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CompTIA Linux+ Certification Exam Sample Questions (Q253-Q258):

NEW QUESTION # 253
A Linux user uses a VPN to securely access the company's systems from a laptop.
Which of the following protocols are MOST likely used to secure the VPN connection? (Choose two.)

• A. SFTP
• B. SSL/TLS
• C. IPSec
• D. VNC
• E. HTTP
• F. SELinux

Answer: B,C
NEW QUESTION # 254
A newly installed desktop is unable to connect to networked resources. The systems administrator executes various commands and reviews the following output snippets:

Which of the following should the systems administrator try NEXT to restore connectivity?

• A. route add -net 192.168.1.0 netmask 255.255.255.0
• B. arp -s 20:ad:1f10:0f 192.168.1.10
• C. dig -x @127.0.0.1 192.168.1.10
• D. ip link set wlo1 up
• E. killall -HUP NetworkManager

Answer: D
NEW QUESTION # 255
An administrator has a CSV file named hosts.csv. The contents of hosts.csv include the following:
192.168.2.57,lnx1prd.example.com,Linux,Production
192.168.2.58,lnx2prd.example.com,Linux,Production
192.168.1.4,server15.example.com,Windows,Development
The administrator needs to create a second comma-separated list of only the Linux server IP addresses.
Which of the following commands would achieve this need?

• A. for ip in $(awk -F, '{print $1}' hosts.csv | grep "Linux"); do echo -n "$ip,"; done
• B. for ip in $(grep "Linux" hosts.csv | cut -d"," -f1); do echo -n "$ip,"; done
• C. for ip in $( cut -d"," -f1 hosts.csv | grep "Linux"); do echo -n "$ip,"; done
• D. for ip in $(grep "Linux" hosts.csv | sed "/$1//'); do echo -n "$ip,"; done

Answer: D
NEW QUESTION # 256
When performing a routine server process inspection the systems administrator notices that about 300 processes similar to the following are running:
Root 7858 0 21:39 pts/0 00:00:00 [websrv] <defunct>
Malfunctioning software is found and removed from the server, but the administrator is now unable to terminate the remaining processes Which of the following is the BEST course of action for the administrator to take NEXT in order to remove.

• A. Lower the process prionties
• B. Schedule a server reboot
• C. Reinstall the OS on the server
• D. Raise the process priorities

Answer: B
NEW QUESTION # 257
A systems engineer scheduled an at job that will reboot a critical server. A developer states the processes will not complete for another three hours.
Which of the following will help the systems engineer to remove the job?

• A. at -q
  atrm <PID>
• B. at -q
  atrm <at job number>
• C. atq
  atrm <at job number>
• D. atq
  atrm <PID>

Answer: C
NEW QUESTION # 258
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