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Interview Questions and Answers :: Ciena

Home > Experience Archives > Ciena > Interview Question Set 2
Telephonic Round
    Question :: 1
    Can you just brief me about your current and previous projects?

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    Question :: 2
    Suppose two host are connected by a switch. Ping from Host-A to Host-B, Explain packet flow, format in detail for below two scenario:
    A) When both Hosts are in same subnet.
    B) When both Host are in Different subnet.
    C) How decision made that other host is in different subnet.

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    Question :: 3
    Do you know IPC, What is pipe?

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    Question :: 4
    What is difference in Pipe and message Queue?

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    Question :: 5
    In what are scenario Pipe will be used and FIFO can't and vic-versa.

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    Question :: 6
    What is shared memory, and when to use it.

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    Question :: 7
    Do you know IPC with socket? What are the call to create TCP socket server/client?

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    Question :: 8
    Which are the call will not be for UDP socket.
    1. Suppose multiple client is sending request to server, How server Identify the clients, response it.
    2. When client/server receive data at socket, how it identify how many byte it has to read/write.

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    Question :: 9
    Why TLV format is used even it overhead multiple byte in packet.

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    Question :: 10
    Have you work on thread, What is txthread and rxthread.

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    Question :: 11
    rxthread receive data less than txthread sending data. why it is like that.

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    Question :: 12
    What is structure padding?

    struct put
    int a;
    char b;
    float c;
    char d;
    };

    struct put
    int a;
    char b[2];
    float c;
    char d;
    };

    what will be the sizeof structure.

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    Question :: 13
    Why we use spinning tree?

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    Question :: 14
    What are the algorithm used for spanning tree?

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    Question :: 15
    Do you know MST?

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    Question :: 16
    Do you know kruskal and prism algorithm.

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    Question :: 17
    What is AVL tree, what is major difference between RB tree and AVL.

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    Question :: 18
    How many time Hello will be printed?

    main ()
    {
    fork();
    fork();
    print("Hello");
    }

    Answer:
    Hello Hello ... 2 times ...
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    Question :: 19
    Do you have any question for me?

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