This set of Video Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Digital Terrestrial Television (DTT) and Video on Demand (VOD)”.
1. What is the full form of DTT?
a) Direct Television Transmission
b) Direct Television Transform
c) Digital Terrestrial Television
d) Digital Telephone Transmission
Explanation: DTT stands for Digital Terrestrial Television or Digital Terrestrial Transmission. It refers to the broadcasting of terrestrial (earthy) television in digital format. Digital transformation began before around two decades, after the invention of digital TV receivers to produce high quality pictures and stereo sound output.
2. Digital Terrestrial Television (DTT) is used widely.
Explanation: Digital Terrestrial television transmission is not used widely because of rapid expansion of television transmission using satellite and quickly switching from analog to digital version. A solution is found where simultaneous transmission of the programs in analog and digital modes is done. The users can afford the expensive TV receiver and the costly converters use the DTT.
3. In which of the following system the user can select a program of his/her choice and watch and listen to video and audio?
a) VOD (Video on Demand)
b) DTT (Digital Terrestrial Television)
c) Digital TV
d) Direct to home satellite television
Explanation: Video on Demand (VOD) is a type of system in which the user can select a program of his/her choice and watch and listen to video and audio. Video on Demand can work in a wide geographic region or even a satellite based network. Video on demand system provides the user with all features of common media and DVD players.
4. The VOD system consists of standard TV receiver and a Set Top Box.
Explanation: Video on Demand is an interface TV technology that allows subscriber to view programs or download the programs or view them later. The VOD (Video on Demand) system consists of standard TV receiver and a Set Top Box (STB). Nowadays, the use of internet is an increasingly popular form of VOD.
5. In which country was the first VOD service launched?
a) Hong Kong
d) United States
Explanation: The first VOD services were launched in Hong Kong in early 1990’s. In 2000, the United States was the first to use VOD (Video on Demand) through the cable connection. That’s why VOD historically suffered from a lack of available bandwidth. VOD can be used in educational institutes and banking applications.
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