1z1-468 試験問題を無料オンラインアクセス

Which is a valid reason for using Coherence Elastic Data?

• A.You want to store data on very large heaps.
• B.You want to extend your cluster across a WAN.
• C.Data must be persisted to disk to ensure fault tolerance.
• D.You want to cache more that the total amount of RAM on your systems.

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

• A.Create a new connection every time a CacheStore method is invoked.
• B.Configure Coherence to use its built-in capabilities to manage connections.
• C.Create a new connection in the CacheStore constructor and store a to it that can be accessed by the CacheStore methods.
• D.Use a connection pool provided by an application server, the JDBC driver, or a third party.

An application frequently requests data (from s Coherence cache configured with a cache loader) that may not be available in the underlying data source. The cost of looking up data via the cache loader is expensive in terms of time and resources.
To reduce these costs, which configuration should be used to cache the notion that an entry is not available?

• A.This can't be achieved with Coherence.
• B.Modify the application to maintain a "misses" cache to keep track of the entries that were expected to be found in the other cache, but were recently not found.
• C.Configure a "cache-miss-scheme" on the appropriate cache.
• D.Modify the cache loader to maintain a "map" of entries not found, and consult this map before attempting to load an entry from the external source.

Which two mechanisms are explicitly monitored to determine death of a cluster member?
(Choose two.)

• A.heartbeats
• B.garbage collection
• C.TCP socket connections
• D.stuck threads

Which statement describes the difference between the Runtime Analyzer and JRockit
Flight Recorder?

• A.Flight Recorder causes significantly higher processor overhead than Runtime Analyzer.
• B.Flight Recorder cannot be run in an "always-on" mode.
• C.Only Runtime Analyzer allows detailed heap analysis.
• D.Thread deadlock analysis is not possible in Flight Recorder.
• E.Only Flight Recorder allows "back-in-time" analysis.