PASS GUARANTEED QUIZ COMPTIA - XK0-005 - EFFICIENT EXAM COMPTIA LINUX+ CERTIFICATION EXAM ONLINE

Pass Guaranteed Quiz CompTIA - XK0-005 - Efficient Exam CompTIA Linux+ Certification Exam Online

Pass Guaranteed Quiz CompTIA - XK0-005 - Efficient Exam CompTIA Linux+ Certification Exam Online

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CompTIA XK0-005 certification exam is suitable for both beginners and experienced IT professionals who want to demonstrate their expertise in Linux administration. XK0-005 exam is ideal for individuals who are looking to advance their careers in the IT industry and want to specialize in Linux administration. CompTIA Linux+ Certification Exam certification exam provides a strong foundation for IT professionals to build on and further specialize in Linux system administration.

CompTIA XK0-005, also known as the CompTIA Linux+ Certification Exam, is a vendor-neutral certification exam designed to validate the skills and knowledge of candidates who want to work with Linux operating systems. XK0-005 exam is intended for those who have experience with Linux and want to advance their careers in the field of IT. CompTIA Linux+ Certification Exam certification demonstrates that candidates have a strong understanding of Linux system administration and can manage and troubleshoot Linux systems in a professional setting.

CompTIA XK0-005 Certification Exam is ideal for individuals who wish to advance their careers in information technology, including network administrators, system administrators, cybersecurity professionals, and software developers. It is designed to provide candidates with foundational skills to work with Linux systems and boost their employment opportunities within the IT industry. Besides, this certification proves that an individual upholds the highest standards of IT professionalism and has the knowledge and commitment to stay up to date with the latest technological advancements.

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CompTIA Linux+ Certification Exam Sample Questions (Q299-Q304):

NEW QUESTION # 299
Which of the following is the best tool for dynamic tuning of kernel parameters?

  • A. tune2fs
  • B. tuned-adm
  • C. tuned
  • D. turbostat

Answer: C

Explanation:
The tuned application is the best tool for dynamic tuning of kernel parameters, as it monitors the system and optimizes the performance under different workloads. It provides a number of predefined profiles for typical use cases, such as power saving, low latency, high throughput, virtual machine performance, and so on. It also allows users to create, modify, and delete profiles, and to switch between them on the fly. The tuned application uses the sysctl command and the configuration files in the /etc/sysctl.d/ directory to adjust the kernel parameters at runtime.
References
Chapter 2. Getting started with TuneD - Red Hat Customer Portal, paragraph 1 Kernel tuning with sysctl - Linux.com, paragraph 1


NEW QUESTION # 300
A Linux engineer needs to download a ZIP file and wants to set the nice of value to -10 for this new process. Which of the following commands will help to accomplish the task?

  • A. $ renice -v -10 wget https://foo.com/installation.2ip
  • B. $ nice -v -10 wget https://foo.com/installation.zip
  • C. $ renice -10 wget https://foo.com/installation.zip
  • D. $ nice -10 wget https://foo.com/installation.zip

Answer: D


NEW QUESTION # 301
A Linux server is not starting up because files in the /boot/ partition are corrupt. After the initial GRUB screen, the following message is displayed:
vbnet
Probing EDD (edd=off to disable)... ok
uncompression error
-system halted
Which of the following steps should the Linux administrator take to recover the system without destroying the existing installation? (Selecttwo.)

  • A. Increase the amount of swap memory.
  • B. Reinstall the kernel packages.
  • C. Start up the system using rescue boot media.
  • D. Replace the hard drive.
  • E. Reinstall the OS.
  • F. Start up in single-user mode.

Answer: B,C

Explanation:
* The error indicates corrupted kernel/initrd files.
* Booting viarescue media(D) allows recovery without data loss.
* Once in rescue, the administrator canreinstall kernel packages(E) to restore /boot.
* Single-user mode (C) won't work unless the kernel loads.
* Replacing hardware or reinstalling the OS (A, F) is excessive and unnecessary.
* Swap (B) is unrelated to kernel boot issues.
Reference:CompTIA Linux+ XK0-005 Study Guide, Domain 5.0 - Troubleshooting
"Use rescue media to recover from boot failures and reinstall missing kernel components if /boot or initramfs is corrupted."


NEW QUESTION # 302
A Linux administrator cloned an existing Linux server and built a new server from that clone. The administrator encountered the following error after booting the cloned server:

The administrator performed the commands listed below to further troubleshoot and mount the missing filesystem:

Which of the following should administrator use to resolve the device mismatch issue and mount the disk?

  • A. mount disk by device-id
  • B. mount disk by-blkid
  • C. mount disk by-label
  • D. fsck -A

Answer: A

Explanation:
Explanation
The administrator should use the command mount disk by device-id to resolve the device mismatch issue and mount the disk. The issue is caused by the cloned server having a different device name for the disk than the original server. The output of blkid shows that the disk has the device name /dev/sdb1 on the cloned server, but the output of cat /etc/fstab shows that the disk is expected to have the device name /dev/sda1. The command mount disk by device-id will mount the disk by using its unique identifier (UUID) instead of its device name. The UUID can be obtained from the output of blkid or lsblk -f. The command will mount the disk to the specified mount point (/data) and resolve the issue. The other options are incorrect because they either do not mount the disk (fsck -A), do not use the correct identifier (mount disk by-label or mount disk by-blkid), or do not exist (mount disk by-blkid). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 10: Managing Storage, pages 318-319.


NEW QUESTION # 303
A Linux administrator is helping the security team troubleshoot an SELinux policy violation incident. Which of the following would be the BEST utility command to display SELinux violation and AVC denial messages?

  • A. journalctl | grep sealert
  • B. aureport | grep AVC
  • C. sealert -a /var/log/audit/audit.log
  • D. cat /var/log/messages | grep selinux

Answer: C

Explanation:
You can investigate SELinux issues without any tools by opening the audit log it generates. This log is found at /var/log/audit/audit.log.
To run sealert from the command-line, we need to point it to the SELinux audit log.
sealert -a /var/log/audit/audit.log


NEW QUESTION # 304
......

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