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  1. Which layer of the OSI reference model contains management application?
    No layer contains management applications. Management applications receive their first level of network support from the Applications layer.
  2. Which layer of the OSI reference model contians SNMP?
    SNMP is and Applications layer protocol
  3. How is the agent process distinguished from SNMP?
    The Agentprocess resides in the Applications layer. It or its subagents access object values for SNMP
  4. What is the function of the MIB on the Management Agent?
    The MIB on the Management Agent is a virtual database of object values that are available to a Management Station NMS via the software that maintains the object values.
  5. What is the function of the MIB on the management Station?
    The MIB on the Management Station is a database of Object Identifiers. These are used in VarBind pairs of a GetRequest PDU to identify the object whose value is being requested of the Agent process on the Management Agent.
  6. What fileds does the VarBindList in the SNMP PDU contain and what is the content of those fields?
    The VarBind list contains pairs of VarBind fields. As stated in Exercise #5, one of those fields contains the Object Identifier and the other contains the null if a value is being requested or the value in a GetResponse
  7. How many commands does SNMPv1 provide?
    SNMPv1 provides five commands.
  8. What is the purpose of the Trap command?
    The trap is an automated packet from an SNMP Agent Process. Its purpose is to inform the NMS on the Management Station of an event that occurred on the Management Agent hosting the Agent Process. Such an event could be that the Management Agent is powered up.
  9. Why is there a need for propietary MIBs?
    Proprietary MIBs provide objects specific to a device and that provide more detailed management information. Standard MIBs cannot provides such specialized objects for so many devices.
  10. How many objects does MIB-2 contain?
    The original MIB-2 contained 10 groups of objects containing 137 scalar and table objects when the transmission group is not included. The current standard Ethernet-like MIB in the transmission group contains 6 scalar and table objects. Table objects contain additional column objects. In addition, 13 extension groups have been added over time to MIB-2. So there is no simple answer to the question.
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2012-12-12 13:50:28

Chapter 6
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