Lesson 01-A

Question 1

What are the main functions of peripheral devices in a PC?

Answer 1

Input, output, or external storage

Peripheral devices include keyboards, mice, monitors, and external drives.

Question 2

What is housed within the system case/chassis of a PC?

Answer 2

Motherboard, CPU, memory modules, adapter cards, fixed disks, power supply unit

The case protects and organizes these components.

Question 3

How is a tower case designed?

Answer 3

Oriented vertically, can be placed on a desk or floor

Tower cases are common for desktop PCs.

Question 4

What should you understand to perform PC maintenance?

Answer 4

How to open a desktop computer’s case

This includes removing side covers and accessing internal components.

Question 5

What does the front panel of a PC case provide access to?

Answer 5

Removable media drives, power switch, drive operation LEDs

The front panel is essential for user interaction.

Question 6

What is the purpose of the rear panel of a PC case?

Answer 6

Access to power supply unit sockets and I/O ports

It is critical for connecting external devices.

Question 7

What is the function of I/O ports?

Answer 7

Allows devices to connect to the PC via a peripheral cable

These ports may be specific to device types or support multiple types.

Question 8

Define ‘hardware port’.

Answer 8

External connection point for a bus interface

Enables data transfer between devices.

Question 9

What is a connector in the context of computer peripherals?

Answer 9

Part of a peripheral cable that fits into a port

Connectors have specific shapes or form factors.

Question 10

What is the primary purpose of the Universal Serial Bus (USB)?

Answer 10

Connecting most types of peripheral devices to a computer

USB is widely used for various device classes.

Question 11

What does USB 2.0 HighSpeed standard specify?

Answer 11

Data rate of 480 Mbps shared among devices

USB 2.0 is half-duplex, meaning devices cannot send and receive simultaneously.

Question 12

What are the connector types specified in USB 2?

Answer 12

Type A, Type B, Type B Mini, Type B Micro

Each type has specific use cases for different devices.

Question 13

What advantage does USB-C offer?

Answer 13

Reversible connector design

USB-C is more robust and can be used interchangeably at both ends.

Question 14

What is the maximum cable length for FullSpeed and HighSpeed USB devices?

Answer 14

5 m

LowSpeed devices have a maximum length of 3 m.

Question 15

What does HDMI stand for?

Answer 15

High-Definition Multimedia Interface

HDMI is widely used for video and audio transmission.

Question 16

What are the types of HDMI connectors?

Answer 16

Type A, Type C, Type D

These connectors ensure correct orientation and compatibility.

Question 17

What is the primary advantage of DisplayPort over HDMI?

Answer 17

Support for daisy-chaining multiple monitors

HDMI requires a separate port for each monitor.

Question 18

What does Thunderbolt 3 use for its physical interface?

Answer 18

USB-C connector type

This allows for high-speed data transfer and versatility.

Question 19

True or False: USB 3 Type A connections are compatible with USB 1.1 and 2.0 connections.

Answer 19

True

However, Type B connections are not compatible across versions.

Question 20

Fill in the blank: The maximum power that a power delivery (PD)-capable USB port can supply is _______.

Answer 20

100 watts

This is contingent on suitable connectors and cabling.

Question 21

What does the term ‘bandwidth’ refer to in video cables?

Answer 21

The data transfer capacity of the cable

It is determined by resolution and frame rate.

Question 22

What is the typical resolution format for 4K video?

Answer 22

3840x2160

This format requires high bandwidth for proper transmission.

Question 23

What is the primary use of the USB Micro connector?

Answer 23

Connecting smaller devices like smartphones and tablets

It is distinctively flatter than older mini connectors.

Question 24

What types of devices can be connected to Thunderbolt 3 ports using converter cables?

Answer 24

Thunderbolt 1 or 2 devices

Converter cables allow Thunderbolt 1 or 2 devices to connect to Thunderbolt 3 ports.

Question 25

What will happen if a Thunderbolt device is connected to a non-Thunderbolt USB port?

Answer 25

The Thunderbolt device will not work ## Footnote Thunderbolt devices require a Thunderbolt-enabled USB port to function.

Question 26

What is the maximum data transfer speed supported by Thunderbolt 3 over a short, high-quality cable?

Answer 26

Up to 40 Gbps ## Footnote This speed is achievable over a cable length of up to 0.5 m (1.6 ft).

Question 27

How can you identify a USB-C port that supports Thunderbolt 3?

Answer 27

Look for the flash icon or check system documentation ## Footnote Not all USB-C ports support Thunderbolt 3.

Question 28

What type of connector do Apple’s iPhone and iPad devices use?

Answer 28

Lightning connector ## Footnote The Lightning connector is proprietary to Apple and is reversible.

Question 29

What type of adapter cable is needed to connect an Apple device to a PC?

Answer 29

Lightning-to-USB A or Lightning-to-USB C ## Footnote These adapters allow connectivity between Apple devices and PCs.

Question 30

What does SATA stand for?

Answer 30

Serial Advanced Technology Attachment ## Footnote SATA is the standard means of connecting internal storage drives within a desktop PC.

Question 31

What is the maximum cable length for SATA connections?

Answer 31

Up to 1 m (39 in.) ## Footnote SATA cables are terminated with compact 7-pin connectors.

Question 32

What is the purpose of the 7-pin data connector in SATA?

Answer 32

To connect data ## Footnote The 7-pin data connector does not supply power.

Question 33

What is the maximum speed supported by the first commercially available SATA standard?

Answer 33

Up to 150 MBps ## Footnote This standard was quickly followed by revisions that increased speeds.

Question 34

What do Molex connectors typically connect to?

Answer 34

Power supply unit (PSU) ## Footnote Molex connectors are used for legacy components and have 4 pins.

Question 35

What are the color codes for the DC voltage in a Molex connector?

Answer 35

* Red (5 VDC) * Yellow (12 VDC) * Black (ground) ## Footnote The color coding helps identify the voltage supplied by the pins.

Question 36

What is the purpose of eSATA?

Answer 36

Attachment of peripheral drives ## Footnote eSATA uses a specific cable type and cannot be connected with internal SATA cables.

Question 37

True or False: USB-C ports and connectors are compatible with Apple Lightning connectors and ports.

Answer 37

False ## Footnote USB-C and Lightning are different standards and are not directly compatible.

Question 38

What is the nominal data rate of a USB port supporting Gen 3.2 2x1?

Answer 38

Not specified in the content ## Footnote This information would typically be found in detailed USB specifications.

Question 39

What is a common usage scenario for a Molex connector?

Answer 39

Connecting legacy components to a power supply ## Footnote Some devices might have both SATA and Molex power connectors.

Question 40

What type of interface is used when connecting a single port on a graphics card to two monitors?

Answer 40

Not specified in the content ## Footnote The question implies the use of a specific multi-monitor interface.