Question 1

Let x be an unsigned int on a machine with 4-byte unsigned ints. What effect does x>>=1; X<<=1; Have?

Accepted Answer

A)  There is no effect. 
B)  The leftmost bit of x is set to 0. 
C)  The rightmost bit of x is set to 0. 
D)  Both (b) and (c). 
A)  There is no effect. 
B)  The leftmost bit of x is set to 0. 
C)  The rightmost bit of x is set to 0. 
D)  Both (b) and (c). C

Question 2

The most basic unit of data on a computer is the:

Accepted Answer

A)  Bit. 
B)  Byte. 
C)  File. 
D)  int. 
A)  Bit. 
B)  Byte. 
C)  File. 
D)  int. A

Question 3

Structure variable declarations can be incorporated into a structure definition by placing a comma-separated list of variable names:

Accepted Answer

A)  After struct StructureName and before the left brace. 
B)  After the left brace and before the member declarations. 
C)  After the member declarations and before the right brace. 
D)  After the right brace and before the semicolon. 
A)  After struct StructureName and before the left brace. 
B)  After the left brace and before the member declarations. 
C)  After the member declarations and before the right brace. 
D)  After the right brace and before the semicolon. D

Question 4

The functions of the character-handling library typically manipulate characters as:

Accepted Answer

A)  ints 
B)  floats 
C)  longs 
D)  chars 
A)  ints 
B)  floats 
C)  longs 
D)  chars

Question 5

The strtol and stroul functions do not:

Accepted Answer

A)  Need a header file to be used. 
B)  Take three arguments. 
C)  Have the same return types. 
D)  Have the ability to return data in base 8. 
A)  Need a header file to be used. 
B)  Take three arguments. 
C)  Have the same return types. 
D)  Have the ability to return data in base 8.

Question 6

The advantages of using typedef do not include:

Accepted Answer

A)  Making programs more portable by allowing data types to be easily changed to meet system specifications. 
B)  Making type names shorter. 
C)  Making programs more readable. 
D)  Increasing the efficiency of accessing struct member variables. 
A)  Making programs more portable by allowing data types to be easily changed to meet system specifications. 
B)  Making type names shorter. 
C)  Making programs more readable. 
D)  Increasing the efficiency of accessing struct member variables.

Question 7

To change the string "ABCDEFGHI" to "aaaaaFGHI" you would use the _________ function.

Accepted Answer

A)  memset 
B)  memcmp 
C)  memchr 
D)  memcopy 
A)  memset 
B)  memcmp 
C)  memchr 
D)  memcopy

Question 8

The ___________ function allows characters of one part of a string to be copied into another, overlapping part of the same string.

Accepted Answer

A)  memchr 
B)  memcmp 
C)  memcpy 
D)  memmove 
A)  memchr 
B)  memcmp 
C)  memcpy 
D)  memmove

Question 9

Arrays are:

Accepted Answer

A)  Always passed by reference. 
B)  Passed by reference unless inside a structure. 
C)  Passed by reference unless their elements are structures. 
D)  Always passed by value. 
A)  Always passed by reference. 
B)  Passed by reference unless inside a structure. 
C)  Passed by reference unless their elements are structures. 
D)  Always passed by value.

Question 10

The main difference between the functions atof, atoi and atol is:

Accepted Answer

A)  Their return types. 
B)  Their arguments. 
C)  Their header files. 
D)  Their efficiency. 
A)  Their return types. 
B)  Their arguments. 
C)  Their header files. 
D)  Their efficiency.

Question 11

Assuming that string1 = "hello" and string2 = "hello world", which of the following returns 0?

Accepted Answer

A)  strcmp(string1, string2);. 
B)  strcmp(string1, string2, 6);. 
C)  Strncmp(string1, string2, 5);. 
D)  strncmp(string1, string2, 6);. 
A)  strcmp(string1, string2);. 
B)  strcmp(string1, string2, 6);. 
C)  Strncmp(string1, string2, 5);. 
D)  strncmp(string1, string2, 6);.

Question 12

Which is the proper way to create a built-in array of structure variables of type Data?

Accepted Answer

A)  MyArray Data[10] 
B)  Data MyArray[10]; 
C)  Data struct myArray[10]; 
D)  struct MyArray[Data]; 
A)  MyArray Data[10] 
B)  Data MyArray[10]; 
C)  Data struct myArray[10]; 
D)  struct MyArray[Data];

Question 13

__________ is not allowed.

Accepted Answer

A)  Accessing individual bits in a multi-bit bit field. 
B)  Padding a bit field with bits that cannot be accessed. 
C)  Having an unnamed bit field. 
D)  Having a bit field with a zero width. 
A)  Accessing individual bits in a multi-bit bit field. 
B)  Padding a bit field with bits that cannot be accessed. 
C)  Having an unnamed bit field. 
D)  Having a bit field with a zero width.

Question 14

Two structure variables of the same type with the same member values, when compared will:

Accepted Answer

A)  Always compare equally. 
B)  Never compare equally. 
C)  Sometimes compare equally. 
D)  Result in a compile error. 
A)  Always compare equally. 
B)  Never compare equally. 
C)  Sometimes compare equally. 
D)  Result in a compile error.

Question 15

Which of the following correctly copies the contents of string2 into string1? Assume that string2 is equal to "goodbye" and string1 is equal to "good morning"?

Accepted Answer

A)  strcpy(string1, string2);. 
B)  strcpy(string1, string2, 6);. 
C)  Strncpy(string1, string2, 5);. 
D)  strncpy(string1, string2, 6);. 
A)  strcpy(string1, string2);. 
B)  strcpy(string1, string2, 6);. 
C)  Strncpy(string1, string2, 5);. 
D)  strncpy(string1, string2, 6);.

Question 16

Which function would be the most useful for determining if a certain word is contained in a string representing a sentence?

Accepted Answer

A)  strcspn. 
B)  strchr. 
C)  strstr. 
D)  strrchr. 
A)  strcspn. 
B)  strchr. 
C)  strstr. 
D)  strrchr.

Question 17

Memcmp would return ___________ for the call memcmp("Hi, how are you?", "Hi, how are things?", 6).

Accepted Answer

A)  1 
B)  A positive number. 
C)  0 
D)  A negative number. 
A)  1 
B)  A positive number. 
C)  0 
D)  A negative number.

Question 18

Strtok does not:

Accepted Answer

A)  Replace each delimiting character with '\0'. 
B)  Return a pointer to the token it creates. 
C)  Completely tokenize the string the first time it is called. 
D)  Modify the input string. 
A)  Replace each delimiting character with '\0'. 
B)  Return a pointer to the token it creates. 
C)  Completely tokenize the string the first time it is called. 
D)  Modify the input string.

Question 19

The number of bits in a bit field is specified with:

Accepted Answer

A)  Parentheses as in bitfield(4) 
B)  A colon as in bitfield : 4 
C)  Brackets as in bitfield[4] 
D)  A dot as in bitfield.4 
A)  Parentheses as in bitfield(4) 
B)  A colon as in bitfield : 4 
C)  Brackets as in bitfield[4] 
D)  A dot as in bitfield.4

Question 20

Let Bit1 = Bit2 = 1. Which of the following does not have the same result as the others?

Accepted Answer

A)  Bit1 & Bit2 
B)  Bit1 | Bit2 
C)  Bit1 ^ Bit2 
D)  ~(~Bit2) 
A)  Bit1 & Bit2 
B)  Bit1 | Bit2 
C)  Bit1 ^ Bit2 
D)  ~(~Bit2)

Exam 22: Bits, Characters, C Strings and Structs

Let x be an unsigned int on a machine with 4-byte unsigned ints. What effect does x>>=1; X<<=1; Have?

The most basic unit of data on a computer is the:

Structure variable declarations can be incorporated into a structure definition by placing a comma-separated list of variable names:

The functions of the character-handling library typically manipulate characters as:

The strtol and stroul functions do not:

The advantages of using typedef do not include:

To change the string "ABCDEFGHI" to "aaaaaFGHI" you would use the _________ function.

The ___________ function allows characters of one part of a string to be copied into another, overlapping part of the same string.

Arrays are:

The main difference between the functions atof, atoi and atol is:

Assuming that string1 = "hello" and string2 = "hello world", which of the following returns 0?

Which is the proper way to create a built-in array of structure variables of type Data?

__________ is not allowed.

Two structure variables of the same type with the same member values, when compared will:

Which of the following correctly copies the contents of string2 into string1? Assume that string2 is equal to "goodbye" and string1 is equal to "good morning"?

Which function would be the most useful for determining if a certain word is contained in a string representing a sentence?

Memcmp would return ___________ for the call memcmp("Hi, how are you?", "Hi, how are things?", 6).

Strtok does not:

The number of bits in a bit field is specified with:

Let Bit1 = Bit2 = 1. Which of the following does not have the same result as the others?

Introduction to Computers and C++

Introduction to C Programming; Inputoutput and Operators

Introduction to Classes, Objects and Strings

Control Statements, Assignment, and Operators

Control Statements, Logical Operators

Functions and an Introduction to Recursion

Class Templates Array and Vector; Catching Exceptions

Pointers and Pointer-Based Strings

Classes: a Deeper Look; Throwing Exceptions

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Stream Inputoutput: a Deeper Look

File Processing

Standard Library Containers and Iterators

Standard Library Algorithms

Exception Handling: a Deeper Look

Introduction to Custom Templates

Custom Templatized Data Structures

Searching and Sorting

Class String and String Stream Processing

Other Topics

C++11 Additional Features

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