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2021 Dec LX0-104 test question

Q31. CORRECT TEXT - (Topic 2) 

Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.) 

Answer: /usr/bin/xwininfo, xwininfo 


Q32. - (Topic 5) 

Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.) 

A. New name servers may be added to the resolver configuration. 

B. Network interfaces may become active or inactive. 

C. The routing table may change. 

D. IP addresses may change. 

E. The system's host name may change. 

Answer: B,C,D 


Q33. CORRECT TEXT - (Topic 5) 

What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.) 

Answer: 1024 


Q34. - (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 


Q35. - (Topic 5) 

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

A. multi on 

B. 192.168.168.4 dns-server 

C. hosts: files dns 

D. include /etc/nsswitch.d/ 

Answer: C 


Renew LX0-104 test questions:

Q36. CORRECT TEXT - (Topic 5) 

Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options) 

Answer: up 

96. - (Topic 5) 

What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.) 

A. route del default 

B. ifconfig unset default 

C. netstat -r default 

D. ip route del default 

E. sysctl ipv4.default_gw=0 

Answer: A,D 


Q37. CORRECT TEXT - (Topic 6) 

With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.) 

Answer: DISPLAY, $DISPLAY 


Q38. - (Topic 6) 

What is a purpose of an SSH host key? 

A. It must be sent by any SSH client in addition to a user key in order to identify the client's host. 

B. It provides the server's identity information to connecting SSH clients. 

C. It is the root key by which all user SSH keys must be signed. 

D. It authenticates any user that logs into a remote machine from the key's host. 

E. It is used by system services like cron, syslog or a backup job to automatically connect to remote hosts. 

Answer: B 


Q39. - (Topic 6) 

Which command is used to set restrictions on the size of a core file that is created for a user when a program crashes? 

A. core 

B. edquota 

C. ulimit 

D. quota 

Answer: C 


Q40. - (Topic 3) 

Each entry in a crontab must end with what character? 

A. Tab 

B. Space 

C. Backslash 

D. Newline 

Answer: D