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

1 Answer

Answer :

A. single-mode step-index

Related questions

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

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

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

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

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

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

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

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

Description : A type of index of an optical fiber that has no cladding and whose central core has a non-uniform refractive index. ∙ A. graded index ∙ B. multimode ∙ C. single mode ∙ D. step-index

Last Answer : ∙ A. graded index

Description : A type of index profile of an optical fiber that has a central core and outside cladding with a uniform refractive index ∙ A. multimode ∙ B. graded index ∙ C. step-index ∙ D. single mode

Last Answer : ∙ C. step-index

Description : What type of fiber has the highest modal dispersion? ∙ a. Step-index multimode ∙ b. Graded index multimode ∙ c. Step-index single mode ∙ d. Graded index mode

Last Answer : a. Step-index multimode

Description : Only one path for light rays to take down the fiber ∙ A. Multimode ∙ B. Step-index ∙ C. Single mode ∙ D. Graded index

Last Answer : C. Single mode

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

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

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 : c. Single-mode graded-index

Description : More than one path for light rays to take down the fiber ∙ A. Multimode ∙ B. Step-index ∙ C. Single mode

Last Answer : A. Multimode

Description : How can modal dispersion reduced entirely? ∙ A. Use a graded index fiber ∙ B. Use a single-mode fiber ∙ C. Use a monochromatic light source ∙ D. Use a very sensitive light detector

Last Answer : Use a single-mode fiber

Description : The graded-index multimode optical fiber has a core diameter of _____ nm. ∙ a. 0.5 ∙ b. 0.05 ∙ c. 0.0005 ∙ d. 5

Last Answer : ∙ a. 0.5

Description : A step-index multimode optical fiber has a core diameter of _____ nm. ∙ a. 0.02 ∙ b. 0.2 ∙ c. 2 ∙ d. 0.002

Last Answer : b. 0.2

Description : What type of fiber has the highest modal dispersion? a. Step-index multimode b. Graded index multimode c. Step-index single mode d. Graded index mode

Last Answer : a. Step-index multimode

Description : Type of fiber that has the highest modal dispersion A. Step-index multimode B. Step-index single mode C. Graded index mode D. Graded index multimode

Last Answer : A. Step-index multimode

Description : One of the following is among the types of fiber optics used in electronics communication. A. Step-index multimode B. Graded-index multimode C. Semi-graded multimode D. Single mode

Last Answer : C. Semi-graded multimode

Description : Define the term multimode fiber,step index fiber,Graded index fiber and single mode fiber. 

Last Answer : Multimode fiber: A fiber having core radius large,supports hundreads of modes & lesser bandwidth also suitable for short distance communication is called Multi mode fiber.  Step index ... & larger bandwidth also suitable for long distance communication is called single mode fiber.

Description : Single-mode step-index cable has a core diameter in the range of ∙ A. 100 to 1000 micrometer ∙ B. 50 to 100 micrometer ∙ C. 2 to 15 micrometer ∙ D. 5 to 20 micrometer

Last Answer : . 2 to 15 micrometer

Description : Chromatic dispersion can be eliminated by __________. ∙ A. using a monochromatic light source ∙ B. using a very small numerical aperture fiber ∙ C. using a graded-index fiber ∙ D. using a very sensitive photo detector

Last Answer : A. using a monochromatic light source

Description : How many modes possible with a multimode step-index with a core diameter of 50 um, a core refractive index of 1.6, a cladding refractive index of 1.584, and a wavelength of 1300 nm. ∙ A. 456 ∙ B. 213 ∙ C. 145 ∙ D. 372

Last Answer : D. 372

Description : It refers to the abrupt of change in refractive index from core to clad ∙ A. step index ∙ B. graded index ∙ C. semi-graded index ∙ D. half step index

Last Answer : ∙ A. step index

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

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

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

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

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

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

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

Description : In multimode fiber, ____________________ index has less dispersion than step index.

Last Answer : graded

Description : List the standard core sizes for multimode step-index, multimode graded-index, and single mode fibers

Last Answer : Multimode step-index fibers: 50µm and 100µm. Multimode graded-index fibers: 50µm, 62.5µm, 85µm, and 100µm. Single mode fibers: between 8µm and 10µm.

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

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

Last Answer : B. glass

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

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

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

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

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

Last Answer : b. Glass

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

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

Description : It is a graphical representation of the magnitude of the refractive index across the fiber. ∙ A. mode ∙ B. index profile ∙ C. numerical aperture ∙ D. refractive index

Last Answer : B. index profile

Description : Multimode optical fibers can have a step-index or graded index refractive index profile. Which fiber, multimode step-index or multimode graded-index fiber, usually performs better?

Last Answer : Multimode graded-index fiber

Description : Optical cable testers are used for ∙ a. Checking refractive index ∙ b. Light power out of a fiber ∙ c. Non-calibrated light into a fiber

Last Answer : b. Light power out of a fiber