Transmission Media - MCQs

Posted by Froyd Wess at 5:35 PM
Hits:
Multiple choice questions for Transmission Media
In this particular topic you have learned the two the two broad categories of bandwidth utilization: multiplexing and spreading. If you skip the summary visit Transmission Media which can be broadly defined as anything that can carry information from a source to a destination.

Begin and Good luck!

  1. When the angle of incidence is _______ the critical angle, the light beam bends along the interface.
    • A)   less than
    • B)   equal to
    • C)   more than
    • D)   none of the above
  2. Transmission media lie below the _______ layer.
    • A)   application
    • B)   transport
    • C)   network
    • D)   physical
  3. _________ cable consists of an inner copper core and a second conducting outer sheath.
    • A)   Twisted-pair
    • B)   Shielded twisted-pair
    • C)   Coaxial
    • D)   Fiber-optic
  4. __________ consists of a central conductor and a shield.
    • A)   Twisted-pair
    • B)   Coaxial
    • C)   Fiber-optic
    • D)   none of the above
  5. _______ cable can carry signals of higher frequency ranges than _______ cable.
    • A)   Coaxial; twisted-pair
    • B)   Twisted-pair; fiber-optic
    • C)   Coaxial; fiber-optic
    • D)   none of the above
  6. _________ are used for cellular phone, satellite, and wireless LAN communications.
    • A)   Radio waves
    • B)   Infrared waves
    • C)   Microwaves
    • D)   none of the above
  7. The inner core of an optical fiber is _______ in composition.
    • A)   copper
    • B)   glass or plastic
    • C)   bimetallic
    • D)   liquid
  8. What is the major factor that makes coaxial cable less susceptible to noise than twisted-pair cable?
    • A)   insulating material
    • B)   inner conductor
    • C)   diameter of cable
    • D)   outer conductor
  9. Signals with a frequency below 2 MHz use _______ propagation.
    • A)   line-of-sight
    • B)   sky
    • C)   ground
    • D)   none of the above
  10. In an optical fiber, the inner core is _______ the cladding.
    • A)   less dense than
    • B)   denser than
    • C)   the same density as
    • D)   another name for
  11. ________ cable consists of two insulated copper wires twisted together.
    • A)   Twisted-pair
    • B)   Coaxial
    • C)   Fiber-optic
    • D)   none of the above
  12. In fiber optics, the signal is _______ waves.
    • A)   radio
    • B)   light
    • C)   infrared
    • D)   very low-frequency
  13. Signals with a frequency above 30 MHz use _______propagation.
    • A)   line-of-sight
    • B)   sky
    • C)   ground
    • D)   none of the above
  14. A parabolic dish antenna is a(n) _______ antenna.
    • A)   unidirectional
    • B)   bidirectional
    • C)   omnidirectional
    • D)   horn
  15. A(n) _______ medium provides a physical conduit from one device to another.
    • A)   unguided
    • B)   guided
    • C)   either (a) or (b)
    • D)   none of the above
  16. ________ cable is used for voice and data communications.
    • A)   Twisted-pair
    • B)   Coaxial
    • C)   Fiber-optic
    • D)   none of the above
  17. Signals with a frequency between 2 MHz and 30 MHz use _______ propagation.
    • A)   ground
    • B)   line-of-sight
    • C)   sky
    • D)   none of the above
  18. Transmission media are usually categorized as _______.
    • A)   determinate or indeterminate
    • B)   fixed or unfixed
    • C)   guided or unguided
    • D)   metallic or nonmetallic
  19. ________ are used for short-range communications such as those between a PC and a peripheral device.
    • A)   Radio waves
    • B)   Infrared waves
    • C)   Microwaves
    • D)   none of the above
  20. _________ media transport electromagnetic waves without the use of a physical conductor.
    • A)   Guided
    • B)   Unguided
    • C)   Either (a) or (b)
    • D)   None of the above
  21. ________ cables are composed of a glass or plastic inner core surrounded by cladding, all encased in an outside jacket.
    • A)   Twisted-pair
    • B)   Coaxial
    • C)   Fiber-optic
    • D)   none of the above
  22. Which of the following primarily uses guided media?
    • A)   radio broadcasting
    • B)   satellite communications
    • C)   local telephone system
    • D)   cellular telephone system
  23. When a beam of light travels through media of two different densities, if the angle of incidence is greater than the critical angle, _______ occurs.
    • A)   refraction
    • B)   reflection
    • C)   criticism
    • D)   incidence
  24. Which of the following is not a guided medium?
    • A)   fiber-optic cable
    • B)   coaxial cable
    • C)   twisted-pair cable
    • D)   atmosphere
  25. Microwaves are _________.
    • A)   omnidirectional
    • B)   bidirectional
    • C)   unidirectional
    • D)   none of the above
  26. ________ cables carry data signals in the form of light.
    • A)   Twisted-pair
    • B)   Coaxial
    • C)   Fiber-optic
    • D)   none of the above
  27. Radio waves are _________.
    • A)   unidirectional
    • B)   omnidirectional
    • C)   bidirectional
    • D)   none of the above
  28. In a fiber-optic cable, the signal is propagated along the inner core by _______.
    • A)   refraction
    • B)   reflection
    • C)   modulation
    • D)   none of the above

Back to Homepage

Note: Check your works. Transmission Media - MCQs Answers

credit: Behrouz A. Forouzan©2013 www.FroydWess.com
Share Note :

Stay Connected To Get Free Notes!

Subscribe via Email

Follow me!

adsense code here

0 comments: Post Yours! Read Comment Policy ▼
PLEASE NOTE:
I have Zero Tolerance to Spam. It will be deleted immediately upon review.

Post a Comment

 

© 2013 - 2014. All Rights Reserved | FroydWess - Notes, Lectures, Exams, Quizzes, PPT, MCQs | Customized by MovieOnMovie

Home | | | Top