LPIC-1 Shells, Scripting and Data Management Practice Question
This LPIC-1 practice question tests your understanding of shells, scripting and data management. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The script is not executable.
C is correct because cron jobs require the script to be executable (i.e., have the execute permission bit set). If the script is not executable, cron will fail to run it even if the shebang line and PATH are correct. The error typically appears in the cron log or as a silent failure.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The cron job lacks the PATH environment variable.
Why it's wrong here
The cron job specifies the full path to the script.
✗
The script is owned by root, but the cron job runs as a different user.
Why it's wrong here
Cron runs as root, matching the owner.
✓
The script is not executable.
Why this is correct
The file permissions do not include execute for the owner.
Related concept
Read the scenario before looking for a memorised answer.
✗
The script lacks a shebang line.
Why it's wrong here
A shebang is not required for cron if the script is executable.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume a missing shebang line is the fatal error, but cron actually fails due to the missing execute permission, not the shebang.
Detailed technical explanation
How to think about this question
Under the hood, cron uses execve() to run the job, which requires the file to have execute permission for the user. If the script lacks the executable bit, execve() returns EACCES and the job fails silently unless logging is enabled. In real-world scenarios, administrators often forget to set the execute bit after editing a script, leading to mysterious failures that are only visible in /var/log/cron or syslog.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Shells, Scripting and Data Management — This question tests Shells, Scripting and Data Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The script is not executable. — C is correct because cron jobs require the script to be executable (i.e., have the execute permission bit set). If the script is not executable, cron will fail to run it even if the shebang line and PATH are correct. The error typically appears in the cron log or as a silent failure.
What should I do if I get this LPIC-1 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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