EX200 Essential Tools — All Questions With Answers

Refer to the exhibit.

$ cat /etc/passwd | head -3
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin

Refer to the exhibit.

$ ls -l /etc/shadow
----------. 1 root root 1234 Oct  5 14:30 /etc/shadow

$ ls -l /etc/shadow
-rw-------. 1 root root 1234 Jan 1 00:00 /etc/shadow

$ systemctl status sshd
● sshd.service - OpenSSH server daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)
   Active: failed (Result: start-limit) since Mon 2024-10-10 10:00:00 EDT; 2min ago
  Process: 1234 ExecStart=/usr/sbin/sshd -D $OPTIONS (code=exited, status=0/SUCCESS)
 Main PID: 1234 (code=exited, status=0/SUCCESS)

Feb 10 10:00:00 host systemd[1]: sshd.service: start request repeated too quickly.
Feb 10 10:00:00 host systemd[1]: sshd.service: Failed with result 'start-limit'.

Refer to the exhibit.

$ cat /proc/cpuinfo | grep '^processor' | wc -l
4
$ free -h
              total        used        free      shared  buff/cache   available
Mem:           7.6G        1.2G        5.2G        100M        1.2G        6.1G
Swap:          2.0G        0.0G        2.0G
$ df -h /var
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3        50G   10G   37G  21% /var

Refer to the exhibit.

-rwsr-xr-x. 1 root root 12345 Jan 1 2025 /usr/bin/passwd