COMPUTER NETWORKING

MULTIMEDIA AND QUALITY OF SERVICE

MULTIMEDIA IN THE INTERNET

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the minimum resolution required for a video to be considered as high definition (HD)?
A
640 x 360
B
720 x 480
C
1024 x 768
D
1280 x 720
Explanation: 

Detailed explanation-1: -This is the lowest resolution to still be considered HDTV and is often called simply “HD.” Most videos are shot in at least 1080, but 720 (1280 x 720 pixels) can be an acceptable resolution for smaller web content.

Detailed explanation-2: -Therefore, a screen with 1280×720 resolution will have more width and less height. This resolution is referred to as High-Definition(HD) quality. The aspect ratio for this resolution is 16:9. This resolution is suitable for regular works on computer monitors including watching photos and videos.

Detailed explanation-3: -720p resolution is another example of standard high-definition television. With 720p P&A television has a total of 1280 horizontal pixels and 720 vertical pixels. The aspect ratio for a 720p television is 16:9.

Detailed explanation-4: -SD is any resolution lower than 720p (1280 x 720). 1280 x 800 is considered HD, but is a non-standard resolution, so for some programs, you may see a black bar along the bottom of the screen, such as when running a 720p video full screen.

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