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XK0-005 Reliable Exam Answers | XK0-005 Related Content

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XK0-005 Reliable Exam Answers | XK0-005 Related Content

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The CompTIA Linux+ Certification Exam certification exam consists of multiple-choice questions and performance-based simulations that assess the candidate's practical knowledge and skills. XK0-005 exam is available in English and Japanese languages and can be taken online or in-person at a Pearson VUE testing center. CompTIA Linux+ Certification Exam certification exam has a duration of 90 minutes, and the passing score is 720 on a scale of 100-900.
CompTIA Linux+ certification exam is an essential certification for professionals who want to pursue a career in Linux system administration. It validates the skills and knowledge required to manage and troubleshoot Linux systems, and it is recognized globally by various organizations and companies. To pass the exam, candidates must have a good understanding of Linux command line, file system, user management, network configuration, and shell scripting, and they should prepare using various resources, including books, online courses, and hands-on experience.
To become certified, candidates must pass the CompTIA XK0-005 Exam, which is available in English, Japanese, and Portuguese. XK0-005 exam is intended for IT professionals who have at least 12 months of experience working with Linux systems, as well as a basic understanding of computer hardware and networking concepts.
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CompTIA Linux+ Certification Exam Sample Questions (Q254-Q259):NEW QUESTION # 254
A systems administrator is deploying three identical, cloud-based servers. The administrator is using the following code to complete the task:

Which of the following technologies is the administrator using?
  • A. Chef
  • B. Terraform
  • C. Ansible
  • D. Puppet
Answer: B
Explanation:
The code snippet is written in Terraform language, which is a tool for building, changing, and versioning infrastructure as code. Terraform uses a declarative syntax to describe the desired state of the infrastructure and applies the changes accordingly. The code defines a resource of type aws_instance, which creates an AWS EC2 instance, and sets the attributes such as the AMI ID, instance type, security group IDs, and key name. The code also uses a count parameter to create three identical instances and assigns them different names using the count.index variable. This is the correct technology that the administrator is using. The other options are incorrectbecause they use different languages and syntaxes for infrastructure as code. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 19: Managing Cloud and Virtualization Technologies, page 559.

NEW QUESTION # 255
An administrator added the port 2222 for the SSH server on myhost and restarted the SSH server. The administrator noticed issues during the startup of the service. Given the following outputs:

Which of the following commands will fix the issue?
  • A. chcon system_ubject_r:ssh_home_t /etc/ssh/*
  • B. semanage port -a -t ssh_port_t -p tcp 2222
  • C. firewall-cmd -- zone=public -- add-port=2222/tcp
  • D. iptables -A INPUT -p tcp -- dport 2222 -j ACCEPT
Answer: B
Explanation:
The correct answer is A. semanage port -a -t ssh_port_t -p tcp 2222
This command will allow the SSH server to bind to port 2222 by adding it to the SELinux policy. The semanage command is a utility for managing SELinux policies. The port subcommand is used to manage network port definitions. The -a option is used to add a new record, the -t option is used to specify the SELinux type, the -p option is used to specify the protocol, and the tcp 2222 argument is used to specify the port number. The ssh_port_t type is the default type for SSH ports in SELinux.
The other options are incorrect because:
B: chcon system_ubject_r:ssh_home_t /etc/ssh/*
This command will change the SELinux context of all files under /etc/ssh/ to system_ubject_r:ssh_home_t, which is not correct. The ssh_home_t type is used for user home directories that are accessed by SSH, not for SSH configuration files. The correct type for SSH configuration files is sshd_config_t.
C: iptables -A INPUT -p tcp --dport 2222 -j ACCEPT
This command will add a rule to the iptables firewall to accept incoming TCP connections on port 2222.
However, this is not enough to fix the issue, as SELinux will still block the SSH server from binding to that port. Moreover, iptables may not be the default firewall service on some Linux distributions, such as Fedora or CentOS, which use firewalld instead.
D: firewall-cmd --zone=public --add-port=2222/tcp
This command will add a rule to the firewalld firewall to allow incoming TCP connections on port 2222 in the public zone. However, this is not enough to fix the issue, as SELinux will still block the SSH server from binding to that port. Moreover, firewalld may not be installed or enabled on some Linux distributions, such as Ubuntu or Debian, which use iptables instead.
References:
* How to configure SSH to use a non-standard port with SELinux set to enforcing
* Change SSH Port on CentOS/RHEL/Fedora With SELinux Enforcing
* How to change SSH port when SELinux policy is enabled

NEW QUESTION # 256
A Linux administrator is troubleshooting a systemd mount unit file that is not working correctly. The file contains:
[root@system] # cat mydocs.mount
[Unit]
Description=Mount point for My Documents drive
[Mount]
What=/dev/drv/disk/by-uuid/94afc9b2-ac34-ccff-88ae-297ab3c7ff34
Where=/home/user1/My Documents
Options=defaults
Type=xfs
[Install]
WantedBy=multi-user.target
The administrator verifies the drive UUID correct, and user1 confirms the drive should be mounted as My Documents in the home directory. Which of the following can the administrator do to fix the issues with mounting the drive? (Select two).
  • A. Rename the mount file to home-user1-my-documents.mount.
  • B. Change the Where entry to Where=/home/user1/My Documents.
  • C. Add quotes to the What and Where entries, such as What="/dev/drv/disk/by-uuid/94afc9b2-ac34-ccff-88ae-297ab3c7ff34" and Where="/home/user1/My Documents".
  • D. Rename the mount file to home-user1-My Documents.mount.
  • E. Change the Where entry to Where=/home/user1/my documents.
  • F. Change the What entry to /dev/drv/disk/by-uuid/94afc9b2-ac34-ccff-88ae-297ab3c7ff34.
Answer: B,D
Explanation:
The mount unit file name and the Where entry must be escaped to handle spaces in the path.
Reference
The mount unit file name must be named after the mount point directory, with spaces replaced by  . See How to escape spaces in systemd unit files? and systemd.mount.
The Where entry must use   to escape spaces in the path. See systemd.mount and The workaround is to use /usr/bin/env followed by the path in quotes..

NEW QUESTION # 257
A Linux administrator is troubleshooting an issue in which users are not able to access https://portal.comptia.
org from a specific workstation. The
administrator runs a few commands and receives the following output:

Which of the following tasks should the administrator perform to resolve this issue?
  • A. Clear the local DNS cache on the workstation and rerun the host command.
  • B. Update the name server in resolv. conf to use an external DNS server.
  • C. Remove the entry for portal . comptia.org from the local hosts file.
  • D. Add a network route from the 10.10.10.0/24 to the 192.168.0.0/16.
Answer: C
Explanation:
The best task to perform to resolve this issue is B. Remove the entry for portal.comptia.org from the local hosts file. This is because the local hosts file has a wrong entry that maps portal.comptia.org to 10.10.10.55, which is different from the actual IP address of 192.168.1.55 that is returned by the DNS server. This causes a mismatch and prevents the workstation from accessing the website. By removing or correcting the entry in the hosts file, the workstation will use the DNS server to resolve the domain name and access the website successfully.
To remove or edit the entry in the hosts file, you need to have root privileges and use a text editor such as vi or nano. For example, you can run the command:
sudo vi /etc/hosts
and delete or modify the line that says:
10.10.10.55 portal.comptia.org
Then save and exit the file.

NEW QUESTION # 258
A systems administrator is customizing a new Linux server. Which of the following settings for umask would ensure that new files have the default permissions of -rw-r--r--?
  • A. 0640
  • B. 0027
  • C. 0038
  • D. 0017
Answer: B
Explanation:
The umask determines the default permission for new files. To get -rw-r--r-- (644), the umask should be set to
0027. This sets the permissions to allow read and write for the owner, read-only for the group, and no permissions for others.

NEW QUESTION # 259
......
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