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Exam Code: 010-160

Exam Name Linux Essentials Certificate Exam, version 1.6

Certification Provider: LPI

Corresponding Certification: Linux Essentials

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Linux Essentials Certificate Exam, version 1.6 (010-160) Practice Tests

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LPI 010-160 Practice Test 46

Question 450

An operator follows this instruction: Run top. For the task described as "live process monitoring", what is the most accurate expected result?

  1. free summarizes physical and swap memory metrics in human-readable units.
  2. top interactively refreshes process and resource utilization statistics.
  3. dmesg reads the kernel message buffer, subject to system access restrictions.
  4. du reports disk usage for directory contents and -s summarizes one total.

Explanation

Correct Answer

B:

Correct consequence of Run top. This outcome explains its use for live process monitoring.

Incorrect Answers

A:

This outcome belongs to memory availability overview and would follow Run free -h; it is not the principal result of Run top.

C:

This outcome belongs to kernel ring-buffer messages and would follow Inspect dmesg output where permitted; it is not the principal result of Run top.

D:

This outcome belongs to directory disk-usage summary and would follow Run du -sh project/; it is not the principal result of Run top.

Question 451

A technician needs a repeatedly updated view of CPU usage by active processes. A teammate tries this different approach instead: Run free -h. The requirement is still unmet. Which corrective action should replace the misapplied approach?

  1. Run free -h
  2. Inspect dmesg output where permitted
  3. Run top
  4. Run du -sh project/

Explanation

Correct Answer

C:

Replace the attempt with this step: top interactively refreshes process and resource utilization statistics. It fits live process monitoring.

Incorrect Answers

A:

This step is specific to memory availability overview: free summarizes physical and swap memory metrics in human-readable units. It does not fix the stated requirement for live process monitoring.

B:

This step is specific to kernel ring-buffer messages: dmesg reads the kernel message buffer, subject to system access restrictions. It does not fix the stated requirement for live process monitoring.

D:

This step is specific to directory disk-usage summary: du reports disk usage for directory contents and -s summarizes one total. It does not fix the stated requirement for live process monitoring.

Question 452

A technician needs a repeatedly updated view of CPU usage by active processes. One student proposes Run top and another proposes Inspect dmesg output where permitted. Which technical comparison is the soundest?

  1. Inspect dmesg output where permitted is more directly suited to live process monitoring than Run top, regardless of the stated constraint.
  2. The two actions are interchangeable for live process monitoring and necessarily have the same main result.
  3. Run du -sh project/ is the only useful action for live process monitoring; Run top has no relevant effect.
  4. Run top is used because top interactively refreshes process and resource utilization statistics. The alternative Inspect dmesg output where permitted addresses kernel ring-buffer messages instead.

Explanation

Correct Answer

D:

Correct distinction: Run top targets live process monitoring; top interactively refreshes process and resource utilization statistics. The compared alternative instead serves kernel ring-buffer messages.

Incorrect Answers

A:

Incorrect mapping: Inspect dmesg output where permitted is used for kernel ring-buffer messages. It does not displace Run top for the described requirement.

B:

The mechanisms are different: top interactively refreshes process and resource utilization statistics. By contrast, dmesg reads the kernel message buffer, subject to system access restrictions. They are not universally interchangeable.

C:

The third option addresses directory disk-usage summary: du reports disk usage for directory contents and -s summarizes one total. The original action remains relevant because top interactively refreshes process and resource utilization statistics.

Question 453

A user wants to see total and available system memory in human-readable units. Which action most directly addresses this requirement on a Linux-related system?

  1. Inspect dmesg output where permitted
  2. Run free -h
  3. Run du -sh project/
  4. Inspect the relevant file under /etc/

Explanation

Correct Answer

B:

Correct for memory availability overview: free summarizes physical and swap memory metrics in human-readable units.

Incorrect Answers

A:

This action targets kernel ring-buffer messages: dmesg reads the kernel message buffer, subject to system access restrictions. The stated task instead calls for memory availability overview.

C:

This action targets directory disk-usage summary: du reports disk usage for directory contents and -s summarizes one total. The stated task instead calls for memory availability overview.

D:

This action targets system configuration under etc: The /etc hierarchy conventionally stores host-specific system configuration. The stated task instead calls for memory availability overview.

Question 454

An operator follows this instruction: Run free -h. For the task described as "memory availability overview", what is the most accurate expected result?

  1. dmesg reads the kernel message buffer, subject to system access restrictions.
  2. du reports disk usage for directory contents and -s summarizes one total.
  3. free summarizes physical and swap memory metrics in human-readable units.
  4. The /etc hierarchy conventionally stores host-specific system configuration.

Explanation

Correct Answer

C:

Correct consequence of Run free -h. This outcome explains its use for memory availability overview.

Incorrect Answers

A:

This outcome belongs to kernel ring-buffer messages and would follow Inspect dmesg output where permitted; it is not the principal result of Run free -h.

B:

This outcome belongs to directory disk-usage summary and would follow Run du -sh project/; it is not the principal result of Run free -h.

D:

This outcome belongs to system configuration under etc and would follow Inspect the relevant file under /etc/; it is not the principal result of Run free -h.

Question 455

A user wants to see total and available system memory in human-readable units. A teammate tries this different approach instead: Inspect dmesg output where permitted. The requirement is still unmet. Which corrective action should replace the misapplied approach?

  1. Inspect dmesg output where permitted
  2. Run du -sh project/
  3. Inspect the relevant file under /etc/
  4. Run free -h

Explanation

Correct Answer

D:

Replace the attempt with this step: free summarizes physical and swap memory metrics in human-readable units. It fits memory availability overview.

Incorrect Answers

A:

This step is specific to kernel ring-buffer messages: dmesg reads the kernel message buffer, subject to system access restrictions. It does not fix the stated requirement for memory availability overview.

B:

This step is specific to directory disk-usage summary: du reports disk usage for directory contents and -s summarizes one total. It does not fix the stated requirement for memory availability overview.

C:

This step is specific to system configuration under etc: The /etc hierarchy conventionally stores host-specific system configuration. It does not fix the stated requirement for memory availability overview.

Question 456

A user wants to see total and available system memory in human-readable units. One student proposes Run free -h and another proposes Run du -sh project/. Which technical comparison is the soundest?

  1. Run free -h is used because free summarizes physical and swap memory metrics in human-readable units. The alternative Run du -sh project/ addresses directory disk-usage summary instead.
  2. Run du -sh project/ is more directly suited to memory availability overview than Run free -h, regardless of the stated constraint.
  3. The two actions are interchangeable for memory availability overview and necessarily have the same main result.
  4. Inspect the relevant file under /etc/ is the only useful action for memory availability overview; Run free -h has no relevant effect.

Explanation

Correct Answer

A:

Correct distinction: Run free -h targets memory availability overview; free summarizes physical and swap memory metrics in human-readable units. The compared alternative instead serves directory disk-usage summary.

Incorrect Answers

B:

Incorrect mapping: Run du -sh project/ is used for directory disk-usage summary. It does not displace Run free -h for the described requirement.

C:

The mechanisms are different: free summarizes physical and swap memory metrics in human-readable units. By contrast, du reports disk usage for directory contents and -s summarizes one total. They are not universally interchangeable.

D:

The third option addresses system configuration under etc: The /etc hierarchy conventionally stores host-specific system configuration. The original action remains relevant because free summarizes physical and swap memory metrics in human-readable units.

Question 457

A technician needs recent kernel-reported device initialization messages after hardware connects. Which action most directly addresses this requirement on a Linux-related system?

  1. Run du -sh project/
  2. Inspect the relevant file under /etc/
  3. Inspect dmesg output where permitted
  4. Inspect appropriate log files under /var/log/

Explanation

Correct Answer

C:

Correct for kernel ring-buffer messages: dmesg reads the kernel message buffer, subject to system access restrictions.

Incorrect Answers

A:

This action targets directory disk-usage summary: du reports disk usage for directory contents and -s summarizes one total. The stated task instead calls for kernel ring-buffer messages.

B:

This action targets system configuration under etc: The /etc hierarchy conventionally stores host-specific system configuration. The stated task instead calls for kernel ring-buffer messages.

D:

This action targets persistent system logs: The /var/log hierarchy commonly contains persistent service and system log files. The stated task instead calls for kernel ring-buffer messages.

Question 458

An operator follows this instruction: Inspect dmesg output where permitted. For the task described as "kernel ring-buffer messages", what is the most accurate expected result?

  1. du reports disk usage for directory contents and -s summarizes one total.
  2. The /etc hierarchy conventionally stores host-specific system configuration.
  3. The /var/log hierarchy commonly contains persistent service and system log files.
  4. dmesg reads the kernel message buffer, subject to system access restrictions.

Explanation

Correct Answer

D:

Correct consequence of Inspect dmesg output where permitted. This outcome explains its use for kernel ring-buffer messages.

Incorrect Answers

A:

This outcome belongs to directory disk-usage summary and would follow Run du -sh project/; it is not the principal result of Inspect dmesg output where permitted.

B:

This outcome belongs to system configuration under etc and would follow Inspect the relevant file under /etc/; it is not the principal result of Inspect dmesg output where permitted.

C:

This outcome belongs to persistent system logs and would follow Inspect appropriate log files under /var/log/; it is not the principal result of Inspect dmesg output where permitted.

Question 459

A technician needs recent kernel-reported device initialization messages after hardware connects. A teammate tries this different approach instead: Run du -sh project/. The requirement is still unmet. Which corrective action should replace the misapplied approach?

  1. Inspect dmesg output where permitted
  2. Run du -sh project/
  3. Inspect the relevant file under /etc/
  4. Inspect appropriate log files under /var/log/

Explanation

Correct Answer

A:

Replace the attempt with this step: dmesg reads the kernel message buffer, subject to system access restrictions. It fits kernel ring-buffer messages.

Incorrect Answers

B:

This step is specific to directory disk-usage summary: du reports disk usage for directory contents and -s summarizes one total. It does not fix the stated requirement for kernel ring-buffer messages.

C:

This step is specific to system configuration under etc: The /etc hierarchy conventionally stores host-specific system configuration. It does not fix the stated requirement for kernel ring-buffer messages.

D:

This step is specific to persistent system logs: The /var/log hierarchy commonly contains persistent service and system log files. It does not fix the stated requirement for kernel ring-buffer messages.

Question 460

A technician needs recent kernel-reported device initialization messages after hardware connects. One student proposes Inspect dmesg output where permitted and another proposes Inspect the relevant file under /etc/. Which technical comparison is the soundest?

  1. Inspect the relevant file under /etc/ is more directly suited to kernel ring-buffer messages than Inspect dmesg output where permitted, regardless of the stated constraint.
  2. Inspect dmesg output where permitted is used because dmesg reads the kernel message buffer, subject to system access restrictions. The alternative Inspect the relevant file under /etc/ addresses system configuration under etc instead.
  3. The two actions are interchangeable for kernel ring-buffer messages and necessarily have the same main result.
  4. Inspect appropriate log files under /var/log/ is the only useful action for kernel ring-buffer messages; Inspect dmesg output where permitted has no relevant effect.

Explanation

Correct Answer

B:

Correct distinction: Inspect dmesg output where permitted targets kernel ring-buffer messages; dmesg reads the kernel message buffer, subject to system access restrictions. The compared alternative instead serves system configuration under etc.

Incorrect Answers

A:

Incorrect mapping: Inspect the relevant file under /etc/ is used for system configuration under etc. It does not displace Inspect dmesg output where permitted for the described requirement.

C:

The mechanisms are different: dmesg reads the kernel message buffer, subject to system access restrictions. By contrast, The /etc hierarchy conventionally stores host-specific system configuration. They are not universally interchangeable.

D:

The third option addresses persistent system logs: The /var/log hierarchy commonly contains persistent service and system log files. The original action remains relevant because dmesg reads the kernel message buffer, subject to system access restrictions.