Which feature can you use to restrict SNMP queries to a specific OID tree?
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The feature that can be used to restrict SNMP queries to a specific OID tree is a "view record".
SNMP (Simple Network Management Protocol) is a protocol used to manage and monitor network devices. SNMP agents store management information in a Management Information Base (MIB), which is organized as a hierarchical tree structure of object identifiers (OIDs). SNMP queries can be used to retrieve information from this MIB.
A view record is a set of rules that determine what information can be accessed via SNMP. It can be used to restrict SNMP queries to a specific OID tree by defining a subset of the MIB that can be accessed by a particular SNMP community or user.
For example, if an administrator wants to restrict SNMP queries to only the interfaces on a router, a view record can be created that allows read access only to the OID tree that contains interface information. This would prevent SNMP queries from accessing other parts of the MIB, such as system or routing information.
Therefore, a view record is the correct answer to the question as it allows the restriction of SNMP queries to a specific OID tree. Other options such as a server group, a community, or an access group may provide other security measures for SNMP, but they do not specifically restrict queries to a specific OID tree.