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Top 100 Interview Questions & Answers in a convenient and easy to read book!

“I bought this guide a few days ago to prepare for my interview with Oracle. Many of the questions they asked me were from this guide. I found this book absolutely great!”

– Ravi, California

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  1. Submitted By: Fish25 — October 6, 2006
    +11 votes
      + -

    Layer# name Functionality
    7 Application program-to-program communication
    6 Presentation Manages Data representation and conversions
    5 Session Establishing and maintaining communications channels
    4 Transport end-to-end integrity of data transmission
    3 network Routes data from one node to another
    2 data link physically passes the data from one node to another
    1 physical putting the data on the network media and taking the data off

  2. Submitted By: sandeepthool — October 6, 2006
    +6 votes
      + -

    7 Layers of OSI Architechture
    —————————–

    1. Application Layer
    2. Presentation Layer
    3. Session Layer
    4. Transport Layer
    5. Network Layer
    6. Link Layer
    7. Electrical/Physical

    7. Electrical/Physical
    ———————-
    Responsible for defining various Electrical
    standards, like standardized Cables, Bit
    Stream Standards etc, to be used while
    communicating between HOSTS (Computers).

    6. Link Layer
    ————-
    Responsible for Encoding & subsequent
    De-Coding of Data Packets at various
    Network points.

    5. Network Layer
    —————-
    Responsible for providing LOGICAL paths for
    Data packets to pass through. It basically
    provides SWITCHING & ROUTING facilities.

    4. Transport Layer
    ——————
    Responsible for TRANPARENT flow of data
    between HOSTS (Computers), without due
    consideration to HARDWARE details. This
    layer is not concerned as to which
    applications are sharing data; rather it
    is only concerned with TRANSFERRING
    DATA PACKETS FROM ONE POINT TO ANOTHER-

    3. Session Layer
    —————-
    Responsible for maintaining a REGISTRY of
    all currently active connections from
    various HOSTS (Computers).

    2. Presentation Layer
    ———————
    Responsible for isolating different Data
    formats from each other. Ex.: Encryption
    process involves the AUTOMATIC conversion
    of Application data Format to Network Format
    & Vice-Versa.

    1. Application Layer
    ——————–
    Responsible for END-USER friendly protocols,
    like HTTP, FTP, TELNET etc. Software
    Developers directly interact with this
    layer of protocol to write programs.

  3. Submitted By: Aditi — October 15, 2006
    +12 votes
      + -

    I have one interesting line to remember all these layer names,hope this will help!! :-

    Please (Physical)
    Do (Data Link)
    Not (Network)
    Touch (Transport)
    Steve’s (Session)
    Pet (Presentation)
    Alligator (Application)

  4. Submitted By: Stuart Forbes — April 11, 2007
    +2 votes
      + -

    We were given the saying “Please Do Not Throw Sausage Pizza Away,” Physical, Data link, Network, Transport, Session, Presentation, Application. Having it relate to food seemed to help.

  5. Submitted By: rama — July 9, 2007
    not yet rated
      + -

    a short cut way to remember the 7 layers

    Please (Physical)
    Do (Data Link)
    Not (Network)
    Trust (Transport)
    Sales (Session)
    Persons (Presentation)
    Advise (Application)

  6. Submitted By: s.nithya lakshmi — August 2, 2007
    not yet rated
      + -

    physical layer-to program communication

  7. Submitted By: Rupinderjitsingh — November 5, 2007
    not yet rated
      + -

    For all punjabi Guys

    A-nu
    P-reet
    S-ingh
    T-ruck
    N-aal
    D-elhi
    P-ahuncheya

  8. Submitted By: Jim — May 1, 2008
    not yet rated
      + -

    Here’s one that worked for me
    Application = All
    Presentation = People
    Session = Should
    Transport = Transport
    Network = Network
    Data= Data
    Physical = Physically

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