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1. You are working with journalctl and need to see only messages that are at a debug priority. Which of the following options enables this scenario?
2. Which of the following commands views the contents of a message that exists in the Postfix queue?
3. You need to create an email address to accept email for This email address is being protected from spambots. You need JavaScript enabled to view it.. However, you would like abuse reports sent to multiple email addresses within your organization. Which of the following will send email destined for the abuse account to This email address is being protected from spambots. You need JavaScript enabled to view it. and This email address is being protected from spambots. You need JavaScript enabled to view it.?
4. Which of the following commands places a file into the print queue?
5. Which function of the hwclock command will set the hardware clock to the current system time?
6. Within which file will you find errors related to delivery of mail on a Postfix server?
7. A developer has created an application and wants to take advantage of syslog for logging to a custom log file. Which facility should be used for an application such as this?
8. Which option in a CUPS configuration file causes the daemon to listen on all interfaces on port 631?
9. When running ntpd, the server will not adjust or synchronize if the time is skewed from the NTP server by a significant amount of time. Which option to ntpd disables this and causes the synchronization process to continue even if there is a large skew?
10. Which system logging facility is used for messages from the kernel?
11. Within which directory are system logs normally kept on a Linux system?
12. Which of the following URLs can be used to view a list of completed print jobs in CUPS?
13. When working with syslog - ng, which of the following is the correct path and filename for the primary configuration file?
14. When configuring email forwarding with Procmail, which of the following files is used as a user-based configuration file for Procmail?
15. Which command is used to remove an email from the mail queue with Postfix?
16. A user needs to work with printer-related items. Which of the following commands adds the user (called username in the options) to the appropriate group for this purpose?
17. Which option to the j ournalctl command will continuously update the display as new log entries are created?
18. You are deploying an Exim server and need to work with the firewall to ensure the proper incoming ports are open. Which protocol and port should you allow inbound for normal Simple Mail Transfer Protocol (SMTP) traffic?
19. Which command can be executed to view completed print jobs?
20. When viewing the syslog configuration, you notice a minus sign (-) preceding several log files. What is the significance of the - sign in the configuration?
21. Which of the following options can be given to journaicti in order to filter based on a service name?
22. When using the mail command, which option enables setting the From header?
23. Which syslog level is used to provide informational messages?
24. Which option to journaictl filters based on time?
25. Which option to timedatectl shows the available time zones?
26. Which of the following commands is used to view the pending messages queue on a Postfix server?
27. Which option within a logrotate configuration stanza informs logrotate to create a new log file owned by the user and group www-data and with permission 600?
28. You need to determine the size of the systemd journals on the system. Which option to journaicti is used for this purpose?
29. Which Postfix-related command is used to provide an overview of the number of messages in the incoming and active queues arranged by age?
30. Within the j ournald configuration file, which option is used to configure the maximum space used by Journal files?
31. Which option to journaictl can be used to specify an alternate location for Journal data, such as might be the case when retrieving Journal data from a rescue system or a filesystem copy?
32. When testing SMTP Communications between a client and a server, you need to begin the conversation. Which of the following lines shows the beginning of an SMTP conversation using Extended Hello syntax from mail.example.com?
33. You need to delete all messages from the queue on a Postfix server. Which of the following commands will perform this action?
34. When executing the ntpq command, you receive a message like read: Connection refused. What would this typically indicate?
35. Which of the following files enables per-user email forwarding?
36. Which of the following commands is used to examine the systemd Journal or log file?
37. Which command should be used to enable printer sharing through CUPS?
38. Which option within a logrotate configuration file disables compression of the log file?
39. Which of the following commands displays the current mail queue on a Postfix server?
40. Which of the following commands can be used to remove all jobs queued for printing?
41. When you’re running the NTP daemon, which command can you execute to work with the NTP server in an interactive mode?
42. Which set of programs or packages can be used for setting the system time on a device that is offline frequently?
43. Which stanza within a CUPS printers.conf configuration file is used to configure a default local printer with CUPS?
44. Which configuration option in /etc/logrotate. conf will cause the log to be emailed to admin@example. com when the logrotation process runs for the selected log?
45. Which option to journaicti will clear logs older than five days?
46. You need to find the mail queue path on a Postfix server. You’re using postconf -d to view all parameters. Which parameter contains the mail queue path on a Postfix server?
47. Which of the following commands causes the mail queue to be processed on a Postfix server?
48. Which command can be used to add a job to a print queue?
49. Which argument to the mail command sets the subject for the email to be sent?
50. Which of the following commands causes sendmail to attempt to deliver the messages in its queue?
51. Which command is used to query and work with the hardware clock on the system?
52. Which command can be used to monitor the status of chronyd?
53. Which command can be used to remove print Jobs from the queue?
54. Which of the following options to the sendmail command will print information about the mail queue?
55. Which of the following commands sets the hardware clock to Coordinated Universal Time (UTC) based on the current system time?
56. To what server address can you set a Network Time Protocol (NTP) client in order to receive time from a regionally local server?
57. Which directory contains a listing of available time zones on a Linux system?
58. When configuring a log file for rotation, you need to execute a command to run a script after log file rotation. Which option within the logrotate.conf configuration file can be used to facilitate this behavior?
59. Which of the following definitions in /etc/aliases will deliver mail destined to root to two email addresses, This email address is being protected from spambots. You need JavaScript enabled to view it. and This email address is being protected from spambots. You need JavaScript enabled to view it.?
60. When you’re working with klogd, which option can be used to control the file to which messages are logged?
61. Which of the following commands is used to determine the amount of disk space used by systemd Journal logfiles?
62. Assume that you want all email for the root user to be sent to This email address is being protected from spambots. You need JavaScript enabled to view it.. Which of the following lines in /etc/aliases will accomplish this task?
63. Within which directory hierarchy are queue-related messages stored for Postfix?
64. Which command can be used to gather and display statistics about mail processed on a server running sendmail?
65. You are viewing a directory listing of the /etc/localtime file and it looks like the following: lrwxrwxrwx 1 root root 35 Oct 15 2019 /etc/localtime -> /usr/share/zoneinfo/America/Chicago From that directory listing, what can you tell about the file?
66. What is the name of the systemd service that provides logging facilities?
67. Which option in journald.conf controls the maximum file size for individual journal logs?
68. Which command should be executed after making a change to the sendmail access database /etc/access?
69. Within which directory hierarchy will you find configuration files related to printing with the Common UNIX Printing System (CUPS) printing system?
70. Which option to ipr sends a print Job to a given destination?
71. You need to set the correct time zone on a server. How can you tell what the current time zone is set to?
72. Within the /etc/systemd/journald.conf file, which key/value pair will enable the Journal to be persistent?
73. Within which directory will you find configuration files for various logs that are to be rotated with logrotate?
74. Which of the following commands will set the date immediately and can be used from the command line in a script?
75. What is the default port for the CUPS administrative web interface?
76. Which option to journaicti will trim the Journal data size so that it consumes the amount specified?
77. Which option to the date command can be used to set the date and time?
78. Within /etc/ntp. conf, which of the following configuration lines sets the location of the drift file?
79. When running from a shell script, which command enables logging to syslog?
80. Which command must you run after making a change to email aliases on a server running Postfix?
81. Which access control directive in a CUPS configuration file configures the system to accept connections from the local network with addresses from 192,168,1,1 through 192,168,1,127?
82. Which shortcut can be used as the destination in an Exim alias to prevent Exim from delivering mail to a certain address, such as when you want to essentially delete the mail rather than deliver it?
83. You are troubleshooting a problem with printing and believe the CUPS service needs to be restarted. Which of the following commands can be used to restart CUPS on a server running systemd?
84. Which option to journalctl queries for only kernel messages?
85. Which character sequence is used to precede the host or IP in order to specify that TCP should be used for remote system logging in /etc/rsyslog.conf?
86. Which of the following is the configuration file used by the Chrony package?
87. Assuming that the $ModLoad imudp configuration option has been set in the configuration for rsyslogd, which of the following additional options is necessary to configure the port on which the server will listen?
88. You need to log output to the systemd Journal from a script. Which of the following commands facilitates this scenario?
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