The Improved Guide To 102-400 testing engine Nov 2021

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2021 Nov 102-400 free question

Q11. - (Topic 5) 

Which of the following commands will help identify a broken router between the local and the remote machine? 

A. ps 

B. netstat 

C. nslookup 

D. ifconfig 

E. traceroute 


Q12. - (Topic 5) 

Which of the following keywords can be used in the file /etc/nsswitch.conf to specify a source for host name lookups? (Choose TWO correct answers.) 

A. resolv 

B. dns 

C. remote 

D. files 

E. hosts 

Answer: B,D 

Q13. - (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 


Q14. - (Topic 1) 

How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only? 

A. unset -v FOOBAR;./myscript 

B. set -a FOOBAR="";./myscript 

C. env -u FOOBAR./myscript 

D. env -i FOOBAR./myscript 


Q15. CORRECT TEXT - (Topic 6) 

Which file contains a set of services and hosts that will be allowed to connect to the server by going through a TCP Wrapper program such as tcpd? (Specify the full name of the file, including path.) 

Answer: /etc/hosts.allow 

Far out 102-400 exam engine:

Q16. CORRECT TEXT - (Topic 1) 

What word is missing from the following SQL statement? 

__________ count(*) from tablename; 

(Please specify the missing word using lower-case letters only.) 

Answer: select 

Q17. - (Topic 4) 

What is true about the ntpdate command? 

A. It is the primary management command for the NTP time server. 

B. It updates the local system's date (i.e. day, month and year) but not the time (i.e. hours, minutes, seconds). 

C. It queries one or more NTP time servers and adjusts the system time accordingly. 

D. It sends the local system time to one or many remote NTP time servers for redistribution. 

E. It can be used by any user to set the user clock independently of the system clock. 


Q18. - (Topic 5) 

Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.) 

A. substitute 

B. nameserver 

C. search 

D. lookup 

E. method 

Answer: B,C 

Q19. - (Topic 6) 

Which of the following commands connects to the remote host which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.) 

A. ssh --port 2222 

B. ssh -p 2222 

C. ssh -o Port=2222 

D. ssh -o GatewayPort=2222 

E. ssh 

Answer: B,C 

Q20. CORRECT TEXT - (Topic 2) 

What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Specify ONLY the command without any path or parameters.) 

Answer: xdm 

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