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XK0-006 by CompTIA - Page 1 | ExamCademy

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An administrator updates the network configuration on a server but wants to ensure the change will not cause an outage if something goes wrong. Which of the following commands allows the administrator to accomplish this goal?

A netplan try
B netplan rebind
C netplan ip
D netplan apply

A Linux user needs to download the latest Debian image from a Docker repository. Which of the following commands makes this task possible?

A docker image init debian
B docker image pull Debian
C docker image import debian
D docker image save debian

Which of the following best describes a use case for playbooks in a Linux system?

A To provide a set of tasks and configurations to deploy an application
B To provide the instructions for implementing version control on a repository
C To provide the security information required for a container
D To provide the storage volume information required for a pod

Which of the following is a reason multiple password changes on the same day are not allowed?

A To avoid brute-forced password attacks by making them too long to perform
B To increase password complexity and the system’s security
C To stop users from circulating through the password history to return to the originally used password
D To enforce using multifactor authentication with stronger encryption algorithms instead of passwords

A Linux administrator needs to analyze a compromised disk for traces of malware. To complete the analysis, the administrator wants to make an exact, block-level copy of the disk. Which of the following commands accomplishes this task?

A cp -rp /dev/sdc/* /tmp/image
B cpio -i /dev/sdc -ov /tmp/image
C tar cvzf /tmp/image /dev/sdc
D dd if=/dev/sdc of=/tmp/image bs=8192

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).

A Set the user’s files to immutable.
B Instruct the user to log in once per week.
C Delete the user’s /home folder.
D Run the command passwd -l user.
E Change the date on the /home folder to that of the expected return date.
F Change the user’s shell to /sbin/nologin.

Which of the following best describes journald?

A A system service that collects and stores logging data
B A feature that creates crash dumps in case of kernel failure
C A service responsible for keeping the filesystem journal
D A service responsible for writing audit records to a disk

An administrator attempts to install updates on a Linux system but receives error messages regarding a specific repository. Which of the following commands should the administrator use to verify that the repository is installed and enabled?

A yum repo-pkgs
B yum list installed repos
C yum reposync available
D yum repolist all

Which of the following is the main reason for setting up password expiry policies?

A To avoid using the same passwords repeatedly
B To mitigate the use of exposed passwords
C To force usage of passwordless authentication
D To increase password strength and complexity

Which of the following utilities supports the automation of security compliance and vulnerability management?

A SELinux
B Nmap
C AIDE
D OpenSCAP

A systems administrator is configuring new Linux systems and needs to enable passwordless authentication between two of the servers. Which of the following commands should the administrator use?

A ssh-keygen -t rsa $$ ssh-copy-id -i ~/.ssh/id_rsa.pub john@server2
B ssh-keyscan -t rsa $$ ssh-copy-id john@server2 -i ~/.ssh/key
C ssh-agent -i rsa $$ ssh-copy-id ~/.ssh/key john@server2
D ssh-add -t rsa $$ scp -rp ~/.ssh john@server2