Question 1

What is Ethernet, and why is it considered a collection of standards rather than a single standard?

Accepted Answer

Ethernet is a family of standards for wired connections, defining both physical aspects and data formatting.

Answer

Ethernet only refers to copper cable connections.

Answer

Ethernet defines rules for communication over wireless networks.

Answer

Ethernet is a type of cable used for network connections.

Question 2

What does UTP stand for?

Accepted Answer

Unshielded Twisted Pair

Answer

Unsecured Transfer Path

Answer

Uninterrupted Transmission Pair

Answer

Unified Transmission Protocol

Question 3

What is the difference between UTP and STP cables?

Accepted Answer

STP cables have a metallic shield to reduce interference, while UTP cables do not.

Answer

UTP cables have fewer wires than STP cables.

Answer

UTP cables are shielded to prevent interference, while STP cables are unshielded

Answer

UTP cables are only used in fiber-optic networks, while STP cables are used in Ethernet

Question 4

What are the two main types of fiber-optic cables?

Accepted Answer

Single-mode and multimode

Answer

Shielded and unshielded

Answer

Copper and fiber

Answer

Twisted pair and coaxial

Question 5

What is the maximum cable length for copper UTP cables?

Accepted Answer

100 meters

Answer

1000 meters

Answer

500 meters

Answer

50 meters

Question 6

What does Auto MDI-X allow devices to do?

Accepted Answer

Use the same cable type regardless of connection

Answer

Increase data speed over fiber-optic cables

Answer

Automatically detect network speeds

Answer

Eliminate the need for physical cables

Question 7

What is the main difference between multimode fiber (MMF) and single-mode fiber (SMF) cables?

Accepted Answer

MMF uses LED transmitters and supports shorter distances, while SMF uses laser transmitters and supports longer distances.

Answer

MMF cables transmit data using electrical signals, while SMF cables use light signals.

Answer

MMF cables are used for outdoor connections, while SMF cables are used indoors.

Answer

MMF supports longer distances, while SMF supports shorter distances.

Question 8

Why is it possible for devices from different manufacturers to communicate over modern networks?

Accepted Answer

Standards define rules for data formatting and physical connections.

Answer

Modern devices have universal connectors for all networks.

Answer

Communication only occurs between devices of the same brand.

Answer

All manufacturers use the same hardware components

Question 9

What is Auto MDI-X, and how does it simplify network cable usage?

Accepted Answer

It automatically adjusts which pins to use for transmitting and receiving data, making cable type irrelevant.

Answer

It allows a device to connect without using any cables.

Answer

It enables faster data transmission over copper cables.

Answer

It ensures that only crossover cables are needed for all connections.

Question 10

What are the main advantages of fiber-optic cables over copper UTP cables?

Accepted Answer

Fiber-optic cables support greater distances and are immune to EMI.

Answer

Fiber-optic cables require less maintenance and are more durable.

Answer

Fiber-optic cables are cheaper and easier to install.

Answer

Fiber-optic cables are universally supported by all devices.

Question 11

What is the purpose of the twisting in UTP cables?

Accepted Answer

To reduce electromagnetic interference (EMI) between the wires.

Answer

To improve compatibility with fiber-optic cables.

Answer

To ensure all wires are the same length.

Answer

To make the cables more flexible for installation.

Question 12

What is the maximum cable length supported by copper UTP connections, and what happens if this length is exceeded?

Accepted Answer

100 meters; the signal attenuates, causing performance issues.

Answer

50 meters; the signal speed increases.

Answer

100 meters; the cable overheats and causes damage.

Answer

200 meters; the connection switches to fiber-optic.

Question 13

How many wires are inside a standard UTP cable?

Accepted Answer

8

Answer

4

Answer

2

Answer

6

Question 14

Which standard uses all four pairs of wires in a UTP cable?

Accepted Answer

1000BASE-T

Answer

10BASE-T

Answer

Cat 3

Answer

100BASE-T

Question 15

What unit is used to measure network speed?

Accepted Answer

Bits per second

Answer

Bytes per second

Answer

Megabytes per minute

Answer

Kilograms per second

Question 16

What does MMF stand for in fiber-optic cables?

Accepted Answer

Multimode Fiber

Answer

Multi-Megabit Fiber

Answer

Multi-Metal Fiber

Answer

Main Mode Fiber

Question 17

What happens if a UTP cable exceeds 100 meters?

Accepted Answer

The signal weakens, reducing performance.

Answer

The cable becomes unusable.

Answer

The cable overheats.

Answer

The connection speed increases.

Question 18

Which device uses laser transmitters to send data over a narrow core fiber?

Accepted Answer

SMF cables

Answer

Copper wires

Answer

UTP cables

Answer

MMF cables

Question 19

What are straight-through cables used for?

Accepted Answer

Connecting different devices (e.g., PC to switch)

Answer

Increasing data speed

Answer

Connecting wireless routers

Answer

Connecting similar devices (e.g., PC to PC)

Question 20

What is the main advantage of fiber-optic cables over copper cables?

Accepted Answer

Greater distance support

Answer

Universal compatibility

Answer

Easier installation

Answer

Lower cost

Question 21

What does IEEE 802.3 refer to?

Accepted Answer

The Ethernet standard for wired communication

Answer

A standard for wireless communication

Answer

A connector type used in networks

Answer

A fiber-optic cable type

Question 22

What is the informal name for the IEEE 802.11 standard?

Accepted Answer

Wi-Fi

Answer

Ethernet

Answer

Bluetooth

Answer

Fiber-optic

Question 23

What is an 8P8C connector commonly referred to as?

Accepted Answer

RJ45

Answer

SMA

Answer

Cat 6

Answer

MMF

Question 24

Which organization defines the standards for cables such as Cat 5 and Cat 6?

Accepted Answer

TIA/EIA

Answer

IEEE

Answer

FCC

Answer

ISO

Question 25

What does the “BASE” in 10BASE-T signify?

Accepted Answer

Baseband signaling

Answer

Basic Ethernet

Answer

Base connector type

Answer

Broadband signaling

Question 26

Which of the following is an advantage of fiber-optic cables in terms of security?

Accepted Answer

They are harder to intercept because they don’t emit signals.

Answer

They require no additional security software.

Answer

They are easier to encrypt.

Answer

They automatically detect intrusions.

Question 27

What are the two main types of SFP transceivers?

Accepted Answer

Single-mode and multimode

Answer

Laser and LED

Answer

Transmitting and receiving

Answer

Copper and Fiber

Question 28

What is signal attenuation?

Accepted Answer

Signal degradation or weakening over distance

Answer

The conversion of electrical signals to light

Answer

The complete loss of a signal

Answer

A signal strengthening over distance

Question 29

What is the main purpose of cladding in a fiber-optic cable?

Accepted Answer

Reflect light back into the core for signal transmission

Answer

Increase the cable's flexibility

Answer

Protect the core from damage

Answer

Provide color coding for cables

Question 30

What are the two primary media for transmitting binary data in Ethernet networks?

Accepted Answer

Light signals and electrical signals

Answer

Magnetic fields and light waves

Answer

Electrical signals and sound waves

Answer

Sound waves and radio waves

Question 31

Which type of cable would you typically use to connect switches on different floors of a building?

Accepted Answer

Fiber-optic

Answer

Cat 3 UTP

Answer

Cat 5e UTP

Answer

Crossover

Question 32

What type of transmitter is used in single-mode fiber (SMF) cables?

Accepted Answer

Laser

Answer

LED

Answer

Infrared

Answer

Electromagnetic

Question 33

What is the typical core material of a fiber-optic cable?

Accepted Answer

Glass

Answer

Copper

Answer

Aluminum

Answer

Plastic

Question 34

What is the function of the buffer layer in a fiber-optic cable?

Accepted Answer

It provides physical protection for the cable.

Answer

It transmits electrical signals.

Answer

It reflects the light back into the core.

Answer

It transmits the light signal.

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