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Juniper Network Interview Questions and Answers for 3 years Experience

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    1 / 10

    Written test have 10 question

    Write a program to divide the given Linked list as below
    Given:
    Linked List: 1->2->3->4->5->6->7 ----->NULL

    Output:
    First Linked List: 1->3->5->7->9-> NULL
    Second Linked List: 2->4->6->8->10-> NULL

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    2 / 10

    How you will find the offset of c in given below structure

    struct
    {
    int a;
    int *b;
    char *c;
    char d;
    };

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    3 / 10

    Write logic to find the depth of tree.

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    4 / 10

    arr = {{1,2}, {3,4};
    *ptr = arr;
    printf("arr[1][1] %d \n", ________ );

    Fill the appropriate to access arr[1][1] in above partial code.

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    5 / 10

    struct student
    {
    char abc;
    int i;
    };

    What will be the size of struct student;

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    6 / 10

    char *str1;
    char *str2;
    char *str3 = NULL;
    char *str4 = NULL;
    char str5[10];
    char str6[10]="abc";

    Mark appropriate for the below operation [Compile time | Run time | Valid Statement]
    str1 = "xyz";
    strcpy(str2, "xyz");
    str3 = "xyz";
    strcpy(str4, "xyz");
    str5 = "xyz";
    strcpy(str6, "xyz");

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    7 / 10

    What will be the Output/Error for the below pseudo code:

    char *str2 = NULL;
    char *str1[] = "ab";
    char *str = "abcde";

    printf("%d", sizeof (str));
    printf("%d", strlen(str));
    printf("%d", sizeof (str1));
    printf("%d", strlen(str1));
    printf("%d", sizeof (str2));
    printf("%d", strlen(str));

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    8 / 10

    int print_of_a (int a)
    {
    printf("in fun %d", a);
    return a+1;
    }

    int print_of_x (int a)
    {
    printf("in fun %d", a);
    return a-1;
    }

    int main()
    {
    int x;
    printf("in main function \n");
    x = print_of_a(3);
    printf("%d", x);
    printf("in main function \n");
    x = print_of_x(3);
    printf("%d", x);
    }

    Write down the output for the above code.

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    9 / 10

    Will be updated

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    10 / 10

    Will be updated

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    1 / 14

    Tell me about yourself and about work.

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    2 / 14

    What is OSPF?

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    3 / 14

    How may LSA Router and How many N/w LSA in below topology.

    [R1] -------1------[Network]------1----[R4]-----------5------[R7]
    | |
    |----1------[R3]------6-------[R6]----1---|

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    4 / 14

    What type of network between the above question topology.
    1. R1, R4 & R3
    2. R4->R7
    3. R3->R6

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    5 / 14

    How routing calculation happen in below topology. The routing information learn on router R1 and R6 are same or not.
    [R1] -------1------[Network]------1----[R4]-----------5------[R7]
    | |
    |----1------[R3]------6-------[R6]----1---|

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    6 / 14

    How LSA learning happen in below topology, and how routing calculation in happening.

    [R1] -------1------[Network]------1----[R4]-----------5------[R7]
    | |
    |----1------[R3]------6-------[R6]----1---|

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    7 / 14

    R2 can reach to network an in cost of 5 and R1 can reach in a cost of (1+5) i.e. 6 to network. When this network (N) is not reachable from R2 and R1 sending update that it can reach in cost 6 so R2 will update, So it will become a loop, How will you prevent this issue...?

    [R1]------1--------[R2]-------5-----[Network]
    |------2-------------|

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    8 / 14

    What is split horizon and routing poison?

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    9 / 14

    Why RIP work only for small topology?

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    10 / 14

    How ping happen / packet forward from source host to destination host.

    Source Host ----------------- Destination Host

    What if two router and one switch introuduce in topology.

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    11 / 14

    Diference between RIP and OSPF in terms of distance/Matric

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    12 / 14

    What is ARP? and What is gratuitous ARP?

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    13 / 14

    How mac-address learning happen? Explain each steps in details.

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    14 / 14

    Impliment a linked list using recurssion. How pointer return back to the calling in recuression?

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