A+ IT Essentials Quiz 1

Question 1

Which three devices are considered output devices?

Answer 1

monitor
headphones
printer

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

Question 2

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

Answer 2

by grounding the internal components via attachment to the case

Answers Explanation & Hints:
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.

Question 3

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

Answer 3

Mini-ATX

Answers Explanation & Hints:
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.

Question 4

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

Answer 4

SSHD

Answers Explanation & Hints:
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.

Question 5

Which two PC components communicate with the CPU through the Southbridge chipset?

Answer 5

hard drive
64-bit gigabit Ethernet adapter

Answers Explanation & Hints:
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.

Question 6

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

Answer 6

Thunderbolt

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

Question 7

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

Answer 7

working on a grounded antistatic mat

Answers Explanation & Hints:
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.

Question 8

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

Answer 8

biometric identification device

Answers Explanation & Hints:
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.

Question 9

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

Answer 9

EPS12V

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

Question 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?

Answer 10

KVM switch

Answers Explanation & Hints:
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.

Question 11

Which statement describes Augmented Reality (AR) technology?

Answer 11

It superimposes images and audio over the real world in real time.

Answers Explanation & Hints:
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.

Question 12

Which expansion slot is used by an NVMe compliant device?

Answer 12

PCIe

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