Programming Essential Questions

  

1.
Which language does a computer know?
A) Java
B) C++
C) high-level
D) machine language
2.
What is the answer for the following operation: (3+5) *
10 – 4/8
A) 79.5
B) 9.5
C) 47.7
D) 76
3.
A noun would be a good choice for a variable or constant identifier.
A) True
B) False
4.
____ a data item means you override incorrect data by
setting the variable to a specific value.
A) Forcing
B) Incrementing
C) Initializing
D) Terminating
5.
An algorithm is the sequence of steps necessary to solve
a problem.
A) True
B) False
6.
Misuse of a language’s grammar rules is called a(n) ____
error.
A) illegal
B) logical
C) syntax
D) semantic
7.
An AND decision can be constructed using a ____ decision.
A) nested
B) stacked
C) combined
D) dual
8.
A loop control variable’s value is tested to control the
loop’s execution.
A) True
B) False
9.
When you combine AND and OR operators within the same
statement, the AND operators take precedence.
A) True
B) False
10.
The piece of hardware that performs processing tasks is
the central data unit.
A) True
B) False
11.
In the following statement, which operation is done
third?answer = a + b + c * d / e – f
A) a+b
B) b+c
C) e-f
D) d/e
12.
All of the variables in an array have the same name and
data type but are differentiated with special numbers called subscripts.
A) True
B) False
13.
Many programming languages allow you to use ____ to force
an expression to evaluate first.
A) a pound sign
B) an asterisk
C) parentheses
D) quotation marks
14.
To use computer programs, you must first load them into
memory.
A) True
B) False
15.
When using the OR operator, an action is taken when at
least one of the comparisons evaluates to true.
A) True
B) False
16.
The body of a loop can contain only a limited number of
statements.
A) True
B) False
17.
What would be the output of the following expression if
the temperature outside is 30 degrees?
If temperature >=35 and temperature <= 55 then   output “it is cold outside” else output “The weather is nice today” A) The weather is nice today B) The temperature is 45 C) it is cold outside D) none of the above 18. The ____ variable is initialized before entering the loop. A) loop ending B) ending control C) interrupt control D) loop control 19. The two major components of any computer system are its hardware and its software. A) True B) False 20. A variable declaration is a statement that provides a data type and identifier for a variable A) True B) False 21. What will be the value stored in the variable total when the following code completes executing: count = num total = num = 0 For count = 1 to 10   total = total + count endfor A) 10 B) 55 C) 45 D) 0 22. Program comments are nonexecuting statements. A) True B) False 23. An error commonly made by beginning programmers is to forget that array subscripts start with the integer 1. A) True B) False 24. The selection structure is also called an if-then structure. A) True B) False 25. What operator has the lowest precedence? A) + B) / C) * D) =

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