3.2 Given a scenario, use network monitoring technologies.
Objective 3.2 sits in Network Operations, which carries 19% of the Network+ exam. The questions below are original, written from the official objective title above, and each explanation cites the CompTIA page it rests on.
Objective title verbatim from the official objectives. CompTIA exam page ↗
A worked example
Shown solved, with the whole explanation open: this is what every question here carries.
According to RFC 1157, which SNMP PDU type does an agent use to notify a network management station about a significant event without waiting for a poll from that station?
The concept
RFC 1157 defines five PDU types for SNMP exchanges, and the Trap-PDU is the only one that is unsolicited, sent by the agent rather than requested by the manager.
Why this answer
The Trap-PDU exists specifically so an agent can report events such as interface changes or restarts to the management station on its own initiative, matching the scenario described.
- ASetRequest-PDU is initiated by the manager to alter a value on the agent, the opposite direction of communication described here.
- BGetRequest-PDU is initiated by the manager to poll a value, not sent by the agent to report an event.
- CGetResponse-PDU is the agent's reply to a Get or Set request, meaning it is solicited rather than unsolicited.
- Correct. Trap-PDU is the unsolicited notification an agent sends to report an event to the manager.
Now you: objective 3.2 questions
No account needed. The explanation opens when you answer.
Sample question 1 of 3
A security analyst captures raw syslog packets and inspects the bracketed value that appears before the timestamp in each message. Per RFC 3164, what information is carried inside this value?
Sample question 2 of 3
During a network outage, an administrator finds several expected syslog entries missing from the central collector, with no error reported by any sending device. Which characteristic of the BSD syslog protocol explains this gap?
Sample question 3 of 3
An engineer wants to step through every row of a router's routing table one entry at a time without knowing each object's exact identifier in advance. Which SNMP PDU accomplishes this?
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Read the sources
These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.