Placement Papers: Compaq Placement Paper OS Networking C
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- Why paging is used?
- Which is the best page replacement algo and Why?
- What is software life cycle?
- How much time is spent usually in each phases and why?
- What is testing?
- Which are the different types of testing?
- Which are the different phases in Software life cycle (asked again)
- Why is analysis and testing phases very important?
- Why networks are layered? What is the advantage of that?
- How many layers are there in OSI? Why is it called OSI model?
- network topologies?
- Which are the different network toplogies?
- an example of bus type network.
- What is the Bandwidth of ethernet?
- Explain the advantage and disadvantage of ethernet?
- Which is the protocol used in ethernet (CSMA/CD) . Why is it called so?
- What is the advantage of Ring network?
- Compare it with ethernet.
- What is inheritance, encapsulation etc.
- If there are too many page faults what is the problem?
- To ensure one pgm. Doesnt corrupt other pgm. In a Multi-pgm. Enviornment
- What you should do?
- Which one you will use to implement critical section? Binary Semaphore
- Which one is not needed for Multi-pgm. Enviornment?
- options are: Virtual memory, security, time sharing, none of the above:
- Which one is not done by Data link layer? bit stuffing, LRC, CRC, parity check
- Which one is not related to Data link layer?
- Which one is not suitable for client-server application? tcp/ip, message passing, rpc, none of the above:
- Term stickily bit is related to
- kernel
- undeletable file
- none
- semaphore variable is different from ordinary variable by?
- unix system is
- multi processing
- multi processing, multiuser
- multi processing, multiuser, multitasking
- multiuser, multitasking
- x. 25 protocol encapsulates the follwing layers
- network
- datalink
- physical
- all of the above
- none of the above
- TCP/IP can work on
- ethernet
- tokenring
- a&b
- none
- a node has the ip address 138.50. 10.7 and 138.50. 10.9. But it is transmitting data from node1 to node2only. The reason may be
- a node cannot have more than one address
- class A should have second octet different
- classB ″ ″ ″ ″ ″
- a, b, c
- the OSI layer from bottom to top for an application which exceeds 64k the memory model should be
- medium
- huge
- large
- none
- the condition required for dead lock in unix system is set-user-id is related to (in unix) bourne shell has
- wrong statement about c ++
- code removably
- encapsulation of data and code
- program easy maintenance
- program runs faster
- which is true
- bridge connects dissimiler LANand protocol insensitive
- router ″ ″ ″ ″ ″
- gateway ″ ″ ″ ″ ″
- none of the above
C Skill Sets
- How do you write a program which produces its own source code as its output?
- How can I find the day of the week given the date?
- Why doesn՚t C have nested functions?
- What is the most efficient way to count the number of bits which are set in a value?
- How can I convert integers to binary or hexadecimal?
- How can I call a function, given its name as a string?
- How do I access command-line arguments?
- How can I return multiple values from a function?
- How can I invoke another program from within a C program?
- How can I access memory located at a certain address?
- How can I allocate arrays or structures bigger than 64K?
- How can I find out how much memory is available?
- How can I read a directory in a C program?
- How can I increase the allowable number of simultaneously open files?
- what՚s wrong with the call “fopen (” c: ⧵newdir⧵file. Dat “” r “) ”