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Q57. - (Topic 1) 

When the command echo $ outputs 1, which of the following statements is true? 

A. It is the process ID of the echo command. 

B. It is the process ID of the current shell. 

C. It is the exit value of the command executed immediately before echo. 

D. It is the exit value of the echo command. 

Answer: C 


Q58. - (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 


Q59. CORRECT TEXT - (Topic 1) 

What command displays all aliases defined in the current shell? (Specify the command without any path information) 

Answer: alias, alias -p 


Q60. - (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 


Q61. CORRECT TEXT - (Topic 4) 

After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.) 

Answer: newaliases, sendmail -bi 


Q62. CORRECT TEXT - (Topic 6) 

What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.) 

Answer: l 


Q63. - (Topic 1) 

What is the difference between the commands test -e path and test -f path? 

A. They are equivalent options with the same behaviour. 

B. The -f option tests for a regular file. The -e option tests for an empty file. 

C. Both options check the existence of the path. The -f option also confirms that it is a regular file. 

D. The -f option tests for a regular file. The -e option tests for an executable file. 

Answer: C 


Q64. CORRECT TEXT - (Topic 5) 

With IPv6, how many bits have been used for the interface identifier of an unicast address? (Specify the number using digits only.) 

Answer: 64