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COSC 2436 ALL CHAPTER FINAL EXAM QUESTIONS AND ANSWERS
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COSC 2436 ALL CHAPTER FINAL EXAMQUESTIONS AND ANSWERS
The devices that feed data and programs into computers are called ____ devices. -
Answer -input
____ represent information with a sequence of 0s and 1s. - Answer -Digital signals
A sequence of eight bits is called a___________. - Answer -byte
The term GB refers to ___. - Answer -gigabyte
consists of 65,536 characters. - Answer -Unicode
A program called a(n) ____ combines the object program with the programs from
libraries. - Answer -linker
____ is a valid char value. - Answer -'A'
An example of a floating point data type is ____. - Answer -double
The length of the string "computer science" is ____. - Answer -16
In a C++ program, one and two are double variables and input values are 10.5 and
30.6. After the statement cin >> one >> two; executes, ____. - Answer -one = 10.5, two
= 30.6
Which of the following is the newline character? - Answer -\n
Suppose that x is an int variable and y is a double variable and the input is:
10 20.7
Choose the values after the following statement executes: cin >> x >> y;. - Answer -x =
10, y = 20.7
Suppose that alpha is an int variable and ch is a char variable and the input is:
17 A
What are the values after the following statements execute?
cin >> alpha;
cin >> ch; - Answer -alpha = 17, ch = 'A'
,Suppose that ch1, ch2, and ch3 are variables of the type char and the input is:
AB
C
Choose the value of ch3 after the following statement executes:
cin >> ch1 >> ch2 >> ch3; - Answer -'C'
Suppose that x is an int variable, ch is a char variable, and the input is:
276.
Choose the values after the following statement executes:
cin >> ch >> x; - Answer -ch = '276', x = '.'
Suppose that alpha, beta, and gamma are int variables and the input is:
100 110 120
200 210 220
300 310 320
What is the value of gamma after the following statements execute?
cin >> alpha;
cin.ignore(100, '\n');
cin >> beta;
cin.ignore(100,'\n');
cin >> gamma; - Answer -300
Suppose that ch1 and ch2 are char variables and the input is:
WXYZ
What is the value of ch2 after the following statements execute?
cin >> ch1;
ch2 = cin.peek();
cin >> ch2; - Answer -X
Manipulators without parameters are part of the ____ header file. - Answer -iostream
Consider the following program segment.
ifstream inFile; //Line 1
int x, y; //Line 2
... //Line 3
inFile >> x >> y; //Line 4
Which of the following statements at Line 3 can be used to open the file progdata.dat
and input data from this file into x and y at Line 4? - Answer -
inFile.open("progdata.dat");
Suppose that ch1 and ch2 are char variables, alpha is an int variable, and the input is:
A 18
What are the values after the following statement executes?
cin.get(ch1);
,cin.get(ch2);
cin >> alpha; - Answer -ch1 = 'A', ch2 = ' ', alpha = 18
The expression in an if statement is sometimes called a(n) ____. - Answer -decision
maker
What is the output of the following C++ code?
int x = 35;
int y = 45;
int z;
if (x > y)
z = x + y;
else
z = y - x;
cout << x << " " << y << " " << z << endl; - Answer -35 45 10
When one control statement is located within another, it is said to be ____. - Answer -
nested
What is the output of the following code?
if (6 > 8)
{
cout << " ** " << endl ;
cout << "****" << endl;
}
else if (9 == 4)
cout << "***" << endl;
else
cout << "*" << endl; - Answer -*
Assume you have three int variables: x = 2, y = 6, and z. Choose the value of z in the
following expression: z = (y / x > 0) ? x : y;. - Answer -2
What is the output of the following code?
char lastInitial = 'A';
switch (lastInitial)
{
case 'A':
cout << "section 1" <<endl;
break;
, case 'B':
cout << "section 2" <<endl;
break;
case 'C':
cout << "section 3" <<endl;
break;
case 'D':
cout << "section 4" <<endl;
break;
default:
cout << "section 5" <<endl;
}
SECTION 1
What is the output of the following code?
char lastInitial = 'A';
switch (lastInitial)
{
case 'A':
cout << "section 1" <<endl;
break;
case 'B':
cout << "section 2" <<endl;
break;
case 'C':
cout << "section 3" <<endl;
break;
case 'D':
cout << "section 4" <<endl;
break;
default:
cout << "section 5" <<endl;
}
int x = 55;
int y = 5;
switch (x % 7)
{
case 0:
case 1:
y++;
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