Devices and Peripherals

Question 1

What is the type of storage - NAS?

Answer 1

o Network Attached Storage (NAS)
▪ Dedicated server connected to a network, designed for storing data in a
central location

Question 2

What is the type of storage - SAN?

Answer 2

o Storage Area Network (SAN)
▪ High-speed network of storage devices that can also be accessed by
multiple servers

Question 3

What is tape storage, where may it be used?

Answer 3

Tape Storage
▪ Used more specifically in environments that need to store large amounts
of data for long periods e.g. hospitals

Question 4

What is a storage system made exclusively of flash memory drives called?

Answer 4

Flash Arrays

Question 5

What is RAID?

Answer 5

o Redundant Array of Inexpensive Disks (RAID)
▪ Allows data to be distributed across multiple drives

Question 6

What is colour depth?

Answer 6

Each pixel can be a different color, and the total number of colors an image supports is called its color depth

Question 7

What is refresh rate?

Answer 7

Measured in Hertz (Hz), determines how many times your display
updates with new information per second

Question 8

What are the specifications of VGA.

Answer 8

o Video Graphics Array (VGA)
▪ Defined a resolution of 640x480 pixels with 16 colors at a refresh rate of
60 Hz

Question 9

What connector do all VGA devices use?

Answer 9

A standard D-shaped 15-pin connector

Question 10

What came after VGA?

Answer 10

o After VGA, a new adapter called DVI, or the Digital Visual Interface, was
introduced
▪ DVI came in three varieties
● DVI-A (Analog variant)
● DVI-D (Digital variant)
● DVI-I (Supported both analog and digital output)

Question 11

What does HDMI stand for?

Answer 11

High Definition Multimedia Interface

Question 12

What are the benefit of Display Port (DP) and MiniDP?

Answer 12

o DisplayPort (or DP) is another type of connector commonly used with
computers to have higher resolutions
o Mini-DisplayPort offers high-definition video output up to 4K resolution, audio
output, and multi-stream transport for daisy-chaining multiple displays

Question 13

What are the two forms of graphic cards?

Answer 13

Integrated and Discrete

Question 14

What is Firewire?

Answer 14

o Firewire
▪ Legacy connection type that was based on the IEEE 1394 standard and
SCSI protocol

Question 15

What does USB stand for, what types are there?

Answer 15

o Universal Serial Bus (USB)
● USB-A
● USB-B
● USB-C

Question 16

What 4 types of short-range radio frequency connections are there?

Answer 16

Bluetooth
Passive RFID (Close range)
Active RFID (up to 100m)
Near Field Communication

Question 17

What types of Registered Jack connections are there and what are their purposes?

Answer 17

● RJ11 (Phone Lines and Voice Service)
* The smaller of the two connector types and it is predominantly used for telephone systems

● RJ45 (Data and Digital Service)
* The larger sibling to an RJ11 connection and is widely used in Ethernet and network cabling

Question 18

What frequencies can Wi-Fi work on and what are their purposes?

Answer 18

▪ It operates on two main frequency bands
● 2.4 GHz frequency has a greater range, but slower speeds
● 5 GHz frequency has faster speeds, but a shorter range

Question 19

What is RFID?

Answer 19

o Radio Frequency ID (RFID)
▪ Using specially-encoded tags, RFID allows objects to be scanned and
identified

Question 20

What is NFC?

Answer 20

o Near Field Communication (NFC)
▪ Requires devices to be very close to each other, typically a few inches. Considered to be a subset of Radio Frequency Identification, or RFID, and is often used for more secure interactions.

Question 21

What is a driver?

Answer 21

o Driver
▪ Piece of software that allows the computer to communicate with the new device and use it to its full potential

Question 22

What do you do if a device does not install automatically?

Answer 22

● Visit the device manufacturer’s website
● Download the correct driver
● Follow the on-screen prompts to install it