[2025年08月] 学習材料には有効なEX374効率的問題集！
最新のEX374テストエンジンPDF無料問題集保証！
質問 # 140
Update credentials for a dynamic inventory in Automation Controller.
正解：
解説：
1. Navigate to Credentials.
2. Edit the associated credential.
3. Update the fields (e.g., username, password) and save.
Explanation:
Updating credentials ensures uninterrupted access to dynamic inventory sources, such as APIs or databases.
質問 # 141
Add a custom script to the EE image.
正解：
解説：
1. Create a script: echo '#!/bin/bash
echo "Custom Script"' > custom_script.sh chmod +x custom_script.sh
2. Modify the Dockerfile:
COPY custom_script.sh /usr/local/bin/custom_script
3. Rebuild the image:
podman build -t my_execution_env:1.1 -f context/Dockerfile .
Explanation:
Including custom scripts in the EE extends its functionality for specialized tasks.
質問 # 142
Set up multiple files for web1 in host_vars, splitting variables into web1_network.yml and web1_access.yml.
正解：
解説：
echo "ansible_host: 192.168.1.10" > host_vars/web1_network.yml
echo "ansible_user: admin" > host_vars/web1_access.yml
Explanation:
Dividing host variables into multiple files improves modularity, making complex configurations easier to manage.
質問 # 143
Make a file named config.txt in the cloned repository, add sample configuration details, and commit the file with the message "Add initial config".
正解：
解説：
cd /home/user/projects/repo
echo "server=127.0.0.1" > config.txt
git add config.txt
git commit -m "Add initial config"
Explanation:
New files must be staged with git add before committing. The git commit command saves the changes with a descriptive message.
質問 # 144
Update an installed collection to the latest version.
正解：
解説：
ansible-galaxy collection install my_namespace.my_collection --force
Explanation:
Using --force ensures the collection is reinstalled, fetching the latest version if available.
質問 # 145
Validate the EE configuration using Ansible Builder.
正解：
解説：
ansible-builder validate --tag my_execution_env:1.0
Explanation:
The validate command checks the EE's configuration for errors, ensuring compatibility with Ansible's execution requirements.
質問 # 146
Extract the domain name from an email address using the regex_search filter.
正解：
解説：
- name: Extract domain from email hosts: localhost
vars:
email: "[email protected]" tasks:
- name: Get domain debug:
var: "{{ email | regex_search('@(.*)') }}"
Explanation:
The regex_search filter allows complex string manipulation by extracting specific patterns like domains from email addresses.
質問 # 147
View the status of your local repository to determine untracked files and staged changes.
正解：
解説：
git status
Explanation:
git status shows the current state of the working directory and staging area, helping track changes.
質問 # 148
Generate a list of numbers from 1 to 10 using filters.
正解：
解説：
- name: Generate number range hosts: localhost
tasks:
- name: Create range debug:
var: "{{ range(1, 11) | list }}"
Explanation:
The range filter generates sequential numbers, useful for looping or numerical data generation.
質問 # 149
Create a credential in Automation Controller for accessing an EE registry.
正解：
解説：
1. Go to Credentials.
2. Add a credential:
o Type: Container Registry
o Registry URL: registry.example.com
o Username and password.
Explanation:
Container registry credentials ensure Automation Controller can pull EEs securely.
質問 # 150
Create a custom plugin for generating inventory.
正解：
解説：
# plugins/inventory/my_plugin.py
from ansible.plugins.inventory import BaseInventoryPlugin
class InventoryModule(BaseInventoryPlugin):
NAME = 'my_plugin'
def parse(self, inventory, loader, path, cache):
inventory.add_host('host1', group='all')
Explanation:
Custom inventory plugins allow highly tailored inventory generation for unique use cases.
質問 # 151
Set up a database query as a dynamic inventory source.
正解：
解説：
# db_inventory.py import sqlite3, json
connection = sqlite3.connect("inventory.db")
cursor = connection.cursor()
cursor.execute("SELECT hostname, ip FROM hosts")
inventory = {"all": {"hosts": {}}}
for row in cursor.fetchall():
inventory["all"]["hosts"][row[0]] = {"ansible_host": row[1]}
print(json.dumps(inventory))
Explanation:
Dynamic inventory from a database ensures inventories are generated based on up-to-date information stored in the database.
質問 # 152
Configure Automation Controller to authenticate with a private Git repository.
正解：
解説：
1. Navigate to Credentials and click Add.
2. Select Source Control as the type.
3. Enter:
o Username: git_user
o Token/Password: your_token
4. Use this credential in your Git project.
Explanation:
Adding credentials for private repositories ensures secure access while automating playbook fetching.
質問 # 153
Extract all unique keys from a dictionary using a filter.
正解：
解説：
- name: Extract dictionary keys hosts: localhost
vars:
my_dict: name: John age: 30 city: London
tasks:
- name: Get keys debug:
var: "{{ my_dict.keys() | list }}"
Explanation:
Extracting dictionary keys helps in scenarios requiring iteration or analysis of available attributes.
質問 # 154
Use ansible_facts to display the OS distribution of web1.
正解：
解説：
- name: Display OS distribution hosts: web1
tasks:
- debug:
var: ansible_distribution
Explanation:
Ansible facts provide detailed system information, enabling tailored configurations and playbook logic.
質問 # 155
Automate the update process for EEs in Automation Controller.
正解：
解説：
1. Use the awx-manage command:
awx-manage update_execution_environments --url registry.example.com/my_execution_env --username user --password pass
2. Schedule this command as a cron job.
Explanation:
Automating EE updates ensures they remain current without manual intervention, reducing maintenance overhead.
質問 # 156
Create a project in Automation Controller to pull playbooks from a Git repository.
正解：
解説：
1. Go to Projects in Automation Controller.
2. Click Add.
3. Fill in:
o Name: Git Project
o Source Control Type: Git
o Source Control URL: https://github.com/example/repo.git
4. Save and sync the project.
Explanation:
Creating a project from Git ensures that playbooks and configurations are version-controlled and automatically synchronized.
質問 # 157
Configure a playbook to run on a specific IP address instead of the host name defined in the inventory.
正解：
解説：
# playbook.yml
- name: Ping specific host hosts: 192.168.1.10 tasks:
- ping:
Explanation:
Specifying an IP directly overrides inventory naming, providing flexibility for ad-hoc runs or testing specific hosts.
質問 # 158
Use a dynamic inventory to filter hosts by a specific tag.
正解：
解説：
ansible-inventory -i aws_ec2.yml --host tag_web
Explanation:
Filtering hosts by tag ensures that only the relevant resources are targeted for playbook execution.
質問 # 159
Run a playbook from the Git project in Automation Controller.
正解：
解説：
1. Create a Job Template: o Name: Run Git Playbook o Project: Git Project
o Playbook: site.yml
o Inventory: Add an appropriate inventory.
2. Save and launch the job.
Explanation:
Job templates tie playbooks to inventories and credentials, enabling consistent and repeatable automation execution.
質問 # 160
Analyze logs of an EE job run in Automation Controller.
正解：
解説：
1. Navigate to Jobs in Automation Controller.
2. Open the job details for the executed playbook.
3. View the logs for task outputs and errors.
Explanation:
Job logs provide insights into the execution flow and help debug issues within the EE.
質問 # 161
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