[2023] Valid 1z0-062 test answers & Oracle 1z0-062 exam pdf [Q74-Q98]

Posted On February 18, 2023

[2023] Valid 1z0-062 test answers & Oracle 1z0-062 exam pdf

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Details for 1Z0-062

Particularly, 1Z0-062 certification test contains a total of about 67 multiple-choice questions that the students have to complete within 2 hours. If you want to pass this exam, you should try to get more than 64% of the correct answers. This Oracle test will cost you $245 and to ace it with flying colors, you should explore its topics first. Thus, here are a few of them:

Oracle database software upgrade;
Oracle database architecture and management tools;
Oracle network environment configuration;
Database storage structures and undo data management;

The procedure of earning this associate-level Oracle Database certificate expands by all odds the boundaries of candidates’ knowledge and applied experience, allowing them to accomplish complicated practical lab tasks on the final test, and then in practice on a daily basis. Meanwhile, Oracle certification tests reveal your potential and measure as well as challenge your capability to reason and act through real questions based on varied scenarios.

Oracle 1z0-062 Exam Syllabus Topics:

Topic	Details
Topic 1	Reclaim wasted space from tables and indexes by using the segment shrink functionality Use Oracle Scheduler to simplify management tasks
Topic 2	View the alert log and access dynamic performance views Generate database creation scripts by using DBCA
Topic 3	Navigate with My Services Dashboard Use database management tools Oracle Database Instance
Topic 4	Describe the locking mechanism and how Oracle manages data concurrency Oracle Database Management Tools
Topic 5	Configure communication between databases Explain the memory structures
Topic 6	Start up and shut down an Oracle database instance Configuring the Oracle Network Environment
Topic 7	Explain the general architecture of Oracle Data Pump List the architectural components of Oracle Database
Topic 8	Use job chains to perform a series of related tasks Use Data Pump Export and Import to move data between Oracle databases

NO.74 Which three statements are true about the working of system privileges in a multitenant control database
(CDB) that has pluggable databases (PDBs)? (Choose three.)

System privileges apply only to the PDB in which they are used.

Local users cannot use local system privileges on the schema of a common user.

The granter of system privileges must possess the set container privilege.

Common users connected to a PDB can exercise privileges across other PDBs.

System privileges with the with grant option container all clause must be granted to a common user
before the common user can grant privileges to other users.

NO.75 DEFERRED_SEGMENT_CREATION is TRUE in one of your databases.
You execute this command:

Which three statements are true immediately after this statement executes successfully?

A database object is created.

No database segment is created.

The table and column definitions are stored in the data dictionary.

No table definition is stored in the data dictionary.

No column definitions are stored in the data dictionary.

No object definition is stored in the data dictionary.

NO.76 Your database is configured in ARCHIVELOGmode, and a daily full database backup is taken by using
RMAN. Control file autobackup is configured.
Loss of which three database files can lead to an incomplete recovery? (Choose three.)

inactive online redo log file group

a data file belonging to the default temporary tablespace

a data file belonging to the SYSAUXtablespace

server parameter ﬁle (SPFILE)

active online redo log ﬁle group

all the control flies

NO.77 An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache.
How would you guarantee that the blocks for the table never age out?

Configure the KEEP buffer pool and alter the table with the corresponding storage clause.

Increase the database buffer cache size.

Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.

Configure Automata Shared Memory Management.

Configure Automatic Memory Management.

NO.78 You are connected using SQL* Plus to a multitenant container database (CDB) with SYSDBA privileges and execute the following sequence statements:

What is the result of the last SET CONTAINER statement and why is it so?

It succeeds because the PDB_ADMIN user has the required privileges.

It fails because common users are unable to use the SET CONTAINER statement.

It fails because local users are unable to use the SET CONTAINER statement.

If fails because the SET CONTAINER statement cannot be used with PDB$SEED as the target pluggable database (PDB).

NO.79 Identify three benefits of Unified Auditing. (Choose three.)

Decreased use of storage to store audit trail rows in the database.

It improves overall auditing performance.

It guarantees zero-loss auditing.

The audit trail cannot be easily modified because it is read-only.

It automatically audits Recovery Manager (RMAN) events.

A: Starting with 12c, Oracle has unified all of the auditing types into one single unit called Unified auditing. You don’t have to turn on or off all of the different auidting types individually and as a matter of fact auditing is enabled by default right out of the box. The AUD$ and FGA$ tables have been replaced with one single audit trail table. All of the audit data is now stored in Secure Files table thus improving the overall management aspects of audit data itself.
B: Further the audit data can also be buffered solving most of the common performance related problems seen on busy environments.
E: Unified Auditing is able to collect audit data for Fine Grained Audit, RMAN, Data Pump, Label Security, Database Vault and Real Application Security operations.
Note:
* Benefits of the Unified Audit Trail
The benefits of a unified audit trail are many:
/ (B) Overall auditing performance is greatly improved. The default mode that unified audit works is Queued Write mode. In this mode, the audit records are batched in SGA queue and is persisted in a periodic way.
Because the audit records are written to SGA queue, there is a significant performance improvement.
/ The unified auditing functionality is always enabled and does not depend on the initialization parameters that were used in previous releases
/ (A) The audit records, including records from the SYS audit trail, for all the audited components of your Oracle Database installation are placed in one location and in one format, rather than your having to look in different places to find audit trails in varying formats. This consolidated view enables auditors to co-relate audit information from different components. For example, if an error occurred during an INSERT statement, standard auditing can indicate the error number and the SQL that was executed. Oracle Database Vault- specific information can indicate whether this error happened because of a command rule violation or realm violation. Note that there will be two audit records with a distinct AUDIT_TYPE. With this unification in place, SYS audit records appear with AUDIT_TYPE set to Standard Audit.
/ The management and security of the audit trail is also improved by having it in single audit trail.
/ You can create named audit policies that enable you to audit the supported components listed at the beginning of this section, as well as SYS administrative users. Furthermore, you can build conditions and exclusions into your policies.
* Oracle Database 12c Unified Auditing enables selective and effective auditing inside the Oracle database using policies and conditions. The new policy based syntax simplifies management of auditing within the database and provides the ability to accelerate auditing based on conditions.
* The new architecture unifies the existing audit trails into a single audit trail, enabling simplified management and increasing the security of audit data generated by the database.

NO.80 You set the following parameters in the parameter file and restart the database instance:

Which two statements are true?

The MEMORY_MAX_TARGETparameter is automatically set to 500 MB.

The PGA_AGGREGATE_TARGETand SGA_TARGETparameters are automatically set to zero.

The value of the MEMORY_MAX_TARGETparameter remains zero for the database instance.

The lower limits of the PGA_AGGREGATE_TARGETand SGA_TARGETparameters are set to 90 MB and
270 MB respectively.

The instance does not start up because Automatic Memory Management (AMM) is enabled but PGA_AGGREGATE_TARGETand SGA_TARGETparameters are set to nonzero values.

NO.81 You have successfully taken a database backup by using the command:
RMAN> BACKUP AS BACKUPSET DATABASE;
Now you execute this command:
RMAN> BACKUP INCREMENTAL LEVEL 1 DATABASE;
What is the outcome?

It fails because an incremental level 1 backup always searches for an image copy as level 0 backup.

It fails because an incremental level 0 backup does not exist.

It takes a backup of blocks that have been formatted since the last full database backup.

It takes an incremental level 0 backup of the database.

It first takes an incremental level0 backup and then an incremental level 1 backup.

NO.82 Your multitenant container database (CDB) contains pluggable databases (PDBs), you are connected to
the HR_PDB. You execute the following command:
SQL > CREATE UNDO TABLESPACE undotb01
DATAFILE ‘u01/oracle/rddb1/undotbs01.dbf’ SIZE 60M AUTOEXTEND ON;
What is the result?

It executes successfully and creates an UNDO tablespace in HR_PDB.

It falls and reports an error because there can be only one undo tablespace in a CDB.

It fails and reports an error because the CONTAINER=ALL clause is not specified in the command.

It fails and reports an error because the CONTAINER=CURRENT clause is not specified in the
command.

It executes successfully but neither tablespace nor the data file is created.

NO.83 What should you do to ensure that a job stores minimal job metadata and runtime data on disk, and uses only existing PL/SQL programs?

Create an event-based job.

Create a lightweight job.

Specify the job as a member of a job class.

Use a job array.

NO.84 Examine these two statements:

Which three are true about the MRKT tablespace? (Choose three.)

The MRKT tablespace is created as a small file tablespace, because the file size is less than the minimum required for big file files.

The MRKT tablespace may be dropped if it has no contents.

Users who were using the old default tablespace will have their default tablespaces changed to the MRKT tablespace.

No more data files can be added to the tablespace.

The relative file number of the tablespace is not stored in rowids for the table rows that are stored in the MRKT tablespace.

NO.85 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?

Decreasing PCTUSED

Decreasing PCTFREE

Increasing the number of DBWN process

Using Automatic Segment Space Management (ASSM)

Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation

NO.86 Which two partitioned table maintenance operations support asynchronous Global Index Maintenance in Oracle database 12c? (Choose two.)

ALTER TABLE SPLIT PARTITION

ALTER TABLE MERGE PARTITION

ALTER TABLE TRUNCATE PARTITION

ALTER TABLE ADD PARTITION

ALTER TABLE DROP PARTITION

ALTER TABLE MOVE PARTITION

NO.87 You want to upgrade an Oracle Database running Oracle Database 11g to Oracle
Database 12c.
Which three tasks should be performed before a manual upgrade?

runningpreupgrad.sqlin Oracle Database 11g to generate fix-up scripts and a log file

runningutlu121s.sqlfrom the new Oracle home to display information about therequired initialization parameters

copying the initialization parameter file to the new Oracle home

copying the password file to the new Oracle home

copying net configuration files to the new Oracle home

NO.88 Your database is running in NOARCHIVLOG mode.
Examine the following parameters:

You execute the following command after performing a STARTUP MOUNT:
SQL> ALTER DATABASE ARCHIVELOG;
Which statement is true about the execution of the command?

It executes successfully and sets the Fast Recovery Area as the local archive destination.

It executes successfully and issues a warning to set LOG_ARCHIVE_DEST while opening the database.

It fails and returns an error about LOG_ARCHIVE_DEST not being set.

It executes successfully and sets $ORACLE_HOME/dbs as the default archive destination.

NO.89 Examine this parameter:

Now examine this statement which executes successfully in an Oracle Database version 12c or later.
CREATE TABLESPACE data_olap;
Which two are true about this tablespace and its attributes? (Choose two.)

The datafile that is created is not auto extensible.

The tablespace is a dictionary managed tablespace.

The datafile has an Oracle generated name.

The tablespace is created with manual segment space management.

The initial datafile size is 100MB.

NO.90 Examine the contents of SQL loader control file:

Which three statements are true regarding the SQL* Loader operation performed using the control file?

An EMP table is created if a table does not exist. Otherwise, if the EMP table is appended with the loaded data.

The SQL* Loader data file myfile1.dat has the column names for the EMP table.

The SQL* Loader operation fails because no record terminators are specified.

Field names should be the first line in the both the SQL* Loader data files.

The SQL* Loader operation assumes that the file must be a stream record format file with the normal carriage return string as the record terminator.

NO.91 You are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table’s indexes, to another tablespace.
The table does not have a primary key and is used by an OLTP application.
Which technique will move the table and indexes while maintaining the highest level of availability to the application?

Oracle Data Pump.

An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move the indexes.

An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes.

Online Table Redefinition.

Edition-Based Table Redefinition.

NO.92 What can be automatically implemented after the SQL Tuning Advisor is run as part of the Automated Maintenance Task?

statistics recommendations

SQL profile recommendations

SQL statement restructure recommendations

creation of materialized views to improve query performance

NO.93 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?

It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root
only.

It fails and reports an error because the CONTAINER=ALL clause is not used.

It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and
all PDBs.

It fails and reports an error because the CONTAINER=CURRENT clause is not used.

It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in all
PDBs.

NO.94 What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archiving enabled?

It fails with the ORA-665610 Invalid DDL statement on history-tracked message

The rows in the table are truncated without being archived.

The rows in the table are archived, and then truncated.

The rows in both the table and the archive are truncated.

NO.95 In your multitenant container database (CDB) containing same pluggable databases (PDBs), you execute the following commands in the root container:

Which two statements are true? (Choose two.)

The C # # ROLE1 role is created in the root database and all the PDBs.

The C # # ROLE1 role is created only in the root database because the container clause is not used.

Privileges are granted to the C##A_ADMIN user only in the root database.

Privileges are granted to the C##A_ADMIN user in the root database and all PDBs.

The statement for granting a role to a user fails because the CONTAINER clause is not used.

NO.96 In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer.
Which statement is true?

The CDB must be open.

The CDB must be in the mount stage.

The CDB must be in the nomount stage.

Alt existing PDBs must be closed.

NO.97 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:
i. Long-running queries are not affected.
ii. No extra space is used.
iii. Data manipulation language (DML) operations on the table succeed at all times throughout the process.
iv. Unused space is reclaimed both above and below the high water mark.
Which ALTER TABLE option would you recommend?

DEALLOCATE UNUSED

SHRINK SPACE CASCADE

SHRINK SPACE COMPACT

ROW STORE COMPRESS BASIC

NO.98 Your multitenant container (CDB) contains two pluggable databases (PDB), HR_PDB and ACCOUNTS_PDB, both of which use the CDB tablespace. The temp file is called temp01.tmp.
A user issues a query on a table on one of the PDBs and receives the following error:
ERROR at line 1:
ORA-01565: error in identifying file ‘/u01/app/oracle/oradata/CDB1/temp01.tmp’ ORA-27037: unable to obtain file status
Identify two ways to rectify the error.

Add a new temp file to the temporary tablespace and drop the temp file that that produced the error.

Shut down the database instance, restore the temp01.tmp file from the backup, and then restart the database.

Take the temporary tablespace offline, recover the missing temp file by applying redo logs, and then bring the temporary tablespace online.

Shutdown the database instance, restore and recover the temp file from the backup, and then open the database with RESETLOGS.

Shut down the database instance and then restart the CDB and PDBs.

Conclusion

In summary, it should be recalled that Oracle Database 12c designations accentuate the full set of skills required to work with the DBMS for daily operational management and maintenance. Currently, in the competitive market, it is common practice to validate your skills and experience through certification by nailing the corresponding exam. So, successfully passing the Oracle Database 12c Administration 1Z0-062 test will not only be a shining point on your CV but will also open new doors for you on your path to mastering the Oracle Database environment. All you have to do is make a firm decision, register for the actual exam, and start preparing. You have all the power here!

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