HFCL Placement-Paper

Discussion in 'Latest Placement papers' started by s.ananad, Dec 21, 2013.

  1. HFCL CAMPUS TEST [1]

    (1) TTL to CMOS pullup & vice-versa

    (2) function of Ping

    (3) SNMP protocol

    (4) Application layer

    (5) ## ----> token pasting in C

    (6) Question on C: i^=j you have to tell the output given the values of i and j;

    (7) Complexity of Binary Search tree

    (8) Macro is given as follows : SQR(x) x*x
    find the value of SQR(i-j) , when i and j were given

    (9) Multiplexer 1 to 3 inputs--- A,B,C control lines--- S1,S2 Output --- Y .Write Y interms of S1,S2

    (10) Bandwidth minimum sampling theorem

    (11) Shannon's Law

    (12) Difference between fork() & execve()

    (13) Banker's algorithm

    (14) append(&struct , fp)

    (15) Windows95 , X-Windows what are they?

    (16) 16k memory , ending address of the address space FFFFH find the starting address?

    (17) Difference between TCP/IP and OSI model

    (18) Difference between Bridge and router

    (19) A graph was given : " a qudrilateral with 1 diagonal " find the number of trees in the graph

    (20) Difference between TCP and UDP

    (21-23) Pass by reference in C (3 questions)

    (24) Synchronisation technique for IPC ( probably which method among the 4 choices was best was asked)

    (25) Address of RST 6.5

    (26) Preorder Traversal

    (27) Infix to Postfix

    (28) What data structure is used to transform infix to postfix?

    (29) 4 bit computer , size of ROM given , output of ROM gives the address , design a mod-n counter

    (30-31) FIFO , LRU page trace

    (32) How many flip-flops in MOD-33 counter?

    (33) printf("\nab\bcd\ref");

    (34) doorom hello test
    find argc and argv

    (35) call main()
    main()
    {
    toupper("Hello");
    main();
    }

    what does this piece of code does?

    (36-39) 4 question from Understanding Pointers in C on Pointer , Array , all from exercise in the book

    (40-41) 2 questions on precedence rule

    HFCL CAMPUS TEST [2]


    (1) ICMP protocol which layer?

    (2) Ping - which protocol implemented?

    (3) FTP - which protocol implemented?

    (4) What kind of handshaking is used in TCP/IP?

    (5) IP addressing ClassA , ClassB , ClassC

    (6) End to end error correction is done by which layer ?

    (7) Question on address bus and data bus ALE

    (8) 16 bit address bus and 8 bit data bus , how much memory can be interfaced ?

    (9) 1 bit opcode , (n-1) operand , find the length of Program Counter

    (10) 4 bit ROM

    (11) What is the benefit of memory interleaving ?

    (12) How many maskable and non-maskable interrupt in 8085

    (13) RISC what kind of Control Unit is implemented ?

    (14) In Pipeline architechture , what is the value of CPI (Cycles Per Instruction)

    (15) Where TLB is used?

    (16)

    struct a
    {
    char b[7];
    char *s;
    };
    struct b
    {
    char *t;
    struct a y;
    };
    struct b q={"Raipur" , "Kanpur" , "Jaipur"};
    printf("%s %s" , q.t , q.y.s);
    printf("%s %s" ,++q.t , ++q.y.s);
    Find the ouput

    (17) Heapsort worst case complexity

    (18) Binary search complexity

    (19) Where far pointer is used?

    (20) Why address of operator(&) cannot be used on register variables?

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