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Which of the following is MOST likely the issue?
A Linux administrator needs to resolve a service that has failed to start. The administrator runs the following command: The following output is returned Which of the following is MOST likely the issue?A . The service does not have permissions to read write the startupfile.B . The service startupfile size...
Which of the following commands can be used to address this issue?
A Linux system fails to start and delivers the following error message: Which of the following commands can be used to address this issue?A . fsck.ext4 /dev/sda1B . partprobe /dev/sda1C . fdisk /dev/sda1D . mkfs.ext4 /dev/sda1View AnswerAnswer: A Explanation: The command fsck.ext4 /dev/sda1 can be used to address the issue....
Which of the following commands will remediate and help resolve the issue?
Some servers in an organization have been compromised. Users are unable to access to the organization’s web page and other services. While reviewing the system log, a systems administrator notices messages from the kernel regarding firewall rules: Which of the following commands will remediate and help resolve the issue? A)...
Which of the following commands will enforce this rule?
A DevOps engineer needs to allow incoming traffic to ports in the range of 4000 to 5000 on a Linux server. Which of the following commands will enforce this rule?A . iptables -f filter -I INPUT -p tcp --dport 4000:5000 -A ACCEPTB . iptables -t filter -A INPUT -p tcp...
Which of the following commands can help to accomplish this task?
A Linux administrator needs to create a new cloud.cpio archive containing all the files from the current directory. Which of the following commands can help to accomplish this task?A . ls | cpio -iv > cloud.epioB . ls | cpio -iv < cloud.epioC . ls | cpio -ov > cloud.cpioD...
Which of the following should the administrator do to address this issue?
A systems administrator is implementing a new service task with systems at startup and needs to execute a script entitled test.sh with the following content: The administrator tries to run the script after making it executable with chmod +x; however, the script will not run. Which of the following should...
Which of the following should the administrator do?
To harden one of the servers, an administrator needs to remove the possibility of remote administrative login via the SSH service. Which of the following should the administrator do?A . Add the line DenyUsers root to the /etc/hosts.deny file.B . Set PermitRootLogin to no in the /etc/ssh/sshd_config file.C . Add...
Which of the following technologies can be used as a central repository of Linux users and groups?
Which of the following technologies can be used as a central repository of Linux users and groups?A . LDAPB . MFAC . SSOD . PAMView AnswerAnswer: A Explanation: LDAP stands for Lightweight Directory Access Protocol, which is a protocol for accessing and managing a central directory of users and groups....
Which of the following commands should replace the <CONDITIONAL> string?
A user is asking the systems administrator for assistance with writing a script to verify whether a file exists. Given the following: Which of the following commands should replace the <CONDITIONAL> string?A . if [ -f "$filename" ]; thenB . if [ -d "$filename" ]; thenC . if [ -f...
Which of the following commands will accomplish this task?
A systems administrator wants to test the route between IP address 10.0.2.15 and IP address 192.168.1.40. Which of the following commands will accomplish this task?A . route -e get to 192.168.1.40 from 10.0.2.15B . ip route get 192.163.1.40 from 10.0.2.15C . ip route 192.169.1.40 to 10.0.2.15D . route -n 192.168.1.40...
