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Q31. - (Topic 4) 

Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.) 

A. --from= 

B. --since= 

C. --until= 

D. --upto= 

E. --date= 

Answer: B,C 

Q32. CORRECT TEXT - (Topic 4) 

Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.) 

Answer: hwclock, /sbin/hwclock, /usr/sbin/hwclock 

Q33. CORRECT TEXT - (Topic 5) 

Which command is used to set the hostname of the local system? (Specify ONLY the command without any path or parameters.) 

Answer: hostname 

Q34. - (Topic 4) 

What entry can be added to the syslog.conf file to have all syslog messages generated by a system displayed on console 12? 

A. *.* /dev/tty12 

B. /var/log/messages | /dev/tty12 

C. | /dev/tty12 

D. syslog tty12 

E. mail.* /dev/tty12 


Q35. - (Topic 6) 

When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this? 

A. debug 

B. lsof 

C. nessus 

D. strace 

E. traceroute 


Q36. - (Topic 5) 

Which of the following statements is valid in the file /etc/nsswitch.conf? 

A. multi on 

B. dns-server 

C. hosts: files dns 

D. include /etc/nsswitch.d/ 


Q37. - (Topic 3) 

What is true regarding the command userdel --force --remove bob? (Choose TWO correct answers.) 

A. The user bob is removed from the system's user database. 

B. The user bob's home directory is removed. 

C. The locate database is updated to drop files owned by bob. 

D. All files owned by bob are remove from all mounted filesystems. 

E. In case bob was the last member of a group, that group is deleted. 

Answer: A,B 

Q38. - (Topic 5) 

What is true regarding TCP port 23? 

A. Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used. 

B. Port 23 is the well known port for the SSH service which provides secure logins. 

C. Port 23 is the well known port for the rlogin service which is SSL secured by default. 

D. Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell. 


Q39. - (Topic 6) 

Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr? 

A. find /usr -uid 0 -perm +4000 

B. find -user root +mode +s /usr 

C. find -type suid -username root -d /usr 

D. find /usr -ls \*s\* -u root 

E. find /usr -suid -perm +4000 


Q40. - (Topic 3) 

What is true about the file /etc/localtime? 

A. It is a plain text file containing a string such as Europe/Berlin. 

B. It is created and maintained by the NTP service based on the geolocation of the system's IP address. 

C. It is a symlink to /sys/device/clock/ltime and always contains the current local time. 

D. It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.