IT Essentials v7.01 Chapter 1 Quiz Answers

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

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

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.

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

Micro-ATX
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.

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

SCSI
NVMe
SSD
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.

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

IT Essentials v7.01 Chapter 1 Quiz Answers Q3

to connect optical drives
to connect disk drives
to connect legacy floppy 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.

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

IT Essentials v7.01 Chapter 1 Quiz Answers Q7

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

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

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

fingerprint scanner
monitor
headphones
printer
keyboard
mouse

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.

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

VGA
RCA
DVI
Thunderbolt

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

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

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

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.

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

scanner
KVM switch
digitizer
biometric identification device

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.

10. 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
KVM switch
USB switch
UPS
PS/2 hub

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.

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

by using computer cases made out of plastic or aluminum
by unplugging the computer after use
by grounding the internal components via attachment to the case
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.

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

SATA
PCIe
USB-C
PCI

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

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

ATX12V
EPS12V
AT
ATX

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

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

video card
hard drive
64-bit gigabit Ethernet adapter
RAM

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.

15. How is the 6/8-pin PCIe power connector used in a PC?

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

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

16. What type of connecter is used to convert digital signals to analog signals?

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

Explanation: An HDMI-to-VGA converter is used to convert digital signals to analog signals.

17. Which two of these devices are considered to be the most common input devices? (Choose two.)

headphones
printer
mouse
fingerprint scanner
keyboard
monitor

Explanation: Fingerprint scanners, keyboards, and mice are all considered input devices, but the two considered the most common are the mouse and keyboard.