Which of the following cryptographic functions ensures a hard drive is encrypted when not in use?
A. PKI certificates
B. GPG
C. OpenSSL
D. LUKS
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 2:
Which of the following allows modules to be used in Python scripts?
A. import
B. __init__
C. __name__
D. det
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 3:
A systems administrator is preparing a Linux system for application setup. The administrator needs to create an environment variable with a persistent value in one of the user accounts.
Which of the following commands should the administrator use for this task?
A. VAR=value
B. export VAR=value
C. export "VAR=$VAR:value" >> ~/.ssh/profile
D. echo "export VAR=value" >> ~/.bashrc
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 4:
A systems administrator is working on an SFTP server configuration. Which of the following commands will best enable the connectivity to that service from the 10.10.0.0/24 network?
A. sudo ufw allow from 10.10.0.0/24
B. sudo ufw allow 0:22/tcp from 10.10.0.0
C. sudo ufw allow from 10.10.0.0/24 to any port 22
D. sudo ufw allow in on eth0 to any port 22
正解:C
解説: (Pass4Test メンバーにのみ表示されます)
質問 5:
A Linux administrator wants to add a user to the Docker group without changing their primary group. Which of the following commands should the administrator use to complete this task?
A. sudo groupmod docker user
B. sudo usermod -g docker user
C. sudo groupmod -G docker user
D. sudo usermod -aG docker user
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 6:
An administrator receives reports that a web service is not responding. The administrator reviews the following outputs:

Which of the following is the reason the web service is not responding?
A. The private key needs to be renamed from server.crtto server.keyso the service can find it.
B. The private key has the incorrect permissions and should be changed to 0755for the service.
C. The private key does not match the public key, and both keys should be replaced.
D. The private key is not in the correct location and needs to be moved to the correct directory.
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 7:
An administrator wants to see all logs for the app.servicesystemd process. Which of the following commands should the administrator use to complete this task?
A. journalctl -u app.service
B. systemctl status app.service
C. cat /var/log/messages
D. systemd-analyze unit-files app.service
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 8:
A systems administrator is reconfiguring existing user accounts in a Linux system. Which of the following commands should the administrator use to include "myuser" in the finance group?
A. groupmod finance myuser
B. useradd -g finance myuser
C. groupadd finance myuser
D. usermod -aG finance myuser
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 9:
A Linux systems administrator makes updates to systemd-managedservice configuration files.
Which of the following commands should the administrator execute in order to implement the changes?
A. systemctl enable
B. systemctl restart
C. systemctl start
D. systemctl daemon-reload
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
981 お客様のコメント





石坂** -
効率的にできます。
解説されているので、基礎知識を身に着けるにはとても良いですね。ア