1 Comment

1. 

   AYESHA MUMTAZ on February 8, 2019 at 4:46 pm

   Question no. 31 (2 Marks)
   Find the class in 00000001.001011.1001.111
   Answer: (Page 87)
   Class A
   Question no. 32 (2 Marks)
   What is the difference between unicast and multicast?
   Answer:- (Page 114)
   Unicast is used for single destination computer while multicast is used for multiple destinations
   Question no. 33 (2 Marks)
   What is the basic concept of Twice NAT (Network Address Translation)?
   Answer:- rep
   Question no. 34 (2 Marks)
   What is the role of DMA in NIC?
   Answer:- (Page 34)
   It may use DMA to copy frame data directly from main memory and copy data directly into main memory.
   Question no. 35 (2 Marks)
   What is the function of Hope count matrix in routing information protocol?
   Answer:- Click here for detail
   RIP uses a hop count metric to measure the distance to a destination
   16
   Question no. 36 (Marks2)
   What is the scale or level of requirement in of IPv6?
   Answer:- (Page 110)
   Scale is also dramatically changed. Size from a few tens to a few tens of millions of computers has been
   revolutionized. Speed has increased from 56Kbps to 1Gbps. Also there is an increased frame size in hardware.
   Question No: 37 (3 Marks)
   Change the following into equivalent binary
   154.31.161.13
   202.32.15.7
   192.168.1.5
   154.31.161.13
   Answer:
   Binary: 10011010 00011111 10100001 00001101
   202.32.15.7
   Answer:
   Binary: 11001010 00100000 00001111 00000111
   192.168.1.5
   Answer:
   Binary: 11000000 10101000 00000001 00000101
   Question No: 38 (3 Marks)
   What is the meaning of Facilities for Transit Routing as a characteristic of the Border Gateway
   Protocol?
   Answer:- Click here for Detail
   Facilities For Transit Routing
   classifies each AS as a transit system if it agrees to pass traffic through, or as a stub system if it does not BGP
   allows a corporation to classify itself as a stub even if it is multi-homed (refuse to accept transit traffic)
   Question No: 39 (3 Marks)
   In internet routing how does a host join or leave a group?
   Answer:- rep