Q1. - (Topic 5) 

Which of the following details is NOT provided in any output from the netstat utility? 

A. broadcast services 

B. interface statistics 

C. masquerading connections 

D. network connections 

E. routing tables 

View Answer

Q2. CORRECT TEXT - (Topic 4) 

Please specify the top directory containing the configuration files for the CUPS printing system. (Specify the full path to the directory.) 

View Answer

Q3. - (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. 

View Answer

Q4. - (Topic 4) 

What is true regarding the command sendmail? 

A. With any MTA, the sendmail command must be run periodically by the cron daemon. 

B. All MTAs, including Postfix and Exim, provide a sendmail command. 

C. The sendmail command prints the MTAs queue history of which mails have been sent successfully. 

D. It is only available when the sendmail MTA is installed. 

View Answer

Q5. CORRECT TEXT - (Topic 5) 

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

View Answer

Q6. - (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. 

View Answer

Q7. - (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 

View Answer

Q8. - (Topic 3) 

To prevent a specific user from scheduling tasks with at, what should the administrator do? 

A. Add the specific user to /etc/at.allow file. 

B. Add the specific user to [deny] section in the /etc/atd.conf file. 

C. Add the specific user to /etc/at.deny file. 

D. Add the specific user to nojobs group. 

E. Run the following: atd --deny [user]. 

View Answer

Q9. - (Topic 3) 

What is NOT contained in the locale setting of the operating system? 

A. currency symbol 

B. language 

C. timezone 

D. thousands separator 

View Answer

Q10. - (Topic 5) 

Which of the following tools used for DNS debugging, reports not only the response from the name server but also details about the query? 

A. dnsq 

B. dig 

C. hostname 

D. dnslookup 

E. zoneinfo 

View Answer