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Interview Questions and Answers :: Happiest Minds

Home > Experience Archives > Happiest Minds > Interview Question Set 1
Telephonic Round
    Question :: 1
    Introduce yourself, about the current work followed by previous project your role and responsibility.

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    Question :: 2
    What is process and thread? What is major difference and similarity between them?

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    Question :: 3
    Can we create process without thread ?

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    Question :: 4
    What is major difference in kernel level thread and user level thread?

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    Question :: 5
    What mechanism you have used to synchronize the thread/process?

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    Question :: 6
    What is race condition ? and what is spin lock?

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    Question :: 7
    What is deadlock, and what will you to do avoid it ?

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    Question :: 8
    How you will debug the scenario where one thread/process consuming too much CPU?

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    Question :: 9
    How process scheduler work?

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    Question :: 10
    Rate yourself in c on the scale of 1 to 10.

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    Question :: 11
    What are the storage type in c.

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    Question :: 12
    Suppose you have used 10 register in your program and when you run the program, only available register is 3, where other register will be stored, will your program run?

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    Question :: 13
    What is pointer, and what are the type of pointer?

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    Question :: 14
    Can you use pointer on register?

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    Question :: 15
    Pointer to pointer to pointer to pointer to up to how much we can use? And how much you have use?

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    Question :: 16
    What are the type of memory allocation you have used,

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    Question :: 17
    What malloc, calloc and realloc return? Where this memory get allocated?

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    Question :: 18
    Which one will be fast malloc or calloc and why?

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    Question :: 19
    Extern is declaration or definition ?

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    Question :: 20
    What are c compilation steps?

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    Question :: 21
    What are the type of data-structure you have use?

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    Question :: 22
    What is balance tree, do you know red-black tree?

    Answer:

    A tree is called as balance tree if the difference between heights of left subtree and right subtree is not more than 1.


    A Red-Black Tree is a self-balancing Binary Search Tree (BST) where every node follows the below following rules.
    RedBlackTree
    1) Every node has a color either red or black.

    2) Root of tree is always black.

    3) There are no two adjacent red nodes (A red node cannot have a red parent or red child).

    4) Every path from root to a NULL node has same number of black nodes.

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    Question :: 23
    How can you traverse single linked list from back?

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    by Recursive function
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    Question :: 24
    Do you have question for me?

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