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