(Robin Tunney has been working as a DevSecOps engineer in an IT company located in Charleston, South Carolina. She would like to build a customized docker image using HashiCorp Packer. Therefore, she installed Packer and created a file docker-ubuntu.pkr.hcl; she then added HCL block to it and saved the file.Which of the following commands should Robin execute to build the Docker image using Packer?)
Answer(s): A
HashiCorp Packer is an image automation tool that uses the packer build command to create machine images from configuration files written in HCL or JSON. When Robin defines her Docker image configuration in the file docker-ubuntu.pkr.hcl, the correct way to initiate the build process is by running packer build docker-ubuntu.pkr.hcl. This command reads the configuration file, initializes required plugins, executes defined builders and provisioners, and produces the final Docker image. The other options are syntactically incorrect because Packer does not support abbreviated flags such as -b or alternative verbs like -build. Building container images during the Build and Test stage ensures that images are reproducible, standardized, and compliant with organizational security requirements before deployment. Using Packer also supports immutability and reduces configuration drift, which are key principles in secure DevSecOps pipelines.
(Katie Holmes is working as a DevSecOps engineer at SeCSafe Anti-virus. The DevOps team of her organization has developed a distributed application with multiple microservices. Katie deployed all the microservices to the Kubernetes nodes successfully. The DevOps team approached Katie and informed her that the application is not working. Katie wants to check whether the Kubernetes cluster is working or not. Which of the following commands should Katie run step by step to verify that the Kubernetes is working?)
Answer(s): D
Kubernetes clusters are managed and inspected using the kubectl command-line tool. To verify whether a Kubernetes cluster is functioning correctly, administrators commonly run kubectl version to confirm that both the client and server components are reachable and operational. This is followed by kubectl cluster-info, which displays information about the cluster's control plane and core services. These commands together confirm API server availability, cluster connectivity, and basic health status. The other options list invalid command names such as kube, kubernetes, or kube- etcd, which are not used for standard cluster validation. Performing these checks during the Operate and Monitor stage helps quickly identify whether application issues stem from cluster-level problems or application-level misconfigurations. This supports faster troubleshooting and more reliable production operations.
(Thomas McInerney has been working as a senior DevSecOps engineer in an IT company that develops software products and web applications related to the healthcare sector. His organization deployed various applications in Docker containers. Thomas' team leader would like to prevent a container from gaining new privileges. Therefore, he asked Thomas to set no_new_priv bit, which functions across clone, execve, and fork to prevent a container from gaining new privileges. Which of the following commands should Thomas use to list out security options for all the containers?)
Docker allows inspection of container runtime configuration using the docker inspect command. To list security-related options such as no_new_privileges for all containers, the correct approach is to first retrieve all container IDs using docker ps --quiet --all and then pass them to docker inspect with a formatted output. The command docker ps --quiet --all | xargs docker inspect --format ':SecurityOpt=' correctly extracts the security options configured for each container. Options that use incorrect flags such as -quiet instead of --quiet, omit required parameters, or misformat the output string are invalid. Inspecting security options during the Operate and Monitor stage helps ensure that privilege escalation protections are enforced consistently, supporting container hardening and compliance with security benchmarks.
(Alex Hales has been working as a DevSecOps in an IT company that develops software products and web applications for visualizing scientific data. He would like to trigger a Jenkins build job using Git post commit script or hooks that helps his team in saving time by automating commit. Therefore, before triggering the build job, Alex made changes and saved the code in the respective IDE under Git repository and added the changes in the master branch using git add command and ran the post commit script to check the status of the build. Then, he navigated to the Jenkins project and selected the "Trigger build remotely from Build triggers" radio button. It would automate the trigger every time a change gets committed to the project. Alex navigated back to Bash terminal to trigger the build job. Which of the following commands should Alex use in Bash terminal to trigger the build job?)
Git post-commit hooks are executed automatically after a commit is successfully created. To trigger the Jenkins build job configured to respond to commits, Alex must create a valid Git commit using the correct Git command. The standard command to commit changes with a message is git commit - m "commit from terminal". Running this command records the changes in the repository and triggers the post-commit hook, which in turn initiates the Jenkins build. Commands using github commit are invalid because github is not a native Git command-line utility. The -b flag is also not used with git commit. Automating build triggers during the Code stage improves efficiency, reduces manual intervention, and ensures continuous integration is consistently enforced.
(Michael Rady recently joined an IT company as a DevSecOps engineer. His organization develops software products and web applications related to online marketing. Michael deployed a web application on Apache server. He would like to safeguard the deployed application from diverse types of web attacks by deploying ModSecurity WAF on Apache server. Which of the following command should Michael run to install ModSecurity WAF?)
On Debian- and Ubuntu-based systems, ModSecurity for Apache is installed using the package libapache2-mod-security2. The correct command to install this package is sudo apt install libapache2-mod-security2 -y, where the -y flag automatically confirms installation prompts. The other options include invalid flags that are not recognized by the package manager and would result in command failure. Installing ModSecurity during the Operate and Monitor stage provides an additional layer of defense by inspecting incoming HTTP requests and blocking malicious traffic such as SQL injection, cross-site scripting, and protocol violations. A Web Application Firewall helps protect deployed applications from common attack vectors and supports defense-in-depth strategies in production environments.
Post your Comments and Discuss EC-Council 312-97 exam prep with other Community members:
Our website is free, but we have to fight against AI bots and content theft. We're sorry for the inconvenience caused by these security measures. You can access the rest of the 312-97 content, but please register or login to continue.