3.1 Given a scenario, troubleshoot common Windows OS issues.
Objective 3.1 sits in Software Troubleshooting, which carries 23% of the A+ Core 2 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.
Which TCP header flag, when set to 1, causes an abrupt session closure and immediate release of all connection resources?
The concept
TCP sessions can close either gracefully or abruptly, and the header flag involved determines which behavior occurs.
Why this answer
The RESET flag causes an immediate, abrupt closure that erases connection information right away, unlike a graceful closure.
- ASYN starts a session during the three way handshake, it does not close one.
- Correct: RESET forces an abrupt closure and immediate resource release.
- CFIN begins the four way graceful closure, which is a controlled process, not abrupt.
- DACK simply confirms receipt of data and is not used to close a session by itself.
Now you: objective 3.1 questions
No account needed. The explanation opens when you answer.
Sample question 1 of 3
In Task Manager, which process name corresponds to the Microsoft Defender Antivirus service that performs real time file scanning?
Sample question 2 of 3
After a TCP connection is established, a data packet is dropped in transit. A technician reviews a capture and sees the packet retransmitted multiple times before the source sends a session-ending segment. By default, how many retransmissions occur before this closure?
Sample question 3 of 3
A technician troubleshoots a failed connection to a file server on TCP port 445. The initial SYN is retransmitted three times with no response, and the destination side capture shows the SYN packets never arrive there. What should the technician conclude?
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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.