Computer And Information Technology: Quiz!
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- 1.The structure that allows you to write one set of instructions that operates on multiple, separate sets of data is the _____.
- A.
Loop
- B.
Sequence
- C.
Selection
- D.
Case
- 2.Every structured loop _____.
- A.
Has one entry point
- B.
Has two exit points
- C.
Refers to a counter that increases on each pass through the loop
- D.
Contains a body that must execute at least one time
- 3.Which of the following is not a step that must occur with every correctly working loop?
- A.
Set the loop control value equal to a sentinel during each iteration.
- B.
Initialize a loop control variable before the loop starts.
- C.
Compare the loop control value to a sentinel during each iteration.
- D.
Alter the loop control variable during each iteration.
- 4.The statements executed within a loop are known collectively as the _____.
- A.
Loop body
- B.
Loop controls
- C.
Sequences
- D.
Sentinels
- 5.A counter keeps track of _____.
- A.
The number of times an event has occurred
- B.
The number of machine cycles required by a segment of a program
- C.
The number of loop structures within a program
- D.
The number of times software has been revised
- 6.Adding 1 to a variable is also called _____ it.
- A.
Incrementing
- B.
Decrementing
- C.
Resetting
- D.
Digesting
- 7.Which of the following is an indefinite loop?
- A.
A loop that follows a prompt that asks a user how many repetitions to make and uses that value to control the loop
- B.
A loop that executes exactly 10 times
- C.
Both of the above
- D.
None of the above
- 8.Which of the following is a definite loop?
- A.
A loop that executes 1000 times
- B.
A loop that executes as long as a user continues to enter valid data
- C.
Both of the above
- D.
None of the above
- 9.When you decrement a variable, you _____.
- A.
Subtract 1 from it
- B.
Set it to 0
- C.
Reduce it by one-tenth
- D.
Remove it from a program
- 10.When two loops are nested, the loop that is contained by the other is the _____ loop.
- A.
Inner
- B.
Captive
- C.
Unstructured
- D.
Outer
- 11.When loops are nested, _____.
- A.
None of the above
- B.
Both must be the same type—definite or indefinite
- C.
One must end before the other begins
- D.
They typically share a loop control variable
- 12.The chief advantage to using a for loop is _____.
- A.
Its syntax is concise
- B.
Infinite loops are prevented
- C.
Unlike a while loop, a for loop can be nested
- D.
Unlike a while loops, a for loop can have multiple entry and exit points
- 13.A report that lists only totals, with no details about individual records, is a(n) _____ report.
- A.
Summary
- B.
Accumulator
- C.
Final
- D.
Detailless
- 14.Typically, the value added to a counter variable is _____.
- A.
1
- B.
0
- C.
10
- D.
100
- 15.Typically, the value added to an accumulator variable is _____.
- A.
Different in each iteration
- B.
The same for each iteration
- C.
1
- D.
0
- 16.After an accumulator or counter variable is displayed at the end of a program, it is best to _____.
- A.
None of the above
- B.
Subtract 1 from the variable
- C.
Reset the variable to 0
- D.
Delete the variable from the program
- 17.When you _____, you make sure data items are the correct type and fall within the correct range.
- A.
Validate data
- B.
Employ offensive programming
- C.
Use object orientation
- D.
Count loop iterations
- 18.Overriding a user’s entered value by setting it to a predetermined value is known as ______.
- A.
Forcing
- B.
Accumulating
- C.
Validating
- D.
Pushing
- 19.To ensure that a user’s entry is the correct data type, frequently you ______.
- A.
Use a method built into the programming language
- B.
Prompt the user to verify that the type is correct
- C.
Include a statement at the beginning of the program that lists the data types allowed
- D.
All of the above
- 20.Variables might hold incorrect values even when they are _____.
- A.
All of the above
- B.
Coded by the programmer rather than input by a user
- C.
Within a required range
- D.
The correct data type
Questions: 15 | Attempts: 171812 | Last updated: Dec 21, 2021
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