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NEW QUESTION # 106
Which of the following best describes a use case for playbooks in a Linux system?
Answer: A
Explanation:
In the context of Linux automation and orchestration, playbooks are most commonly associated with configuration management tools such as Ansible, which is explicitly referenced in the CompTIA Linux+ V8 objectives. Playbooks are written in YAML and are designed to define a series of tasks, configurations, and desired system states that should be applied to one or more Linux systems in a repeatable and automated manner.
A primary use case for playbooks is application deployment and system configuration automation.
Playbooks allow administrators to specify tasks such as installing packages, configuring services, managing users, setting permissions, deploying application files, and starting or enabling services. This aligns directly with option A, which accurately describes playbooks as a method to provide a set of tasks and configurations required to deploy an application consistently across environments.
The remaining options are not accurate representations of playbook functionality. Option B refers to version control implementation, which is handled by tools like Git and is not the purpose of playbooks themselves, although playbooks may be stored in version control systems. Option C describes container security information, which is typically managed through container runtime configurations, secrets, or security policies rather than playbooks. Option D refers to storage volume information for a pod, which is specific to Kubernetes manifests and not a general Linux playbook use case.
According to Linux+ V8 documentation, automation tools and playbooks help reduce human error, improve consistency, and support Infrastructure as Code (IaC) practices. Playbooks are a key mechanism for orchestrating multi-step operations across multiple systems, making them essential for modern Linux system administration.
Therefore, the correct answer is A, as it best describes the practical and documented use case for playbooks in a Linux system.
NEW QUESTION # 107
A Linux software developer wants to use AI to optimize source code used in a commercial product. Which of the following steps should the developer take first?
Answer: A
Explanation:
Linux+ V8 emphasizes security, compliance, and governance when introducing new automation technologies, including AI. Before using AI tools to optimize commercial source code, the developer must ensure that such usage complies with organizational policies.
Option B is correct because verifying company policy is the first and most critical step. AI tools may introduce risks such as intellectual property leakage, licensing conflicts, or regulatory violations. Many organizations restrict how source code can be shared with external systems, including AI services.
The other options are premature. Selecting tools or deploying models should only occur after policy approval.
Linux+ V8 highlights governance-first approaches when adopting automation technologies.
Therefore, the correct answer is B.
NEW QUESTION # 108
An administrator must secure an account for a user who is going on extended leave. Which of the following steps should the administrator take? (Choose two)
Answer: D,E
Explanation:
Securing dormant or temporarily unused user accounts is a best practice emphasized in the Security domain of CompTIA Linux+ V8. When a user goes on extended leave, the goal is to prevent unauthorized access while preserving the user's data and account for future use.
The most effective approach is to disable authentication and interactive login access without deleting the account. Option D, running passwd -l user, locks the user's password by prepending an invalid character to the encrypted password in /etc/shadow. This prevents password-based authentication while retaining the account, files, and ownership information. Linux+ V8 documentation highlights password locking as a standard method for temporarily disabling accounts.
Option F, changing the user's shell to /sbin/nologin, further strengthens account security by preventing interactive shell access entirely. Even if another authentication mechanism were attempted, the user would be denied a login shell. This is a common defense-in-depth measure and is explicitly referenced in Linux+ V8 objectives for access control and account hardening.
The other options are incorrect or inappropriate. Option A (immutable files) does not prevent account access and may interfere with system operations. Option B defeats the purpose of securing an inactive account.
Option C deletes user data, which is unnecessary and risky. Option E has no security effect, as filesystem timestamps do not control access.
Linux+ V8 stresses that secure account management should be reversible, auditable, and minimally disruptive. Locking the password and disabling the login shell meet these criteria and are commonly used together in enterprise environments.
NEW QUESTION # 109
Which of the following commands should an administrator use to see a full hardware inventory of a Linux system?
Answer: A
Explanation:
Hardware inventory and system information gathering are core responsibilities in Linux system management and are explicitly covered in CompTIA Linux+ V8 objectives. Among the listed commands, dmidecode is the most comprehensive tool for retrieving detailed hardware inventory information.
The dmidecode command reads data directly from the system's DMI (Desktop Management Interface) / SMBIOS tables, which are provided by the system firmware (BIOS or UEFI). It reports detailed information about system hardware components, including motherboard details, BIOS version, system manufacturer, CPU sockets, memory slots, installed RAM modules, serial numbers, and asset tags. This makes it the preferred tool when a full hardware inventory is required.
The other options provide only partial or specific information. lsmod lists currently loaded kernel modules and does not provide physical hardware inventory. dmesg displays kernel ring buffer messages, which may include hardware detection logs but are not structured or complete inventory data. lscpu reports CPU architecture and processor details only, not the entire system hardware.
Linux+ V8 documentation highlights dmidecode as the authoritative utility for system hardware discovery and inventory auditing. It is commonly used in enterprise environments for documentation, troubleshooting, capacity planning, and compliance reporting.
Because it provides the most complete and authoritative hardware information available from the system firmware, the correct answer is A. dmidecode.
NEW QUESTION # 110
Which of the following most accurately describes a webhook?
Answer: A
Explanation:
Webhooks are commonly used in automation and DevOps workflows, which are emphasized in the Linux+ V8 objectives. A webhook is best described as an HTTP-based callback mechanism that allows one system to notify another when a specific event occurs.
Option D correctly defines a webhook. Instead of polling an API at regular intervals, a webhook allows an application to automatically send an HTTP request-typically a POST-to a predefined URL when an event happens. This makes webhooks efficient, event-driven, and well-suited for automation pipelines, CI/CD systems, and monitoring integrations.
The other options are incorrect. Option A confuses webhooks with authentication mechanisms. Option B incorrectly associates webhooks with SNMP, which is a separate protocol. Option C is misleading because webhooks are not inherently designed for transmitting sensitive data and require additional security measures such as TLS and authentication.
Linux+ V8 documentation highlights webhooks as a key integration method in automated environments, enabling systems to react in real time to changes or triggers.
Therefore, the correct answer is D.
NEW QUESTION # 111
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