Quiz 2 MTA S2 Mac 2022

Multimedia distributed over wires, glass fibers, or air waves on a network requires large amount of

• overhead

• processing power

• bandwith

• disk space

Which of the following types of compression makes the file smaller by reducing quality?

• minimize

• lossy

• lossless

• reduce

Select Types of communication media

• Twisted and coaxial cables

• Bluetooth

• wired and wireless

• duplex

What are the main reasons to compress data? 

i)  to reduce secondary storage space

ii) To maximise the available RAM memory

iii)To speed up network transmission times

iv) To reduce packet congestion on networks

v) To optimise the data

• i, ii and iii

• ii, iii, iv

• i, iii, iv

• i, ii, iv

Analog video can be divided into two type which is ________________ video and _________________ video

• composite, conversion

• composite , component

• component , comprehensive

• conversion, comprehensive

WWW and VoD are examples of

• Conversational service

• Retrieval service

• Distributed service

• Collection service

Milan took a photograph with her high resolution digital camera. Then, she emailed a copy of the picture to herself to use in a school project. When Milan downloaded the picture from her email, she noticed that it did not look as crisp and the colors were not exactly the same. Which of the following could be a possible explanation for difference in image quality?

• The picture saved in the email was encrypted. Data encryption causes information loss.

• The picture saved in the email contained more pixels than the original image.

• The picture saved in the email was encrypted. Milan needs to decrypt the picture to restore the original image quality.

• The picture saved in the email contained fewer pixels than the original image.

Which one below is NOT an analog broadcast video standard?

• NTSC

• SECAM

• PAL

• HDTV

What is Frame Rate?

• Non-digital video signals transmit information continuously in the form of a wave

• Phase Alternating Line standard mostly used overseas, 25 frames are transmitted each second

• Speed at which video frames appears on a screen; measured by FPS

• Moving images that have been captured, created, or edited electronically

__________ starts playback as soon as enough data has transferred to the user’s computer to sustain this playback

• Playing video

• Recording video

• Playback video

• Streaming video