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Questions for CISCO

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Q. No. : 1
Question :What's the difference between a hub and a switch?
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Q. No. : 2
Question :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 ?
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Q. No. : 3
Question :If the logical memory of 8 X 1024 is mapped into 32 frames, then the number of bits for the logical address are____ ?
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Q. No. : 4
Question :int main()
{
char *ptr = " Cisco Systems";
*ptr++;
printf("%sn",ptr);
ptr++;
printf("%sn",ptr);
getchar()
return 0;
}
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Q. No. : 5
Question :How the devices are managed if more devices are available than IRQ lines?
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Q. No. : 6
Question :Write an strrev routine.( inplace code)
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Q. No. : 7
Question :What is the difference between user and kernel space?
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Q. No. : 8
Question :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 ?
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Q. No. : 9
Question :Write a macro to set the nth bit ?
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Q. No. : 10
Question :If you are not having a sizeof operator in C, how will you get to know
the size of an int ?
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Q. No. : 11
Question :Write a program to reverse a linked-list.
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Q. No. : 12
Question :What is real time OS and how it's different from other OS?
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Q. No. : 13
Question :What is balanced binary tree?
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Q. No. : 14
Question :Is windows/linux microkernel architecture?
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Q. No. : 15
Question :What is difference between router and gateway?
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Q. No. : 16
Question :Explain the routines that executes whenever the system boots up like ROM BIOS routines.
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Q. No. : 17
Question :Is the scheduler itself a process or not.
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Q. No. : 18
Question :How interrupts are handled in operating system
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Q. No. : 19
Question :What is segmentation fault?
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Q. No. : 20
Question :To concatenate two linked lists strings, the order is O(1) is obtained for what kind of list?
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Q. No. : 21
Question :Write code for minimal spanning tree ?
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Q. No. : 22
Question :What is Ping and How does it work?
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Q. No. : 23
Question :What data structure would you use to implement a routing table? Suggest optimizations
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Q. No. : 24
Question : Implement Queue using stack. How many stacks you need? Note that you can only use following functions on a queue.

enQueue() deQueue() isEmpty() isFull()

And your stack should support following operations.
push() pop() isEmpty() isFull()
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