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Our 1z0-062 Testking exam questions are famous for its high-efficiency and high pass rate as 98% to 100%. Buy our 1z0-062 Testking study guide, and you will pass the exam easily. Please follow your heart. In a knowledge-based job market, learning is your quickest pathway, your best investment. 1z0-062 PDF DEMO: QUESTION NO: 1 Identify three valid methods of opening, pluggable databases (PDBs). ALTER PLUGGABLE DATABASE OPEN issued from that PDB B. ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from the root C.
ALTER PLUGGABLE DATABASE PDB OPEN issued from another PDB D. ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from a PDB E. ALTER DATABASE PDB OPEN issued from the root F. ALTER PLUGGABLE DATABASE PDB OPEN issued from the seed G. ALTER DATABASE OPEN issued from that PDB Answer: A,B,G Explanation E: You can perform all ALTER PLUGGABLE DATABASE tasks by connecting to a PDB and running the corresponding ALTER DATABASE statement.
This functionality is provided to maintain backward compatibility for applications that have been migrated to a CDB environment. AG: When you issue an ALTER PLUGGABLE DATABASE OPEN statement, READ WRITE is the default unless a PDB being opened belongs to a CDB that is used as a physical standby database, in which case READ ONLY is the default. You can specify which PDBs to modify in the following ways: List one or more PDBs. Specify ALL to modify all of the PDBs. Specify ALL EXCEPT to modify all of the PDBs, except for the PDBs listed.
QUESTION NO: 2 Automatic Shared Memory Management (ASMM) is enabled for your database instance. You execute the following command: SQL ALTER SYSTEM SET DBCACHESIZE = 100M; Which statement is true? It succeeds and the value is changed in the SPFILE immediately, but the change takes effect only at the next instance startup. It fails because DBCACHESIZE is a static initialization parameter. It succeeds and the minimum size for the DEFAULT buffer pool is set to 100M. It fails because ASMM is enabled and individual SGA components cannot be sized.
Answer: C QUESTION NO: 3 You created an encrypted tablespace: You then closed the encryption wallet because you were advised that this is secure. Later in the day, you attempt to create the EMPLOYEES table in the SECURESPACE tablespace with the SALT option on the EMPLOYEE column. Which is true about the result? It generates an error when creating the table because the wallet is closed. It creates the table successfully but does not encrypt any inserted data in the EMPNAME column because the wallet must be opened to encrypt columns with SALT.
It creates the table successfully, and encrypts any inserted data in the EMPNAME column because the wallet needs to be open only for tablespace creation. It generates error when creating the table, because the salt option cannot be used with encrypted tablespaces. Answer: A QUESTION NO: 4 Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HRPDB and ACCOUNTSPDB. An RMAN backup exists for the database.
You issue the command to open ACCOUNTSPDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTSPDB is corrupted. What should you do before executing the commands to restore and recover the data file in ACCOUNTSPDB? Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accountspdb CLOSE IMMEDIATE command. Issue the ALTER PLUGGABLE DATABASE accountspdb RESTRICTED command. Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTSPDB. Take the USERDATA tablespace offline in ACCOUNTSPDB. Answer: D Explanation.
You can take an online tablespace offline so that it is temporarily unavailable for general use. The rest of the database remains open and available for users to access data. Conversely, you can bring an offline tablespace online to make the schema objects within the tablespace available to database users. The database must be open to alter the availability of a tablespace.
QUESTION NO: 5 Execute SHUTDOWN TRANSACTIONAL Identify the required steps in the correct sequence. 4, 2, 5, 1, 6 B. 2, 3, 1, 6 C. 2, 5, 1, 6 D. 1, 2, 3, 4, 6 Answer: C Reference: 2. Examine the parameter for your database instance: You generated the execution plan for the following query in the plan table and noticed that the nested loop join was done.
After actual execution of the query, you notice that the hash join was done in the execution plan: Identify the reason why the optimizer chose different execution plans. The optimizer used a dynamic plan for the query. The optimizer chose different plan because extended statistics were created for the columns used. The optimizer chose different plans because automatic dynamic sampling was enabled. The optimizer used re-optimization cardinality feedback for the query. On your Oracle Database, you issue the following commands to create indexes: SQL CREATE INDEX oe.ordcustomerix1 ON oe.orders (customerid, salesrepid) INVISIBLE; SQL CREATE BITMAP INDEX oe.ordcustomerix2 ON oe.orders (customerid, salesrepid); Which two statements are true?
(Choose two.) A. Only the ORDCUSTOMERIX1 index created. Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table. Both the indexes are created: however, only ORDCUSTOMERSIX1 is used by the optimizer for queries on the ORDERS table. Both the indexes are created: however, only ORDCUSTOMERSIX2 is used by the optimizer for queries on the ORDERS table.
Both the indexes are created and used by the optimizer for queries on the ORDERS table. The ORDCUSTOMERIX1 index is not used by the optimizer even when the OPTIMIZERUSEINVISIBLEINDEXES parameters is set to true. Answer: B,D Explanation Not A: Both indexes are created fine. B: The invisible index ORDCUSTOMERSIX1 and the bitmap index are both updated by DML operations on the Orders table. F: Since ORDCUSTOMERSIX1 is invisible only ORDCUSTOMERSIX2 is used by the query optimizer. Not C, Not D, Not E:.
ordcustomerix1 is an invisible index and is therefore not used by the optimizer. VISIBLE INVISIBLE Use this clause to specify whether the index is visible or invisible to the optimizer. An invisible index is maintained by DML operations, but it is not be used by the optimizer during queries unless you explicitly set the parameter OPTIMIZERUSEINVISIBLEINDEXES to TRUE at the session or system level. Note: Specify BITMAP to indicate that index is to be created with a bitmap for each distinct key, rather than indexing each row separately. Bitmap indexes store the rowids associated with a key value as a bitmap. Each bit in the bitmap corresponds to a possible rowid. If the bit is set, then it means that the row with the corresponding rowid contains the key value.
The internal representation of bitmaps is best suited for applications with low levels of concurrent transactions, such as data warehousing. Your multitenant container database (CDB) contains some pluggable databases (PDBs), you execute the following command in the root container: Which two statements are true?
(Choose two.) A. The command will create a user in the root container only because the container clause is not used. The C # # AADMIN user will be able to use the TEMPTS temporary tablespace only in root.
The command will, create a common user whose description is contained in the root and each PDB. Schema objects owned by the C# # AADMIN common user can be shared across all PDBs. The schema for the common user C # # AADMIN can be different in each container. Answer: C,E 5. You wish to enable an audit policy for all database users, except SYS, SYSTEM, and SCOTT.
You issue the following statements: SQL AUDIT POLICY ORADATABASEPARAMETER EXCEPT SYS; SQL AUDIT POLICY ORADATABASEPARAMETER EXCEPT SYSTEM; SQL AUDIT POLICY ORADATABASEPARAMETER EXCEPT SCOTT; For which database users is the audit policy now active? All users except SCOTT B. All users except sys, system, and SCOTT C. All users except SYS D.
All users except sys and SCOTT Answer: A Explanation If you run multiple AUDIT statements on the same unified audit policy but specify different EXCEPT users, then Oracle Database uses the last exception user list, not any of the users from the preceding lists. This means the effect of the earlier AUDIT POLICY. EXCEPT statements are overridden by the latest AUDIT POLICY. EXCEPT statement. Note:. The ORADATABASEPARAMETER policy audits commonly used Oracle Database parameter settings. By default, this policy is not enabled.
You can use the keyword ALL to audit all actions. The following example shows how to audit all actions on the HR.EMPLOYEES table, except actions by user pmulligan. Example Auditing All Actions on a Table CREATE AUDIT POLICY allactionsonhremppol ACTIONS ALL ON HR.EMPLOYEES; AUDIT POLICY allactionsonhremppol EXCEPT pmulligan; References: 6. In your Oracle 12c database, you invoke SQL.Loader Express Mode command to load data: $ sqlldr hr/hr table=employees Which two statements are true about this command? (Choose two.) A.
It fails because the SQL.Loader data file location is not specified. It succeeds even if the HR user does not have the CREATE DIRECTORY privilege. It fails because the SQL.Loader control file location is not specified. It succeeds and creates the EMPLOYEES table in the HR schema if the table does not exist. It succeeds with default settings if the EMPLOYEES table belonging to the HR schema is already defined in the database.
Answer: B,E 7. In which situations does the Database Writer process (DBWn) write to data files?
(choose two). When a user process commits a transaction B. When the RMAN recovery process starts C.
When a tablespace is made read-only or taken offline D. When PMON cleans up dirty buffers in the database buffer cache E. When clean buffers for reading new blocks into the database buffer cache are not found easily Answer: A,D Explanation References IBM - With the rise of internet and the advent of knowledge age, mastering knowledge about computer is of great importance. Cisco - Once you pay for our study materials, our system will automatically send you an email which includes the installation packages.
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