Chapter 54 - Selection

Question 1

What is sequence?

Answer 1

» Executing instructions one after another

Question 2

What is assignment?

Answer 2

» A value is assigned to a variable

Question 3

What is another name for selection?

Answer 3

» Branching

Question 4

What is selection?

Answer 4

» Branching is where a decision as to which part of the program is to be run is made - based on the state of a Boolean expression

Question 5

What does > mean?

Answer 5

» Greater than

Question 6

What does < mean?

Answer 6

» Less than

Question 7

What does <= mean?

Answer 7

» Less than or equal

Question 8

What does >= mean?

Answer 8

» Greater than or equal to

Question 9

What does != mean?

Answer 9

» Not equal

Question 10

What are the features of if/else statements?

Answer 10

» Present a Boolean condition and a block of code that is run if the condition is true

Question 11

When is switch/case statements useful?

Answer 11

» When a choice has to be made between several alternatives

Question 12

How can you start of a switch/case statement?

Answer 12

» switch x:
case “what ever the case is” :
case “etc..” :

Question 13

What is the defauly statement in a swich/case statement?

Answer 13

» It runs if none of the cases is true, same as else

Question 14

What does BRA mean?

Answer 14

» Branch always

Question 15

What dose BRP mean?

Answer 15

» Branch if the value in the accumulator is positive

Question 16

What is the order in which boolean operators are executed in?

Answer 16

» NOT
» AND
» OR

Question 17

What does XOR stand for?

Answer 17

» Exclusive OR
» Which means either a or b but not both