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Test Oracle 1z0-078 Valid & Valid 1z0-078 Test Cram

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Oracle 1z0-078 Exam Syllabus Topics:

Topic
Details

Topic 1

Configure the RAC database to use ARCHIVELOG mode and the fast recovery area
Convert a single instance Oracle database to RAC

Topic 2

Describe the multitenant architecture in RAC and non-RAC environments
Use Automatic Database Diagnostic Monitor (ADDM) in RAC

Topic 3

Explain global enqueue and instance lock management
Explain the benefits of Fast Application Notification (FAN)

Topic 4

Optional Install for the Grid Infrastructure Management Repository
Install a patchset with the Oracle Universal Installer (OUI) utility

Topic 5

Describe the architecture and components of Flex ASM
Monitor ASM instances using the V$ASM dynamic performance views

Topic 6

Explain the types of patches and upgrades available
Explain the hivh availability components of Oracle Clusterware

Topic 7

Explain use of Affinity to reduce Global Resource Contention
Define undo tablespaces in a RAC environment

Topic 8

Explain how global resources are managed
Determine RAC-specific wait-events, global enqueues and system statistics

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Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration Sample Questions (Q42-Q47):

NEW QUESTION # 42
Which two benefits are obtained by using Affinity to reduce global resource contention? (Choose two.)

A. To enhance the performance of distributed transactions with applications server that provides XA affinity, you can automatically spawn new dedicated database RAC instances to isolate distributed transaction.
B. Oracle RAC affinity for partitioned tables routes database requests to Oracle RAC instances in such a way that each instance always gets requests for a disjoint subset of rows in the database, this affinity leads to higher Oracle RAC performance and scalability because of improved cache locality and reduced internode synchronization and block pings.
C. To enhance the performance of distributed transactions with applications server that provides XA affinity, you can direct all branches of a distributed transaction to a single instance in the cluster to improve cache locality and reduce internode synchronization and block pings.
D. Oracle RAC affinity for partitioned tables routes all database requests for a partition tables to a single Oracle RAC instance leading to higher Oracle RAC performance and scalability because of improved cache locality and reduced internode synchronization and block pings of the partition tables.
E. Oracle RAC affinity for partitioned tables routes database requests to all available Oracle RAC instances evenly to create a global affinity in such a way that each instance always gets an even number of requests leading to higher Oracle RAC performance by using a higher levels of available global cache to reduce global resource contention.

Answer: C,D

NEW QUESTION # 43
Which three statements are true about accessing ASM files? (Choose three.)

A. If a database instance writes to an ASM-based datafile whose redundancy attribute is set to mirror, then the ASM instance writes the mirror copy
B. Database instances can write metadata to ASM diskgroups.
C. Database instances perform read I/O directly to ASM Disks.
D. Database instances perform read I/O using an ASM instance as an I/O Server.
E. ASM instances can write metadata to ASM diskgroups.

Answer: B,C,E

NEW QUESTION # 44
Which two tasks must be performed before launching the Oracle universal installer to install Oracle Database Software for RAC? (Choose two.)

A. The Clusterware stack must be up on all cluster nodes where the Database software will be installed.
B. Grid Infrastructure must be installed on all cluster nodes.
C. SSH user equivalence for the Oracle software owner must be configured on all cluster nodes.
D. Grid Infrastructure must be installed on all cluster nodes where the Database software will be installed.
E. ssh user equivalence for the Oracle software owner must be configured on all cluster nodes where the Database software will be installed.
F. The Clusterware stack must be up on all cluster nodes.

Answer: B,E

NEW QUESTION # 45
You administer a RAC database that currently runs on a four-node cluster but which has three instances.
Which two statements are always true about redo logs for this RAC database? (Choose two.)

A. All the instances must have the same number of redo log groups and each group must have the same number of redo log members.
B. A redo log group added using alter database add logfile without the instance clause is added to each instance.
C. A thread of redo is automatically dropped when an instance is removed from a RAC database by using SRVCTL.
D. A thread of redo must be created before starting a fourth instance if a thread is not already available.
E. A thread of redo must contain at least two log groups before it can be enabled.

Answer: D,E

NEW QUESTION # 46
Which three statements are true about diagnostic reporting for the OCR and OLR files? (Choose three.)

A. The OCRCONFIG utilty can be used to repair a corrupt OCR file in an online fashion with the clusterware running on all nodes.
B. The CLUVFY utility can check the integrity of the OCR but not the OLR.
C. The OCRDUMP utility can dump specific keys from the OCR in an online fashion with the clusterware running on all nodes.
D. The OCRCHECK utility can check the OLR in an online fashion with the clusterware running on all nodes.
E. The OCRDUMP utility can dump specific keys from the OLR in an online fashion with the clusterware running on all nodes.

Answer: C,D,E

NEW QUESTION # 47
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