C++ MCQs with answers Page - 111

Here, you will find a collection of MCQ questions on C++. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. we can manipulate data stored in other variables ________ with pointer variables.

  • (A) never
  • (B) seldom
  • (C) indirectly
  • (D) both a and b

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Q. Which of the following is true about templates?
1) Template is a feature of C++ that allows us to write one code for different data types.
2) We can write one function that can be used for all data types including user defined types. Like sort(), max(), min(), ..etc.
3) We can write one class or struct that can be used for all data types including user defined types. Like Linked List, Stack, Queue,..etc.
4) Template is an example of compile time polymorphism.

  • (A) 1 and 2
  • (B) 1, 2 and 3
  • (C) 1, 2 and 4
  • (D) 1, 2, 3 and 4

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Q. Which of the following is incorrect in C++?
(1)When we write overloaded function we must code the function for each usage.
(2)When we write function template we code the function only once.
(3)It is difficult to debug macros
(4)Templates are more efficient than macros

  • (A) (1) and (2)
  • (B) (1), (2) and (3)
  • (C) (3) and (4)
  • (D) All are correct.

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Q. Which data type is used to represent the absence of parameters?

  • (A) int
  • (B) short
  • (C) void
  • (D) float

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Q. What does an escape code represent?

  • (A) alert
  • (B) backslash
  • (C) tab
  • (D) form feed

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Q. Which type is best suited to represent the logical values?

  • (A) integer
  • (B) Boolean
  • (C) character
  • (D) all of the mentioned

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Q. Identify the user-defined types from the following?

  • (A) enumeration
  • (B) classes
  • (C) both enumeration and classes
  • (D) int

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Q. The value 132.54 can be represented using which data type?

  • (A) double
  • (B) void
  • (C) int
  • (D) bool

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Q. When a language has the capability to produce new data type mean, it can be called as …...

  • (A) overloaded
  • (B) extensible
  • (C) encapsulated
  • (D) reprehensible

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Q. Choose the operator which cannot be overloaded.

  • (A) /
  • (B) ( )
  • (C) ::
  • (D) %

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