Saturday, September 9, 2017

Computer Science Mock Test UGC-NET (Paper ii & iii- Computer Networks) - Part 17

This Quiz is posted with the sole aim of guiding the aspirants of UGC-NET / CSIR -NET Exam to the path of success. To sharpen the edges of your own intelligence and practice, in a structured and concrete manner to ensure you definite Success in your endeavor and will Pave your way for a successful career in Teaching (or) Research Profession . All the very best...... Knock the door of success......
  1.  Which of the following is/ are the drawbacks of Ring Topology?
    1.  Adding or removing the computers disturbs the network activity
    2.   Failure of one computer, can affect the whole network
    3.   Both of a and b
    4.  If the central hub fails, the whole network fails to operate.

  2. What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."
    1.  The administrator is pinging from the interface.
    2.  The keepalives are different times.
    3.  No cable is attached.
    4.  The administrator has the interface shut down.

  3. The examples of Interior Gateway Protocols (IGP) are.
    i) Open Short Path First (OSPF)
    ii) Routing Information Protocol (RIP)
    iii) Border Gateway Protocol (BGP) 
    A) i only
    B) i, and ii only
    C) i and iii only
    D) All i, ii and iii
    1.  i, and ii only
    2.  i only
    3.  i and iii only
    4.  All i, ii and iii

  4. A WAN typically spans a set of countries that have data rates less than ____________Mbps.
    1.  2
    2.  8
    3.  64
    4.  1

  5. IEEE 802.3ab defines Gigabit Ethernet transmission over unshielded twisted pair (UTP) category 5, 5e or 6 cabling known as _____________.
    1.  1000 BASE-T
    2.  1000 BASE-LX
    3.  1000 BASE-SX
    4.  1000 BASE-CX

  6. Which of the following is the logical topology?
    1.  Star 
    2.  Bus
    3.  Tree
    4.  Both A and B

  7. Frames from one LAN can be transmitted to another LAN via the device ______.
    1.  Bridge
    2.  Repeater
    3.  Modem
    4.  Router 

  8. The method of communication in which transaction takes place in both directions,but only in one direction at a time, is called __________.
    1.  Full duplex
    2.  Simplex 
    3.  Four wire circuit  
    4.  Half-duplex

  9. Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
    1.  sh int serial 0 
    2.  show serial 0 controllers
    3.  show controllers serial 0
    4.  sh int s 0 

  10. Which of the following condition is used to transmit two packets over a medium at the same time?
    1.  Contention
    2.  Asynchronous
    3.  Synchronous
    4.  Collision