Data Structure and Algorithms (DSA) MCQs with answers Page - 20

Here, you will find a collection of MCQ questions on Data Structure and Algorithms (DSA). Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. The advantages of linked list over an array for representing a list is________

  • (A) space used is less
  • (B) deletion is easier
  • (C) insertion is easier
  • (D) both (a) and (b)

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Q. The address returned by malloc()is type casted because

  • (A) malloc returns integers pointer
  • (B) malloc returns void pointer
  • (C) malloc returns an integer value
  • (D) none of these

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Q. Which function returns a void pointers?

  • (A) malloc returns integers pointer
  • (B) calloc
  • (C) both (a)and(b)
  • (D) none of these

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Q. Select the correct statement

  • (A) free is used to release memory allocated by malloc
  • (B) free is used to release memory allocated by calloc
  • (C) both (a)and(b)
  • (D) only(a)but not(b)

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Q. The____linked list can be processed in either direction.

  • (A) singly
  • (B) singly circular
  • (C) doublyly
  • (D) none of these

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Q. A polynominal in single variable should be handled using__

  • (A) an array of structure
  • (B) singly linked list
  • (C) gll
  • (D) both (a) and (b)

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Q. A node of doubly linked contains

  • (A) pointer to predecessor
  • (B) pointer to sucessor
  • (C) both (a)and(b)
  • (D) only(a)

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Q. Each node in a linear list contains an item called____which points to the next node in the list.

  • (A) node
  • (B) link
  • (C) variable
  • (D) null

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Q. Which is not dynamic memory allocation function?

  • (A) malloc returns integers pointer
  • (B) calloc
  • (C) alloc
  • (D) free

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Q. The function that allocates requested size of bytes and returns a pointer to the first byte of the allocated space is

  • (A) realloc
  • (B) malloc
  • (C) free
  • (D) none of these

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