(Interview) Important Interview Questions (Network, Testing, Technical and C, C++)

Important Interview Questions (Network, Testing, Technical and C, C++)

  • 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 Multipgm. enviornment
  • What you should do?
  • Which one you will use to implement critical section? Binary Semaphore
  • Which one is not needed for Multipgm. 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 clientserver application? tcp/ip,message passing,rpc,none of the above.
  • Term stickily bit is related to
    a)kernel     b)undeletable file     c)deletable file     d)none
  • Semaphore variable is different from ordinary variable by ?
  • Unix system is
    a)multi processing
    b)multi processing ,multiuser
    c)multi processing ,multiuser,multitasking
  • x.25 protocol encapsulates the follwing layers
    d)all of the above
    e)none of the above
  • TCP/IP can work on
  • A node has the ip address and it is transmitting data from node1 to node2only. The reason may be
    a)a node cannot have more than one address
    b)class A should have second octet different
    c)classB " " " " "
  • The OSI layer from bottom to top for an application which exceeds 64k the memory model should be
  • The condition required for dead lock in unix sustem is
    Setuserid is related to (in unix)
  • Wrong statement about c++
    a)code removably
    b)encapsulation of data and code
    c)program easy maintenance
    d)program runs faster
  • Which is true
    a)bridge connects dissimiler LAN and protocol insensitive
    b)router " " " " "
    c)gateway " " " " "
    d)none of the above
  • const char *
    char * const
    What is the differnce between the above two?.
  • About fork()?
  • About send message and post message
  • Message to limit the size of window
  • System call executable binary file intoa process
  • About GDI object?.
  • API used to hide window
  • Initialize contents of a dialog?.


  •  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 commandline 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")"?