Provide a local workspace with many small random reads and writes.
Prioritize low latency without mechanical head movement.
Which medium is generally most suitable?
An SSD has no mechanical seek and generally provides lower random-I/O latency than an HDD. Endurance, capacity, and interface also matter.
Detailed explanation
yumdownloader httpdCorrect. Flash storage avoids mechanical seek and is suited to low-latency random I/O.
Correct. Flash storage avoids mechanical seek and is suited to low-latency random I/O.
yum install httpdIncorrect. Rotational media and head movement increase random-access latency.
Incorrect. Rotational media and head movement increase random-access latency.
yum info httpdIncorrect. Optical media suits distribution and archival rather than frequent random writes.
Incorrect. Optical media suits distribution and archival rather than frequent random writes.
yum makecache httpdIncorrect. Tape is designed for sequential backup access.
Incorrect. Tape is designed for sequential backup access.
Try it yourself
An example you can run in a temporary verification environment.
yumdownloader --help | sed -n '1,12p'Expected result
yumdownloaderの使用法と--destdir等のオプションKey points
- SSD has no mechanical seek
- HDD uses rotating media
- Consider endurance and cost
Notes
- Environment: yum-utilsのyumdownloader / ヘルプ表示のみ
- Command output formatting can vary slightly by distribution or tool version.
- Run the example in a temporary directory or process when possible.
Foundation review
Read the scope first
Check whether the command acts on the current shell, a new process, an existing process, or a file.
Verify the observable result
Use the supplied command and compare the output with the expected result.