Standard Answers

Question 1

Methods of

defining algorithms

Answer 1

Flow charts, Structured English, Pseudo-code

Question 2

Steps of a Design Review

Answer 2

 Check the correspondence between a design and
its specification;
 Confirm that the most appropriate techniques have
been used;
 Confirm that the user interface is appropriate

Question 3

The problem of
ambiguity in voice
recognition

Answer 3

 Different words sound the same (too, to, two)
 The same word can mean different things
(command vs vocabulary dictation)

Question 4

Using XOR in

encryption

Answer 4

• Choose a key
• Apply XOR to the plain text with the key to obtain
cipher text
• To decode apply XOR to the cipher text to go back
to original plain text.