Basic CS-Networks [3i Infotech Placement]: Sample Questions 42 - 43 of 90

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Question 42

Networks
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Describe in Detail

Essay▾

What is role of SNMP within network management?

Explanation

Define SNMP Network Managemant
  • Simple network management protocol (SNMP) popular protocol for network management.
  • Collects information like configuration from network device like hubs, switches, and routers.
  • Wildly used for network monitoring.
  • Exposes management data in the form of variables on managed systems organized in a management information base, which define the system status.
  • Three significant versions of SNMP have been developed and deployed.
    • SNMPv1 is the original version of the protocol.
    • Versions SNMPv2c and SNMPv3 improve performance, flexibility and security.
  • Network profiled by SNMP mainly consist of devices containing SNMP agents.
    • Agent is program gathering information about hardware- organizing it into predefined entries, and responding to queries using the SNMP protocol.

Question 43

Networks
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Describe in Detail

Essay▾

Explain SNMP.

Explanation

Understanding of SNMP
  • Simple network management protocol is a framework for managing devices using TCP/IP protocol suit.
  • Provides fundamental operations for monitoring and maintaining internet devices- widely accepted protocols to manage and monitor network elements.
  • Uses several administrative computers, called managers- groups of networked computers and associated devices.
  • Components Management in the Internet can also be using other protocols.
  • At the top level, management is accomplished with two protocols:
    • Structure of Management Information (SMI)
    • Management Information Base (MIB)

SMI:

  • SMI component is used in network management.
  • Functions are to:
    • Name objects
    • Define the type of data that can be stored in an object
    • Describe the encoding of data for transmission over the network.

MIB:

  • Second component used in network management.
  • Collection of all the objects that the manager can manage.
  • Objects in the MIB categorized under eight different groups.

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