WGU D413 TELECOMMUNICATIONS NEWLY UPDATED COLLECTION OF EXAM QUESTIONS AND VERIFIED ANSWERS DESIGNED TO GUARANTEE YOUR SUCCESS ON THE LATEST TEST VERSION

WGU D413 TELECOMMUNICATIONS NEWLY UPDATED COLLECTION OF
EXAM QUESTIONS AND VERIFIED ANSWERS DESIGNED TO GUARANTEE
YOUR SUCCESS ON THE LATEST TEST VERSION




1. What is telecommunications?
o A) Computer programming
o B) The transmission of information over distances
o C) Hardware manufacturing
o D) Database management
o Answer: B
2. Which of the following is NOT a component of a basic
communication system?
o A) Transmitter
o B) Medium
o C) Compiler
o D) Receiver
o Answer: C
3. What does bandwidth refer to?
o A) The physical width of a cable
o B) The range of frequencies a channel can carry
o C) The speed of light
o D) The power consumption of a device
o Answer: B
4. What is attenuation?
o A) Signal amplification
o B) Signal weakening over distance
o C) Signal encryption
o D) Signal routing
o Answer: B
5. What is noise in telecommunications?
o A) Audio interference only
o B) Unwanted signals that interfere with transmission
o C) Background music
o D) Data compression
o Answer: B
6. What is the Nyquist theorem used for?
o A) Calculating network costs

, o B) Determining minimum sampling rate for analog signals
o C) Measuring signal strength
o D) Encrypting data
o Answer: B
7. What does Shannon's theorem describe?
o A) Maximum error rate
o B) Maximum data rate of a channel given bandwidth and noise
o C) Minimum cable length
o D) Optimal antenna height
o Answer: B
8. What is modulation?
o A) Varying a carrier signal to encode information
o B) Filtering noise
o C) Amplifying signals
o D) Routing packets
o Answer: A
9. Which type of modulation varies the amplitude of the carrier?
o A) FM
o B) PM
o C) AM
o D) QAM
o Answer: C
10.What does FM stand for?
o A) Fast Modulation
o B) Frequency Modulation
o C) Fixed Modulation
o D) Forward Modulation
o Answer: B
11.What is multiplexing?
o A) Combining multiple signals onto one medium
o B) Splitting one signal into many
o C) Encrypting data
o D) Routing packets
o Answer: A
12.What does FDM stand for?
o A) Fast Data Multiplexing
o B) Frequency Division Multiplexing
o C) Forward Division Multiplexing
o D) Fixed Data Method
o Answer: B
13.In TDM, what is divided among users?
o A) Frequency
o B) Power

, o C) Time slots
o D) Space
o Answer: C
14.What is a decibel (dB)?
o A) A unit of frequency
o B) A logarithmic unit for measuring signal ratios
o C) A measure of cable length
o D) A type of connector
o Answer: B
15.What is the relationship between frequency and wavelength?
o A) Directly proportional
o B) Inversely proportional
o C) No relationship
o D) Exponentially related
o Answer: B
16.What is simplex communication?
o A) Two-way simultaneous
o B) One-way only
o C) Two-way alternating
o D) Encrypted communication
o Answer: B
17.What is half-duplex communication?
o A) One-way only
o B) Two-way simultaneous
o C) Two-way but only one direction at a time
o D) No communication
o Answer: C
18.What is full-duplex communication?
o A) One-way only
o B) Two-way alternating
o C) Two-way simultaneous
o D) Broadcast only
o Answer: C
19.What is a baseband signal?
o A) A modulated signal
o B) An original signal at its original frequency range
o C) An amplified signal
o D) A digital signal only
o Answer: B
20.What is a broadband signal?
o A) A narrow frequency range signal
o B) A signal using a wide frequency range
o C) An unmodulated signal