Cisco Systems Interview Questions
- 0of 0 votes
AnswersEach cell of an N x N grid is either a 0 or a 1. You are given two such N x N grids, the initial grid and the final grid. There is a button against each row and each column of the initial N x N grid. Pressing a row-button toggles the values of all the cells in that row, and pressing a column-button toggles the values of all the cells in that column. You are required to find the minimum number of button presses required to transform the grid from the initial configuration to the final configuration, and the buttons that must be pressed in order to make this transformation.
- pirateMaster September 23, 2009| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer / Developer Coding - 0of 0 votes
AnswersWrite a code to swap every two bits in a byte. (Using bit operators) eg: Input: 10 01 11 00 Output: 01 10 11 00
- jai August 11, 2009| Report Duplicate | Flag | PURGE
Cisco Systems Bit Manipulation - 0of 0 votes
Answershow would i deal with an irate distributor
- William Rivera May 23, 2009| Report Duplicate | Flag | PURGE
Cisco Systems Area Sales Manager - 0of 0 votes
Answershow would i be an asset to there company
- William Rivera May 23, 2009| Report Duplicate | Flag | PURGE
Cisco Systems Area Sales Manager - 0of 0 votes
Answerswhat would i do if there was a complaint with a buisness and one of my employees
- William Rivera May 23, 2009| Report Duplicate | Flag | PURGE
Cisco Systems Area Sales Manager - 0of 0 votes
AnswerWhy does BGP uses Full-Mesh?
- Robert August 26, 2008| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer in Test Networking / Web / Internet - 0of 0 votes
AnswersWhat are the 7 stages through which OSPF converges.
- Robert August 26, 2008| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer in Test Networking / Web / Internet - 0of 0 votes
AnswersExplain any one routing protocols in detail. eg BGP , OSPF , RIP etc
- Robert August 15, 2008| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer in Test Networking / Web / Internet - 0of 0 votes
Answers1.) What is difference between IPv4/IPv6 protocol
- James April 09, 2008
2.)OSI & TCP/IP stack layers + protocols at each layer.
3.)What is network/subnet mask. Explain how a host A sends a message/packet to host B
3a.) When both are on same network
3b.) When both are on different networks
You need to explain which layer takes routing decision and how.
4.) What is TCP/UDP. Difference between both. And explain how TCP handles reliable delievery(explain ACK mechanism), flow control(explain TCP sender's/receiver's window) and congestion control.| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer / Developer Networking / Web / Internet - 0of 0 votes
Answers1. which kernel were u working? debugging techniques? challenges?
- backbone March 29, 2008
2. a mad user tries to allocate 1 gb memory using calloc.
but the program fails after allocationg about 800mg(appx. i dont remember). Tell me what could have gone wrong?
3.
We know disabling interrupts works only if it is single processor(i.e local disabling of interrupts).
Consider this case where we have a SMP(symmetric multi proc) the processor. Processor-1 wants to perform some critical operation so it disables all the interrupts.
What will happen when processor-2 throws an interrupt.| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer / Developer Linux Kernel - 0of 0 votes
AnswersImplement int strcpy(char* des,char* src) that returns the # of chars copied. I used ptr notation. He said, how else can it be implemented? I responded arrays, but both are base-offset anyhow. Very simple. I guess he just wanted to see if I know C programming.
- Jack October 14, 2006| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer / Developer Coding - 0of 0 votes
AnswersWhat do you envision Cisco people do?
- Jack October 14, 2006| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer / Developer Behavioral - 0of 0 votes
AnswersHave you taken any networking classes? How strong are you in C?
- Jack October 14, 2006| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer / Developer Experience - 0of 0 votes
AnswersSolve puzzle. People(costs: 10,5,3,2,1) trying to get across a bridge within 21 mins. It's dark and only one person carries a flashlight at any point in time. Two people must cross the bridge, since one has the flashlight. How can they call cross the bridge before it breaks? Solved this after he gave me the clue that 10,5 should get across and stay there.
- Jack October 14, 2006| Report Duplicate | Flag | PURGE
Cisco Systems Software Engineer / Developer Brain Teasers