Which of the following correctly describes the type of signal that the network media carries?

Cisco 1 - Networking Basics

Perrine. J Page 104/20/23

Chapter 3

Which of the following correctly describes the type of signal that the network media carries?

1. Coaxial cable carries pulses of light

2. UTP cable carries impedance signals

3. STP cable carries electrical impulses

4. Fiber-optic cable carries electrical impulses



Chapter 3

Which of the following correctly describes the type of signal that the network media carries?

1. Coaxial cable carries pulses of light

2. UTP cable carries impedance signals

3. STP cable carries electrical impulses

4. Fiber-optic cable carries electrical impulses



Chapter 3

Select the characteristics specified by 10BaseT. (Choose three.)

1. twisted pair cable

2. T style connectors

3. baseband transmission

4. 10 gigabits per second data rate

5. 10 megabits per second data rate

6. decimal encoded data transmission



Chapter 3

Select the characteristics specified by 10BaseT. (Choose three.)

1. twisted pair cable

2. T style connectors

3. baseband transmission

4. 10 gigabits per second data rate

5. 10 megabits per second data rate

6. decimal encoded data transmission



Chapter 3

Which of the following describe the purpose of the conductive braid around the insulator of a coaxial cable? (Choose three.)

1. power supply conductor

2. shield for noise reduction

3. signal ground connection

4. data signal carrying conductor

5. filter to prevent signal reflections

6. secondary filter channel connector



Chapter 3

Which of the following describe the purpose of the conductive braid around the insulator of a coaxial cable? (Choose three.)

1. power supply conductor

2. shield for noise reduction

3. signal ground connection

4. data signal carrying conductor

5. filter to prevent signal reflections

6. secondary filter channel connector



Chapter 3

Which of the following is an external source of degradation of the signal on cabling?

1. EMI caused by electrical motors

2. RFI caused by light leakage

3. Impedance caused by radio systems

4. RFI caused by lighting



Chapter 3

Which of the following is an external source of degradation of the signal on cabling?

1. EMI caused by electrical motors

2. RFI caused by light leakage

3. Impedance caused by radio systems

4. RFI caused by lighting



Chapter 3

Which effects comprise impedance? (Choose three.)

1. capacitance

2. voltage

3. current

4. resistance

5. inductance

6. power



Chapter 3

Which effects comprise impedance? (Choose three.)

1. capacitance

2. voltage

3. current

4. resistance

5. inductance

6. power



Chapter 3

How does crosstalk occur?

1. Cable wires that are too large in diameter

2. Too much noise in a cable’s data signal

3. Electrical motors and lighting

4. Electrical signals from other wires in a cable



Chapter 3

How does crosstalk occur?

1. Cable wires that are too large in diameter

2. Too much noise in a cable’s data signal

3. Electrical motors and lighting

4. Electrical signals from other wires in a cable



Chapter 3

Which of the following characteristics describe STP cable? (Choose three.)

1. costs more than UTP

2. easier to install than UTP

3. uses the shield to carry data signals

4. twisted pairs are not required because of the shield

5. must be grounded at both ends for high frequency signals

6. reduces both internal and external sources of interference



Chapter 3

Which of the following characteristics describe STP cable? (Choose three.)

1. costs more than UTP

2. easier to install than UTP

3. uses the shield to carry data signals

4. twisted pairs are not required because of the shield

5. must be grounded at both ends for high frequency signals

6. reduces both internal and external sources of interference



Chapter 3

What type of UTP cable does the TIA/EIA-568B standard require for horizontal cabling?

1. Tow pairs of 100-ohm cable

2. Two pairs of 150-ohm cable

3. Four pairs of 100-ohm cable




Chapter 3

What type of UTP cable does the TIA/EIA-568B standard require for horizontal cabling?

1. Tow pairs of 100-ohm cable

2. Two pairs of 150-ohm cable





Chapter 3

Which of the following describe the light used for fiber optic transmission? (Choose two.)

1. It is within the spectrum of visible light.

2. It is outside the spectrum of visible light.

3. The wavelengths are longer than red light.

4. It is within the spectrum of ultraviolet light.

5. The wavelengths are longer than visible light



Chapter 3

Which of the following describe the light used for fiber optic transmission? (Choose two.)

1. It is within the spectrum of visible light.

2. It is outside the spectrum of visible light.

3. The wavelengths are longer than red light.

4. It is within the spectrum of ultraviolet light.

5. The wavelengths are longer than visible light



Chapter 3

What is Category 5 UTP cabling suitable for?

1. Transmitting data at speeds up to 10 Mbps


3. 10BASE-T networks

4. Token Ring networks



Chapter 3

What is Category 5 UTP cabling suitable for?



3. 10BASE-T networks

4. Token Ring networks



Chapter 3

Which of the following describe the ray model of light? (Choose three.)

1. Light bends at the boundary of two transparent materials.

2. The speed of light is greatest when passing through optical glass.

3. The speed of light is constant no matter what material passes through.

4. The optical density of the material determines how much the light will bend.

5. The index of refraction is the ratio of the speed of light in a material compared to a vacuum.



Chapter 3

Which of the following describe the ray model of light? (Choose three.)

1. Light bends at the boundary of two transparent materials.

2. The speed of light is greatest when passing through optical glass.

3. The speed of light is constant no matter what material passes through.

4. The optical density of the material determines how much the light will bend.

5. The index of refraction is the ratio of the speed of light in a material compared to a vacuum.



Chapter 3

Which grade of UTP cabling described in the TIA/EIA-568B standard is the one most frequently recommended and implemented in installations today?

1. Category 2

2. Category 3

3. Category 4

4. Category 5



Chapter 3

Which grade of UTP cabling described in the TIA/EIA-568B standard is the one most frequently recommended and implemented in installations today?

1. Category 2

2. Category 3

3. Category 4

4. Category 5



Chapter 3

Which of the following are attributes of singlemode fiber optic cable? (Choose two.)

1. one path of light

2. larger fiber optic core

3. uses LEDs as a light source

4. distances up to 5000 meters

5. higher bandwidth than multimode



Chapter 3

Which of the following are attributes of singlemode fiber optic cable? (Choose two.)

1. one path of light

2. larger fiber optic core

3. uses LEDs as a light source

4. distances up to 5000 meters

5. higher bandwidth than multimode



Chapter 3

What is the point that a device uses to measure and compare incoming digital signals called?

1. Input point

2. Zero point

3. Null reference setting

4. Signal reference ground



Chapter 3

What is the point that a device uses to measure and compare incoming digital signals called?

1. Input point

2. Zero point

3. Null reference setting

4. Signal reference ground



Chapter 3

Which of the following are characteristics of fiber optic light receivers? (Choose two.)

1. react to multiple wavelengths

2. react to a specific wavelength

3. tuned to one wavelength for noise reduction

4. use PIN photodiodes to convert light pulses to electrical signals



Chapter 3

Which of the following are characteristics of fiber optic light receivers? (Choose two.)

1. react to multiple wavelengths

2. react to a specific wavelength

3. tuned to one wavelength for noise reduction

4. use PIN photodiodes to convert light pulses to electrical signals



Chapter 3

How is the signal reference ground established?

1. By connecting the ground wire to the network wire

2. By connecting the network wire to jumper connector

3. By connecting the ground plane to the computer’s cabinet

4. By connecting the computer chassis to the network cable



Chapter 3

How is the signal reference ground established?

1. By connecting the ground wire to the network wire

2. By connecting the network wire to jumper connector

3. By connecting the ground plane to the computer’s cabinet

4. By connecting the computer chassis to the network cable



Chapter 3

Which tasks must be performed when installing fiber optic cable? (Choose three.)

1. install connectors

2. inspect laser signal using a microscope

3. cleave and polish cable ends

4. wash cable ends with mild soap and water

5. protect connector ends from dirt and damage

6. pull cables tight to reduce the number of bends and twists



Chapter 3

Which tasks must be performed when installing fiber optic cable? (Choose three.)

1. install connectors

2. inspect laser signal using a microscope

3. cleave and polish cable ends

4. wash cable ends with mild soap and water

5. protect connector ends from dirt and damage

6. pull cables tight to reduce the number of bends and twists



Chapter 3

Which devices could cause problems with a wireless transmission? (Choose two.)

1. radio

2. TV

3. microwave

4. wireless phone

5. DVD remote control



Chapter 3

Which devices could cause problems with a wireless transmission? (Choose two.)

1. radio

2. TV

3. microwave

4. wireless phone

5. DVD remote control



Chapter 3

Which of the following best describes a collision?

1. The frames from two devices impact and are damaged when they meet on the physical media

2. Two nodes transmit at the same time and one data packet has priority, so it obliterates the lesser packet

3. Two data transmissions cross paths on the network media and corrupt each other

4. A data transmission is corrupted due to an energy spike over the network media



Chapter 3

Which of the following best describes a collision?

1. The frames from two devices impact and are damaged when they meet on the physical media

2. Two nodes transmit at the same time and one data packet has priority, so it obliterates the lesser packet

3. Two data transmissions cross paths on the network media and corrupt each other

4. A data transmission is corrupted due to an energy spike over the network media



Chapter 3

Which of the following are typical specifications for data transmission cables? (Choose three.)

1. achievable bit transmission speeds

2. supported data encoding schemes

3. minimum distance between hosts

4. maximum distance before fatal attenuation

5. intended transmission type

6. intended bit level protocols type



Chapter 3

Which of the following are typical specifications for data transmission cables? (Choose three.)

1. achievable bit transmission speeds

2. supported data encoding schemes

3. minimum distance between hosts

4. maximum distance before fatal attenuation

5. intended transmission type

6. intended bit level protocols type



Chapter 3

Your company has a new wireless network setup in their building. The boss has heard the throughput for a wireless network would be 11 Mbps. You mention that because of the way WLANs transmit and acknowledge data the actual percentage of throughput would be which of the following?

1. 25%

2. 40%

3. 50%

4. 70%



Chapter 3

Your company has a new wireless network setup in their building. The boss has heard the throughput for a wireless network would be 11 Mbps. You mention that because of the way WLANs transmit and acknowledge data the actual percentage of throughput would be which of the following?

1. 25%

2. 40%

3. 50%

4. 70%



Chapter 3

Which term refers to the amount of signal power loss that can be tolerated on a fiber optic link?

1. linear laser light loss

2. optical link loss budget

3. acceptable decibel power reduction

4. maximum allowable light attenuation



Chapter 3

Which term refers to the amount of signal power loss that can be tolerated on a fiber optic link?

1. linear laser light loss

2. optical link loss budget

3. acceptable decibel power reduction

4. maximum allowable light attenuation

Which of the following correctly describes the type of signal that the network media carries?

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