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    2.  
  2. PEARSON (PEARSON)
    3.  
  3. Information Technology 2016/2017 NQF
    4.  
  4. Unit 1 - Information Technology Systems

Summary

Summary Notes for the Real Exam

These are notes theat were used for the final Exam.

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  • Unit 1
  • October 31, 2021
  • 2
  • 2019/2020
  • Summary

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Some examples from this set of practice questions

1.

What are the Advantages and Disadvantages of AVI?

Answer: Provides higher quality video. Not used for streaming due to its size.

2.

What are the Advantages and Disadvantages of MP4?

Answer: Widely used for streaming. Must recognize both video and audio in order to play.

3.

Lossy compression?

Answer: Reduces the size of a file but also the quality of the file.

4.

Lossless Compression?

Answer: Reduces the size of a file but keeps the quality the same.

5.

Bandwidth?

Answer: The rate of data packets being transferred over a network.

6.

Latency?

Answer: The time delay for the data packets to transfer to its destination.

7.

Codec?

Answer: A device or program that compresses data for faster transmission (Streaming).

8.

Forums?

Answer: Online discussion sites.

9.

Blogs?

Answer: Regularly updated website used by a business to share up to date information.

10.

APSTNDP layers (Open Systems Interconnection Layers)?

Answer: Application, Presentation, Session, Transportation, Network, Data link, Physical.

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