keyboard, monitor, and mouse. KVM switches provide cost-efficient access to multiple servers using a single keyboard, monitor, and mouse.

3. Which action can reduce the risk of ESD damage when computer equipment is being worked on?

working on a grounded antistatic mat
lowering the humidity level in the work area
moving cordless phones away from the work area
keeping the computer plugged into a surge protector

Explanation: To help prevent ESD damage, use grounded mats on work benches and grounded floor mats in work areas. You can also use an antistatic wrist strap to prevent ESD strikes except when working inside power supplies or CRT monitors.

4. Which type of input device can identify users based on their voice?

digitizer
KVM switch
biometric identification device
scanner

Explanation: A biometric identification device is an input device that can identify a user based on a unique physical feature such as a fingerprint or voice. A digitizer is used with a stylus pen to design and create images or blueprints. A scanner is used to digitize an image or document. A KVM switch can connect multiple computers to one keyboard, monitor, and mouse.

5. How are the internal components of a computer protected against ESD?

by unplugging the computer after use
by grounding the internal components via attachment to the case
by using computer cases made out of plastic or aluminum
by using multiple fans to move warm air through the case

Explanation: Electrostatic discharge (ESD) can occur when there is a buildup of an electric charge (static electricity) on a surface which comes into contact with another. This can be mitigated by grounding the internal components of the computer to the case.

6. A technician wants to replace a failing power supply on a high-end gaming computer. Which form factor should the technician be looking for?

AT
ATX
ATX12V
EPS12V

Explanation: High-end desktop and gaming computers use the EPS12V power supply form factor. It is also used in servers.

7. Refer to the exhibit. How is the connector used in a PC?

1.4.1.2 Introduction to Personal Computer Hardware Quiz Q7

to connect legacy floppy drives
to connect optical drives
to connect disk drives
to supply power to various internal components

Explanation: This connector is called a 6/8-pin PCIe power connector and is used to supply power to various components of the computer.

8. Which expansion slot is used by an NVMe compliant device?

PCI
PCIe
USB-C
SATA

Explanation: The Non-Volatile Memory Express (NVMe) specification provides a standard interface between compliant SSD drive, the PCIe bus, and operating systems.

9. Which disk drive type contains a magnetic HDD with onboard flash memory serving as a non-volatile cache?

SCSI
SSD
NVMe
SSHD

Explanation: The Solid State Hybrid Drives (SSHD) combine a magnetic HDD with onboard flash memory serving as a non-volatile cache but cost less then SSD.

10. Which port allows for the transmission of high definition video using the DisplayPort protocol?

Thunderbolt
DVI
VGA
RCA

Explanation: The Thunderbolt port allows for transmission of high definition video using the DisplayPort protocol.

11. Refer to the exhibit. What type of connecter is displayed?

1.4.1.2 Introduction to Personal Computer Hardware Quiz Q11

DVI to HDMI adapter
HDMI to VGA converter
Molex to SATA adapter
USB to PS/2 adapter

Explanation: The displayed item is a HDMI to VGA converter that is used to convert digital signals to analog signals.

12. Which statement describes Augmented Reality (AR) technology?

It always requires a headset.
It superimposes images and audio over the real world in real time.
The headset closes off any ambient light to users.
It does not provide users with immediate access to information about their real surroundings.

Explanation: Augmented Reality (AR) superimposes images and audio over the real world in real time. It does allow ambient light and does not require headsets all the time.

13. Which two PC components communicate with the CPU through the Southbridge chipset? (Choose two.)

RAM
hard drive
64-bit gigabit Ethernet adapter
video card

Explanation: The Northbridge chipset allows the fastest components such as the RAM and the video card to interface with the CPU at the front side bus speed. All other components such as the BIOS, hard drive and the expansion slots communicate with the CPU via the Southbridge chipset.

14. Which motherboard form factor has the smallest footprint for use in thin client devices?

ATX
Micro-ATX
Mini-ATX
ITX

Explanation: The Mini-ATX motherboard form factor is the smallest form factor (17cm X 17cm or 6.7 inches X 6.7 inches) and is used in thin clients and set-top boxes.

15. What is the maximum storage capacity of a single DDR5 DIMM stick?

64 GB
128 GB
256 GB
32 GB

Explanation: DDR5 brings some incremental improvements over DDR4. Unlike the maximum 32GB capacity on a DDR4 DIMM stick, DDR5 raises this to a potential 128GB per module.