Vous allez choisir Pass4Test après essayer une partie de Q&A Oracle 1Z0-060 (gratuit à télécharger). Le guide d'étude produit par Pass4Test est une assurance 100% à vous aider à réussir le test Certification Oracle 1Z0-060.
Le temps est tellement précieux dans cette société que une bonn façon de se former avant le test Oracle 1z0-590 est très important. Pass4Test fait tous efforts à assurer tous les candidats à réussir le test. Aussi, un an de mise à jour est gratuite pour vous. Si vous ne passez pas le test, votre argent sera tout rendu.
Pass4Test est un fournisseur important de résume du test Certification IT dans tous les fournissurs. Les experts de Pass4Test travaillent sans arrêt juste pour augmenter la qualité de l'outil formation et vous aider à économiser le temps et l'argent. D'ailleur, le servie en ligne après vendre est toujours disponible pour vous.
Code d'Examen: 1Z0-060
Nom d'Examen: Oracle (Upgrade to Oracle Database 12c)
Questions et réponses: 150 Q&As
Code d'Examen: 1z0-590
Nom d'Examen: Oracle (Oracle VM 3 for x86 Essentials)
Questions et réponses: 82 Q&As
La Q&A Oracle 1Z0-060 est étudiée par les experts de Pass4Test qui font tous effort en profitant leurs connaissances professionnelles. La Q&A de Pass4Test est ciblée aux candidats de test IT Certification. Vous voyez peut-être les Q&As similaires dansn les autres site web, mais il n'y a que Pass4Test d'avoir le guide d'étude plus complet. C'est le meilleur choix à s'assurer le succès de test Certification Oracle 1Z0-060.
Vous pouvez tout d'abord télécharger le démo Oracle 1z0-590 gratuit dans le site Pass4Test. Une fois que vous décidez à choisir le Pass4Test, Pass4Test va faire tous efforts à vous permettre de réussir le test. Si malheureusement, vous ne passez pas le test, nous allons rendre tout votre argent.
Pass4Test a une grande équipe composée des experts d'expérience dans l'industrie IT. Leurs connaissances professionnelles et les recherches font une bonne Q&A, qui vous permet à passer le test Oracle 1z0-590. Dans Pass4Test, vous pouvez trouver une façon plus convenable à se former. Les resources de Pass4Test sont bien fiable. Choisissez Pass4Test, choisissez un raccourci à réussir le test Oracle 1z0-590.
Il faut une bonne préparation et aussi une série de connaissances professionnelles complètes pour réussir le test Oracle 1z0-590. La ressourece providée par Pass4Test peut juste s'accorder votre demande.
1Z0-060 Démo gratuit à télécharger: http://www.pass4test.fr/1Z0-060.html
NO.1 Identify three benefits of Unified Auditing.
A. Decreased use of storage to store audit trail rows in the database.
B. It improves overall auditing performance.
C. It guarantees zero-loss auditing.
D. The audit trail cannot be easily modified because it is read-only.
E. It automatically audits Recovery Manager (RMAN) events.
Answer: A,B,E
certification Oracle certification 1Z0-060 certification 1Z0-060 certification 1Z0-060 1Z0-060 examen certification 1Z0-060
Explanation:
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.2 You 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 are indexed.
Identify three possible reasons for this.
A. Missing or stale histogram statistics
B. Undersized shared pool
C. High clustering factor for the indexes
D. High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameter
E. Oversized buffer cache
Answer: A,C,D
Oracle 1Z0-060 1Z0-060 examen certification 1Z0-060 1Z0-060 examen
Explanation:
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 blocks read 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.
NO.3 In your database, you want to ensure that idle sessions that are blocking active are
automatically terminated after a specified period of time.
How would you accomplish this?
A. Setting a metric threshold
B. Implementing Database Resource Manager
C. Enabling resumable timeout for user sessions
D. Decreasing the value of the IDLE_TIME resource limit in the default profile
Answer: D
certification Oracle certification 1Z0-060 1Z0-060 examen 1Z0-060 examen certification 1Z0-060
Explanation:
An Oracle session is sniped when you set the idle_time parameter to disconnect inactive sessions.
(It's only like sniping on ebay in that a time is set for an action to occur.)
Oracle has several ways to disconnect inactive or idle sessions, both from within SQL*Plus via
resources profiles (connect_time, idle_time), and with the SQL*net expire time parameter. Here are
two ways to disconnect an idle session:
Set the idle_time parameter in the user profile Set the sqlnet.ora parameter expire_time
NO.4 The trace files may be aggregated by using the trcess utility.
NO.5 Your multitenant container database (CDB) contains a pluggable database, HR_PDB. The
default permanent tablespace in HR_PDB is USERDATA. The container database (CDB) is open and
you connect RMAN.
You want to issue the following RMAN command:
RMAN > BACKUP TABLESPACE hr_pdb:userdata; Which task should you perform before issuing the
command?
A. Place the root container in ARHCHIVELOG mode.
B. Take the user data tablespace offline.
C. Place the root container in the nomount stage.
D. Ensure that HR_PDB is open.
Answer: A
Oracle certification 1Z0-060 1Z0-060 examen certification 1Z0-060
NO.6 Your database has the SRV1 service configured for an application that runs on middle-tier
application server. The application has multiple modules. You enable tracing at the service level by
executing the following command:
SQL > exec DBMS_MONITOR.SERV_MOD_ACT_TRACE_ENABLE ('SRV1');
The possible outcome and actions to aggregate the trace files are as follows:
1.The command fails because a module name is not specified.
2.A trace file is created for each session that is running the SRV1 service.
3.An aggregated trace file is created for all the sessions that are running the SRV1 service.
NO.7 Identify two situations in which the alert log file is updated.
A. Running a query on a table returns ORA-600: Internal Error.
B. Inserting a value into a table returns ORA-01722: invalid number.
C. Creating a table returns ORA-00955: name us already in used by an existing objects.
D. Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.
E. Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block
corrupted (file # 14, block # 50) error.
Answer: A,E
certification Oracle certification 1Z0-060 certification 1Z0-060 certification 1Z0-060
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.
NO.8 The trace files be aggregated by using the tkprof utility.
Identify the correct outcome and the step to aggregate by using tkprof utility?
A. 1
B. 2 and 4
C. 2 and 5
D. 3 and 4
E. 3 and 5
Answer: B
Oracle examen 1Z0-060 examen certification 1Z0-060
Explanation:
Tracing information is present in multiple trace files and you must use the trcsess
tool to collect it into a single file.
Incorrect:
Not 1: Parameter service_name
Name of the service for which tracing is enabled.
module_name
Name of the MODULE. An optional additional qualifier for the service.
Note:
*The procedure enables a trace for a given combination of Service, MODULE and ACTION name. The
specification is strictly hierarchical: Service Name or Service Name/MODULE, or Service Name,
MODULE, and ACTION name must be specified. Omitting a qualifier behaves like a wildcard, so that
not specifying an ACTION means all ACTIONs. Using the ALL_ACTIONS constant achieves the same
purpose.
*SERV_MOD_ACT_TRACE_ENABLE Procedure
This procedure will enable SQL tracing for a given combination of Service Name, MODULE and
ACTION globally unless an instance_name is specified.
*DBMS_MONITOR.SERV_MOD_ACT_TRACE_ENABLE(
service_name IN VARCHAR2,
module_name IN VARCHAR2 DEFAULT ANY_MODULE,
action_name IN VARCHAR2 DEFAULT ANY_ACTION,
waits IN BOOLEAN DEFAULT TRUE,
binds IN BOOLEAN DEFAULT FALSE,
instance_name IN VARCHAR2 DEFAULT NULL);
4. 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
certification Oracle 1Z0-060 1Z0-060 examen certification 1Z0-060
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.
5. 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?
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: A,D
certification Oracle 1Z0-060 1Z0-060 certification 1Z0-060
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:
ORAPWD FILE=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.
没有评论:
发表评论