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To earn the Oracle 1Z0-821 certification, candidates must pass a rigorous exam that covers a wide range of topics, including system installation and configuration, network administration, security and user management, and storage management. 1Z0-821 Exam consists of 75 multiple-choice questions and must be completed within 120 minutes.
NEW QUESTION # 238
Given:
file1 and file2 are text files.
dir1 and dir2 are directories.
Which two commands will be successful?
Answer: B,E
Explanation:
C: Here the wildcard character ? is used (Matches any single character). file1 and file2 will be copied into dir1
F: the two files file1 and file2 are copied into directoy dir1.
Note: cp - copy files and directories
Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.
Cp has three principal modes of operation. These modes are inferred from the type and count of arguments presented to the program upon invocation.
*When the program has two arguments of path names to files, the program copies the contents of the first file to the second file, creating the second file if necessary.
*When the program has one or more arguments of path names of files and following those an argument of a path to a directory, then the program copies each source file to the destination directory, creating any files not already existing.
*When the program's arguments are the path names to two directories, cp copies all files in the source directory to the destination directory, creating any files or directories needed. This mode of
operation requires an additional option flag, typically r, to indicate the recursive copying of directories. If the destination directory already exists, the source is copied into the destination, while a new directory is created if the destination does not exist.
Reference: man cp
NEW QUESTION # 239
Your SPARC server will not boot into multi user-server milestones and you need to troubleshoot to out why. You need to start the server with minimal services running so that you can go through each milestone manually to troubleshoot the issue.
Select the option that boots the server with the fewest services running.
Answer: B
Explanation:
The command boot -m milestone=none is useful in repairing a system that have problems booting early.
Boot Troubleshooting: To step through the SMF portion of the boot process, start with: boot -m milestone=none Then step through the milestones for the different boot levels: svcadm milestone svc:/milestone/single-user:default svcadm milestone svc:/milestone/multi-user:default svcadm milestone svc:/milestone/multi-user-server:default
NEW QUESTION # 240
You have been asked to terminate a process that appears to be hung and will not terminate. The process table is shown below:
root 15163 15156 0 12:51:15 pts/3 0:00 hungscript
What command will terminate the process?
Answer: D
Explanation:
Here we should use SIGTERM to terminate the process.
Note:
When no signal is included in the kill command-line syntax, the default signal that is used is -15
(SIGKILL). Using the -9 signal (SIGTERM) with the kill command ensures that the process
terminates promptly. However, the -9 signal should not be used to kill certain processes, such as
a database process, or an LDAP server process. The result is that data might be lost.
Tip - When using the kill command to stop a process, first try using the command by itself, without
including a signal option. Wait a few minutes to see if the process terminates before using the kill
command with the -9 signal.
Reference: Terminate the process
NEW QUESTION # 241
dbzone is currently running on your server.
Which two methods would you use to safely and cleanly shut down dbzone and all of its applications?
Answer: A,B
Explanation:
Explanation/Reference:
Explanation:
D: zoneadm halt command halts the specified zones. halt bypasses running the shutdown scripts inside the zone. It also removes run time resources of the zone.
E: Use: zlogin zone shutdown
to cleanly shutdown the zone by running the shutdown scripts.
Use this procedure to cleanly shut down a zone.
1. Become superuser, or assume the Primary Administrator role.
2. Log in to the zone to be shut down, for example, my-zone, and specify shutdown as the name of the utility and init 0 as the state global# zlogin my-zone shutdown -y -g0 -i 0
NEW QUESTION # 242
Which network protocol provides connectionless, packet-oriented communication between applications?
Answer: D
Explanation:
The User Datagram Protocol (UDP) is one of the core members of the Internet Protocol Suite, the set of network protocols used for the Internet. With UDP, computer applications can send messages, in this case referred to as datagrams, to other hosts on an Internet Protocol (IP) network without requiring prior communications to set up special transmission channels or data paths. Compared to TCP, UDP is a simpler message-based connectionless protocol.
NEW QUESTION # 243
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