If you do not provide an accessibility modifier for a method, it is private by default.
Answer the following statement true (T) or false (F)
True
You might also like to view...
Match the following commands to the corresponding descriptions.
_____ 1. lp xyz _____ 2. cat xyz _____ 3. rm i xyz _____ 4. /david/xyz _____ 5. cancel lp1 _____ 6. ls l _____ 7. cd .. _____ 8. ls a _____ 9. rmdir xyz _____ 10. pwd _____ 11. lpstat -d _____ 12. rm - -help _____ 13. lpr -p filename _____ 14. rm -r * _____ 15. lpstat _____ 16. ls -m _____ 17. cd _____ 18. mkdir - -parent xx/yy _____ 19. lpr -T _____ 20. lp -m filename a: absolute pathname to the file called xyz b: changes the directory to the parent of the current directory c: lists current directory files including the invisible files d: sends xyz file to the line printer e: deletes the directory called xyz f: displays the content of the file called xyz g: displays the current directory pathname h: cancels the printing job on the lp1 printer i: confirms the deletion of the xyz file before deleting it j: lists the current directory in long format k: lists files across the page separated by commas l: changes the current directory to the HOME directory m: removes all subdirectories and files under the current directory n: shows name of the default printer o: shows status of the printing requests p: sends mail to the user mailbox after completion of the print request q: prints on a specific (named) printer (Linux) r: Displays usage message for the rm command (Linux) s: creates two levels of directories under the current directory (Linux) t prints the specified title on the banner page (Linux)
The Weather app appears as a(n) ________ tile on the Windows Start menu
Fill in the blank(s) with correct word
How can you run journalctl and see all log entries?
BONUS TOOL: Journalctl The CyberOps Workstation VM is based on Arch Linux. Categorized as a Linux distribution, Arch Linux is designed to be lightweight, minimalist, and simple. As part of this design philosophy, Arch Linux uses systemd as its init system. In Linux, the init process is the first process loaded when the computer boots. Init is directly or indirectly the parent of all processes running on the system. It is started by the kernel at boot time and continues to run until the computer shuts down. Typically, init has the process ID 1. An init system is a set of rules and conventions governing the way the user space in a given Linux system is created and made available to the user. Init systems also specify system-wide parameters such as global configuration files, logging structure, and service management. Systemd is a modern init system designed to unify Linux configuration and service behavior across all Linux distributions and has been increasingly adopted by major Linux distributions. Arch Linux relies on systemd for init functionality. The CyberOps Workstation VM also uses systemd. system-journald (or simply journald) is systemd’s event logging service and uses append-only binary files serving as its log files. Notice that journald does not impede the use of other logging systems such as syslog and rsyslog. This section provides a brief overview of journalctl, a journald utility used for log viewing and real-time monitoring. a. In a terminal window in the CyberOps Workstation VM, issue the journalctl command with no options to display all journal log entries (it can be quite long):
[analyst@secOps ~]$ journalctl Hint: You are currently not seeing messages from other users and the system. Users in groups 'adm', 'systemd-journal', 'wheel' can see all messages. Pass -q to turn off this notice. -- Logs begin at Fri 2014-09-26 14:13:12 EDT, end at Fri 2017-03-31 09:54:58 EDT Sep 26 14:13:12 dataAnalyzer systemd[1087]: Starting Paths. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Reached target Paths. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Starting Timers. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Reached target Timers. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Starting Sockets. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Reached target Sockets. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Starting Basic System. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Reached target Basic System. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Starting Default. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Reached target Default. Sep 26 14:13:12 dataAnalyzer systemd[1087]: Startup finished in 18ms. Sep 26 14:14:24 dataAnalyzer systemd[1087]: Stopping Default.The output begins with a line similar to the one below, marking the timestamp where the system started logging. Notice that the timestamps will vary from system to system.
-- Logs begin at Fri 2014-09-26 13:22:51 EDT, end at Fri 2017-03-31 10:12:19 EDT. –-journalctl includes a number of functionalities such as page scrolling, color-coded messages and more. Use the keyboard up/down arrow keys to scroll up/down the output, one line at a time. Use the left/right keyboard arrow keys to scroll sideways and display log entries that span beyond the boundaries of the terminal window. The
Hint: You are currently not seeing messages from other users and the system.
Users in groups 'adm', 'systemd-journal', 'wheel' can see all messages.
Pass -q to turn off this notice.
This message reminds you that, because analyst is a regular user and not a member of either the adm, systemd-journal or wheel groups, not all log entries will be displayed by journalctl. It also states that running journalctl with the –q option suppresses the hint message.
When using the police portable radio, you speak
a. in a normal voice horizontally across the face of the microphone. b. directly into the microphone of the transmitter. c. with the microphone of the transmitter facing away from the speaker. d. loudly into the microphone to ensure message is transmit-ted.