An administrator is reviewing suspicious activity on a server and needs to determine which users logged into the system within the past 24 hours. Which of the following commands should the administrator run to determine this? A. last B. who…
During the final step of staging new Linux hardware, GRUB2 is installed to the system drive. Which of the following BEST describes the role of GRUB2 in a new Linux installation? A. It provides a menu for creating administrator task…
A site reliability engineer updated the latest configuration management scripts and committed them to a workstream called either test or patch. A Linux administrator wants to ensure these latest workstreams are able to be retrieved to the server. Which of…
A Linux administrator attempts to install the package newprogram.x86_64.rpm using a package manager. The administrator receives a warning indicating the command that was run was using a deprecated package manager. Which of the following commands should the administrator use to…
Which of the following would allow remote users to access a corporate server? (Choose two.) A. VPN server B. SMTP server C. NTP server D. SSH server E. DHCP server F. File server
A junior administrator is configuring local name lookups for fully qualified domain names in an isolated environment. The administrator is given a checklist and must accomplish the following tasks: Add localhost with loopback address. Add 192.168.192.12/24 to resolve to database01.comptia.org…
A Linux administrator is updating iptables rules and is given the following tasks: Output a list of iptables rules. Remove all iptables rules. Which of the following actions should be performed from the terminal console to accomplish these tasks? (Choose…
A junior Linux administrator is performing version control on a Git repository. The administrator is given a list of tasks to complete: List the currently installed Git release. Show the status reporting of the clone. Which of the following commands…
A systems administrator needs to allow the Linux server to receive HTTP connections from Internet hosts. By default, the port for HTTP connections is blocked. Which of the following rules should be added in the firewall to allow this type…
A technician wants to secure a sensitive workstation by ensuring network traffic is kept within the local subnet. To accomplish this task, the technician executes the following command: echo 0 > /proc/sys/net/ipv4/ip_default_ttl Which of the following commands can the technician…