DIGITAL TECHNICIAN CONVENTIONAL 100% CORRECT ANSWERS | ESTUDY LATEST, ALL ANSWERED 2024
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Course
Digital technician
Institution
Digital Technician
DIGITAL TECHNICIAN CONVENTIONAL 100%
CORRECT ANSWERS | ESTUDY LATEST, ALL
ANSWERED 100%
1. Why do digital modulation channels have measurable analog parameters?
- A) They are based on digital signals only.
- B) They modulate an analog RF carrier with digital data.
- C) They operate solely ...
DIGITAL TECHNICIAN CONVENTIONAL 100%
CORRECT ANSWERS | ESTUDY LATEST, ALL
ANSWERED 100%
1. Why do digital modulation channels have measurable analog parameters?
- A) They are based on digital signals only.
- B) They modulate an analog RF carrier with digital data.
- C) They operate solely in digital formats.
- D) They have no relation to analog signals.
- **ANSWER:** B) They modulate an analog RF carrier with digital data.
2. Which was the first version of the Data Over Cable Service Interface Specification (DOCSIS) that
allowed multiple downstream and upstream channels to be utilized to transfer data to and from a single
modem?
- A) DOCSIS 1.0
- B) DOCSIS 2.0
- C) DOCSIS 3.0
- D) DOCSIS 4.0
- **ANSWER:** C) DOCSIS 3.0
3. Which generation of wireless access technology is operating in the millimeter frequency band around
30 GHz being recognized as?
- A) 4G for the fourth generation
- B) 5G for the fifth generation
,ESTUDY
- C) 6G for the sixth generation
- D) 3G for the third generation
- **ANSWER:** B) 5G for the fifth generation.
4. Which is the only 802.11 series of standards that functions at 900 MHz for dependable, slower-
throughput connectivity with Internet of Things (IoT) devices in the customer's residence?
- A) 802.11a
- B) 802.11b
- C) 802.11g
- D) 802.11ah
- **ANSWER:** D) 802.11ah
5. Voice-activated personal assistants are always listening for commands but are programmed to react
only when detecting what?
- A) A signal
- B) A keyword
- C) A phrase
- D) A wake word, such as the assistant's name
- **ANSWER:** D) A wake word, such as the assistant's name.
6. What technology is plain old telephone service (POTS) built upon?
- A) Packet switching
- B) Circuit switching
- C) Frame relay
- D) VoIP
- **ANSWER:** B) Circuit switching.
, ESTUDY
7. Why is the transmission control protocol (TCP) unsuitable for voice over Internet protocol (VoIP)
applications?
- A) TCP is too fast.
- B) TCP adds delays from sequencing, error correction, acknowledgments, etc., which are
unacceptable for a quality phone call.
- C) TCP is outdated.
- D) TCP cannot support voice data.
- **ANSWER:** B) TCP adds delays from sequencing, error correction, acknowledgments, etc., which
are unacceptable for a quality phone call.
8. What does a cell phone seek when it tunes to its control channel frequency?
- A) The access code
- B) The system identification code (SID) assigned to the phone
- C) The channel frequency
- D) The service provider's signal
- **ANSWER:** B) The system identification code (SID) assigned to the phone.
9. How is the perception of three-dimensional high-definition TV (3D HDTV) created?
- A) By displaying an image from a single angle
- B) By displaying an image from two slightly different perspectives, like a pair of human eyes
- C) By using color filters
- D) By adjusting brightness levels
- **ANSWER:** B) By displaying an image from two slightly different perspectives, like a pair of human
eyes.
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