CORRECT XK0-005 CERTIFICATION MATERIALS & MARVELOUS LATEST XK0-005 LEARNING MATERIALS & PRECISE COMPTIA COMPTIA LINUX+ CERTIFICATION EXAM

Correct XK0-005 Certification Materials & Marvelous Latest XK0-005 Learning Materials & Precise CompTIA CompTIA Linux+ Certification Exam

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CompTIA Linux+ Certification Exam Sample Questions (Q744-Q749):

NEW QUESTION # 744
A systems administrator created a user cron to run a scheduled database backup cronjob on the server at 1 a.m. every day. The following is the cronjob syntax:
0 1 * * * /bin/sh backup.sh
The backups, however, are not being created.
When checking the crontab file, the administrator sees the following error:
/var/spool/cron/crontab/cron: Permission denied
Which of the following will permit the cronjob to execute?

  • A. Running sudo cron restart to activate the cronjob
  • B. Giving cron ownership of the file /usr/bin/crontab
  • C. Creating the file cron.allow and adding user cron to it
  • D. Running sudo crontab -u cron -e to edit the file with sudo

Answer: C

Explanation:
The error indicates that the cron user does not have permission to run the cronjob. Creating a cron.allow file and adding the user cron to it will allow that user to run cronjobs. The cron.allow file is a security feature that controls which users are allowed to use cron.


NEW QUESTION # 745
A Linux administrator is troubleshooting an issue in which an application service failed to start on a Linux server. The administrator runs a few commands and gets the following outputs:

Based on the above outputs, which of the following is the MOST likely action the administrator should take to resolve this issue?

  • A. Update the KillSignal configuration for the logsearch.service to use TERM.
  • B. Update the OnCalendar configuration to schedule the start of the logsearch.service.
  • C. Increase the TimeoutStartUSec configuration for the logsearch.sevice.
  • D. Enable the logsearch.service and restart the service.

Answer: C

Explanation:
Explanation
The administrator should increase the TimeoutStartUSec configuration for the logsearch.service to resolve the issue. The output of systemctl status logsearch.service shows that the service failed to start due to a timeout.
The output of cat /etc/systemd/system/logsearch.service shows that the service has a TimeoutStartUSec configuration of 10 seconds, which might be too short for the service to start. The administrator should increase this value to a higher number, such as 30 seconds or 1 minute, and then restart the service. The other options are incorrect because they are not related to the issue. The service is already enabled, as shown by the output of systemctl is-enabled logsearch.service. The service does not use an OnCalendar configuration, as it is not a timer unit. The service does not use a KillSignal configuration, as it is not being killed by a signal. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 14: Managing Processes and Scheduling Tasks, pages 434-435.


NEW QUESTION # 746
A Linux administrator updated the configuration file for the httpd web service. The administrator needs to apply the updated changes to the service without interrupting any running sessions.
Which of the following commands should the administrator run to accomplish this task?

  • A. systemctl restart httpd
  • B. systemctl reload httpd
  • C. systemctl mask httpd
  • D. systemctl status httpd

Answer: B

Explanation:
The systemctl reload httpd command reloads the Apache HTTP server configuration without terminating any existing connections. This is ideal for applying configuration changes without disrupting the current web traffic, ensuring seamless operation.


NEW QUESTION # 747
A systems administrator is tasked with creating a cloud-based server with a public IP address.

Which of the following technologies did the systems administrator use to complete this task?

  • A. Puppet
  • B. Terraform
  • C. Ansible
  • D. Git

Answer: B

Explanation:
Explanation
The systems administrator used Terraform to create a cloud-based server with a public IP address. Terraform is a tool for building, changing, and versioning infrastructure as code. Terraform can create and manage resources on different cloud platforms, such as AWS, Azure, or Google Cloud. Terraform uses a declarative syntax to describe the desired state of the infrastructure and applies the changes accordingly. Terraform can also assign a public IP address to a cloud server by using the appropriate resource attributes. This is the correct technology that the systems administrator used to complete the task. The other options are incorrect because they are either not designed for creating cloud servers (Puppet or Git) or not capable of assigning public IP addresses (Ansible). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 19:
Managing Cloud and Virtualization Technologies, page 559.


NEW QUESTION # 748
While inspecting a recently compromised Linux system, the administrator identified a number of processes that should not have been running:

Which of the following commands should the administrator use to terminate all of the identified processes?

  • A. pkill -9 -f "upload*.sh"
  • B. skill -9 "upload*.sh"
  • C. killall -9 -upload*.sh"
  • D. kill -9 "upload*.sh"

Answer: A

Explanation:
Explanation
The pkill -9 -f "upload*.sh" command will terminate all of the identified processes. This command will send a SIGKILL signal (-9) to all processes whose full command line matches the pattern "upload*.sh" (-f). This signal will force the processes to terminate immediately without giving them a chance to clean up or save their state. The kill -9 "upload*.sh" command is invalid, as kill requires a process ID (PID), not a pattern. The killall -9 "upload*.sh" command is incorrect, as killall requires an exact process name, not a pattern. The skill
-9 "upload*.sh" command is incorrect, as skill requires a username or a session ID (SID), not a pattern. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 15: Managing Memory and Process Execution, page 470.


NEW QUESTION # 749
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