• What is the placement procedure for Cisco? Could someone share the details of it?

    I have heard the Eligibility is -
    1. 70% aggregate marks or (equivalent scores) throughout in academics.
    2. No Gap in their academics.
    3. No current backlogs.

    And the Procedure is -

    1. Written test.
    2. Interview.

    The following attachment is a collection of few questions asked in Cisco Test.

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  • Sahithi Pallavi

    MemberAug 1, 2011

    I have seen one Cisco off campus test paper. It contains 50 questions.

    15 - Aptitude
    10 - Networking (mainly asked about the protocols and their layers)
    10 - SQA Testing (asked about importance, reasons, benefits of testing)
    15 - C (Program Outputs)
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  • Ankita Katdare

    AdministratorAug 3, 2011

    Great. Could someone share the commonly asked interview questions?
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  • Reya

    MemberAug 3, 2011

    Most of the questions will be asked from digital communication 😀
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  • Reya

    MemberAug 6, 2011

    Placement paper -2011
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  • Reya

    MemberAug 22, 2011

    Previous year placement papers:

    1. In order to find out stack fault of a three input
    nand gate how many necessary input vectors are needed ?
    2. What is parity generation ?
    3. A nand gate becomes ___ gate when used with negative logic ?
    4. What is the advantage of cmos over nmos ?
    5. What is the advantage of syncronous circuits over
    asynchronous circuits ?
    6. What is the function of ALE in 8085 ?
    7. A voice signal sample is stored as one byte.
    Frequency range is 16 Hz to 20 Hz. What is the
    memorysize required to store 4 minutes voice signal?
    8. What will the controller do before interrupting CPU?
    9. In a normalised floating point representation,
    mantissa is represented using 24 bits and exponent
    with 8 bits using signed representation. What is range?
    10. The stack uses which policy out of the following--
    LIFO, FIFO, Round Robin or none of these ?
    11. Where will be the actual address of the subroutine
    is placed for vectored interrupts?
    12. Give the equivalent Gray code reprasentation of
    13.What is the memory space required if two unsigned 8
    bit numbers are multiplied ?
    14. The vector address of RST 7.5 in 8085 processor is_______.
    Ans. 003C (multiply 7.5 by 8 and convert to hex)
    15. Subtract the following hexadecimal numbers--- 8416
    - 2A16
    16. Add the following BCD numbers--- 1001 and 0100
    17. How much time does a serial link of 64 Kbps take
    to transmit a picture with 540 pixels.
    18. Give the output when the input of a D-flip flop is
    tied to the output through the XOR gate.
    19. Simplify the expression AB + A( B + C ) + B ( B +
    C )
    20. Determine the logic gate to implement the
    foolowing terms--ABC, A+B+C
    21. Implement the NOR gate as an inverter.
    22. What is the effect of temperature on the Icb in a
    23. What is the bit storage capacity of a ROM with a
    512*4 organisation?
    24. What is the reason of the refresh operation in
    dynamic RAM's ?
    25. Suppose that the D input of a flip flop changes
    from low to high in the middle of a clock
    pulse.Describe what happens if the flip flop is a
    positive edge triggered type?
    26. How many flip flops are required to produce a
    divide by 32 device ?
    27. An active HIGH input S-R latch has a 1 on the S
    input and a 0 on the R input. What state is the latch
    28. Implement the logic equation Y = C^BA^ + CB^A +
    CBA with a multiplexer. (where C^ stands for C
    29.Equivalent Gray code reprasentation of AC2H.
    30. What does a PLL consist of ?
    We advice you to know the design of PLL as questions
    pertaining to this may be asked
    1. The starting location of an array is 1000. If the
    array[1..5/...4] is stored in row major order, what is
    the location of element [4,3]. Each word occupies 4
    2. In a tertiary tree, which has three childs for
    every node, if the number of internal nodes are N,
    then the total number of leaf nodes are
    3. Explain the term "locality of reference" ?
    4. What is the language used for Artificial
    Ans: lisp
    5. What is the character set used in JAVA 2.0 ?
    Ans: Unicode
    6. char a =0xAA ;
    int b ;
    b = (int) a ;
    b = b >> 4 ;
    What is the output of the above program segment ?
    7. struct s1 { struct { struct { int x; } s2 } s3 }y;
    How does one access x in the above given structure
    definition ?
    8. Why there is no recursion in Fortran ?
    Ans. There is no dynamic allocation.
    9. What is the worst case complexity of Quick sort?
    Ans. O(n2)
    10. What will be sequence of operating system
    activities when an interrupt occurs ?
    11. In a sequential search, what is the average number
    of comparisons it takes to search through n elements ?
    Ans: (n+1)/2.
    12. What is the size of the array declared as double *
    X[5] ?
    Ans. 5 * sizeof ( double * )
    13. A binary search tree with node information as
    1,2,3,4,5,6,7,8 is given. Write the result obtained on
    preorder traversal of the binary search tree ?
    Ans : 53124768
    14. If size of the physical memory is 232-1, then
    what is the size of the virtual
    memory ?
    15. S -> A0B
    A-> BB|0
    B-> AA|1
    How many strings of length 5 are possible with the
    above productions?
    16. (3*4096+15*256+3*16+3). How many 1's are there in
    the binary representation of the result ?
    Ans. 10
    17. In memory mapped I/O how is I/O is accessed ?
    18. What is the use of ALE in 8085 ?
    Ans To latch the lower byte of the address.
    19. If the logical memory of 8 X 1024 is mapped into
    32 frames, then the number of bits for the logical
    address are____ ?
    Ans. 13
    20. Context free grammar is useful for which purpose ?
    21. In ternary number representation, numbers are
    represented as 0,1,-1.(Here -1 is represented as 1
    bar.) How is 352/9 represented in ternary number
    22. There are processes which take 4,1,8,1 machine
    cycles respectively. If these are executed in round
    robin fashion with a time quantum of 1, what is the
    time it take for process 4 to complete ?
    Ans. 9
    23. The minimum frequency of operation is specified
    for every processor because......
    a)for interfacing slow peripherals
    b)dynamic memory refreshing.
    c)to make compatible with other processor.
    24. For linked list implementation , which search is
    not applicable ?
    Ans: Binary search.
    25. Each character is represented by 7 bits, 1 bit is
    used to represent error bit and another bit for
    parity. If total number of bits transmitted is 1200
    bits, then what is the number of symbols that can be
    transmitted ?
    Ans: 133
    26. Explain set associativity of cache ?
    27. Write the postfix form of the following expression
    28. What is the function of the linker?
    29. void f(int y)
    struct s *ptr;
    ptr = malloc (sizeof (struct)+99*sizeof(int));
    struct s{
    int i;
    float p;
    when free (ptr) is executed, then what will happen?
    30. To concatenate two linked lists strings, the order
    is O(1) is obtained for what kind of list?

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