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2021 Jun 1Z0-053 exam question

Q101. You have lost all your RMAN backup set pieces due to a disk failure. Unfortunately, you have an automated cross-check script that also does a delete expired backupset command. You have restored all the backup set pieces from tape. What command would you use to get those backup set pieces registered in the recovery catalog and the control file of the database again?

A. register database

B. recover catalog

C. load backupset

D. synch metadata

E. catalog start with

Answer: E

Q102. You want to set the following Initialization parameters for your database Instance





Identify the statement that correctly describes this setting.

A. The MANDATORY location must be a flash recovery area.

B. The optional destinations may not use the flash recovery area.

C. This setting is not allowed because the first destination is not set as MANDATORY.

D. The online redo log file is not allowed to be overwritten if the archived log cannot be created in the fourth destination.

Answer: D

Q103. A database instance is using an Automatic Storage Management (ASM) instance, which has a disk group, DGROUP1, created as follows:


FAILGROUP controller1 DISK '/devices/diska1', '/devices/diska2'

FAILGROUP controller2 DISK '/devices/diskb1', '/devices/diskb2' ;

What happens when the whole CONTROLLER1 Failure group is damaged?

A. The transactions that use the disk group will halt.

B. The mirroring of allocation units occurs within the CONTROLLER2 failure group.

C. The data in the CONTROLLER1 failure group is shifted to the CONTROLLER2 failure group and implicit rebalancing is triggered.

D. The ASM does not mirror any data and newly allocated primary allocation units (AU) are stored in the CONTROLLER2 failure group.

Answer: C

Q104. To accomplish user-managed backup for the USERS tablespace, you issued the following command to put the database in backup mode:


While copying the file to the backup destination a power outage caused the instance to te minate abnormally.

Which statement is true about the next database startup and the USERS tablespace?

A. The database will open, and the tablespace automatically comes out of the backup mode.

B. The database will be mounted, and recovery must be performed on the USERS tablespace.

C. The database will be mounted, and data files in the USERS tablespace must be taken out of the backup mode.

D. The database will not be mounted, and you must restore all the data files for the USERS tablespace from the backup, and perform recovery.

Answer: C

Q105. Your company wants to upgrade the current production database to the RAC environment. To perform testing before migrating to the RAC environment, you performed the workload capture on the production database to record the peak workload. You set up the test RAC database and want to replay the recorded workload on the testmachine. Note the following steps that you may require to replay the database workload:

1) Preprocess the captured workload.

2) Restart the database in RESTRICTED mode.

3) Set up the Replay Clients.

4) Restore the test database to the point when the capture started.

5) Remap connections.

Arrange the steps required in the correct sequence to accomplish this task on the test machine.

A. 1, 4, 5, 3 (2 is not required.)

B. 1, 4, 3, 5 (2 is not required.)

C. 1, 2, 4, 5 (3 is not required.)

D. 2, 1, 5, 3, 4

E. 1, 2, 4, 5, 3

Answer: A

Up to the immediate present 1z0-053 braindumps:

Q106. Which two client requests are captured during database replay Capture? (Choose two)

A. Flashback queries

B. Shared server requests

C. Login and logoff activities of sessions

D. Direct path load of data from external files by using utilities such as SQL *loader

E. Data definition language (DDL) and data manipulation language (DML) operations

Answer: CE

Q107. You want to configure the Flashback Database feature and retain flashback logs for three days. Presently the database is open and configured in ARCHIVELOG mode.

The following steps must be performed in the correct sequence to do this:

1. Set the retention target:


2. Enable Flashback Database:


3. Mount the database:


4. Shutdown the instance:


5. Open the database:


Choose the correct sequence.

A. 4, 1, 3, 2, 5

B. 4, 3, 1, 2, 5

C. 2, 4, 3, 5, 1

D. 4, 2, 5, 3, 1

Answer: B

Q108. View the Exhibit.

Examine the following command that is executed for the TRANSPORT table in the SH schema:

SQL> SELECT DBMS_STATS.CREATE_EXTENDED_STATS('sh', 'customers_obe', '(country_id, cust_state_province)') FROM dual;

Which statement describes the significance of this command?

A. It collects statistics into the pending area in the data dictionary.

B. It creates a virtual hidden column in the CUSTOMERS_OBE table.

C. It collects statistics with AUTO_SAMPLE_SIZE for ESTIMATE_PERCENT.

D. It creates a histogram to hold skewed information about the data in the columns.

Answer: B

Q109. Which three statements are true about windows? (Choose three.)

A. Only one window can be open at any given time

B. Consumer groups are associated with windows

C. Windows work with job classes to control resource allocation

D. The database service name must be provided during windows creation

E. Windows can automatically start job or change resource allocation among jobs for various time periods.

Answer: ACE

Q110. Users notify you that their application is failing every time they try to add new records. Because of poor application design, the actual ORA error message is unavailable. What might be the problem? (Choose the best answers.)

A. The application user has exceeded their undo quota.

B. The FLASHBACK GUARANTEE option is set on the undo tablespace.

C. The table is currently being queried by a Flashback Transaction Query operation.

D. The table is currently being queried by a Flashback Versions Query operation.

E. The RETENTION GUARANTEE option is set on the undo tablespace.

Answer: AE