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Objective 2.8220-1201

2.8 Explain networking tools and their purposes.

Objective 2.8 sits in Networking, which carries 23% of the A+ Core 1 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.

2-8NetworkingModerate

A line of business application times out against a database server a few times an hour, with nothing useful in its own log. What should the technician collect?

A driver verifier traceVerifier stresses kernel drivers and is aimed at crash analysis rather than connectivity.
A performance counter logCounters describe load on one machine and never show what happened on the wire.
A memory dump of the appA dump captures the process at one instant, which says nothing about the path between hosts.
A network packet captureCorrect · your answerCorrect. It is the recommended first collection for a suspected network fault.

Correct.

Concept

An intermittent failure between two hosts is only decidable from the traffic itself, because the record of what left one machine and what arrived at the other is the evidence no application log holds.

Why D

Once the frames are recorded they can be filtered down to the one failing conversation, which is what turns a timeout report into an identified cause.

Source

#packet-capture#tools#troubleshooting

Now you: objective 2.8 questions

No account needed. The explanation opens when you answer.

Sample question 1 of 3

2-8NetworkingEasy

A capture shows SYN packets arriving at a server that never answers them. Which command on that server confirms whether the port is accepting connections?

Sample question 2 of 3

2-8NetworkingHard

A technician wants to know how many times this build of Windows retries an unanswered SYN before giving up. Which command reports that setting?

Sample question 3 of 3

2-8NetworkingHard

Auditing shows the local filtering platform dropping traffic on one port, and the Security log records a filter ID. What turns that ID into a rule name?

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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.

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