1Z0-468 Online Practice Questions and Answers

Which three plug-ins are pre-installed with EM 12c?

A. Oracle Fusion Middleware

B. Oracle Cloud Application

C. Oracle Database

D. Oracle MOS (My Oracle Support)

E. Exalogic Elastic Cloud Infrastructure

Which two actions can be used to create/add an index in Coherence? (Choose two.)

A. ValueExtractor

B. Comparator

C. QueryMap

D. MapIndex

E. SimpleMapIndex

With which WLS license is WLS Management Pack EE included?

A. WebLogic Suite

B. WebLogic Server Standard Edition

C. WebLogic Server Enterprise Edition

D. WebLogic Server EE or WebLogic Suite

E. WLS Management Pack is not included in any of the WLS packs

A company has a billing and ordering application accessed by ten million subscribers. Some subscribers rarely log in, and others log in almost every day. The company's goal is to provide the quickest possible response to web requests. Accesses make repeated reads and occasional writes to user sessions, each of which is 4 KB. Which architecture meets these needs?

A. a replicated cache, so that applications can always access data locally

B. there is too much data for Coherence to be effective in this scenario

C. a distributed cache with sticky sessions and near caching

D. a small replicated cache for frequent users and database read-through

When an object placed into a cache implements the Java Runnable interface, Coherence will _______________.

A. immediately schedule it to be an on the service thread of the cache in which it was placed

B. do nothing; Coherence does not differentiate between types of value objects

C. ultimately attempt to run the object on a free worker thread associated with the service of the cache in which the object was placed

D. hand the object over to the Invocation service to invoke the run method

What is the first step towards creating an appliance?

A. introspection of an installed system

B. introspection of a VM template

C. fileset capture

D. template creation

Which two JVM components can be configured to impact application performance? (Choose two.)

A. Heap

B. Local variables stack

C. Class loader

D. Bytecode interpreter

E. Garbage Collector

How would you create an SLA based on the "JVM Runtime Up" metric for a specific WLS server?

A. Deploy JVM Diagnostics and set a threshold on the JVMD agent up time.

B. Create a Service target that uses the WLS Domain as its system, and the JVM Runtime as itsperformance metric. Configure SLA by using that metric.

C. Define a threshold on the metric on the All Metrics page, and define a rule to create an Event for that incident. Define an SLA on the count of Incidents.

D. You cannot create an SLA on JVM-related metrics.

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. dynamically increasing the partition count on a running server

B. configuring an overflow scheme so that spikes are handled gracefully

C. caching the results of the web service call with a configured expiration

D. dynamically adding Coherence cache servers to the cluster

The performance of your query is very slow.

Which two actions would you take to diagnose potential bottlenecks? (Choose two.)

A. Check that indexes are registered against the fields being queried.

B. Monitor the task execution time.

C. Use the QueryRecorder to see the query Trace and Explain plan.

D. Check that indexes are cached against the fields being queried.

E. Monitor the task performance time.

When integrating a CacheStore with a database, which technique is correct for managing database connections?

A. Use a connection pool provided by an application server, the JDBC driver, or a third party.

B. Create a new connection every time a CacheStore method is invoked.

C. Create a new connection in the CacheStore constructor and store a to it that can be accessed by the CacheStore methods.

D. Configure Coherence to use its built-in capabilities to manage connections.

Which tool is not shipped with the JRockit JDK?

A. Mission Control

B. Flight Recorder

C. Studio Profiler

D. Memory Leak Detector

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. AUTO

B. NONE

C. ALL

D. PRESENT

What three operations can an EM_PROVISIONONG_DESIGNER perform that an EM_PROVISIONONG_OPERATOR cannot? (Choose three.)

A. Create profiles, components, and directives in the Software Library.

B. Access provisioning profiles in the Software Library.

C. Customize the default deployment procedure.

D. Create deployment procedure templates.

E. There is no difference in the type of operations that these two users can perform.

Your application had experienced an OutOfMemoryError on one of the cache servers. You had configured the JVM to produce a heap dump when OutOfMemoryErrors occur. Your analysis of the heap dump indicates that approximately 90% of the heap is consumed by instances of com.tangosol.util.Binary.

What configuration change will reduce the number of com.tangosol.util.Binary instances?

A. Introduce a near cache for all partitioned caches.

B. Increase the size of the thread pool for all cache services.

C. Increase the expiry delay on all distributed-scheme backing maps.

D. Lower the high-unit threshold on all distributed-scheme backing maps.