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Oracle Database 12c: RAC and Grid Infrastructure Administration

Question No: 31

Which three statements are true about the services created when the DBCA is used to create a RAC database?

  1. They can be policy managed for a multitenant database.

  2. Singleton services are not permitted for multitenant databases.

  3. A server-pool must be created with SRVCTL before creating a policy-managed RAC database that usesthat server-pool for a service.

  4. Policy-managed services specified for a database allow the creation of a new server pool using DBCA.

  5. They can be administrator managed for a multitenant database.

Answer: A,C,D

Question No: 32

Which three statements are true about the Global Enqueue Service and Global Enqueue Service (GES) Resources in Oracle 12c RAC?

  1. The mastering instance for a GES resource is never the same as the instance that owns the enqueue inexclusive mode.

  2. The LMD0 runs only on the instance that masters all GES resources.

  3. When a GES resource is dequeued, converters if any exist for that resource, are processed before anywaiter for that resource.

  4. The LMD0 process on the requesting instance communicates with the LMD0 process on the masteringinstance if they are not the same instance.

  5. The mastering instance for a GES resource is never the same as the instance that owns an enqueue inshared mode.

  6. An LMD0 process runs on all instances.

  7. The foreground process on the requesting instance communicates with the LMD0 process on themastering instance if they are not the same instance.

Answer: A,F,G

Question No: 33

Which two statements are true concerning Oracle 12c Clusterware-managed application VIPs?

  1. If an application sends messages to be displayed and sets the DISPLAY variable, then an application VIP isrequired.

  2. An application VIP is created on the default network by the appvipcfg utility.

  3. An application VIP is created on the interconnect network by the crsctl utility.

  4. An application VIP can be created with the crsctl utility.

  5. Application VIPs do not fail over to surviving cluster nodes when the node hosting the VIP fails.

Answer: C,E

Question No: 34

Which three statements are true about displaying the location of voting files, OCR files, or OLR files in Oracle Clusterware 12c on a UNIX system?

  1. Use cat /etc/oracle/ocr.loc to view the location of the OCR if stored in ASM.

  2. Use ocrcheck command to view the location of the OCR only if stored in a file system.

  3. Use crsctl querry votedisk to view the location of voting files if stored in ASM.

  4. Use the ls command in the asmcmd utility to view the location of voting files if stored in ASM.

  5. Use crsctl querry votedisk to view the location of voting files if stored in a file system.

  6. Use cat /etc/oracle/olr.loc to view the location of the OCR and OLR if stored on a file system.

Answer: B,E,F

Question No: 35

Which three statements are true about node listeners in a Grid Infrastructure Cluster using Flex ASM?

  1. They run from the Grid Infrastructure home by default.

  2. They listen only for database instances on the same node.

  3. They listen only for the ASM instance on the same node.

  4. There only can be one node listener per node.

  5. They listen on behalf on any ASM instance and all database instances on the same node.

Answer: B,C,E

Question No: 36

Which two tasks must be performed before launching the Oracle universal installer to install Oracle Database Software for RAC?

  1. ssh user equivalence for the Oracle software owner must be configured on all cluster nodes.

  2. Grid infrastructure must be installed on all cluster nodes where the Database software will be installed.

  3. ssh user equivalence for the Oracle software owner must be configured on all cluster nodes where theDatabase Software will be installed.

  4. Grid infrastructure must be installed on all cluster nodes.

  5. The Clusterware stack must be up on all cluster nodes.

Answer: A,D

Question No: 37

Which two statements are true concerning buffer states as shown in GV$BH.STATUS in Oracle 12c RAC?

  1. An XCUR block image may exist for a specific database block in only one instance.

  2. A CR image may get served from one instance to another to satisfy a read request.

  3. An XCUR image is not downgraded to a SCUR image for shipping to another instance until commits occurfor updated rows on the block.

  4. A PI block image may exist for a specific database block in only one instance.

Answer: A,D

Question No: 38

Examine these commands:

$ srvctl add service -db racdb -service erp -serverpool srvpooll

-failovertype TRANSACTION -commit_outcome TRUE – replay_init_time 1800

-retention 86400 -notification TRUE -rlbgoal SERVICE_TIME -clbgoal SHORT

-failoverretry 30 – failoverdelay 10

$ srvctl start service – db racdb – service erp

Instances RACDB_1 and RACDB_2 run on host01 and host02, respectively. Which three statements are true regarding the service erp?

  1. Connections to the database using erp benefit from Application Continuity.

  2. erp is configured for an administrator-managed RAC database.

  3. Load Balancing Advisory (LBA) will be disabled for this service.

  4. Connections to the database using erp benefit from Load Balancing.

  5. Connections to the database using erp benefit from Transaction Guard.

Answer: C,D,E

Question No: 39

Which three statements are true about opatch version 12?

  1. It can apply patches to a database ORACLE_HOME.

  2. It can apply a patchset to a database ORACLE_HOME.

  3. It cannot apply a patch to a Grid Infrastructure ORACLE_HOME.

  4. It cannot run with root privileges on a Unix-like system.

  5. It can apply some patches without shutting down database instances.

  6. It can only apply patches on the cluster node from where it is issued.

Answer: A,D,E

Question No: 40

Which two are characteristics of any node that is part of a Grid Plug and Play (GPnP) Domain in Oracle Clusterware?

  1. It has at least two nonroutable interfaces inside the GPnP domain for the private interconnect.

  2. It has at least two routable interfaces outside the GPnP domain for the public interface.

  3. It has at least one routable interface inside the GPnP domain for the private interconnect.

  4. It has at least one routable interface outside the GPnP domain for the public interface.

  5. It has a unique identifier that is unique outside the GPnP domain.

  6. It has a unique identifier that is unique inside the GPnP domain.

Answer: C,E

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