最新版無料体験を掴み取れ！RedHat EX294問題集PDFは更新されたのは2024年
最新リリースのEX294問題集はRHCE認証済みです
Redhat ex294試験の準備をするには、候補者がLinuxの管理とRed Hat Enterprise Linuxを使用した経験をしっかりと理解する必要があります。RedHatは、Red Hat System Administration III：Linuxを含む試験の準備を支援するためのいくつかのトレーニングコースを提供しています。 Ansible（RH294）コース付きの自動化。
RedHat EX294試験は、Red Hat Enterprise Linux 8上のRed Hat Certified Engineer（RHCE）になりたいITプロフェッショナル向けの認定試験です。この試験は、候補者がRed Hat Enterprise Linux 8システムを管理および管理する能力をテストするよう設計されています。この試験は、ネットワークサービスの設定と管理、ソフトウェアのインストールと設定、ユーザーとグループの管理、およびストレージの管理などのタスクを実行できる候補者の能力を測定します。
Red Hat Ex294認定試験の合格は、Red Hat認定エンジニア（RHCE）になるための不可欠なステップです。この認定は、候補者がRed Hat Enterprise Linux Systemsを管理および管理するために必要なスキルと知識を持っていることを雇用主に示しています。また、システム管理者の役割からDevOpsやクラウドエンジニアリングのポジションまで、認定された専門家にとってさまざまなキャリアの機会を開きます。 Red Hatスキルを持つ専門家に対する需要の増加に伴い、EX294試験は候補者のキャリア開発への優れた投資です。
質問 # 20
Create a playbook called web.yml as follows:
* The playbook runs on managed nodes in the "dev" host group
* Create the directory /webdev with the following requirements:
--> membership in the apache group
--> regular permissions: owner=r+w+execute, group=r+w+execute, other=r+execute
s.p=set group-id
* Symbolically link /var/www/html/webdev to /webdev
* Create the file /webdev/index.html with a single line of text that reads:
"Development"
--> it should be available on http://servera.lab.example.com/webdev/index.html
正解：
解説：
Solution as:
# pwd
/home/admin/ansible/
# vim web.yml
---
- name:
hosts: dev
tasks:
- name: create group
yum:
name: httpd
state: latest
- name: create group
group:
name: apache
state: present
- name: creating directiory
file:
path: /webdev
state: directory
mode: '2775'
group: apache
- sefcontext:
target: '/webdev/index.html'
setype: httpd_sys_content_t
state: present
- name: Apply new SELinux file context to filesystem
command: restorecon -irv
- name: creating symbolic link
file:
src: /webdev
dest: /var/www/html/webdev
state: link
force: yes
- name: creating file
file:
path: /webdev/index.html
sate: touch
- name: Adding content to index.html file
copy:
dest: /webdev/index.html
content: "Development"
- name: add service to the firewall
firewalld:
service: http
permanent: yes
state: enabled
immediate: yes
- name: active http service
service:
name: httpd
state: restarted
enabled: yes
:wq
# ansible-playbook web.yml --syntax-check
# ansible-playbook web.yml
質問 # 21
Create a role called sample-apache in /home/sandy/ansible/roles that enables and starts httpd, enables and starts the firewall and allows the webserver service. Create a template called index.html.j2 which creates and serves a message from /var/www/html/index.html Whenever the content of the file changes, restart the webserver service.
Welcome to [FQDN] on [IP]
Replace the FQDN with the fully qualified domain name and IP with the ip address of the node using ansible facts. Lastly, create a playbook in /home/sandy/ansible/ called apache.yml and use the role to serve the index file on webserver hosts.
正解：
解説：
/home/sandy/ansible/apache.yml
/home/sandy/ansible/roles/sample-apache/tasks/main.yml
/home/sandy/ansible/roles/sample-apache/templates/index.html.j2
In /home/sandy/ansible/roles/sample-apache/handlers/main.yml
質問 # 22
Create a file called specs.empty in home/bob/ansible on the local machine as follows:
HOST=
MEMORY=
BIOS=
VDA_DISK_SIZE=
VDB_DISK_SIZE=
Create the playbook /home/bob/ansible/specs.yml which copies specs.empty to all remote nodes' path /root/specs.txt. Using the specs.yml playbook then edit specs.txt on the remote machines to reflect the appropriate ansible facts.
- A. Solution as:
- B. Solution as:
正解：B
質問 # 23
Generate a hosts file:
* Download an initial template file hosts.j2 from http://classroom.example.com/
hosts.j2 to
/home/admin/ansible/ Complete the template so that it can be used to generate a file with a line for each inventory host in the same format as /etc/hosts:
172.25.250.9 workstation.lab.example.com workstation
* Create a playbook called gen_hosts.yml that uses this template to generate the file /etc/myhosts on hosts in the dev host group.
* When completed, the file /etc/myhosts on hosts in the dev host group should have a line for each managed host:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
172.25.250.10 serevra.lab.example.com servera
172.25.250.11 serevrb.lab.example.com serverb
172.25.250.12 serevrc.lab.example.com serverc
172.25.250.13 serevrd.lab.example.com serverd
-----------------------------------------------------------------
while practising you to create these file hear. But in exam have to download as per questation.
hosts.j2 file consists.
localhost localhost.localdomain localhost4 localhost4.localdomain4
::1
localhost localhost.localdomain localhost6 localhost6.localdomain6
-------------------------------------------------------------------
正解：
解説：
Solution as:
# pwd
/home/admin/ansible
# wget http://classroom.example.com/hosts.j2
# vim hosts.j2
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1
localhost localhost.localdomain localhost6 localhost6.localdomain6
{% for host in groups['all'] %}
{{ hostvars[host]['ansible_facts']['default_ipv4']['address'] }} {{ hostvars[host]
['ansible_facts']['fqdn'] }} {{ hostvars[host]['ansible_facts']['hostname'] }}
{% endfor %}
:wq!
# vim gen_hosts.yml
---
- name: collecting all host information
hosts: all
tasks:
- name:
template:
src: hosts.j2
dest: /etc/myhosts
when: inventory_hostname in groups['dev']
:wq
# ansible-playbook gen_hosts.yml --syntax-check
# ansible-playbook gen_hosts.yml
質問 # 24
Create an ansible vault password file called lock.yml with the password reallysafepw in the /home/sandy/ansible directory. In the lock.yml file define two variables. One is pw_dev and the password is 'dev' and the other is pw_mgr and the password is 'mgr' Create a regular file called secret.txt which contains the password for lock.yml.
正解：
解説：
ansible-vault create lock.yml
New Vault Password: reallysafepw
Confirm: reallysafepw
質問 # 25
Create user accounts
------------------------
--> A list of users to be created can be found in the file called user_list.yml
which you should download from http://classroom.example.com/user_list.yml and
save to /home/admin/ansible/
--> Using the password vault created elsewhere in this exam, create a playbook called
create_user.yml
that creates user accounts as follows:
--> Users with a job description of developer should be:
--> created on managed nodes in the "dev" and "test" host groups assigned the
password from the "dev_pass"
variable and these user should be member of supplementary group "devops".
--> Users with a job description of manager should be:
--> created on managed nodes in the "prod" host group assigned the password from
the "mgr_pass" variable
and these user should be member of supplementary group "opsmgr"
--> Passwords should use the "SHA512" hash format. Your playbook should work using
the vault password file
created elsewhere in this exam.
while practising you to create these file hear. But in exam have to download as per
questation.
user_list.yml file consist:
---
user:
- name: user1
job: developer
- name: user2
job: manager
正解：
解説：
Solution as:
# pwd
/home/admin/ansible
# wget http://classroom.example.com/user_list.yml
# cat user_list.yml
# vim create_user.yml
---
- name:
hosts: all
vars_files:
- ./user_list.yml
- ./vault.yml
tasks:
- name: creating groups
group:
name: "{{ item }}"
state: present
loop:
- devops
- opsmgr
- name: creating user
user:
name: "{{ item.name }}"
state: present
groups: devops
password: "{{ dev_pass|password_hash ('sha512') }}"
loop: "{{ user }}"
when: (inventory_hostname in groups['dev'] or inventory_hostname in
groups['test']) and item.job == "developer"
- name: creating user
user:
name: "{{ item.name }}"
state: present
groups: opsmgr
password: "{{ mgr_pass|password_hash ('sha512') }}"
loop: "{{ user }}"
when: inventory_hostname in groups['prod'] and item.job == "manager"
:wq!
# ansible-playbook create_user.yml --vault-password-file=password.txt --syntax-check
# ansible-playbook create_user.yml --vault-password-file=password.txt
質問 # 26
Install and configure ansible
User bob has been created on your control node. Give him the appropriate permissions on the control node. Install the necessary packages to run ansible on the control node.
Create a configuration file /home/bob/ansible/ansible.cfg to meet the following requirements:
* The roles path should include /home/bob/ansible/roles, as well as any other path that may be required for the course of the sample exam.
* The inventory file path is /home/bob/ansible/inventory.
* Ansible should be able to manage 10 hosts at a single time.
* Ansible should connect to all managed nodes using the bob user.
Create an inventory file for the following five nodes:
nodel.example.com
node2.example.com
node3.example.com
node4.example.com
node5.example.com
Configure these nodes to be in an inventory file where node1 is a member of group dev. nodc2 is a member of group test, nodc3 is a member of group proxy, nodc4 and node 5 are members of group prod. Also, prod is a member of group webservers.
正解：
解説：
In/home/sandy/ansible/ansible.cfg
[defaults]
inventory=/home/sandy/ansible/inventory
roles_path=/home/sandy/ansible/roles
remote_user= sandy
host_key_checking=false
[privilegeescalation]
become=true
become_user=root
become_method=sudo
become_ask_pass=false
In /home/sandy/ansible/inventory
[dev]
node 1 .example.com
[test]
node2.example.com
[proxy]
node3 .example.com
[prod]
node4.example.com
node5 .example.com
[webservers:children]
prod
質問 # 27
Modify file content.
------------------------
Create a playbook called /home/admin/ansible/modify.yml as follows:
* The playbook runs on all inventory hosts
* The playbook replaces the contents of /etc/issue with a single line of text as
follows:
--> On hosts in the dev host group, the line reads: "Development"
--> On hosts in the test host group, the line reads: "Test"
--> On hosts in the prod host group, the line reads: "Production"
正解：
解説：
Solution as:
# pwd
/home/admin/ansible
# vim modify.yml
---
- name:
hosts: all
tasks:
- name:
copy:
content: "Development"
dest: /etc/issue
when: inventory_hostname in groups['dev']
- name:
copy:
content: "Test"
dest: /etc/issue
when: inventory_hostname in groups['test']
- name:
copy:
content: "Production"
dest: /etc/issue
when: inventory_hostname in groups['prod']
:wq
# ansible-playbook modify.yml --syntax-check
# ansible-playbook modify.yml
質問 # 28
Create a file called specs.empty in home/bob/ansible on the local machine as follows:
HOST=
MEMORY=
BIOS=
VDA_DISK_SIZE=
VDB_DISK_SIZE=
Create the playbook /home/bob/ansible/specs.yml which copies specs.empty to all remote nodes' path /root/specs.txt. Using the specs.yml playbook then edit specs.txt on the remote machines to reflect the appropriate ansible facts.
正解：
解説：
Solution as:
質問 # 29
Create a playbook that changes the default target on all nodes to multi-user tarqet. Do this in playbook file called target.yml in /home/sandy/ansible
正解：
解説：
- name: change default target
hosts: all
tasks:
- name: change target
file:
src: /usr/lib/systemd/system/multi-user.target dest: /etc/systemd/system/default.target state: link
質問 # 30
Create an Ansible vault to store user passwords as follows:
* The name of the vault is valut.yml
* The vault contains two variables as follows:
- dev_pass with value wakennym
- mgr_pass with value rocky
* The password to encrypt and decrypt the vault is atenorth
* The password is stored in the file /home/admin/ansible/password.txt
正解：
解説：
Solution as:
# pwd
/home/admin/ansible
# echo "atenorth" >password.txt
# chmod 0600 password.txt
# ansible-vault create vault.yml --vault-password-file=password.txt
---
- dev_pass: wakennym
- mgr_pass: rocky
:wq
# cat vault.yml
$ANSIBLE_VAULT;1.1;AES256
36383862376164316436353665343765643331393433373564613762666531313034336438353662
3464346331346461306337633632393563643531376139610a343531326130663266613533633562
38623439316631306463623761343939373263333134353264333834353264343934373765643737
3535303630626666370a643663366634383863393338616661666632353139306436316430616334
65386134393363643133363738656130636532346431376265613066326162643437643064313863
6633333537303334333437646163343666666132316639376531
# ansible-vault view vault.yml
password:******
---
- dev_pass: wakennym
- mgr_pass: rocky
質問 # 31
Create a jinja template in /home/sandy/ansible/ and name it hosts.j2. Edit this file so it looks like the one below. The order of the nodes doesn't matter. Then create a playbook in /home/sandy/ansible called hosts.yml and install the template on dev node at /root/myhosts
- A. Solution as:
- B. Solution as:
正解：B
質問 # 32
Create a playbook that changes the default target on all nodes to multi-user tarqet. Do this in playbook file called target.yml in /home/sandy/ansible
- A. - name: change default target
hosts: all
tasks:
- name: change target
file:
src: /usr/lib/systemd/system/multi-user.target dest: /etc/systemd/system/default.target state: link - B. - name: change default target
hosts: all
- name: change target
file:
src: /usr/lib/systemd/system/multi-user.target dest: /etc/systemd/system/default.target state: link
正解：A
質問 # 33
Create a file called requirements.yml in /home/sandy/ansible/roles to install two roles. The source for the first role is geerlingguy.haproxy and geerlingguy.php. Name the first haproxy-role and the second php-role. The roles should be installed in /home/sandy/ansible/roles.
正解：
解説：
in /home/sandy/ansible/roles
vim requirements.yml
Run the requirements file from the roles directory:
ansible-galaxy install -r requirements.yml -p /home/sandy/ansible/roles
質問 # 34
Create a playbook called regulartasks.yml which has the system that append the date to /root/datefile every day at noon. Name is job 'datejob'
- A. Solution as:
- B. Solution as:
正解：A
質問 # 35
Rekey an existing Ansible vault as follows:
-----------------------------------------------
* Download Ansible vault from http:// classroom.example.com /secret.yml to /home/
admin/ansible/
* The current vault password is curabete
* The new vault password is newvare
* The vault remains in an encrypted state with the new password
正解：
解説：
Solution as:
# pwd
/home/admin/ansible/
# wget http://classroom.example.com/secret.yml
# chmod 0600 newpassword.txt
# ansible-vault rekey vault.yml --new-vault-password-file=newpassword.txt
質問 # 36
Create a file in /home/sandy/ansible/ called report.yml. Using this playbook, get a file called report.txt (make it look exactly as below). Copy this file over to all remote hosts at /root/report.txt. Then edit the lines in the file to provide the real information of the hosts. If a disk does not exist then write NONE.
正解：
解説：
Solution as:
質問 # 37
Create a file called requirements.yml in /home/sandy/ansible/roles a file called role.yml in /home/sandy/ansible/. The haproxy-role should be used on the proxy host. And when you curl http://node3.example.com it should display "Welcome to node4.example.com" and when you curl again "Welcome to node5.example.com" The php-role should be used on the prod host.
- A. Solution as:
Check the proxy host by curl http://node3.example.com - B. Solution as:
Check the proxy host by curl http://node3.example.com
正解：B
質問 # 38
Create the users in the file usersjist.yml file provided. Do this in a playbook called users.yml located at /home/sandy/ansible. The passwords for these users should be set using the lock.yml file from TASK7. When running the playbook, the lock.yml file should be unlocked with secret.txt file from TASK 7.
All users with the job of 'developer' should be created on the dev hosts, add them to the group devops, their password should be set using the pw_dev variable. Likewise create users with the job of 'manager' on the proxy host and add the users to the group 'managers', their password should be set using the pw_mgr variable.
正解：
解説：
ansible-playbook users.yml -vault-password-file=secret.txt
質問 # 39
Create an empty encrypted file called myvault.yml in /home/sandy/ansible and set the password to notsafepw. Rekey the password to iwejfj2221.
正解：
解説：
ansible-vault create myvault.yml
Create new password: notsafepw Confirm password: notsafepw ansible-vault rekey myvault.yml
Current password: notsafepw New password: iwejfj2221 Confirm password: iwejfj2221
質問 # 40
Create a playbook /home/bob /ansible/motd.yml that runs on all inventory hosts and docs the following: The playbook should replaee any existing content of/etc/motd in the following text. Use ansible facts to display the FQDN of each host
On hosts in the dev host group the line should be "Welcome to Dev Server FQDN".
On hosts in the webserver host group the line should be "Welcome to Apache Server FQDN".
On hosts in the database host group the line should be "Welcome to MySQL Server FQDN".
正解：
解説：
/home/sandy/ansible/apache.yml
/home/sandy/ansible/roles/sample-apache/tasks/main.yml
Topic 2, LAB SETUP - 2
control.realmX.example.com _ workstation.lab.example.com
node1.realmX.example.com _ servera.lab.example.com
node2.realmX.example.com _ serverb.lab.example.com
node3.realmX.example.com _ serverc.lab.example.com
node4.realmX.example.com _ serverd.lab.example.com
node5.realmX.example.com
- username:root, password:redhat
- username:admin, password:redhat
note1. don't change 'root' or 'admin' password.
note2. no need to create ssh-keygen for access, its pre-defined
note3. SELinux is in enforcing mode and firewalld is disabled/stop on whole managed hosts.
質問 # 41
Install and configure Ansible on the control-node control.realmX.example.com as
follows:
-------------------------------------------------------------------------------------------
--> Install the required packages
--> Create a static inventory file called /home/admin/ansible/inventory as follows:
node1.realmX.example.com is a member of the dev host group
node2.realmX.example.com is a member of the test host group
node3.realmX.example.com & node4.realmX.example.com are members of the prod
host group
node5.realmX.example.com is a member of the balancers host group.
prod group is a member of the webservers host group
--> Create a configuration file called ansible.cfg as follows:
--> The host inventory file /home/admin/ansible/inventory is defined
--> The location of roles used in playbooks is defined as /home/admin/ansible/ roles
正解：
解説：
Solution as:
Through physical host, login to workstation.lab.example.com with user root.
# ssh [email protected]
# hostname
workstation.lab.example.com
# yum install platform-python*
# su - admin
# pwd
/home/admin/
# vim .vimrc
# mkdir -p ansible/roles
# cd ansible
# vim inventory
[dev]
servera.lab.example.com
[test]
serverb.example.com
[prod]
serverc.example.com
serverd.example.com
[balancer]
serverd.lab.example.com
[webservers:children]
prod
:!wq
# vim ansible.cfg
[defaults]
inventory = ./inventory
role_path = ./roles
remote_user = admin
ask_pass = false
[privilege_escalation]
become = true
become_method = sudo
become_user = root
become_ask_pass = false
:!wq
# ansible all --list-hosts
質問 # 42
......
最新のEX294試験問題集でRedHat試験問題にトレーニング：https://www.goshiken.com/RedHat/EX294-mondaishu.html