Basic CS-Networks [3i Infotech Placement]: Sample Questions 60 - 61 of 90

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Question 60

Networks
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Write in Short

Short Answer▾

What is difference between routable and non-routable protocols?

Explanation

Difference between Routable and Non-Routable Protocols
RoutableNon-routable
Contains a network address as well as a device address.Contains only a device address and not a network address.
Work with a router and can be used to build large networks.Designed to work on small, local networks and cannot be used with a router
Allows packets to be forwarded from one network to another.Does not incorporate an addressing scheme for sending data from one network to another.
Examples:

TCP/IP, IPX, AppleTalk, SNA, XNS and DECnet.

Examples:

NetBIOS and DEC՚s LAT protocols.

Question 61

Networks
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Describe in Detail

Essay▾

An IP/IPX packet is received by a computer having both IP/IPX. How is the packet handled.

Explanation

Understanding of IP/IPX Protocol
  • Internetwork Packet Exchange/Sequenced Packet Exchange is a set of network protocols that provide packet switching and sequencing for small and large networks.
  • IPX works at layer three of the Open Systems Interconnection model and SPX works at layer 4.
    • IP, IPX is connectionless and contains end-user data, such as IP addresses.
    • IPX/SPX is compatible with local area networks (LAN) or private networks and different communication protocol functions.
    • SPX is connection-oriented and used for routing information and connection-related functions. Routing Information Protocol routes server information, which provides optimal data routing.
  • When the IP/IPX packet is received by a server, which can hander either, it read a field in the packet header to understand whether it is IP or IPX protocol.

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