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Passit4sure 1z0-060 - GRATIS EXAM · PDF filePassit4sure 1z0-060.150Q Number : 1z0-060 Passing Score : 800 Time Limit : 120 min File Version : 8.0 1z0-060

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    Passit4sure 1z0-060.150Q

    Number: 1z0-060Passing Score: 800Time Limit: 120 minFile Version: 8.0

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    1z0-060

    Upgrade to Oracle Database 12c

    i) These are the most accurate study questions. Just focus on these and sit in your exam.ii) Modified few questions, fixed few spelling mistakes and typos.iii) Excellent Questions, I pass with 90% with these questions. Guys just read this only.iv) I have corrected few questions and now score will be 95% above Guaranteed.v) This is the best VCE I ever made. Try guys and if any suggestion please update this.

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    Exam A

    QUESTION 1Your multitenant container (CDB) containing three pluggable databases (PDBs) is running in ARCHIVELOG mode. You find that the SYSAUX tablespace iscorrupted in the root container.

    The steps to recover the tablespace are as follows:1. Mount the CDB.2. Close all the PDBs.3. Open the database.4. Apply the archive redo logs.5. Restore the data file.6. Take the SYSAUX tablespace offline.7. Place the SYSAUX tablespace online.8. Open all the PDBs with RESETLOGS.9. Open the database with RESETLOGS.10. Execute the command SHUTDOWN ABORT.

    Which option identifies the correct sequence to recover the SYSAUX tablespace?

    A. 6, 5, 4, 7B. 10, 1, 2, 5, 8C. 10, 1, 2, 5, 4, 9, 8D. 10, 1, 5, 8, 10

    Correct Answer: ASection: (none)Explanation

    Explanation/Reference:RMAN> ALTER TABLESPACE sysaux OFFLINE IMMEDIATE;RMAN> RESTORE TABLESPACE sysaux;RMAN> RECOVER TABLESPACE sysaux;RMAN> ALTER TABLESPACE sysaux ONLINE;

    * Example:While evaluating the 12c beta3 I was not able to do the recover while testing all pdb files lost.Cannot close the pdb as the system datafile was missing...So only option to recover was:Shutdown cdb (10)startup mount; (1)

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    restore pluggable databaserecover pluggable databasealter database open;alter pluggable database name open;Oracle support says: You should be able to close the pdb and restore/recover the system tablespace of PDB.

    * Inconsistent backups are usually created by taking online database backups. You can also make an inconsistent backup by backing up data files while a databaseis closed, either:

    / Immediately after the crash of an Oracle instance (or, in an Oracle RAC configuration, all instances)/ After shutting down the database using SHUTDOWN ABORT

    Inconsistent backups are only useful if the database is in ARCHIVELOG mode and all archived redo logs created since the backup are available.

    * Open the database with the RESETLOGS option after finishing recovery:

    SQL> ALTER DATABASE OPEN RESETLOGS;

    QUESTION 2Which three are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled?

    A. Reduced logical I/OB. Reduced virtual memory utilizationC. Improved parallel Execution performanceD. Improved Serial Execution performanceE. Reduced physical I/OF. Reduced CPU utilization

    Correct Answer: BCFSection: (none)Explanation

    Explanation/Reference:* Multiprocess and Multithreaded Oracle Database Systems

    Multiprocess Oracle Database (also called multiuser Oracle Database) uses several processes to run different parts of the Oracle Database code and additionalOracle processes for the users-- either one process for each connected user or one or more processes shared by multiple users. Most databases are multiuserbecause a primary advantage of a database is managing data needed by multiple users simultaneously.

    Each process in a database instance performs a specific job. By dividing the work of the database and applications into several processes, multiple users andapplications can connect to an in- stance simultaneously while the system gives good performance.

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    * In previous releases, Oracle processes did not run as threads on UNIX and Linux systems. Starting in Oracle Database 12c, the multithreaded Oracle Databasemodel enables Oracle processes to execute as operating system threads in separate address spaces.

    QUESTION 3The tnsnames.ora file has an entry for the service alias ORCL as follows:

    The TNS ping command executes successfully when tested with ORCL; however, from the same OS user session, you are not able to connect to the databaseinstance with the following command:

    SQL > CONNECT scott/[email protected]

    What could be the reason for this?

    A. The listener is not running on the database node.B. The TNS_ADMIN environment variable is set to the wrong value.C. The orcl.oracle.com database service is not registered with the listener.D. The DEFAULT_DOMAIN parameter is set to the wrong value in the sqlnet.ora file.E. The listener is running on a different port.

    Correct Answer: CSection: (none)Explanation

    Explanation/Reference:Service registration enables the listener to determine whether a database service and its service handlers are available. A service handler is a dedicated serverprocess or dispatcher that acts as a connection point to a database. During registration, the LREG process provides the listener with the instance name, databaseservice names, and the type and addresses of service handlers. This information enables the listener to start a service handler when a client request arrives.

    QUESTION 4

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    Examine the following steps of privilege analysis for checking and revoking excessive, unused privileges granted to users:1. Create a policy to capture the privilege used by a user for privilege analysis.2. Generate a report with the data captured for a specified privilege capture.3. Start analyzing the data captured by the policy.4. Revoke the unused privileges.5. Compare the used and unused privileges` lists.6. Stop analyzing the data.

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    Identify the correct sequence of steps.

    A. 1, 3, 5, 6, 2, 4B. 1, 3, 6, 2, 5, 4C. 1, 3, 2, 5, 6, 4D. 1, 3, 2, 5, 6, 4E. 1, 3, 5, 2, 6, 4

    Correct Answer: BSection: (none)Explanation

    Explanation/Reference:1. Create a policy to capture the privilege used by a user for privilege analysis.3. Start analyzing the data captured by the policy.6. Stop analyzing the data.2. Generate a report with the data captured for a specified privilege capture.5. Compare the used and unused privileges` lists.4. Revoke the unused privileges.

    QUESTION 5Which statement is true concerning dropping a pluggable database (PDB)?

    A. The PDB must be open in read-only mode.B. The PDB must be in mount state.

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    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).

    Correct Answer: BSection: (none)Explanation

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

    QUESTION 6You notice a high number of waits for the db file scattered read and db file sequential read events in the recent Automatic Database Diagnostic Monitor (ADDM)report. After further investigation, you find that queries are performing too many full table scans and indexes are not being used even though the filter columns areindexed.

    Identify three possible reasons for this.

    A. Missing or stale histogram statisticsB. Undersized shared poolC. High clustering factor for the indexesD. High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameterE. Oversized buffer cache

    Correct Answer: ACDSection: (none)Explanation

    Explanation/Reference:D: DB_FILE_MULTIBLOCK_READ_COUNT is one of the parameters you can use to minimize I/O during table scans. It specifies the maximum number of blocksread in one I/O operation during a sequential scan. The total number of I/Os needed to perform a full table scan depends on such factors as the size of the table,the multiblock read count, and whether parallel execution is being utilized for the operation.

    QUESTION 7Which three features work together, to allow a SQL statement to have different cursors for the same statement based on different selectivity ranges?

    A. Bind Variable PeekingB. SQL Plan BaselinesC. Adaptive Cursor Sharing

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    D. Bind variable used in a SQL statementE. Literals in a SQL statement

    Correct Answer: ACESection: (none)Explanation

    Explanation/Reference:* In bind variable peeking (also known as bind peeking), the optimizer looks at the value in a bind variable when the database performs a hard parse of a statement.

    When a query uses literals, the optimizer can use the literal values to find the best plan. However, when a query uses bind variables, the optimizer must select thebest plan without the presence of literals in the SQL text. This task can be extremely difficult. By peeking at bind values the optimizer can determine the selectivity ofa WHERE clause condition as if literals had been used, thereby improving the plan.

    C: Oracle 11g/12g uses Adaptive Cursor Sharing to solve this problem by allowing the server to compare the effectiveness of execution plans between executionswith different bind variable values. If it notices suboptimal plans, it allows certain bind variable values, or ranges of values, to use alternate execution plans for thesame statement. This functionality requires no additional configuration.

    QUESTION 8You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.

    Which method or feature should you use?

    A. Compare Period ADDM reportB. AWR Compare Period reportC. Active Session History (ASH) reportD. Taking a new snapshot and comparing it with a preserved snapshot

    Cor