1Z0-053 | The Down to date Guide To 1Z0-053 practice test
Q391. You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours:
ALTER DISKGROUP dg01 SET ATTRIBUTE 'disk_repair_time' = '5h'
To which disks in the disk group will the new value be applicable?
A. all disks in the disk group
B. all disks that are currently in OFFLINE mode
C. all disks that are not currently in OFFLINE mode
D. all disks in the disk group only if all of them are ONLINE
Answer: C
Q392. The DBA has chosen to manage SGA and PGA memory separately in an OLTP database because of his unique knowledge of the application. Which of these are good starting points to use when configuring the maximum values for SGA and PGA, based on the amount of memory available on the system?
A. 20% SGA, 80% PGA
B. 25% SGA, 75% PGA
C. 50% SGA, 50% PGA
D. 75% SGA, 25% PGA
E. 80% SGA, 20% PGA
Answer: E
Q393. What is the purpose of the until change option of the restore command?
A. It allows you to select the SCN that you want to restore to.
B. It allows you to select the log sequence number you want to restore to.
C. It allows you to select the timestamp you want to restore to.
D. It allows you to manually stop the restore at any time as online redo logs are applied.
E. None of the above.
Answer: A
Q394. Sales details are being stored on a daily basis in the SALES_2007 table. A large amount of data is added to the table daily. To save disk space, you issued the following command:
ALTER TABLE sales_2007 COMPRESS FOR ALL OPERATIONS;
What would be the outcome of this command?
A. It produces an error because data already exists in the table.
B. It produces an error because compression can be enabled at table creation only.
C. It compresses all data added or modified henceforth but the existing data in the table is not compressed immediately.
D. It immediately compresses all existing data as well as new data, resulting from either fresh additions or modifications to existing data.
Answer: C
Q395. USER_DATA is a nonencrypted tablespace that contains a set of tables with data. You want to convert all existing data in the USER_DATA tablespace and the new data into the encrypted format. Which methods would you use to achieve this? (Choose all that apply.)
A. Use Data Pump to transfer the existing data to a new encrypted tablespace.
B. Use ALTER TABLE. MOVE to transfer the existing data to a new encrypted tablespace.
C. Use CREATE TABLE AS SELECT to transfer the existing data to a new encrypted tablespace.
D. Enable row movement for each table to be encrypted and then use ALTER TABLESPACE to encrypt the tablespace.
E. Encrypt the USER_DATA tablespace using the ALTER TABLESPACE statement so that all the data in the tablespace is automatically encrypted.
Answer: ABC
Q396. Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)
A. The ADR base keeps all diagnostic information in binary format
B. SQL*Plus provides the ADRI script, which can be used to work with ADR
C. The ADR can be used for problem diagnosis only when the database is open
D. The ADR can be disabled by settting the DIAGNOSTIC_DEST parameter to null
E. The ADR can be used for problem diagnosis even when the database instance is down
F. The ADR base is shared across multiple instances
Answer: EF
Q397. Examine the parameter setting in your database:
Which statement is correct about the database?
A. Automatic memory management is disabled because PGA_AGGREGATE_TARGET and SGA_TARGET are not set
B. The instance is started but the database will not be opened until PGA_AGGREGATE_TARGET and SGA_TARGET are set
C. The database is opened but users cannot perform transactions until PGA_AGGREGATE_TARGET and SGA_TARGET are set
D. Automatic memory management is enabled and, as per policy, 60% of the memory for System Global Area (SGA) and 40% of the memory for Program Global Area (PGA) will be distributed at startup
Answer: D
Q398. View the Exhibit and examine the steps that you executed to create a database resource plan. Subsequently, you execute the following procedure which results in an error:
SQL> EXECUTE dbms_resources_manager.validate_pending_area ( );
What could be the reason?
Exhibit:
A. The pending area is automatically submitted after the plan creation
B. The procedure must be executed before creating the resources plan directive
C. The SYS_GROUP resource consumer group is not included in the resource plan directive
D. The OTHER_GROUPS resources consumer group is not included in the resource plan directive
Answer: D
Q399. Which of the following statements are true regarding the Recycle Bin? (Choose all that apply.)
A. The Recycle Bin is a physical storage area for dropped objects.
B. The Recycle Bin is a logical container for dropped objects.
C. The Recycle Bin stores the results of a Flashback Drop operation.
D. The objects in the Recycle Bin are stored in the tablespace in which they were created.
Answer: BD
Q400. Which of the following datatypes store time-zone information in the database?
A. TIMESTAMP
B. DATE
C. TIMESTAMP WITH TIME ZONE
D. TIMESTAMP WITH LOCAL TIME ZONE
E. DATETIME
Answer: C