Explore topic-wise MCQs in Atos.

This section includes 37 Mcqs, each offering curated multiple-choice questions to sharpen your Atos knowledge and support exam preparation. Choose a topic below to get started.

1.

What is stderr?

A. standard error
B. standard error types
C. standard error streams
D. standard error definitions
Answer» D. standard error definitions
Discussion
2.

When two types are used in a function template and one is labeled T, the other

A. must also be named T
B. must be named U
C. can be any legal C++ identfier
D. it is illegal to have two types
Answer» B. must be named U
Discussion
3.

The function that takes arguments to set the bits of count is _____

A. setf()
B. bitsef()
C. ios()
D. flag()
Answer» B. bitsef()
Discussion
4.

When a break statement is used in a loop, the control skips the rest of the statements in the loop after it and jumps

A. to the last lines in the program
B. to the next statement written after the body of the loop
C. to the first statement in the body of the loop
D. All. of the above
Answer» C. to the first statement in the body of the loop
Discussion
5.

Any #include files may contain

A. constants
B. variables
C. functions
D. All of the above.
Answer» E.
Discussion
6.

Which of the following are valid characters for a numeric literal constant?

A. a decimal point
B. the letter e
C. a minus sign
D. a plus sign
E. All of the above
Answer» F.
Discussion
7.

  In a class specifier, data or functions designated private are accessible

A. to any function in the program
B. only if you know the password
C. to member functions of that class
D. only to public members of the class
Answer» D. only to public members of the class
Discussion
8.

  Which of the following statements is false?

A. You typically use a public member function to change the value in a private data member
B. Because the constructor function does not return a value, you place the keyword void before the constructors name
C. The public member functions in a class can be accessed by any program that uses an object created from that class
D. An instance of a class is considered an object
Answer» C. The public member functions in a class can be accessed by any program that uses an object created from that class
Discussion
9.

In which statements, does a 'continue' statements cause the control to go directly to the test condition and then continue the looping process?

A. for and while
B. while and if-else
C. do-while and if-else
D. while and do-while
Answer» E.
Discussion
10.

A function in a derived class that has the same name as a function in the parent class

A. will override the base class function
B. will cause an error message to display
C. will be overridden by the base class function
D. will execute immediately often the base class function executes
Answer» B. will cause an error message to display
Discussion
11.

A normal C++ operator that acts in special ways on newly defined data types is said to be

A. glorified
B. encapsulated
C. classified
D. overloaded
Answer» E.
Discussion
12.

A constructor always has

A. communicational cohesion
B. temporal cohesion
C. logical cohesion
D. no cohesion
Answer» C. logical cohesion
Discussion
13.

Evaluate the following expression: 4 >6 || 10 < 2 * 6

A. True
B. False
Answer» B. False
Discussion
14.

When you create a derived class and instantiate an object ____

A. the parent class object must be constructed first
B. the child class object must be constructed first
C. the parent class object must not be constructed
D. the child class object must not be constructed
Answer» B. the child class object must be constructed first
Discussion
15.

Using a statement at the wrong time or with an inappropriate object creates a

A. logical error
B. syntax error
C. compiler error
D. language error
Answer» B. syntax error
Discussion
16.

When an object-oriented program detects an error within a function, the function _________

A. throws an exception
B. throws a fit
C. catches a message
D. catches an exception
Answer» B. throws a fit
Discussion
17.

The return type you code for all constructors is _____

A. void
B. the class type
C. the same type as the first data member defined in the class
D. no type
Answer» E.
Discussion
18.

The compiler converts your C++ instructions into _____

A. edited code
B. object code
C. source code
D. translated code
Answer» C. source code
Discussion
19.

Variables declared outside a block are called _____

A. global
B. universal
C. stellar
D. external
Answer» B. universal
Discussion
20.

The first element in a string is

A. the name of the string
B. the first character in the string
C. the length of the string
D. the name of the array holding the string
Answer» C. the length of the string
Discussion
21.

When you omit parameters from a function call, values can be provided by

A. formal parameters
B. reference parameters
C. overloaded parameters
D. default parameters
Answer» E.
Discussion
22.

Which collection class allows you to grow or shrink its size and provides indexed access to its elements, but whose methods are not synchronized?

A. java.util.HashSet
B. java.util.LinkedHashSet
C. java.util.List
D. java.util.ArrayList
Answer» E.
Discussion
23.

Which of the following statements is correct about the .NET Framework?

A. .NET Framework uses DCOM for achieving language interoperability.
B. .NET Framework is built on the DCOM technology.
C. .NET Framework uses DCOM for making transition between managed and unmanaged code.
D. .NET Framework uses DCOM for creating unmanaged applications. E.
Answer» D. .NET Framework uses DCOM for creating unmanaged applications. E.
Discussion
24.

Code that targets the Common Language Runtime is known as

A. Unmanaged
B. Distributed
C. Legacy
D. Managed Code
Answer» E.
Discussion
25.

Which of the following .NET components can be used to remove unused references from the managed heap?

A. Common Language Infrastructure
B. CLR
C. Garbage Collector
D. Class Loader
Answer» D. Class Loader
Discussion
26.

Which of the following components of the .NET framework provide an extensible set of classes that can be used by any .NET compliant programming language?

A. .NET class libraries
B. Common Language Runtime
C. Common Language Infrastructure
D. Component Object Model
Answer» B. Common Language Runtime
Discussion
27.

Which of the following statements is correct about Managed Code?

A. Managed code is the code that is compiled by the JIT compilers.
B. Managed code is the code where resources are Garbage Collected.
C. Managed code is the code that runs on top of Windows.
D. Managed code is the code that is written to target the services of the CLR.
E. Managed code is the code that can run on top of Linux.
Answer» E. Managed code is the code that can run on top of Linux.
Discussion
28.

Reference is like a _____.

A. Pointer
B. Structure
C. Macro
D. Enum
Answer» B. Structure
Discussion
29.

A reference is declared using the _____ symbol.

A. &&
B. &
C. ||
D. !
Answer» C. ||
Discussion
30.

Which of the following statement is correct about the references?

A. A reference must always be initialized within functions.
B. A reference must always be initialized outside all functions.
C. A reference must always be initialized.
D. Both A and C.
Answer» D. Both A and C.
Discussion
31.

Which of the following statement is correct?

A. A reference is stored on heap.
B. A reference is stored on stack.
C. A reference is stored in a queue.
D. A reference is stored in a binary tree.
Answer» C. A reference is stored in a queue.
Discussion
32.

The symbol

A. is called the insertion operation
B. is called the output operator
C. is called the extraction operator
D. a and b both
Answer» E.
Discussion
33.

What is the usually used unit of measuring the speed of data transmission ?

A. Baud
B. Bytes per second
C. bits per second
D. megabytes per second
Answer» B. Bytes per second
Discussion
34.

What is the first element in a sting ?

A. The name of the string
B. The length of the string
C. The address of the string
D. The first character in the string
Answer» B. The length of the string
Discussion
35.

Which of the following is true about overloaded functions?

A. They are a group of functions with the same name
B. They all have the same number and types of arguments
C. They may fail unexpectedly due to stress
D. All of these
Answer» B. They all have the same number and types of arguments
Discussion
36.

Which of the following connect different computers by LAN?

A. Cable and modem
B. Cable and interface card
C. Modem and interface card
D. Special wires and telephone lines
Answer» C. Modem and interface card
Discussion
37.

Which of the following is correct declaration for a pointer to a function that returns a float ?

A. float f();
B. float *f();
C. float (*f) ();
D. float* (*f)();
Answer» D. float* (*f)();
Discussion