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CompTIA XK0-006 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Automation, Orchestration, and Scripting: Covers task automation with tools like Ansible, shell and Python scripting, Git version control, and responsible AI-assisted development.
Topic 2
  • Security: Focuses on securing Linux systems through authentication, firewalls, OS hardening, account policies, cryptography, and compliance checks.
Topic 3
  • Services and User Management: Covers day-to-day Linux administration including file management, user accounts, processes, software, services, and container operations.
Topic 4
  • Troubleshooting: Addresses diagnosing and resolving issues across system health, hardware, storage, networking, security configurations, and performance optimization.

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CompTIA Linux+ Certification Exam vce files, valid free CompTIA XK0-006 vce dumps

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CompTIA Linux+ Certification Exam Sample Questions (Q58-Q63):

NEW QUESTION # 58
A Linux systems administrator needs to extract the contents of a file named /home/dev/web.bkpto the /var/www/html/directory.
Which of the following commands should the administrator use?

Answer: D

Explanation:
The .bkp file here is a cpio archive, not a tar or zip. The correct way to extract it is by changing into the target directory (/var/www/html/) and using cpio -idv < /home/dev/web.bkp. The pushd and popd commands ensure the administrator returns to the original directory afterward.


NEW QUESTION # 59
A systems administrator is configuring new Linux systems and needs to enable passwordless authentication between two of the servers. Which of the following commands should the administrator use?

Answer: B

Explanation:
ssh-keygen -t rsa generates an RSA key pair.
ssh-copy-id -i ~/.ssh/id_rsa.pub john@server2 copies the public key to the remote server's authorized_keys, enabling passwordless login.


NEW QUESTION # 60
A systems administrator is deploying a new secure web server but is having issues starting it.
The administrator reviews the following outputs:

Which of the following commands fixes this issue while following security best practices?

Answer: A

Explanation:
The web server is running with SELinux in enforcing mode, and Apache is denied permission to bind to TCP port 1234 because that port is not labeled for HTTP services. Adding port 1234 to the
http_port_t SELinux type allows Apache to bind to the port while keeping SELinux enforcing, which follows security best practices.


NEW QUESTION # 61
A Linux administrator needs to create and then connect to the app-01-image container. Which of the following commands accomplishes this task?

Answer: A

Explanation:
Container lifecycle management is a core topic within the Automation, Orchestration, and Scripting domain of CompTIA Linux+ V8. Administrators must understand the difference between creating containers, starting containers, and executing commands within running containers.
The correct command is docker run -it app-01-image. The docker run command performs three actions at once: it creates a new container from the specified image, starts the container, and optionally attaches the administrator's terminal to it. The -i option keeps standard input open, while the -t option allocates a pseudo- terminal (TTY). Together, these options allow the administrator to interactively connect to the container immediately after it is created.
The other options are incorrect for the following reasons. docker start is used only to start an existing stopped container and does not create a new container from an image. Additionally, -t and -d are not valid options for attaching an interactive terminal during container startup. docker build is used to build a Docker image from a Dockerfile and cannot be used to create or connect to a container. docker exec is used to run commands inside an already running container and therefore cannot be used to create a container.
Linux+ V8 documentation emphasizes that docker run is the primary command used when administrators want to instantiate containers from images and interact with them. This command is commonly used during testing, development, and troubleshooting workflows.


NEW QUESTION # 62
A systems administrator is helping to secure a new web application. During the tests, the administrator obtains the following output to validate the application:
SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
ALPN, server accepted to use http/1.1
Server certificate:
subject: CN=*.newapp.comptia.org
start date: Jan 17 00:00:00 2024 GMT
expire date: Feb 16 23:59:59 2034 GMT
issuer: C=US; O=Comptia; OU=IT Security; CN=ca1.comptia.org
SSL certificate verify result: unable to get local issuer certificate (20), continuing anyway.
Which of the following explains the validation results?

Answer: D

Explanation:
The correct answer is A. The certificate was not signed by a trusted authority, which was forcefully ignored during the tests. The key indicator in the output is the message: "SSL certificate verify result: unable to get local issuer certificate (20), continuing anyway." This error means that the client system cannot validate the certificate chain because it does not recognize or trust the certificate authority (CA) that issued the server certificate.
In TLS/SSL validation, the client must verify that the server's certificate chains up to a trusted root CA present in the local trust store. If the issuer (in this case, ca1.comptia.org) is not included in the client's trusted certificate authorities, the verification fails. However, the phrase "continuing anyway" indicates that the validation failure was bypassed-likely due to a testing flag such as -k or --insecure in curl-allowing the connection despite the trust issue.
Option B is incorrect because the certificate validity dates show it is valid from 2024 to 2034, not expired.
Option C is incorrect because wildcard certificates (e.g., *.newapp.comptia.org) are commonly used and not inherently insecure when properly managed.
Option D is incorrect because the cipher suite shown (ECDHE-RSA-AES256-GCM-SHA384) is considered strong and modern, not outdated.
From a Linux+ security perspective, proper certificate validation is critical. Administrators should ensure that the issuing CA is trusted by installing the correct CA certificates rather than bypassing validation, which exposes systems to man-in-the-middle attacks and other security risks.


NEW QUESTION # 63
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