Download Oracle Database 12cR2 Administration.1z0-072.RealTests.2019-10-15.48q.vcex
| Vendor: | Oracle |
| Exam Code: | 1z0-072 |
| Exam Name: | Oracle Database 12cR2 Administration |
| Date: | Oct 15, 2019 |
| File Size: | 833 KB |
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Demo Questions
Question 1
The ORCL database has DEFERRED_SEGMENT_CREATION set to TRUE.
UNDOTBS2 is the active undo tablespace.
Examine these commands:
USER1 executes DML, which generates more than 2 MB of UNDO.
What is the result and why?
- It suspends the transaction, which can be resumed by increasing the size of UNDOTBS2.
- It returns an error because UNDOTBS2 is fixed size and has RETENTION GUARANTEE.
- It suspends the transaction, which can be resumed by increasing USER1’s quota on UNDOTBS2.
- It returns an error because UNDOTBS2 has RETENTION GUARANTEE.
- It suspends the transaction, which can be resumed by setting UNDOTBS1 as the active undo tablespace.
- It returns an error because UNDOTBS2 is fixed size.
Correct answer: F
Question 2
Which three failures require intervention for recovery? (Choose three.)
- a user error such as dropping the wrong table
- network interface card (NIC) failure
- user process failure
- statement failure
- media failure
Correct answer: ACE
Question 3
Which three are true about Oracle Managed Files (OMF)? (Choose three.)
- If DB_CREATE_FILE_DEST is specified but DB_CREATE_ONLINE_LOG_DEST_n is not, the redo logs and control files are placed in DB_CREATE_FILE_DEST by default.
- If DB_RECOVERY_FILE_DEST is specified, at least two different locations must be specified for DB_CREATE_ONLINE_LOG_DEST_n.
- If only DB_CREATE_FILE_DEST is specified, only the data files and temp files are OMF.
- If DB_RECOVERY_FILE_DEST is specified but DB_CREATE_ONLINE_LOG_DEST_n is not, the redo logs and control files are placed in DB_RECOVERY_FILE_DEST by default.
- If DB_CREATE_ONLINE_LOG_DEST_1 is specified but DB_CREATE_FILE_DEST is not, the data files and temp files are placed in DB_CREATE_ONLINE_LOG_DEST_1 by default.
- If only DB_CREATE_ONLINE_LOG_DEST_n is specified, only the redo logs and control files are OMF.
Correct answer: ABF
Question 4
In your database, you create a user, HR, and then execute this command:
Which three actions can HR perform? (Choose three.)
- Grant the CREATE SESSION privilege without ADMIN OPTION to other users.
- Grant the CREATE SESSION privilege with ADMIN OPTION to other users.
- Execute DML statements in the HR schema.
- Log in to the database instance.
- Revoke the CREATE SESSION privilege from other users.
- Execute DDL statements in the HR schema.
Correct answer: BDE
Explanation:
Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9013.htm Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9013.htm
Question 5
TBS1 is a permanent user-defined tablespace created with Oracle Managed Files (OMF).
Examine this command:
Which is required to ensure that TBS1 is dropped and its datafiles are deleted from their file system?
- The INCLUDING CONTENTS AND DATAFILES clause must be added to the command.
- TBS1 must be placed in READ ONLY state.
- Objects in TBS1 must not be in use when the command is executed.
- TBS1 must not contain any temp files.
- DB_CREATE_FILE_DEST must refer to an Oracle Automatic Storage Management (ASM)disk group.
Correct answer: A
Explanation:
Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9004.htm Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_9004.htm
Question 6
Which three types of files are created by expdp operations? (Choose three.)
- SQL files
- dump files
- reject files
- log files
- input data files
- bad files
- control files
Correct answer: ABD
Explanation:
Reference: https://docs.oracle.com/cd/B28359_01/server.111/b28319/dp_export.htm#g1022624 Reference: https://docs.oracle.com/cd/B28359_01/server.111/b28319/dp_export.htm#g1022624
Question 7
Which statement is true about smallfile tablespaces?
- Extent location metadata is stored in the data dictionary by default.
- The number of data files is constrained only by the size of the storage array.
- Maximum file size can be set to unlimited only if the logical volume manager supports striping.
- Segments can span multiple tablespaces.
- Segments can span multiple data files.
Correct answer: E
Explanation:
Reference: https://docs.oracle.com/database/121/CNCPT/logical.htm Reference: https://docs.oracle.com/database/121/CNCPT/logical.htm
Question 8
Which two are true about RETENTION GUARANTEE? (Choose two.)
- It is a tablespace attribute.
- It prevents FLASHBACK DATABASE operation failure.
- It prevents out-of-space errors.
- It prevents “Snapshot too old” errors.
- It is a static parameter.
Correct answer: AB
Question 9
Examine this command:
Which two changes must you make so that TEMP_TBS is created? (Choose two.)
- Add the EXTENT MANAGEMENT LOCAL UNIFORM clause.
- Add the NOLOGGING clause.
- Remove the SEGMENT MANAGEMENT AUTO clause.
- Remove the AUTOEXTEND ON clause.
- Remove the ONLINE clause.
- Add MAXSIZE for the AUTOEXTEND ON clause.
Correct answer: AF
Explanation:
Reference: https://asktom.oracle.com/pls/asktom/f?p=100:11:::::P11_QUESTION_ID:374218170986 Reference: https://asktom.oracle.com/pls/asktom/f?p=100:11:::::P11_QUESTION_ID:374218170986
Question 10
What three are true about Oracle Flashback technology? (Choose three.)
- FLASHBACK TRANSACTION can be used to undo the changes made by a committed transaction.
- FLASHBACK TABLE can be used to rewind a table back in time.
- FLASHBACK DATABASE can be used to rewind a database back and forth in time.
- FLASHBACK TABLE can be used to undo dropping a column from a table.
- FLASHBACK QUERY can be used to view committed data at any given point in time.
Correct answer: ACD
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