Basic CS-Networks [3i Infotech Placement]: Sample Questions 26 - 27 of 90

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Question 26


Describe in Detail


What is source route?


Given Source Route Bridge Network
  • Source route refers to the sequence of IP address identifying the route a datagram must follow- provided by the source of sender.
  • A source route is optionally included in IP datagram header to specify the route that a packet should take through the network.
  • Allows easier troubleshooting, improved trace route, and enables a node to discover all the possible routes to a host.
  • The source route is for guidance- does not allow the source to directly manage network performance by forcing packets to travel over one path.

Uses of Source Routing

  • Troubleshoot a network
  • Map a network
  • Increase network performance
  • Unfortunately it can be used to hack a computer, carry out DoS attacks, snooping etc.

Question 27


Write in Short

Short Answer▾

What is cladding?


  • The plastic or glass sheath that is fused to and surrounds the core of an optical fiber.
  • It is a layer of a glass surrounding the centre fiber of glass inside a fiber-optic cable.
  • The cladding is covered with a protective outer jacket - placed on the exterior of wood frame and sash components providing ease of maintenance.
  • Common cladding materials include vinyl and extruded or roll-formed aluminium.

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