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NEW QUESTION: 1
Your production database is functional on the SHOST1 host. You are backing up the production database by using Recovery Manager (RMAN) with the recovery catalog. You want to replicate the production database to anther host, SHOST2, for testing new applications.
After you ensured that the backups of the target database are accessible on the new host, what must you do to restore and recover the backup for the test environment?
A. Restoring the server parameter file from the backup by using the recovery catalog to restore,
B. Restoring the data files from the backup by using the recovery catalog to recover the files, and using the SWITCH command to change the location.
C. Restoring the data files by using the NOCATALOG option and using the SET NEWNAME command to change the location
D. Restoring the control file from the backup by using the NOCATALOG option to restore, and recovering the data files
Answer: D
Explanation:
Refer to here:
To restore the database on a new host:
1.Ensure that the backups of the target database are accessible on the new host.
2.Configure the ORACLE_SID on hostb.
3.Start RMAN on hostb and connect to the target database without connecting to the
recovery catalog.
For example, enter the following command:
% rman NOCATALOG
RMAN> CONNECT TARGET
/
4.Set the DBID and start the database instance without mounting the database.
For example, run SET DBID to set the DBID, then run STARTUP NOMOUNT:
SET DBID 1340752057;
STARTUP NOMOUNT
RMAN fails to find the server parameter file, which has not yet been restored, but starts the
instance with a "dummy" file. Sample output follows:
startup failed: ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/net/hostb/oracle/dbs/inittrgta.ora'
trying to start the Oracle instance without parameter files ...
Oracle instance started
5.Restore and edit the server parameter file.
Allocate a channel to the media manager, then restore the server parameter file as a client-
side parameter file and use the SET command to indicate the location of the autobackup
(in this example, the autobackup is in /tmp):
RUN
{
ALLOCATE CHANNEL c1 DEVICE TYPE sbt PARMS '...';
SET CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/tmp/%F';
RESTORE SPFILE
TO PFILE '?/oradata/test/inittrgta.ora'
FROM AUTOBACKUP;
SHUTDOWN ABORT;
}
6.Edit the restored initialization parameter file.
Change any location-specific parameters, for example, those ending in _DEST, to reflect
the new directory structure. For example, edit the following parameters:
-IFILE
-LOG_ARCHIVE_DEST_1
-CONTROL_FILES
7.Restart the instance with the edited initialization parameter file.
For example, enter the following command:
STARTUP FORCE NOMOUNT PFILE='?/oradata/test/inittrgta.ora';
8.Restore the control file from an autobackup and then mount the database. For example, enter the following command:
RUN
{
ALLOCATE CHANNEL c1 DEVICE TYPE sbt PARMS '...';
RESTORE CONTROLFILE FROM AUTOBACKUP;
ALTER DATABASE MOUNT;
}
RMAN restores the control file to whatever locations you specified in the CONTROL_FILES
initialization parameter.
9.Catalog the data file copies that you copied in "Restoring Disk Backups to a New Host",
using their new file names or CATALOG START WITH (if you know all the files are in
directories with a common prefix easily addressed with a CATALOG START WITH
command). For example, run:
CATALOG START WITH '/oracle/oradata/trgt/';
If you want to specify files individually, then you can execute a CATALOG command as
follows:
CATALOG DATAFILECOPY
'/oracle/oradata/trgt/system01.dbf', '/oracle/oradata/trgt/undotbs01.dbf',
'/oracle/oradata/trgt/cwmlite01.dbf', '/oracle/oradata/trgt/drsys01.dbf',
'/oracle/oradata/trgt/example01.dbf', '/oracle/oradata/trgt/indx01.dbf',
'/oracle/oradata/trgt/tools01.dbf', '/oracle/oradata/trgt/users01.dbf';
10.
Start a SQL*Plus session on the new database and query the database file names recorded in the control file. Because the control file is from the trgta database, the recorded file names use the original hosta file names. You can query V$ views to obtain this information. Run the following query in SQL*Plus:
COLUMN NAME FORMAT a60 SPOOL LOG '/tmp/db_filenames.out' SELECT FILE# AS "File/Grp#", NAME FROM V$DATAFILE UNION SELECT GROUP#,MEMBER FROM V$LOGFILE; SPOOL OFF EXIT
11.
Write the RMAN restore and recovery script. The script must include the following steps:
a.For each data file on the destination host that is restored to a different path than it had on the source host, use a SET NEWNAME command to specify the new path on the destination host. If the file systems on the destination system are set up to have the same paths as the source host, then do not use SET NEWNAME for those files restored to the same path as on the source host.
b.For each online redo log that is to be created at a different location than it had on the source host, use SQL ALTER DATABASE RENAME FILE commands to specify the path
name on the destination host. If the file systems on the destination system are set up to have the same paths as the source host, then do not use ALTER DATABASE RENAME FILE for those files restored to the same path as on the source host.
c.Perform a SET UNTIL operation to limit recovery to the end of the archived redo logs.
The recovery stops with an error if no SET UNTIL command is specified.
d.Restore and recover the database.
e.Run the SWITCH DATAFILE ALL command so that the control file recognizes the new
path names as the official new names of the data files.
Example 20-3 shows the RMAN script reco_test.rman that can perform the restore and
recovery operation.
Example 20-3 Restoring a Database on a New Host:
RUN
{
# allocate a channel to the tape device
ALLOCATE CHANNEL c1 DEVICE TYPE sbt PARMS '...';
# rename the data files and online redo logs
SET NEWNAME FOR DATAFILE 1 TO '?/oradata/test/system01.dbf';
SET NEWNAME FOR DATAFILE 2 TO '?/oradata/test/undotbs01.dbf';
SET NEWNAME FOR DATAFILE 3 TO '?/oradata/test/cwmlite01.dbf';
SET NEWNAME FOR DATAFILE 4 TO '?/oradata/test/drsys01.dbf';
SET NEWNAME FOR DATAFILE 5 TO '?/oradata/test/example01.dbf';
SET NEWNAME FOR DATAFILE 6 TO '?/oradata/test/indx01.dbf';
SET NEWNAME FOR DATAFILE 7 TO '?/oradata/test/tools01.dbf';
SET NEWNAME FOR DATAFILE 8 TO '?/oradata/test/users01.dbf';
SQL "ALTER DATABASE RENAME FILE ''/dev3/oracle/dbs/redo01.log''
TO ''?/oradata/test/redo01.log'' ";
SQL "ALTER DATABASE RENAME FILE ''/dev3/oracle/dbs/redo02.log''
TO ''?/oradata/test/redo02.log'' ";
# Do a SET UNTIL to prevent recovery of the online logs
SET UNTIL SCN 123456;
# restore the database and switch the data file names
RESTORE DATABASE;
SWITCH DATAFILE ALL;
# recover the database
RECOVER DATABASE;
}
EXIT
12.
Execute the script created in the previous step.
For example, start RMAN to connect to the target database and run the @ command:
% rman TARGET / NOCATALOG
RMAN> @reco_test.rman
13.
Open the restored database with the RESETLOGS option.
From the RMAN prompt, open the database with the RESETLOGS option:
ALTER DATABASE OPEN RESETLOGS;
Caution:
When you re-open your database in the next step, do not connect to the recovery catalog.
Otherwise, the new database incarnation created is registered automatically in the recovery
catalog, and the file names of the production database are replaced by the new file names
specified in the script.
14.
Optionally, delete the test database with all of its files.
Note:
If you used an ASM disk group, then the DROP DATABASE command is the only way to
safely remove the files of the test database. If you restored to non-ASM storage then you
can also use operating system commands to remove the database.
Use the DROP DATABASE command to delete all files associated with the database
automatically. The following example deletes the database files:
STARTUP FORCE NOMOUNT PFILE='?/oradata/test/inittrgta.ora';
DROP DATABASE;
Because you did not perform the restore and recovery operation when connected to the recovery catalog, the recovery catalog contains no records for any of the restored files or the procedures performed during the test. Likewise, the control file of the trgta database is completely unaffected by the test.

NEW QUESTION: 2
A security analyst has received several reports of an issue on an internal web application. Users state they are having to provide their credentials twice to log in. The analyst checks with the application team and notes this is not an expected behavior. After looking at several logs, the analyst decides to run some commands on the gateway and obtains the following output:

Which of the following BEST describes the attack the company is experiencing?
A. DNS hijacking
B. URL redirection
C. MAC flooding
D. ARP poisoning
Answer: D
Explanation:
Explanation
ARP Poisoning (also known as ARP Spoofing) is a type of cyber attack carried out over a Local Area Network (LAN) that involves sending malicious packets to a default gateway on a LAN in order to change the pairings in its IP to MAC address table. Protocol translates IP addresses into MAC addresses.

NEW QUESTION: 3
회사가 대규모 응용 프로그램을 온-프레미스로 실행하고 있습니다. 기술 스택은 웹 서버 플랫폼 용 Microsoft .NET과 데이터베이스 용 Apache Cassandra로 구성됩니다. 회사는 서비스 안정성을 개선하기 위해 애플리케이션을 AWS로 마이그레이션하려고 합니다. IT 팀은 또한이 인프라의 용량 관리 및 유지 관리에 소요되는 시간을 줄이려고합니다. 개발 팀은 마이그레이션을 지원하기 위해 코드를 변경하려고 합니다.
마이그레이션 후 관리해야 할 LEAST 컴플렉스는 어느 것입니까?
A. .NET을 실행하는 Auto Scaling 그룹의 웹 서버를 Amazon EC2 인스턴스로 마이그레이션합니다.
기존 Cassandra 데이터베이스를 Amazon DynamoDB로 마이그레이션하십시오.
B. 다중 AZ Auto Scaling 구성에서 .NET 플랫폼을 실행하는 AWS Elastic Beanstalk 환경으로 웹 서버를 마이그레이션하십시오. 기존 Cassandra 데이터베이스를 Amazon DynamoDB로 마이그레이션하십시오.
C. 다중 AZ Auto Scaling 구성에서 .NET 플랫폼을 실행하는 AWS Elastic Beanstalk 환경으로 웹 서버를 마이그레이션하십시오. Cassandra 데이터베이스를 다중 AZ 구성에서 실행중인 Amazon EC2 인스턴스로 마이그레이션하십시오.
D. .NET을 실행하는 Auto Scaling 그룹의 웹 서버를 Amazon EC2 인스턴스로 마이그레이션하십시오.
다중 읽기 복제본을 사용하여 기존 Cassandra 데이터베이스를 Amazon Aurora로 마이그레이션하고 다중 AZ 모드에서 모두 실행하십시오.
Answer: A