What can you use to retrieve a single value in SNMP? (Choose all that apply.)

SNMP (Simple Network Management Protocol) is a protocol that allows network managers to

monitor and control network devices using a set of standardized messages and data structures.

SNMP uses a client-server model, where the network manager (client) sends requests to the network

device (server) and receives responses. The network device has an SNMP agent that collects and

reports the data using a MIB (Management Information Base), which is a hierarchical database of

variables that describe the device’s status and configuration. Each variable in the MIB has a unique

identifier called an OID (Object Identifier), which is a dot-separated sequence of numbers that

follows a tree structure12.

To retrieve a single value in SNMP, you can use two types of requests: GET and GET NEXT. A GET

request asks for the value of a specific OID, and the SNMP agent responds with the value if it exists,

or an error if it does not. A GET NEXT request asks for the value of the next OID in the MIB tree, and

the SNMP agent responds with the value and the OID of the next variable, or an error if there is no

next variable. A GET NEXT request can be useful for discovering the OIDs and values of a device, or

for iterating over a table of values34.

A GET VALUE request is not a valid SNMP request, and a GET TABLE request is not a single request,

but a series of GET NEXT requests that retrieve all the values in a table . Reference: 1: SNMP

Basics, 2: SNMP Tutorial Part 1 – Understanding MIBs and OIDs, 3: SNMP Tutorial Part 2 – SNMP Get,

GetNext, GetBulk, 4: SNMP Commands, : SNMP Table Operations, : SNMP Table Retrieval