A user cannot access the application server from a laptop. The user does not know the name of the application's process but does know the port number. Which of the following commands would BEST help…

The last command reads /var/log/wtmp to display a chronological list of user logins, logouts, and system reboots, providing administrators with a history of user access to the server. When a user reports being unable to access an application server, reviewing login history with last can reveal whether any sessions have been established and help identify access patterns or anomalies.

netstat (misspelled as 'netatat') shows current active network connections and listening ports but does not show historical user login sessions or access records.

nslookup is a DNS query tool used to resolve hostnames to IP addresses, which does not help investigate application server access or port-level issues.

route displays or modifies the kernel IP routing table, which addresses routing path issues but does not provide information about user sessions or port activity.

lsblk lists block storage devices and their partitions, which is completely unrelated to network access or application server connectivity.