A developer is unable to access a Linux server via SSH. Given the following output:SSH server configuration (/etc/ssh/sshd_config):PermitRootLogin noPubkeyAuthentication yesPasswordAuthentication yesGSSAPIAuthentication yesX11Forwarding noUser Information (/etc/passwd):developer:x:1000:1000:comptia:/home/developer:/bin/bashUser Shadow File (/etc/shadow):developer:!!::0:99999:7:::Which of the following explains why the developer is unable to log in to the server?

The developer's account has been locked out.

The developer's private key has been deleted from the server.

The developer's account has been locked out.

The developer's public key is in the wrong location.

SSH has been disabled for user log-in.

A Linux engineer receives the following notification from a system:cp: cannot create regular file '/app/appdata.tar*': No space left on deviceThe engineer obtains the following output:[root@host ~]# df -i /appFilesystem Inodes IUsed IFree Mounted on/dev/vdb 2048 2048 0 /appbashCopyEdit[root@host ~]# df -h /appFilesystem Size Used Avail Use% Mounted on/dev/vdb 2.0G 6.1M 1.9G 1% /appWhich of the following describes the state of the filesystem based on this output?

The filesystem has depleted the available inodes.

The filesystem was mounted in read-only mode.

The filesystem has depleted the available inodes.

The filesystem is not mounted in the correct location.

The filesystem has consumed the available space.

An administrator is investigating why a Linux workstation is not resolving a website. The output of dig and nslookup shows that IPv4 resolution is working, but IPv6 resolution fails.The administrator executes:nslookup -querytype=AAAA www.comptia.orgCan't find www.comptia.org: No answerThe workstation has a static entry in /etc/hosts:CopyEdit104.18.99.101 www.comptia.orgWhich of the following is the most likely cause?

The static entry needs to be removed from /etc/hosts.

The remote website does not support IPv6, and the workstation requires it.

The firewall needs to be modified to allow outbound HTTP and HTTPS.

The nameserver in /etc/resolv.conf needs to be updated to 8.8.8.8.

A Linux administrator was informed that the server time zone is incorrect. Which of the following commands should the administrator use to correct the time zone?

timedatectl set-timezone America/New_York

systemd-timezone set Asia/Tokyo

systemctl configure-timezone Africa/Nairobi

tzconfig configure Europe/London

A systems technician is configuring an application server to accept packets from a trusted source with the IP address 192.168.10.22. Which of the following commands will allow communication between the two servers?

iptables -A INPUT -s 192.168.10.22 -j ACCEPT

iptables -L -s 192.168.10.22 -j ACCEPT

iptables -D INPUT -s 192.168.10.22 -j ACCEPT

iptables -A INPUT -s 192.168.10.22 -j ACCEPT

iptables -A OUTPUT -S 192.168.10.22 -j ACCEPT

CompTIA XK0-005 Practice Test 11 - Free Online Exam Prep & Questions

A Linux administrator needs to rebuild a container with the httpd service in order to change some default parameters. Which of the following should be the first command line in the Dockerfile?

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CompTIA XK0-005 Practice Test 11

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