Model Question_7 for IT Jobs(network)

1
   Question    Which layer of the OSI model corresponds to TCP?
   1.    Network
   2.    Session
   3.    Data Link
   4.    Transport
   5.    None of above
   Answer. 4

2
   Question    What is the X.25 protocol?
   1.    It is a packet switching wireless LAN protocol
   2.    It is a packet switching WAN protocol based on public telephone networks
   3.    It is a packet switching wireless WAN protocol
   4.    It is a packet switching WAN protocol based on public data networks
   5.    All of above
   Answer. 2

3
   Question    What is the purpose of the shielding in a Shielded Twisted Pair (STP) cable?
   1.    To reduce Electro-Magnetic Interference
   2.    To reduce attenuation
   3.    To reduce cross talk
   4.    All of above
   5.    None of above
   Answer. 1

4
   Question    What does CSMA/CA stand for?
   1.     Carrier Sense Multiple Access/ Collision Avoidance
   2.     It is a packet switching wireless WAN protocol
   3.     It is a packet switching wireless LAN protocol
   4.     Collision Sense Multiple Access/ Collision Avoidance
   5.    All of above
   Answer. 1

5
   Question   What is the recommended maximum length(approx) for a segment of UTP cable?
   1.    1km
   2.    100m
   3.    180m
   4.    250m
   5.    500m
   Answer. 2

Answer
   Question    Which of the following is a Fiber Optic Connector?
   1.    RJ-11
   2.    RJ-35
   3.    RJ-45
   4.    MT-RJ
   5.    None of the above
   Answer. 4

7
   Question    Which network topology does FDDI use?
   1.    Mesh
   2.    Bus
   3.    Star
   4.    Ring
   5.   None of the above
   Answer. 4

8
   Question    Which of the following is a disadvantage of Peer Networks?
   1.    They require high investment in the form of purchase of a server
   2.   They have poor network security
   3.   They require high investment in the form of purchase of a specialized network operating system
   4.    They usually require a network administrator
   5.    All of above
   Answer. 2

9
   Question    According to the OSI model which layer is responsible for sending acknowledgements?
   1.    Presentation
   2.    Data Link
   3.    Transport
   4.    Session
   5.   None of the above
   Answer. 3

10
   Question    At which layer of the OSI model does a Proxy Server operate?
   1.    Application
   2.    Presentation
   3.    Session
   4.    Transport
   5.    All of above
   Answer. 1