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# Cisco Placement Papers

21> In ternary number representation, numbers are represented as 0,1,-1. Here
-1 is represented as - (1 bar). Then how is 352/9 represented......
1

22> There are processors which take 4,1,8,1 machine cycles respectively. If
these are executed in round robin fashion with a time quantum of 4, what is the
time it take for process 4 to complete....

ANS: 9 (10)

23> The minimum frequency of operation is specified for every processor
because......

24> In memory mapped I/O, what will happen if a device is identified with a 16
bit address and enabled by memory related control signals.....

25> The reason for preferring CMOS over NMOS is....

Ans: Low power consumption.

26> Two binary numbers A,B are given and asked to find out A-B.

27> 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
1200bits, then number of symbols that can be transmitted.......

28> One question about the setassociativity of cache..

29> Write the postfix form of the following expression...

A+[[(B+C)+(D+E)*F]/G]

30> What is the function of the linker......

31> 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??

Paper 2

1.In the command scanf, h is used for

Ans. Short int

2.A process is defined as

Ans. Program in execution