Fiber-optic cables do not: a. carry current b. cause crosstalk c. generate EMI d. all of the above

Fiber-optic cables do not:
a. carry current b. cause crosstalk c. generate EMI d. all of the above
by

1 Answer

Answer :

d. all of the above
by

Related questions

Fiber-optic cables with attenuation of 1.8, 3.4, 5.9 and 18 dB are linked together. The total loss is ∙ A. 7.5 dB ∙ B. 19.8 dB ∙ C. 29.1 dB ∙ D. 650 dB

Description : Fiber-optic cables with attenuation of 1.8, 3.4, 5.9 and 18 dB are linked together. The total loss is ∙ A. 7.5 dB ∙ B. 19.8 dB ∙ C. 29.1 dB ∙ D. 650 dB

Last Answer : C. 29.1 dB

Fiber-optic cables with attenuations of 1.8, 3.4, 5.9, and 18 dB are linked together. The total loss is ∙ a. 7.5 dB ∙ b. 19.8 dB ∙ c. 29.1 dB ∙ d. 650 dB

Description : Fiber-optic cables with attenuations of 1.8, 3.4, 5.9, and 18 dB are linked together. The total loss is ∙ a. 7.5 dB ∙ b. 19.8 dB ∙ c. 29.1 dB ∙ d. 650 dB

Last Answer : ∙ c. 29.1 dB

Fiber optic cables operate at frequencies near ∙ a. 20 MHz ∙ b. 200 MHz ∙ c. 2G Hz ∙ d. 800 THz

Description : Fiber optic cables operate at frequencies near ∙ a. 20 MHz ∙ b. 200 MHz ∙ c. 2G Hz ∙ d. 800 THz

Last Answer : ∙ d. 800 THz

The use of solitons on fiber-optic cables is: a. common b. experimental c. obsolete d. not possible

Description : The use of solitons on fiber-optic cables is: a. common b. experimental c. obsolete d. not possible

Last Answer : b. experimental

Photodiodes used as fiber optic directors are ∙ a. Unbiased to generate a voltage same as a solar cell ∙ b. Forward bias ∙ c. Reversed bias ∙ d. Thermoelectrically cooled

Description : Photodiodes used as fiber optic directors are ∙ a. Unbiased to generate a voltage same as a solar cell ∙ b. Forward bias ∙ c. Reversed bias ∙ d. Thermoelectrically cooled

Last Answer : ∙ c. Reversed bias

It is analogous to power dissipation to copper cables, impurities in the fiber absorb the light and covert it to heat. ∙ A. power loss ∙ B. absorption loss ∙ C. resistive loss ∙ D. heat loss

Description : It is analogous to power dissipation to copper cables, impurities in the fiber absorb the light and covert it to heat. ∙ A. power loss ∙ B. absorption loss ∙ C. resistive loss ∙ D. heat loss

Last Answer : B. absorption loss

They proposed a new communication medium using cladded fiber cables. ∙ A. Kao and Bockham ∙ B. Maiman, Kao and Bockham ∙ C. Kapron, Keck and Maurer ∙ D. Maiman and Schawlow

Description : They proposed a new communication medium using cladded fiber cables. ∙ A. Kao and Bockham ∙ B. Maiman, Kao and Bockham ∙ C. Kapron, Keck and Maurer ∙ D. Maiman and Schawlow

Last Answer : ∙ A. Kao and Bockham

They were granted patents for scanning and transmitting television images through uncoated fiber cables. ∙ A. Baird and Hansel ∙ B. Bockham and Kao ∙ C. Kapron and Keck

Description : They were granted patents for scanning and transmitting television images through uncoated fiber cables. ∙ A. Baird and Hansel ∙ B. Bockham and Kao ∙ C. Kapron and Keck

Last Answer : A. Baird and Hansel

Calculate the total rise time for a fiber-optic system if the transmitter, receiver, and cable each have a rise time of 50 nanoseconds.

Description : Calculate the total rise time for a fiber-optic system if the transmitter, receiver, and cable each have a rise time of 50 nanoseconds.

Last Answer : 86.6 nanoseconds

Which type of fiber-optic cable is the most widely used? ∙ A. single-mode step-index ∙ B. multimode step-index ∙ C. single-mode graded index ∙ D. multimode graded index

Description : Which type of fiber-optic cable is the most widely used? ∙ A. single-mode step-index ∙ B. multimode step-index ∙ C. single-mode graded index ∙ D. multimode graded index

Last Answer : B. multimode step-index

Which of the following is not a major benefit of a fiber-optic cable? ∙ A. immunity from interference ∙ B. no electrical safety problems ∙ C. excellent data security ∙ D. lower cost

Description : Which of the following is not a major benefit of a fiber-optic cable? ∙ A. immunity from interference ∙ B. no electrical safety problems ∙ C. excellent data security ∙ D. lower cost

Last Answer : ∙ D. lower cost

The core of fiber-optic cable is surrounded by ∙ A. wire braid shield ∙ B. Keviar ∙ C. cladding ∙ D. plastic insulation

Description : The core of fiber-optic cable is surrounded by ∙ A. wire braid shield ∙ B. Keviar ∙ C. cladding ∙ D. plastic insulation

Last Answer : ∙ C. cladding

The core of a fiber-optic cable is made of ∙ A. air ∙ B. glass ∙ C. diamond ∙ D. quartz

Description : The core of a fiber-optic cable is made of ∙ A. air ∙ B. glass ∙ C. diamond ∙ D. quartz

Last Answer : B. glass

Which of the following is not a common type of fiber-optic cable? ∙ A. single-mode step-index ∙ B. multimode graded-index ∙ C. single-mode graded-index ∙ D. multimode step-index

Description : Which of the following is not a common type of fiber-optic cable? ∙ A. single-mode step-index ∙ B. multimode graded-index ∙ C. single-mode graded-index ∙ D. multimode step-index

Last Answer : . single-mode graded-index

The operation of a fiber-optic cable is based on the principle of ∙ A. refraction ∙ B. reflection ∙ C. dispersion ∙ D. absorption

Description : The operation of a fiber-optic cable is based on the principle of ∙ A. refraction ∙ B. reflection ∙ C. dispersion ∙ D. absorption

Last Answer : A. refraction

A popular light wavelength fiber-optic cable is ∙ A. 0.7 micrometer ∙ B. 1.3 micrometer ∙ C. 1.5 micrometer ∙ D. 1.8 micrometer

Description : A popular light wavelength fiber-optic cable is ∙ A. 0.7 micrometer ∙ B. 1.3 micrometer ∙ C. 1.5 micrometer ∙ D. 1.8 micrometer

Last Answer : B. 1.3 micrometer

Which type of fiber optic cable is best for very high speed data? ∙ A. single-mode step-index ∙ B. multimode step-index ∙ C. single-mode graded-index ∙ D. multimode graded-index

Description : Which type of fiber optic cable is best for very high speed data? ∙ A. single-mode step-index ∙ B. multimode step-index ∙ C. single-mode graded-index ∙ D. multimode graded-index

Last Answer : A. single-mode step-index

Which type of fiber-optic cable has the least modal dispersion? ∙ A. single-mode step-index ∙ B. multimode step-index ∙ C. single-mode graded-index ∙ D. multimode graded-index

Description : Which type of fiber-optic cable has the least modal dispersion? ∙ A. single-mode step-index ∙ B. multimode step-index ∙ C. single-mode graded-index ∙ D. multimode graded-index

Last Answer : A. single-mode step-index

A fiber-optic cable has a loss of 15 dB/km. The attenuation in a cable 1000 ft. long is ∙ A. 4.57 dB ∙ B. 9.3 dB ∙ C. 24 dB ∙ D. 49.2 dB

Description : A fiber-optic cable has a loss of 15 dB/km. The attenuation in a cable 1000 ft. long is ∙ A. 4.57 dB ∙ B. 9.3 dB ∙ C. 24 dB ∙ D. 49.2 dB

Last Answer : A. 4.57 dB

The term single mode and multimode are best described as ∙ A. a number of fibers placed into fiber-optic cable ∙ B. the number of voice channels each fiber can support ∙ C. the number of wavelengths each fiber can support ∙ D. the index number

Description : The term single mode and multimode are best described as ∙ A. a number of fibers placed into fiber-optic cable ∙ B. the number of voice channels each fiber can support ∙ C. the number of wavelengths each fiber can support ∙ D. the index number

Last Answer : C. the number of wavelengths each fiber can support

Which light emitter is preferred for high-speed data in a fiber-optic system? ∙ A. incandescent ∙ B. LED ∙ C. neon ∙ D. laser

Description : Which light emitter is preferred for high-speed data in a fiber-optic system? ∙ A. incandescent ∙ B. LED ∙ C. neon ∙ D. laser

Last Answer : D. laser

Most fiber optic light sources emit light in which spectrum? ∙ A. visible ∙ B. infrared ∙ C. ultraviolet ∙ D. X-ray

Description : Most fiber optic light sources emit light in which spectrum? ∙ A. visible ∙ B. infrared ∙ C. ultraviolet ∙ D. X-ray

Last Answer : B. infrared

. The product of the bit rate and distance of a fiber-optic system is 2 Gbits-km/s. What is the maximum rate at 5 km? ∙ A. 100 Mbits/s ∙ B. 200 Mbits/s ∙ C. 400 Mbits/s ∙ D. 1000 Gbits/s

Description : . The product of the bit rate and distance of a fiber-optic system is 2 Gbits-km/s. What is the maximum rate at 5 km? ∙ A. 100 Mbits/s ∙ B. 200 Mbits/s ∙ C. 400 Mbits/s ∙ D. 1000 Gbits/s

Last Answer : C. 400 Mbits/s

. Which fiber-optic system is better? ∙ A. 3 repeaters ∙ B. 8 repeaters ∙ C. 11 repeaters ∙ D. 20 repeaters

Description : . Which fiber-optic system is better? ∙ A. 3 repeaters ∙ B. 8 repeaters ∙ C. 11 repeaters ∙ D. 20 repeaters

Last Answer : A. 3 repeaters

SONET stands for ∙ a. System Optical Network ∙ b. Synchronous Optical Network ∙ c. Silica Optic Network ∙ d. System Optical Fiber Net

Description : SONET stands for ∙ a. System Optical Network ∙ b. Synchronous Optical Network ∙ c. Silica Optic Network ∙ d. System Optical Fiber Net

Last Answer : ∙ b. Synchronous Optical Network

Which fiber-optic system is better? ∙ a. 3 repeaters ∙ b. 8 repeaters ∙ c. 11 repeaters ∙ d. 20 repeaters

Description : Which fiber-optic system is better? ∙ a. 3 repeaters ∙ b. 8 repeaters ∙ c. 11 repeaters ∙ d. 20 repeaters

Last Answer : a. 3 repeaters

The product of the bit rate and distance of a fiber-optic system is 2 Gbits km/s. What is the maximum rate at 5 km? ∙ a. 100 Mbits/s ∙ b. 200 Mbits/s ∙ c. 400 Mbits/s ∙ d. 1000 Gbits/s

Description : The product of the bit rate and distance of a fiber-optic system is 2 Gbits km/s. What is the maximum rate at 5 km? ∙ a. 100 Mbits/s ∙ b. 200 Mbits/s ∙ c. 400 Mbits/s ∙ d. 1000 Gbits/s

Last Answer : c. 400 Mbits/s

Most fiber-optic light sources emit light in which spectrum? ∙ a. Visible ∙ b. Infrared ∙ c. Ultraviolet ∙ d. X-ray

Description : Most fiber-optic light sources emit light in which spectrum? ∙ a. Visible ∙ b. Infrared ∙ c. Ultraviolet ∙ d. X-ray

Last Answer : ∙ b. Infrared

Which light emitter is preferred for high speed data in a fiber-optic system ∙ a. Incandescent ∙ b. LED ∙ c. Neon ∙ d. Laser

Description : Which light emitter is preferred for high speed data in a fiber-optic system ∙ a. Incandescent ∙ b. LED ∙ c. Neon ∙ d. Laser

Last Answer : ∙ d. Laser

. A fiber-optic cable has a loss of 15 dB/km. The attenuation in a cable, 100 ft long is ∙ a. 4.57 dB ∙ b. 9.3 dB ∙ c. 24 dB ∙ d. 49.2 dB

Description : . A fiber-optic cable has a loss of 15 dB/km. The attenuation in a cable, 100 ft long is ∙ a. 4.57 dB ∙ b. 9.3 dB ∙ c. 24 dB ∙ d. 49.2 dB

Last Answer : ∙ a. 4.57 dB

Which type of fiber-optic cable has the least modal dispersion? ∙ a. Single mode step-index ∙ b. Multimode step-index ∙ c. Single-mode graded-index ∙ d. Multimode graded-index

Description : Which type of fiber-optic cable has the least modal dispersion? ∙ a. Single mode step-index ∙ b. Multimode step-index ∙ c. Single-mode graded-index ∙ d. Multimode graded-index

Last Answer : ∙ a. Single mode step-index

Which type of fiber-optic cable is the best for very high speed data? ∙ a. Single-mode step-index ∙ b. Multimode step-index ∙ c. Single-mode graded-index ∙ d. Multimode graded-index

Description : Which type of fiber-optic cable is the best for very high speed data? ∙ a. Single-mode step-index ∙ b. Multimode step-index ∙ c. Single-mode graded-index ∙ d. Multimode graded-index

Last Answer : a. Single-mode step-index

Which type of fiber optic cable is most widely used? ∙ a. Single-mode step-index ∙ b. Multimode step-index ∙ c. Single-mode graded-index ∙ d. Multimode graded-index

Description : Which type of fiber optic cable is most widely used? ∙ a. Single-mode step-index ∙ b. Multimode step-index ∙ c. Single-mode graded-index ∙ d. Multimode graded-index

Last Answer : a. Single-mode step-index

Which of the following is not a major benefit of fiber-optic cable? ∙ a. Immunity from interference ∙ b. No electrical safety problems ∙ c. Excellent data security ∙ d. Lower cost

Description : Which of the following is not a major benefit of fiber-optic cable? ∙ a. Immunity from interference ∙ b. No electrical safety problems ∙ c. Excellent data security ∙ d. Lower cost

Last Answer : b. No electrical safety problems

The core of a fiber optic is surrounded by ∙ a. Wire braid shield ∙ b. Kevlar ∙ c. Cladding ∙ d. Plastic insulation

Description : The core of a fiber optic is surrounded by ∙ a. Wire braid shield ∙ b. Kevlar ∙ c. Cladding ∙ d. Plastic insulation

Last Answer : ∙ c. Cladding

The core of a fiber optic cable is made of ∙ a. Air ∙ b. Glass ∙ c. Diamond ∙ d. Quartz

Description : The core of a fiber optic cable is made of ∙ a. Air ∙ b. Glass ∙ c. Diamond ∙ d. Quartz

Last Answer : b. Glass

Which of the following is not a common type of fiber-optic cable? ∙ a. Single-mode step-index ∙ b. Multimode graded-index ∙ c. Single-mode graded-index ∙ d. Multimode step-index

Description : Which of the following is not a common type of fiber-optic cable? ∙ a. Single-mode step-index ∙ b. Multimode graded-index ∙ c. Single-mode graded-index ∙ d. Multimode step-index

Last Answer : ∙ a. Single-mode step-index

The operation of the fiber-optic cable is based on the principle of ∙ a. Refraction ∙ b. Reflection ∙ c. Dispersion ∙ d. Absorption

Description : The operation of the fiber-optic cable is based on the principle of ∙ a. Refraction ∙ b. Reflection ∙ c. Dispersion ∙ d. Absorption

Last Answer : ∙ b. Reflection

Which of the following is not a common application of fiber-optic cable? ∙ a. Computer networks ∙ b. Long-distance telephone systems ∙ c. Closed circuit TV ∙ d. Consumer TV

Description : Which of the following is not a common application of fiber-optic cable? ∙ a. Computer networks ∙ b. Long-distance telephone systems ∙ c. Closed circuit TV ∙ d. Consumer TV

Last Answer : d. Consumer TV

Using fiber-optic cable in a telephone system except for the connection to the subscriber’s phone is called: a. FDDI b. FTTC c. FITL d. SONET

Description : Using fiber-optic cable in a telephone system except for the connection to the subscriber’s phone is called: a. FDDI b. FTTC c. FITL d. SONET

Last Answer : b. FTTC

Typically, repeaters are not required for fiber-optic cable lengths up to: a. 1000 miles b. 100 miles c. 100 km d. 10 km

Description : Typically, repeaters are not required for fiber-optic cable lengths up to: a. 1000 miles b. 100 miles c. 100 km d. 10 km

Last Answer : c. 100 km

The loss in single-mode fiber-optic cable due to a connector is about: a. 0.02 dB b. 0.2 dB c. 1 dB d. 3 dB

Description : The loss in single-mode fiber-optic cable due to a connector is about: a. 0.02 dB b. 0.2 dB c. 1 dB d. 3 dB

Last Answer : b. 0.2 dB

The loss in single-mode fiber-optic cable due to a splice is about: a. 0.02 dB b. 0.2 dB c. 1 dB d. 3 dB

Description : The loss in single-mode fiber-optic cable due to a splice is about: a. 0.02 dB b. 0.2 dB c. 1 dB d. 3 dB

Last Answer : a. 0.02 dB

The loss in single-mode fiber-optic cable due to the glass is about: a. 40 dB per km b. 4 db per km c. 0.4 dB per km d. zero loss

Description : The loss in single-mode fiber-optic cable due to the glass is about: a. 40 dB per km b. 4 db per km c. 0.4 dB per km d. zero loss

Last Answer : c. 0.4 dB per km

Fiber-optic cable cannot be used: a. in an explosive environment b. to connect a transmitter to an antenna c. to isolate a medical patient from a shock hazard d. none of the above

Description : Fiber-optic cable cannot be used: a. in an explosive environment b. to connect a transmitter to an antenna c. to isolate a medical patient from a shock hazard d. none of the above

Last Answer : b. to connect a transmitter to an antenna

Is the interference coming from other communications channels? A. Jitter B. Crosstalk C. RFI D. EMI

Description : Is the interference coming from other communications channels? A. Jitter B. Crosstalk C. RFI D. EMI

Last Answer : B. Crosstalk

______ cables carry data signals in the form of light. A) Coaxial B) Fiber-optic C) Twisted-pair D) none of the above

Description : ______ cables carry data signals in the form of light. A) Coaxial B) Fiber-optic C) Twisted-pair D) none of the above

Last Answer : Fiber-opti

Optic fibres are used in place of wire cables because (1) they generate strong magnetic fields (2) they do not generate magnetic fields (3) they do not require boosting (4) they are more economical

Description : Optic fibres are used in place of wire cables because (1) they generate strong magnetic fields (2) they do not generate magnetic fields (3) they do not require boosting (4) they are more economical

Last Answer : they do not generate magnetic fields