Real 1z0-062 Exam PDF Test Engine Practice Test Questions
Oracle 1z0-062 Real 2022 Braindumps Mock Exam Dumps
Those candidates who are used to referring themselves to self-study and have enough time & motivation in reserve can utilize such study guides and books from the Amazon website:
- For those wishing to begin efficient preparation for 1Z0-062, you should take a look at ‘OCA: Oracle Database 12c Administrator Certified Associate Study Guide: Exams 1Z0-061 and 1Z0-062 1st Edition’ written by an industry expert with hands-on Oracle database experience, Biju Thomas. With an extensive set of study tools, including flashcards, summary questions for each chapter, assessment tests, as well as practical labs, you will not only have a comprehensive resource for preparation but will also discover the world of day-to-day work as a database administrator. As a result, you will have honed the skills required for certification, such as restricting and sorting data, creating an Oracle Database, administering user security, and more. You can find this guide on Amazon in both Kindle and paperback versions, and in exchange, you get a convenient preparation source, including real-world scenarios, hands-on exercises, and access to exam prep software.
- ‘OCA Oracle Database 12c Installation and Administration Exam Guide (Exam 1Z0-062)’ by John Watson is an exclusive Oracle Press manual that covers all of the associate-level objectives to prepare for 1Z0-062. Its author, John Watson, as an OCP-level database administrator, will show readers how to install and upgrade Oracle Database software, how to manage Oracle instances alongside database storage structures, and how to implement Oracle Database auditing. Furthermore, upon completion of this book, you will demonstrate expertise in automating tasks, data movement, and installing Oracle Grid infrastructure for a standalone server. What is peculiar about this manual is that each chapter of this resource includes realistic exercises, two-minute drills for every topic, and self-check tests so you can observe the results of your work. This guide is available in Kindle and Paperback versions for anyone interested. However, it should be noted that the electronic version of the book provides access to more than 185 practice exam questions, as well as a test engine so that you will not only get a valuable source of information for quality preparation for your forthcoming 1Z0-062 exam, but also a handy reference for further use in the workplace.
As you can see, there are more than enough ways for comprehensive and productive revision. Thus, each candidate can choose the preparation tool that suits his or her learning style.
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:
- Concepts of recovery and backup;
- User security administration;
- Oracle network environment configuration;
- Oracle database architecture and management tools;
- Developing and managing tablespaces;
- Database storage structures and undo data management;
- Introduction to DBAAS.
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.
NEW QUESTION 149
You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB) as a
pluggable database (PDB).
The characteristics of the non-CDB are as follows:
- Version: Oracle Database 12c Releases 1 64-bit
- Character set: WE8ISO8859P15
- National character set: AL16UTF16
- O/S: Oracle Linux6 64-bit
The characteristics of the CDB are as follows:
- Version: Oracle Database 12c Release 1 64-bit
- Character set: AL32UTF8
- O/S: Oracle Linux 6 64-bit
Which technique should you use to minimize down time while plugging this non-CDB into the CDB?
- A. RMAN
- B. Data Pump full export / import
- C. Transportable database
- D. The DBMS_PDB package
- E. Transportable tablespace
Answer: B
NEW QUESTION 150
Your database instance is started with a PFILE.
You want to increase the size of the buffer cache. Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;
Which is the outcome?
- A. Change is applied to the current instance, but does not persist after instance restart.
- B. The value is changed for the current instance and in the PFILE.
- C. The value is changed only in the PFILE and takes effect at the next instance startup.
- D. It fails because the SCOPE clause is missing.
Answer: A
NEW QUESTION 151
Examine the query and its output executed In an RDBMS Instance:
Which three statements are true about the users (other than sys) in the output? (Choose three.)
- A. The C # # C_ADMIN user can perform the data guard operation with Data Guard Broker.
- B. The C # # B_ADMIN user can perform all backup and recovery operations using RMAN or SQL* Plus.
- C. The C # # A_ADMIN user can perform wallet operations.
- D. The C # # B_ADMIN user can perform all backup and recovery operations using RMAN only.
- E. The C # # D_ADMIN user can perform backup and recovery operations for Automatic Storage Management (ASM).
Answer: A,B,E
Explanation:
Explanation/Reference:
Explanation:
B: SYSDG administrative privilege has ability to perform Data Guard operations (including startup and shutdown) using Data Guard Broker or dgmgrl.
D: SYSASM
The new (introduced in 11g) SYSASM role to manage the ASM instance, variable extent sizes to reduce shared pool usage, and the ability of an instance to read from a specific disk of a diskgroup E (Not A): SYSDBA is like a role in the sense that it is granted, but SYSDBA is a special built-in privilege to allow the DBA full control over the database Incorrect:
Not C: SYSKM. SYSKM administrative privilege has ability to perform transparent data encryption wallet operations.
Note:
Use the V$PWFILE_USERS view to see the users who have been granted administrative privileges.
NEW QUESTION 152
Oracle Grid Infrastructure for a stand-alone server is installed on your production host before installing the Oracle Database server. The database and listener are configured by using Oracle Restart.
Examine the following command and its output:
$ crsctl config has CRS-4622: Oracle High Availability Services auto start is enabled.
What does this imply?
- A. When you start an instance on a high with SQL *Plus dependent listeners and ASM disk groups are automatically started.
- B. When you create a database service by modifying the SERVICE_NAMES initialization parameter, it is automatically added to the Oracle Restart configuration.
- C. When a database instance is started by using the SRVCTL utility and listener startup fails, the instance is still started.
- D. When a database is created by using SQL* Plus, it is automatically added to the Oracle Restart configuration.
Answer: C
Explanation:
About Startup Dependencies Oracle Restart ensures that Oracle components are started in the proper order, in accordance with component dependencies. For example, if database files are stored in Oracle ASM disk groups, then before starting the database instance, Oracle Restart ensures that the Oracle ASM instance is started and the required disk groups are mounted. Likewise, if a component must be shut down, Oracle Restart ensures that dependent components are cleanly shut down first. Oracle Restart also manages the weak dependency between database instances and the Oracle Net listener (the listener): When a database instance is started, Oracle Restart attempts to start the listener. If the listener startup fails, then the database is still started. If the listener later fails, Oracle Restart does not shut down and restart any database instances. http://docs.oracle.com/cd/E16655_01/server.121/e17636/restart.htm#ADMIN12710
NEW QUESTION 153
The performance of your database degrades between 11:00 AM and 3:00 PM. Automatic Workload
Repository (AWR) snapshots are collected on an hourly basis.
What is the most efficient way of diagnosing this problem?
- A. Create a custom ADDM task for the period defined by the snapshots taken between 11:00 AM and
3:00 PM. - B. Analyze the hourly ADDM reports generated between 11:00 AM and 3:00 PM.
- C. Create a SQL Tuning Set (STS) for the currently cached SQL statements in the shared pool and run
SQL Performance Analyzer (SPA) to generate recommendations. - D. Analyze the latest Automatic Database Diagnostic Monitor (ADDM) report.
Answer: A
NEW QUESTION 154
What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archiving enabled?
- A. The rows in the table are archived, and then truncated.
- B. The rows in the table are truncated without being archived.
- C. It fails with the ORA-665610 Invalid DDL statement on history-tracked message
- D. The rows in both the table and the archive are truncated.
Answer: B
Explanation:
You cannot roll back a TRUNCATE TABLE statement, nor can you use a FLASHBACK TABLE statement to retrieve the contents of a table that has been truncated.
NEW QUESTION 155
You administer an online transaction processing (OLTP) system whose database is stored in Automatic Storage Management (ASM) and whose disk group use normal redundancy.
One of the ASM disks goes offline, and is then dropped because it was not brought online before DISK_REPAIR_TIME elapsed.
When the disk is replaced and added back to the disk group, the ensuing rebalance operation is too slow.
Which two recommendations should you make to speed up the rebalance operation if this type of failure happens again? (Choose two.)
- A. Increase the value of the ASM_POWER_LIMIT parameter.
- B. Set the DISK_REPAIR_TIME disk attribute to a lower value.
- C. Specify the statement that adds the disk back to the disk group.
- D. Increase the number of DBWR_IO_SLAVES in the ASM instance.
- E. Increase the number of ASMB processes.
Answer: A,E
Explanation:
A: ASM_POWER_LIMIT specifies the maximum power on an Automatic Storage
Management instance for disk rebalancing. The higher the limit, the faster rebalancing will complete. Lower values will take longer, but consume fewer processing and I/O resources.
D:
* Normally a separate process is fired up to do that rebalance. This will take a certain amount of time. If you want it to happen faster, fire up more processes. You tell ASM it can add more processes by increasing the rebalance power.
* ASMB
ASM Background Process
Communicates with the ASM instance, managing storage and providing statistics Incorrect:
Not B: A higher, not a lower, value of DISK_REPAIR_TIME would be helpful here.
Not E: If you implement database writer I/O slaves by setting the DBWR_IO_SLAVES parameter, you configure a single (master) DBWR process that has slave processes that are subservient to it. In addition, I/O slaves can be used to "simulate" asynchronous I/O on platforms that do not support asynchronous I/O or implement it inefficiently. Database I/O slaves provide non-blocking, asynchronous requests to simulate asynchronous I/O.
NEW QUESTION 156
Which two are prerequisites for performing a flashback transaction? (Choose two.)
- A. Supplemental logging must be enabled.
- B. Block change tracking must be enabled tor the database.
- C. Recycle bin must be enabled for the database.
- D. EXECUTE privilege on the DBMS_FLASHBACK package must be granted to the user flashing back transaction.
- E. Flashback Database must be enabled.
- F. Undo retention guarantee for the database must be configured.
Answer: A,F
Explanation:
References: http://searchoracle.techtarget.com/tip/How-to-perform-Oracle-Flashback- Transaction-Queries
https://docs.oracle.com/cd/E11882_01/appdev.112/e41502/adfns_flashback.htm#ADFNS6
10
NEW QUESTION 157
Which three resources might be prioritized between competing pluggable databases when creating a multitenant container database plan (CDB plan) using Oracle Database Resource Manager? (Choose three.)
- A. Parallel server limit
- B. Local file system I/O
- C. CPU
- D. Exadata I/O
- E. Maximum Undo per consumer group
- F. Maximum Idle time
Answer: A,C,D
Explanation:
Explanation/Reference:
NEW QUESTION 158
What is the outcome of the SHUTDOWN ABORT command?
- A. Pending transactions are committed and the database is closed.
- B. Dirty buffers in the buffer cache and unwritten redo are not written to the data files and redo log files respectively.
- C. Uncommitted transactions are rolled back
- D. Instance recovery must be requested by the DBA at the next startup
Answer: B
NEW QUESTION 159
Examine the following parameters for a database instance:
MEMORY_MAX_TARGET=0
MEMORY_TARGET=0
SGA_TARGET=0
PGA_AGGREGATE_TARGET=500m
Which three initialization parameters are not controlled by Automatic Shared Memory Management (ASMM)?
- A. STREAMS_POOL_SIZE
- B. DB_16K_CACHE_SZIE
- C. JAVA_POOL_SIZE
- D. LOG_BUFFER
- E. SORT_AREA_SIZE
- F. DB_KEEP_CACHE_SIZE
Answer: B,D,F
Explanation:
Explanation/Reference:
Explanation:
Manually Sized SGA Components that Use SGA_TARGET Space
SGA Component, Initialization Parameter
/The log buffer
LOG_BUFFER
/The keep and recycle buffer caches
DB_KEEP_CACHE_SIZE
DB_RECYCLE_CACHE_SIZE
/Nonstandard block size buffer caches
DB_nK_CACHE_SIZE
Note:
* In addition to setting SGA_TARGET to a nonzero value, you must set to zero all initialization parameters listed in the table below to enable full automatic tuning of the automatically sized SGA components.
* Table, Automatically Sized SGA Components and Corresponding Parameters
NEW QUESTION 160
A database is stored in an Automatic Storage Management (ASM) disk group, disk group, DGROUP1 with SQL:
There is enough free space in the disk group for mirroring to be done.
What happens if the CONTROLLER1 failure group becomes unavailable due to error of for maintenance?
- A. Transactions and queries accessing database objects contained in any tablespace stored in DGROUP1 will fall.
- B. ASM does not mirror any data until the controller failure group is brought back online, and newly allocated primary allocation units (AU) are stored in the controller2 failure group, without mirroring.
- C. The data in the CONTROLLER1 failure group is copied to the controller2 failure group and rebalancing is initiated.
- D. Transactions accessing database objects contained in any tablespace stored in DGROUP1 will fail but queries will succeed.
- E. Mirroring of allocation units will be done to ASM disks in the CONTROLLER2 failure group until the CONTROLLER1 for failure group is brought back online.
Answer: B
NEW QUESTION 161
You create an Oracle 12c database and then import schemas that are required by an application which has not yet been developed.
You want to get advice on creation of or modifications to indexes, materialized views and partitioning in these schemas.
What must you run to achieve this?
- A. Automatic Database Diagnostic Monitor (ADDM)report
- B. SQL Performance Analyzer
- C. SQL Access Advisor with a SQL tuning set
- D. SQL Access Advisor with a hypothetical workload
- E. SQL Tuning Advisor
Answer: D
NEW QUESTION 162
Identify two correct statements about multitenant architectures.
- A. Patches are always applied at the CDB level.
- B. A PDB can have a private undo tablespace.
- C. Multiple CDBs share certain PDB resources.
- D. Multiple pluggable databases (PDBs) share certain multitenant container database (CDB) resources.
- E. Multitenant architecture can be deployed only in a Real Application Clusters (RAC) configuration.
- F. Multiple non-RAC CDB instances can mount the same PDB as long as they are on the same server.
Answer: A,D
Explanation:
Explanation
B: Using 12c Resource manager you will be able control CPU, Exadata I/O, sessions and parallel servers. A new 12c CDB Resource Manager Plan will use so-called "Shares" (resource allocations) to specify how CPU is distributed between PDBs. A CDB Resource Manager Plan also can use "utilization limits" to limit the CPU usage for a PDB. With a default directive, you do not need to modify the resource plan for each PDB plug and unplug.
E: New paradigms for rapid patching and upgrades.
The investment of time and effort to patch one multitenant container database results in patching all of its many pluggable databases. To patch a single pluggable database, you simply unplug/plug to a multitenant container database at a different Oracle Database software version.
Incorrect:
Not A:
* The Oracle RAC documentation describes special considerations for a CDB in an Oracle RAC environment.
* Oracle Multitenant is a new option for Oracle Database 12c Enterprise Edition that helps customers reduce IT costs by simplifying consolidation, provisioning, upgrades, and more.
It is supported by a new architecture that allows a container database to hold many pluggable databases. And it fully complements other options, including Oracle Real Application Clusters and Oracle Active Data Guard.
An existing database can be simply adopted, with no change, as a pluggable database; and no changes are needed in the other tiers of the application.
Not D: You can unplug a PDB from one CDB and plug it into a different CDB without altering your schemas or applications. A PDB can be plugged into only one CDB at a time.
not F:
* UNDO tablespace can NOT be local and stays on the CDB level.
* Redo and undo go hand in hand, and so the CDB as a whole has a single undo tablespace per RAC instance.
NEW QUESTION 163
Which two statements are true about standard database auditing? (Choose two.)
- A. DDL statements can be audited.
- B. Operations by the users logged on as SYSDBA cannot be audited.
- C. Statements that refer to standalone procedure can be audited.
- D. Only one audit record is ever created for a session per audited statement even though it is executed more than once.
Answer: A,C
NEW QUESTION 164
You have altered a non-unique index to be invisible to determine if queries execute within an acceptable response
ti me without using this index.
Which two are possible if table updates are performed which affect the invisible index columns?
- A. The index becomes unusable but the table is updated by the DML.
- B. The index is updated by the DML on the table.
- C. The index is not updated by the DML statements on the indexed table.
- D. The index automatically becomes visible in order to have it updated by DML on the table.
- E. The index remains invisible.
Answer: B,E
Explanation:
Unlike unusable indexes, an invisible index is maintained during DML statements.
Note:
* Oracle 11g allows indexes to be marked as invisible. Invisible indexes are maintained like any other index, but they
are ignored by the optimizer unless the OPTIMIZER_USE_INVISIBLE_INDEXES parameter is set to TRUE at the instance
or session level. Indexes can be created as invisible by using the INVISIBLE keyword, and their visibility can be toggled
using the ALTER INDEX command.
NEW QUESTION 165
Which are two ways for a database service to be recognized by a listener in Oracle Database 12c? (Choose
two.)
- A. Dynamic Registration by the PMON process
- B. Static registration in the listener.ora file using the SERVICE_NAME parameter
- C. Dynamic Registration by the SMON process
- D. Static registration in the listener.ora file using the GLOBAL_DBNAME parameter
- E. Dynamic Registration by the LREG process
Answer: B,E
NEW QUESTION 166
You execute this command:
Which two statements are true about segment space management for segments in this tablespace? (Choose two.)
- A. The PCTFREEstorage parameter has no effect on segments created in this tablespace.
- B. The PCTUSEDstorage parameter has no effect on segments created in this tablespace.
- C. Segments are automatically shrunk and compressed when rows are deleted.
- D. Space utilization inside segments is mapped by bitmaps.
Answer: B,D
NEW QUESTION 167
The HR user receives the following error while inserting data into the sales table:
On investigation, you find that the users tablespace uses Automatic Segment Space Management (ASSM). It is the default tablespace for the HR user with an unlimited quota on it.
Which two methods would you use to resolve this error?
- A. Changing segment space management for the USERS tablespace to manual
- B. Adding a data file to the USERS tablespace
- C. Enabling resumable space allocation by setting the RESUMABLE_TIMEOUT parameter to a nonzero value
- D. Creating a new tablespace with autoextend enabled and changing the default tablespace of the HR user to the new tablespace
- E. Altering the data file associated with the USERS tablespace to ex automatically
Answer: D,E
Explanation:
Explanation/Reference:
Explanation:
NEW QUESTION 168
Which three tasks can be automatically performed by the Automatic Data Optimization feature of Information lifecycle Management (ILM)? (Choose three.)
- A. Tracking the most recent read time for a table segment in the SYSAUX tablespace
- B. Tracking insert time by row for table rows
- C. Tracking the most recent write time for a table block
- D. Tracking the most recent write time for a table segment in a user tablespace
- E. Tracking the most recent write time for a table segment in the SYSAUX tablespace
- F. Tracking the most recent read time for a table segment in a user tablespace
Answer: C,D,F
Explanation:
Explanation/Reference:
Explanation:
Incorrect:
Not E, Not F When Heat Map is enabled, all accesses are tracked by the in-memory activity tracking module. Objects in the SYSTEM and SYSAUX tablespaces are not tracked.
* To implement your ILM strategy, you can use Heat Map in Oracle Database to track data access and modification.
Heat Map provides data access tracking at the segment-level and data modification tracking at the segment and row level.
* To implement your ILM strategy, you can use Heat Map in Oracle Database to track data access and modification. You can also use Automatic Data Optimization (ADO) to automate the compression and movement of data between different tiers of storage within the database.
NEW QUESTION 169
Identify two situations in which the alert log file is updated.
- A. Running a query on a table returns ORA-600: Internal Error.
- B. Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block corrupted (file # 14, block # 50) error.
- C. Inserting a value into a table returns ORA-01722: invalid number.
- D. Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.
- E. Creating a table returns ORA-00955: name us already in used by an existing objects.
Answer: A,B
Explanation:
The alert log is a chronological log of messages and errors, and includes the following items:
*All internal errors (ORA-600), block corruption errors (ORA-1578), and deadlock errors (ORA-60) that occur
*Administrative operations, such as CREATE, ALTER, and DROP statements and STARTUP, SHUTDOWN, and ARCHIVELOG statements
*Messages and errors relating to the functions of shared server and dispatcher processes
*Errors occurring during the automatic refresh of a materialized view
*The values of all initialization parameters that had nondefault values at the time the database and instance start
Note:
*The alert log file (also referred to as the ALERT.LOG) is a chronological log of messages and errors written out by an Oracle Database. Typical messages found in this file is: database startup, shutdown, log switches, space errors, etc. This file should constantly be monitored to detect unexpected messages and corruptions.
NEW QUESTION 170
......
Oracle 1Z0-062 Dumps
Oracle 12c Dumps are tests created to demonstrate all the features of our Oracle 12c Questions Web Simulator. You will be able to access to many questions and will have the ability to test your knowledge on-line.
There are several components you can interact with when you take our practice exams:
- Keep an eye on the countdown. This will tell you how much time is left. When the countdown expires, the test will be automatically submitted.
- Navigate the Oracle 12c Questions using the “Previous” and “Next” buttons.
- if you want to take a look at the correct answers for a question, just click the “Solution” button. In the solution section you will be able to check your answers as well as find a full explanation.
- Read the question and select only the answer(s) you think are correct by checking the corresponding check box.
- Once the test is submitted, the result section will expand. Here, you will be able to review all the questions of the test. From here, you can also navigate directly to each question.
- Start now our 1Z0-062 exam dumps on-line Simulator.
Prepare For The 1z0-062 Question Papers In Advance: https://topexamcollection.pdfvce.com/Oracle/1z0-062-exam-pdf-dumps.html