Oracle 1z0-468 問題集

質問 1：
You plan to deploy your Coherence application to a new production environment.
You want to ensure that the new environment supports multicast, and that all of the machines are connected to the same physical switch for optimal performance.
What two tools will help confirm that the new environment satisfies both criteria? (Choose two.)
A. Coherence Console
B. Coherence MulticastTest
C. Coherence CohQL Command-Line
D. Coherence DatagramTest
正解：B,C
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Which statement about JRockit Discovery Protocol (JDP) is true?
A. JDP is a subset of HTTP.
B. JDP enables network auto discovery of JVMs.
C. JDP can be used by application to exchange serialized data between JVMs.
D. JDP was initially introduced in the HotSpot VM 1.5.
正解：B

質問 3：
Consider an application using a Coherence partitioned cache to store HTTP session data.
There is a load balancer that performs client based affinity (or "sticky load balancing"), meaning that requests that come from a particular user will be routed to the same application server every time. Most user requests will read from the session, thus making near caching topology a good fit.
Which near cache configuration matches the requirements for this application?
A. PRESENT
B. NONE
C. ALL
D. AUTO
正解：A

質問 4：
Which component is optimized for the JRockit VM?
A. swing-based desktop applications
B. server-side applications
C. browser-based applets
D. mobile phones
E. embedded devices
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 5：
What is the main method used to collect the monitoring data of a Coherence cluster, its nodes, and caches?
A. one central Enterprise Manager agent querying JMX data from a single management node
B. one central Enterprise Manager agent, querying JMX data from each node in the cluster
C. Enterprise Manager agent on every host, querying JMX data from nodes running on the host, and a central Enterprise Manager agent querying JMX data from a management node for cluster-level
D. JVMD agent collecting data trough sampling of the JVM for each node
E. Enterprise Manager agent on every host, querying JMX data from nodes running on that host
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
In which three scenarios would you use JRockit Mission Control? (Choose three.)
A. heap analysis
B. finding hot methods
C. debugging with breakpoints
D. tracking latencies
E. static mode analysis
正解：A,B,D

質問 7：
A company relies on third-party web services for data.
Which two Coherence features can be applied to shield its customers from anticipated spikes in demand of the web services, without suffering potential performance degradation? (Choose two.)
A. caching the results of the web service call with a configured expiration
B. dynamically increasing the partition count on a running server
C. dynamically adding Coherence cache servers to the cluster
D. configuring an overflow scheme so that spikes are handled gracefully
正解：C,D

質問 8：
Identify three situations where Coherence is used (Choose three.)
A. to offload shared services or databases on repeated reads
B. to accelerate complex RDBMS joins by storing data in memory
C. to perform map-reduce aggregations of unstructured data
D. to scale the amount of data accessed on the application or middleware tier
E. to reduce database load by batching and coalescing writes
正解：A,C,E