It is impossible to pass Oracle 1Z0-062 exam without any help in the short term. Come to us soon and find the most advanced, correct and guaranteed oracle database 12c installation and administration 1z0 062 pdf. You will get a surprising result by our oracle database 12c installation and administration 1z0 062 pdf.

Free demo questions for Oracle 1Z0-062 Exam Dumps Below:

NEW QUESTION 1
Which two statements are true concerning dropping a pluggable database (PDB)? (Choose two.)

  • A. The PDB must be open in read-only mode.
  • B. The PDB must be in mount state.
  • C. The PDB must be unplugged.
  • D. The PDB data files are always removed from disk.
  • E. A dropped PDB can never be plugged back into a multitenant container database (CDB).

Answer: BC

Explanation: References: http://docs.oracle.com/database/121/ADMIN/cdb_plug.htm#ADMIN13658

NEW QUESTION 2
Examine this command:
SQL > exec DBMS_STATS.SET_TABLE_PREFS (‘SH’, ‘CUSTOMERS’, ‘PUBLISH’, ‘false’);
Which three statements are true about the effect of this command? (Choose three.)

  • A. Statistics collection is not done for the CUSTOMERS table when schema stats are gathered.
  • B. Statistics collection is not done for the CUSTOMERS table when database stats are gathered.
  • C. Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time.
  • D. Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics.
  • E. Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.

Answer: CDE

Explanation: * SET_TABLE_PREFS Procedure
This procedure is used to set the statistics preferences of the specified table in the specified schema.
* Example:
Using Pending Statistics
Assume many modifications have been made to the employees table since the last time statistics were gathered. To ensure that the cost-based optimizer is still picking the best plan, statistics should be gathered once again; however, the user is concerned that new statistics will cause the optimizer to choose bad plans when the current ones are acceptable. The user can do the following:
EXECDBMS_STATS.SET_TABLE_PREFS('hr', 'employees', 'PUBLISH', 'false');
By setting the employees tables publish preference to FALSE, any statistics gather from now on will not be automatically published. The newly gathered statistics will be marked as pending.

NEW QUESTION 3
Which three statements are true about SQL plan directives? (Choose three.)

  • A. They are tied to a specific statement or SQL ID.
  • B. They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.
  • C. They are used to gather only missing statistics.
  • D. They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.
  • E. They instruct the optimizer to create only column group statistics.
  • F. Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespac

Answer: BDF

NEW QUESTION 4
You plan to install the Oracle Database 12c software on a new server. The database will use Automatic Storage Management (ASM) and Oracle Restart. Oracle Grid Infrastructure for a standalone server is already installed on the server.
You want to configure job role separation. You create the following operating system users and groups:
- The user oracle as the owner of the Oracle database installation
- The user grid as the owner of Oracle Grid Infrastructure
- The group oinstall as an Oracle Inventory group
- The group dba as the OSDBA group for Oracle database
- The group asmdba as the OSDBA group for Oracle ASM
- The group asmadmin as the administration privileges group for Oracle ASM
- The group asmoper as the group for Oracle ASM
Which two additional tasks should you perform with regard to the OS-level owners and groups? (Choose two.)

  • A. creating a separate central inventory group for the Oracle Database 12c installation
  • B. assigning oinstall as the primary group for the oracle user
  • C. assigning asmadmin and asmoper as primary groups for the oracle user
  • D. creating OS groups associated with the OSBACKUPDBA, OSDGDBA, and OSKMDBA system privileges
  • E. assigning asmdba as the secondary group for the oracle user

Answer: BD

NEW QUESTION 5
In your multitenant container database (CDB) containing pluggable database (PDBs), you granted the CREATE TABLE privilege to the common user C # # A_ADMIN in root and all PDBs.
You execute the following command from the root container: SQL > REVOKE create table FROM C # # A_ADMIN; What is the result?

  • A. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root only.
  • B. It fails and reports an error because the CONTAINER=ALL clause is not used.
  • C. It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and all PDBs.
  • D. It fails and reports an error because the CONTAINER=CURRENT clause is not used.
  • E. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in all PDBs.

Answer: A

Explanation: REVOKE ..FROM
If the current container is the root:
/ Specify CONTAINER = CURRENT to revoke a locally granted system privilege, object privilege, or role from a common user or common role. The privilege or role is revoked from the user or role only in the root. This clause does not revoke privileges granted with CONTAINER = ALL.
/ Specify CONTAINER = ALL to revoke a commonly granted system privilege, object privilege on a common object, or role from a common user or common role. The privilege or role is revoked from the user or role across the entire CDB. This clause can revoke only a privilege or role granted with CONTAINER = ALL from the specified common user or common role. This clause does not revoke privileges granted locally with CONTAINER = CURRENT. However, any locally granted privileges that depend on the commonly granted privilege being revoked are also revoked.
If you omit this clause, then CONTAINER = CURRENT is the default. References:

NEW QUESTION 6
Which two statements are true when row archival management is enabled? (Choose two.)

  • A. The ORA_ARCHIVE_STATE column visibility is controlled by the ROW ARCHIVAL VISIBILITY session parameter.
  • B. The ORA_ARCHIVE_STATE column is updated manually or by a program that could reference activity tracking columns, to indicate that a row is no longer considered active.
  • C. The ROW ARCHIVAL VISIBILITY session parameter defaults to active rows only.
  • D. The ORA_ARCHIVE_STATE column is visible if referenced in the select list of a query.
  • E. The ORA_ARCHIVE_STATE column is updated automatically by the Oracle Server based on activity tracking columns, to Indicate that a row is no longer considered active.

Answer: CD

NEW QUESTION 7
You create a new pluggable database, HR_PDB, from the seed database. Which three tablespaces are created by default in HR_PDB? (Choose three.)

  • A. SYSTEM
  • B. SYSAUX
  • C. EXAMPLE
  • D. UNDO
  • E. TEMP
  • F. USERS

Answer: ABE

Explanation: * A PDB would have its SYSTEM, SYSAUX, TEMP tablespaces.It can also contains other user created tablespaces in it.
* Oracle Database creates both the SYSTEM and SYSAUX tablespaces as part of every database.
* tablespace_datafile_clauses
Use these clauses to specify attributes for all data files comprising the SYSTEM and SYSAUX tablespaces in the seed PDB.
Incorrect:
Not D: a PDB can not have an undo tablespace. Instead, it uses the undo tablespace belonging to the CDB. Note:
* Example:
CONN pdb_admin@pdb1
SELECT tablespace_name FROM dba_tablespaces; TABLESPACE_NAME
------------------------------ SYSTEM
SYSAUX TEMP USERS SQL>

NEW QUESTION 8
Examine the following steps:
ADBA grants the CREATE TABLE system privilege with ADMIN OPTION to the user SIDNEY. SIDNEY grants the CREATE TABLE system privilege to the HR user.
Which statement is true?

  • A. SIDNEY can revoke the CREATE TABLE system privilege only from HR, to whom he granted it.
  • B. HR can grant the CREATE TABLE system privilege to other users.
  • C. Neither SIDNEY nor HR can create new tables if the DBA revokes the CREATE TABLE privilege from SIDNEY.
  • D. HR still retains the CREATE TABLE system privilege if the DBA revokes the CREATE TABLE privilege from SIDNEY.

Answer: D

Explanation: References:
http://www.dba-oracle.com/t_with_grant_admin_privileges.htm

NEW QUESTION 9
You wish to enable an audit policy for all database users, except SYS, SYSTEM, and SCOTT. You issue the following statements:
SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYS; SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYSTEM; SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SCOTT;
For which database users is the audit policy now active?

  • A. All users except SYS
  • B. All users except SCOTT
  • C. All users except sys and SCOTT
  • D. All users except sys, system, and SCOTT

Answer: B

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 ORA_DATABASE_PARAMETER 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 all_actions_on_hr_emp_pol
ACTIONS ALL ON HR.EMPLOYEES;
AUDIT POLICY all_actions_on_hr_emp_pol EXCEPT pmulligan; References:

NEW QUESTION 10
You want to create a database with a block size other than the default 8 kilobytes (KB) by using the Database Configuration Assistant (DBCA).
Which option should you use?

  • A. Automatic Storage Management (ASM) for storage of data files
  • B. a file system for storage of data files
  • C. a Data Warehouse database template
  • D. a custom database template

Answer: D

NEW QUESTION 11
Which two tasks can be performed on an external table? (Choose two.)

  • A. partitioning the table
  • B. creating an invisible index
  • C. updating the table by using an UPDATE statement
  • D. creating a public synonym
  • E. creating a view

Answer: DE

Explanation: http://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm#ADMIN01507
You can, for example select, join, or sort external table data. You can also create views and synonyms for external tables. However, no DML operations (UPDATE, INSERT, or DELETE) are possible, and no indexes can be created, on external tables.

NEW QUESTION 12
You want to reduce fragmentation and reclaim unused space for the SALES table but not its dependent objects. During this operation, you want to ensure the following:

  • A. Long-running queries are not affected.i
  • B. No extra space is used.ii
  • C. Data manipulation language (DML) operations on the table succeed at all times throughout the process.i
  • D. Unused space is reclaimed both above and below the high water mar
  • E. Which ALTER TABLE option would you recommend?
  • F. DEALLOCATE UNUSED
  • G. SHRINK SPACE CASCADE
  • H. SHRINK SPACE COMPACT
  • I. ROW STORE COMPRESS BASIC

Answer: C

Explanation: References: https://docs.oracle.com/cd/B28359_01/server.111/b28310/schema003.htm

NEW QUESTION 13
Which two statements are true concerning the Resource Manager plans for individual pluggable databases (PDB plans) in a multitenant container database (CDB)? (Choose two.)

  • A. If no PDB plan is enabled for a pluggable database, then all sessions for that PDB are treated to an equal degree of the resource share of that PDB.
  • B. In a PDB plan, subplans may be used with up to eight consumer groups.
  • C. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the CDB.
  • D. If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.
  • E. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based on the shares provided to the PDB in the CDB plan and the shares provided to the consumer groups in the PDB plan.

Answer: AE

Explanation: A: Setting a PDB resource plan is optional. If not specified, all sessions within the PDB are treated equally.
*
In a non-CDB database, workloads within a database are managed with resource plans.
In a PDB, workloads are also managed with resource plans, also called PDB resource plans. The functionality is similar except for the following differences:
/ Non-CDBDatabase Multi-level resource plans Up to 32 consumer groups Subplans
/ PDBDatabase
Single-level resource plans only Up to 8 consumer groups
(not B) No subplans

NEW QUESTION 14
Your database is configured in ARCHIVELOG mode, and daily full database backups are taken. RMAN is configured to perform control file autobackups.
Which statement is true about the loss of a duplexed control file?

  • A. The database remains open but transactions are not permitted.
  • B. The database instance aborts, and media recovery is required after restoration of the control file to open the database.
  • C. The database instance remains open and the control file can be restored without shutting down the database.
  • D. The database instance aborts and a control file restore operation does not require media recover

Answer: C

NEW QUESTION 15
After implementing full Oracle Data Redaction, you change the default value for the NUMBER data type as follows:
1Z0-062 dumps exhibit
After changing the value, you notice that FULL redaction continues to redact numeric data with zero. What must you do to activate the new default value for numeric full redaction?

  • A. Re-enable redaction policies that use FULL data redaction.
  • B. Re-create redaction policies that use FULL data redaction.
  • C. Re-connect the sessions that access objects with redaction policies defined on them.
  • D. Flush the shared pool.
  • E. Restart the database instance.

Answer: E

Explanation: About Altering the Default Full Data Redaction Value
You can alter the default displayed values for full Data Redaction polices. By default, 0 is the redacted value when Oracle Database performs full redaction (DBMS_REDACT.FULL) on a column of the NUMBER data type. If you want to change it to another value (for example, 7), then you can run the DBMS_REDACT.UPDATE_FULL_REDACTION_VALUES procedure to modify this value. The modification applies to all of the Data Redaction policies in the current database instance. After you modify a value, you must restart the database for it to take effect.
Note:
* The DBMS_REDACT package provides an interface to Oracle Data Redaction, which enables you to mask (redact) data that is returned from queries issued by low-privileged users or an application.
* UPDATE_FULL_REDACTION_VALUES Procedure
This procedure modifies the default displayed values for a Data Redaction policy for full redaction.
* After you create the Data Redaction policy, it is automatically enabled and ready to redact data.
* Oracle Data Redaction enables you to mask (redact) data that is returned from queries issued by
low-privileged users or applications. You can redact column data by using one of the following methods:
/ Full redaction.
/ Partial redaction.
/ Regular expressions.
/ Random redaction.
/ No redaction.

NEW QUESTION 16
In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments.
On further investigation, you find that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?

  • A. Decreasing PCTUSED
  • B. Decreasing PCTFREE
  • C. Increasing the number of DBWN process
  • D. Using Automatic Segment Space Management (ASSM)
  • E. Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation

Answer: D

Explanation: * Automatic segment space management (ASSM) is a simpler and more efficient way of managing space within a segment. It completely eliminates any need to specify and tune the pctused,freelists, and freelist groups storage parameters for schema objects created in the tablespace. If any of these attributes are specified, they are ignored.
* Oracle introduced Automatic Segment Storage Management (ASSM) as a replacement for traditional freelists management which used one-way linked-lists to manage free blocks with tables and indexes. ASSM
is commonly called "bitmap freelists" because that is how Oracle implement the internal data structures for free block management.
Note:
* Buffer busy waits are most commonly associated with segment header contention onside the data buffer pool (db_cache_size, etc.).
* The most common remedies for high buffer busy waits include database writer (DBWR) contention tuning, adding freelists (or ASSM), and adding missing indexes.

NEW QUESTION 17
Your database supports a DSS workload that involves the execution of complex queries: Currently, the library cache contains the ideal workload for analysis. You want to analyze some of the queries for an application that are cached in the library cache.
What must you do to receive recommendations about the efficient use of indexes and materialized views to improve query performance?

  • A. Create a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.
  • B. Run the Automatic Workload Repository Monitor (ADDM).
  • C. Create an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.
  • D. Create an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.

Answer: D

Explanation: * SQL Access Advisor is primarily responsible for making schema modification recommendations, such as adding or dropping indexes and materialized views. SQL Tuning Advisor makes other types of recommendations, such as creating SQL profiles and restructuring SQL statements.
* The query optimizer can also help you tune SQL statements. By using SQL Tuning Advisor and SQL
Access Advisor, you can invoke the query optimizer in advisory mode to examine a SQL statement or set of statements and determine how to improve their efficiency. SQL Tuning Advisor and SQL Access Advisor can make various recommendations, such as creating SQL profiles, restructuring SQL statements, creating additional indexes or materialized views, and refreshing optimizer statistics.
Note:
* Decision support system (DSS) workload
* The library cache is a shared pool memory structure that stores executable SQL and PL/SQL code. This cache contains the shared SQL and PL/SQL areas and control structures such as locks and library cache handles.

NEW QUESTION 18
You executed this command to create a password file: $ orapwd file = orapworcl entries = 10 ignorecase = N Which two statements are true about the password file? (Choose two.)

  • A. It will permit the use of uppercase passwords for database users who have been granted the SYSOPER role.
  • B. It contains username and passwords of database users who are members of the OSOPER operating system group.
  • C. It contains usernames and passwords of database users who are members of the OSDBA operating system group.
  • D. It will permit the use of lowercase passwords for database users who have granted the SYSDBA role.
  • E. It will not permit the use of mixed case passwords for the database users who have been granted the SYSDBA role.

Answer: AD

Explanation: * You can create a password file using the password file creation utility, ORAPWD.
* Adding Users to a Password File
When you grant SYSDBA or SYSOPER privileges to a user, that user's name and privilege information are added to the password file. If the server does not have an EXCLUSIVE password file (that is, if the initialization parameter REMOTE_LOGIN_PASSWORDFILE is NONE or SHARED, or the password file is missing), Oracle Database issues an error if you attempt to grant these privileges.
A user's name remains in the password file only as long as that user has at least one of these two privileges. If you revoke both of these privileges, Oracle Database removes the user from the password file.
* The syntax of the ORAPWD command is as follows: ORAPWDFILE=filename [ENTRIES=numusers] [FORCE={Y|N}] [IGNORECASE={Y|N}] [NOSYSDBA={Y|N}]
* IGNORECASE
If this argument is set to y, passwords are case-insensitive. That is, case is ignored when comparing the password that the user supplies during login with the password in the password file.

NEW QUESTION 19
Which three statements are true about server-generated alerts? (Choose three.)

  • A. Server-generated alerts notify administrators of problems that cannot be resolved automatically.
  • B. Alerts are not issued for locally managed read-only tablespaces.
  • C. Response actions cannot be specified for server-generated alerts.
  • D. Stateful alerts can be queried only from the DBA_ALERT_HISTORY view.
  • E. When an alert is cleared, it is moved to the DBA_ALERT_HISTORY view.

Answer: ABE

Explanation: References https://docs.oracle.com/cd/B28359_01/server.111/b28310/schema001.htm#ADMIN10120

Recommend!! Get the Full 1Z0-062 dumps in VCE and PDF From Certleader, Welcome to Download: https://www.certleader.com/1Z0-062-dumps.html (New 362 Q&As Version)