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2021 Jun 1z0-050 latest exam
Q11. Identify the activities performed as part of the Automatic SQL Tuning process in the maintenance window? (Choose all that apply.)
A. generating the SQL profile
B. testing and accepting the SQL profile
C. generating a list of candidate SQLs for tuning
D. adding tuned SQL plans into the SQL plan baseline
E. tuning each SQL statement in the order of importance
F. generating baselines that include candidate SQLs for tuning
Q12. View the Exhibit for some of the current parameter settings.
A user logs in to the HR schema and issues the following commands:
SQL> CREATE TABLE emp
SQL> INSERT INTO emp(empno,ename) VALUES(1,'JAMES'); At this moment, a second user also logs in to the HR schema and issues the following command:
SQL> ALTER TABLE emp MODIFY sal NUMBER(10,2);
What happens in the above scenario?
A. A deadlock is created.
B. The second user's command executes successfully.
C. The second user's session immediately produces the resource busy error.
D. The second user's session waits for a time period before producing the resource busy error.
Q13. You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA, a big file tablespace of size 100 TB on tape drive, but you have tape drives of only 10 GB each.
Which method would accomplish the task quickly and efficiently?
A. intrafile parallel backup
B. parallel image copy backup
C. backup with MAXPIECESIZE configured for the channel
D. parallel backup with MAXPIECESIZE configured for the channel
Q14. You are working on a CATDB database that contains an Oracle Database version 11.1 catalog schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10.
You want the RMAN to import metadata for database IDs 1423241 and 1423242, registered in RCAT10, into the recovery catalog owned by RCO11. You executed the following commands:
RMAN> CONNECT CATALOG rco11/password@catdb
RMAN> IMPORT CATALOG rcat10/oracle@inst1 NO UNREGISTER;
Which two statements are true regarding the tasks accomplished with these commands? (Choose two.)
A. They import all metadata from the RCAT10 catalog.
B. They unregistered the database from the RCAT10 catalog.
C. They do not register the databases registered in the RCAT10 catalog.
D. They register all databases registered in the RCAT10 catalog.
Q15. Which steps are mandatory to enable Direct NFS?
1. Mount all required file systems using the kernel NFS driver.
2. Create an oranfstab file containing the attributes for each NFS server to be accessed using Direct NFS.
3. Replace the ODM library libodm11.so_stub with libodm11.so.
A. 2 and 3
B. 1 and 3
C. 1 and 2
D. 1, 2 and 3
Update 1z0-050 practice question:
Q16. You need to create a partitioned table to store historical data and you issued the following command:
CREATE TABLE purchase_interval
PARTITION BY RANGE (time_id)
INTERVAL (NUMTOYMINTERVAL(1,'month')) STORE IN (tbs1,tbs2,tbs3) (
PARTITION p1 VALUES LESS THAN(TO_DATE('1-1-2005', 'dd-mm-yyyy')), PARTITION p2 VALUES LESS THAN(TO_DATE('1-1-2007', 'dd-mm-yyyy'))) AS
WHERE time_id < TO_DATE('1-1-2007','dd-mm-yyyy');
What is the outcome of the above command?
A. It returns an error because the range partitions P1 and P2 should be of the same range.
B. It creates two range partitions (P1, P2). Within each range partition, it creates monthwise subpartitions.
C. It creates two range partitions of varying range. For data beyond '1-1-2007,' it creates partitions with a width of one month each.
D. It returns an error because the number of tablespaces (TBS1,TBS2,TBS3)specified does not match the number of range partitions (P1,P2) specified.
Q17. The following databases are registered in the base recovery catalog:
PROD1, PROD2, and PROD3. The database user CATOWNER owns the base recovery catalog. You want a new user VPC1 to have access to only the PROD1 database and create a virtual private catalog.
Given below are some of the commands required to achieve this:
1.SQL> GRANT recovery_catalog_owner TO vpc1;
2.RMAN> CONNECT CATALOG vpc1/password@catdb;
3.RMAN> GRANT CATALOG FOR DATABASE prod1 TO vpc1;
4.RMAN> CONNECT CATALOG catowner/password@catdb;
5.RMAN> CREATE VIRTUAL CATALOG;
What is the correct sequence in which the commands have to be executed?
A. 1, 4, 5, 2, 3
B. 1, 4, 3, 2, 5
C. 4, 5, 2, 3, 1
D. 2, 3, 4, 5, 1
E. 1, 4, 2, 3, 5
Q18. Which three statements are true regarding persistent lightweight jobs? (Choose three.)
A. The user cannot set privileges on persistent lightweight jobs.
B. The use of a template is mandatory to create persistent lightweight jobs.
C. Persistent lightweight jobs modify several tables in the data dictionary to generate a lot of redo.
D. Persistent lightweight jobs are useful when users need to create a large number of jobs in a short time.
E. Persistent lightweight jobs are useful when users need to create a small number of jobs that run infrequently.
Q19. Evaluate the following SQL statement used to create the PRODUCTS table:
CREATE TABLE products
(product_id NUMBER(3) PRIMARY KEY,
total_value AS ( qty * rate))
PARTITION BY RANGE (total_value)
(PARTITION p1 VALUES LESS THAN (100000),
PARTITION p2 VALUES LESS THAN (150000),
PARTITION p3 VALUES LESS THAN (MAXVALUE))
COMPRESS FOR ALL OPERATIONS;
Which statement is true regarding this command?
A. It executes successfully but partition pruning cannot happen for this partition key.
B. It produces an error because the TOTAL_VALUE column cannot be used as a partition key.
C. It produces an error because compression cannot be used for the TOTAL_VALUE partition key.
D. It executes successfully but the values in the TOTAL_VALUE column would not be physically stored in the partitions.
Q20. Evaluate the following code:
SQL>VARIABLE task_name VARCHAR2(255);
SQL>VARIABLE sql_stmt VARCHAR2(4000);
:sql_stmt := 'SELECT COUNT(*) FROM customers
WHERE cust_state_province =''CA'''
:task_name := 'MY_QUICKTUNE_TASK'
DBMS_ADVISOR.QUICK_TUNE(DBMS_ADVISOR.SQLACCESS_ADVISOR, :task_name, :sql_stmt);
What is the outcome of this block of code?
A. It creates a task and workload, and executes the task.
B. It creates a task and workload but does not execute the task.
C. It produces an error because a template has not been created.
D. It produces an error because the SQL Tuning Set has not been created.