Exam Questions June 2015

Number Types
1. Nibbles is the smallest
2. Then bits is the next smallest
3. Then bytes is the next biggest
4. Then the next largest is kilobyte
ASCII
1. Character F is represented in binary by 110 0110
  1. Character G is represented in binary by 110 0111
Bitmap
1. Image which is in black and white which is displayed in 0's and 1's
  1. 0's are black
    1. 1's are white
2. Resolution can affect the quality of the picture
3. Picture quality can be affected by the file type, e.g jpeg due to compression of the file
Programming
1. Python is a programming language I am familiar with
2. Data Types
  1. Boolean is True/False
    1. Character is a single character
    2. Real data
  2. String is words joined together within a sentence
  3. Integer is for positive or negative numbers
  4. Data Structures
    1. 2D Array
Algorithms
1. An algorithm is a set of instructions that will return an output
  1. Algorithms 2 could be written better because once it has been matched it stops
    1. Purpose of algorithm 2 is it checks for a specific value
Variables
1. variables can be labelled 'i' as its an index for the array
2. The variable 'matched'is to check a specific value
  1. 'matched' is a boolean data type
Software Development Life Cycle
1. Waterfall Model/Waterfall
  1. Stage 1 is Analysis
    1. Stage 2 is Deisgn
      1. Stage 3 Implementation
        Stage 4 is Testing
2. V-Shaped Model
3. Spiral Model
4. Incremental Model
5. The basic model
Prototyping
1. Advantages
  1. Full-scale testing will crop up any problems the code may have
  2. More robust, will make the code more secure
  3. Gives early insight on future development
2. Disadvantages
  1. Costs time and money
    1. Less time on the actual code itself

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	Criado por Joe Anderson mais de 7 anos atrás