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Exalogic Elastic Cloud X2-2 Essentials

Question No: 61

After you enter configuration information in the Exalogic configrator spreadsheet, which configuration file is generated?

  1. Exalogic_factory_original.conf

  2. Exalogic_deploy.conf

  3. Exalogic_initial.conf

  4. generate_factory_config.sh

Answer: B

Reference: http://docs.oracle.com/cd/E18476_01/doc.220/e18478/app_a.htm#BEIFBIGD (Previewing the configuration and generating the configuration file)

Question No: 62

Which factor determines the netmask for an IP subnet?

  1. the range of usable IP addresses you need

  2. the availability of IP addresses in an enterprise

  3. the type of network interface

  4. the operating system running on compute nodes

Answer: A

Question No: 63

When analyzing a performance problem, which four high level statistics are checked by the storage appliance?

  1. network bytes/sec

  2. NFS operations/sec

  3. state of InfiniBand ports on the switch

  4. disk operations/sec

  5. CPU utilization

  6. state of the Cisco management switch

Answer: A,B,D,E

Question No: 64

WebLogic Server provides in two ways including and

  1. RAC datasource

  2. JDBC over SDP

  3. Active GridLink

  4. Multi-datasource

Answer: C,D

Reference: http://docs.oracle.com/cd/E17904_01/web.1111/e13737/oracle_rac.htm

Question No: 65

Which two network channels are necessary to be configured for managed servers?

  1. HTTP client channel

  2. T3 channel

  3. SDP channel

  4. EoIB channel

Answer: A,B

Reference: http://docs.oracle.com/cd/E18476_01/doc.220/e18479/create_domain.htm#BABHGIBB

Question No: 66

Which two statements are true about what you can do with Oracle Enterprise Manager Ops Center?

  1. You can launch the ILOM console.

  2. You can launch the storage appliance UI.

  3. You can start Node Manager.

  4. You can launch the Exalogic Configurator spreadsheet.

Answer: A,B

Reference: http://docs.oracle.com/cd/E24628_01/doc.121/e18416/chapter_assetmgmt.htm (Managing a Sun ZFS storage appliance)

The ILOM management interface is integrated with Oracle Enterprise Manager Ops Center. Note: Oracle Integrated Lights Out Manager (ILOM)

Question No: 67

Which two JARs/WARs must be deployed on WebLogic Server to Coherence Web to function properly on Exalogic?

  1. Coherence.jar

  2. Active – cache.jar

  3. Active – cache.war

  4. Coherence – web – spi.war

  5. Sdp.jar

Answer: A,D

Reference: http://docs.oracle.com/cd/E18686_01/coh.37/e18690/cweb_wls.htm

Question No: 68

Which two statements are correct concerning profile configuration supported by the sun ZFS storage appliance?

  1. In triple parity RAID configuration, data is mirrored and capacity is reduced by half.

  2. In double parity RAID configuration, each stripe contains two parity disks.

  3. In mirrored configuration, data is mirrored and capacity is reduced by one third.

  4. In striped configuration, data is striped across disks.

Answer: B,D

Question No: 69

After creating a mount point for a shared file system on a Exalogic Linux compute node, which file would you edit to add entries for the mount point?

  1. /etc/resolv.conf

  2. /etc/fstab

  3. /etc/iscsi.conf

  4. /etc/xinetd.conf

Answer: B

Question No: 70

What is the main difference between a multi-datasource and an Active GridLink

datasource?

  1. There is no difference. They are just different terms referring to the same construct and capability.

  2. An Active GridLink datasource is able to respond to FAN events to provide Fast Connection Failover (FCF), Runtime Connection Load-Balancing (RCLB), and RAC instance graceful shutdown.

  3. An Active GridLink datasource is designed specifically for Exadata and cannot be used with any other RAC database.

  4. A multi-datasource is meant to work only with non-Oracle high-availability datasources.

Answer: B

Reference: http://www.oracle.com/technetwork/middleware/weblogic/gridlink-rac-wp- 494900.pdf (Active Gridlink for Rac, first paragraph)

  • (FAN) With Active GridLink, WebLogic subscribes to the database#39;s Fast Application Notification (FAN) events using Oracle Notification Services (ONS). This allows the

    WebLogic connection pool to make more informed runtime load-balancing decision based on the current workload of each RAC node. By sending database calls to the node with lowest current workload, the average latency of user request/response times is reduced.

  • (FCF) Additionally, Active GridLink uses Fast Connection Failover (FCF), which also uses the notification events, to enable rapid database failure detection for greater application resilience. This feature also eases the system management overhead by allowing

  • WebLogic to automatically reconfigure its connection pool, in the event of planned additions or removals of RAC nodes.

    Note: A new technology component has been added to WebLogic Server on Exalogic called #39;Active

    GridLink for RAC (Real Application Clusters)#39;. Active GridLink for RAC provides optimized

    WebLogic-to-Oracle RAC database connectivity by interfacing WebLogic Server directly with the Oracle RAC protocols. This new technology supersedes the existing WebLogic Server capability commonly referred to as #39;Multi-Data-Sources#39;. Active GridLink for RAC provides more intelligent load-balancing across RAC nodes based on the current workload of each RAC node, faster connection failover if a RAC node fails and more transparent RAC node location management. Active GridLink is also able to handles global transactions more optimally, where multiple individual database operations have been encapsulated into a single atomic transaction, by the enterprise Java application. The net effect is, for enterprise Java applications involving intensive database work, applications achieve a higher level of availability with better throughput with reduced and more consistent response times. In addition to the performance benefits, Active GridLink for RAC

    (figure 3), also simplifies the configuration of Data Sources in WebLogic Server, reducing the number of configuration artifacts required for Oracle RAC connectivity and mostly eliminating RAC Service configuration changes from having a corresponding change in WebLogic Server.

    Reference: Oracle Exalogic Elastic Cloud: Software Overview, Oracle White Paper

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