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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Scripting, Containers, and Automation | 19% | - Manage version control using Git - Automate administration with Python and configuration management tools - Manage orchestration processes - Deploy and manage containers (Docker/Podman) - Write and execute BASH shell scripts - Implement automation workflows |
| Topic 2: System Management | 32% | - Manage the Linux boot process - Manage devices - Perform basic Linux tasks - Manage packages and software - Manage system components - Manage storage - Manage files and directories - Configure storage and cloud/virtualization technologies - Manage users and groups - Configure kernel modules and network parameters - Manage networking - Manage permissions and ownership - Manage kernel modules |
| Topic 3: Security | 21% | - Perform vulnerability assessments - Apply best practices for permissions and authentication - Configure SELinux and security contexts - Manage firewalls - Manage file security and access controls - Implement security hardening |
| Topic 4: Troubleshooting | 28% | - Monitor system logs, health, and events - Troubleshoot network connectivity (firewall, routing, DNS) - Troubleshoot system properties and processes - Optimize performance (CPU, memory, I/O) - Troubleshoot application issues - Troubleshoot security issues (SELinux, permissions) - Troubleshoot user issues - Troubleshoot hardware issues |
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NEW QUESTION # 44
The development team asks a Linux administrator to help diagnose a connectivity issue that is occurring with a newly developed software. The Linux administrator reviews the following output:
Which of the following actions is a best way to resolve the issue?
Answer: A
Explanation:
The error shows the certificate is not trusted because the issuer is unknown to the local system.
The best fix is to verify that the remote certificate and issuing CA are legitimate, then add the trusted CA certificate to the system's certificate trust store.
NEW QUESTION # 45
User1 reports " access denied " errors while trying to execute app. Given the following outputs:
Which of the following options will remediate this issue?
Answer: C
Explanation:
According to the output of getfacl app, user1 has only " rw " (read and write) permissions, but lacks " x " (execute). Without execute permission, user1 cannot run the file. To allow user1 to execute app, you must update the ACL to add execute permission (e.g., setfacl -m u:user1:rwx app). Modifying " others " permissions (option B) is not secure or necessary, adding user1 to the wheel group (option C) is unrelated, and moving the file (option D) does not resolve permission issues.
Reference:
CompTIA Linux+ Study Guide: Exam XK0-006, Sybex, Chapter 7: " Securing Linux Systems " , Section: " Managing File and Directory Permissions and ACLs " CompTIA Linux+ XK0-006 Objectives, Domain 3.0: Security
NEW QUESTION # 46
Which of the following commands would a Linux administrator use to determine the temperature of a motherboard?
Answer: A
Explanation:
This utility reads hardware sensor data exposed by the system, including motherboard and CPU temperature values, allowing administrators to monitor system thermal conditions.
NEW QUESTION # 47
A systems administrator is having issues installing packages in a Linux system. The administrator receives the following outputs:
Which of the following is the best command to fix this issue?
Answer: B
Explanation:
The CA bundle path is a symlink to a file under /etc/pki/ca-trust/extracted/pem, and update-ca- trust cannot create that generated bundle while SELinux is enforcing. Restoring the default SELinux contexts on that directory allows the bundle file to be created and fixes the certificate verification failures during package installs.
NEW QUESTION # 48
A new drive was recently added to a Linux system. Using the environment and tokens provided, complete the following tasks:
* Create an appropriate device label.
* Format and create an ext4 file system on the new partition.
The current working directory is /.
Answer:
Explanation:
Explanation:
To create an appropriate device label, format and create an ext4 file system on the new partition, you can use the following commands:
To create a GPT (GUID Partition Table) label on the new drive /dev/sdc, you can use the parted command with the -s option (for script mode), the device name (/dev/sdc), the mklabel command, and the label type (gpt). The command is:
parted -s /dev/sdc mklabel gpt
To create a primary partition of 10 GB on the new drive /dev/sdc, you can use the parted command with the -s option, the device name (/dev/sdc), the mkpart command, the partition type (primary), the file system type (ext4), and the start and end points of the partition (1 and 10G). The command is:
parted -s /dev/sdc mkpart primary ext4 1 10G
To format and create an ext4 file system on the new partition /dev/sdc1, you can use the mkfs command with the file system type (ext4) and the device name (/dev/sdc1). The command is:
mkfs.ext4 /dev/sdc1
You can verify that the new partition and file system have been created by using the lsblk command, which will list all block devices and their properties.
NEW QUESTION # 49
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