Structures

Question 1

What are the Boolean operators

Answer 1

Not
And
Or

Question 2

What is NOT’s function

Answer 2

NOT is a unary operator, it is applied to only one value and inverts it:
-not true = false
-not false = true

Question 3

What is AND’s function

Answer 3

AND yields TRUE only if both values are TRUE
-false AND false = false
-false AND true = false
-true AND false = false
-true AND true = true

Question 4

What is OR’s function?

Answer 4

OR yields TRUE if at least one value is TRUE
-true OR true = true
-true OR false = true
-false OR true = true
-false OR false = false

Question 5

What are the 2 types of loops?

Answer 5

Pre test loop
Post test loop

Question 6

What are the 2 types of Pre Test Loops and Post Test Loops?

Answer 6

Counter
Sentinel

Question 7

When are Counters and Accumulators used?

Answer 7

Counters and Accumulators are used within a repetition structure to calculate totals, subtotals, and averages.

Question 8

What must be done to all Counters and Accumulators?

Answer 8

All Counters and Accumulators must be Initialized and Updated

Question 9

What is Initializing?

Answer 9

Initializing is assigning a beginning value to a variable
(typically, but not always, 0)

Question 10

When is initialization usually performed and why?

Answer 10

Initialization is usually performed outside the loop body, and this is because it only needs to be done once

Question 11

What is Updating?

Answer 11

Updating is adding a number to the value stored in a variable

Question 12

What are Counters updated by?

Answer 12

Counters are updated by a Constant Value

Question 13

What are Accumulators updated by?

Answer 13

Accumulators are updated by an amount that varies