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Interview Questions and Answers :: Cisco

Home > Experience Archives > Cisco > Interview Question Set 3
First Round (F-2-F) Second Round (F-2-F) Third Round (F-2-F)
    Question :: 1
    Write a Program to insert a node in a linked list in a sorted manner.

    Answer:
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    Question :: 2
    Write a Program to Search and delete a node from linked list based on data value.

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    Question :: 3
    Write Program to reverse the linked list and display the reversed linked list nodes.

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    Question :: 4
    Write a Program to swap the 2 nibbles of a byte size variable.

    Answer:

    assuming 2 numbers are



    a = 10



    b = 20



     # 1. Summing up two numbers and store in 'a'



    a = a b 



    # 2. swap b by subtracting b value from above a value



    b = a - b  # b = 30 - 20  = 10



    # 3. get a value swapped 



    a = a - b # a = 30 - 10 = 20



     

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    Question :: 5
    Write a Program to count the number of SET bits in an integer.

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    Question :: 6
    Write a Program to swap two variables without using 3rd variable.

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    Question :: 7
    Allocating memory for a 2D array where number of rows and columns is dynamically decided.

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    Question :: 8
    What are the contents of argc and argv[]?

    Answer:

    argc contains count of argument



    argv contains list of arguments

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    Question :: 9
    What is the difference between array of pointers and pointer to an array. Write the declarations.

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    Question :: 10
    Write your own Strcpy and strncpy.

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    Question :: 11
    Write a Program to implement strcat() or strstr() equivalents in your own program

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First Round (F-2-F) Second Round (F-2-F) Third Round (F-2-F) First Round (F-2-F) Second Round (F-2-F) Third Round (F-2-F)