A customer wants to improve the availability of a web application and provide more predictable scalability when scaling out the application. Which Feature of WebLogic should you recommend to help…

Question

Options

• AOracle Web Grid
• BActiveCache
• CCoherence Grid Edition
• DWebLogic Session Replication
• ECoherence Web Edition

• A
  3% (1)
• B
  12% (4)
• D
  6% (2)
• E
  79% (26)

Explanation

Coherence Web Edition integrates Oracle Coherence's distributed caching directly with WebLogic to manage HTTP session state across a cluster, storing sessions in a Coherence data grid rather than in individual server memory - this eliminates single points of failure (improving availability) and keeps session management overhead constant as servers are added (predictable scalability).

Why the distractors are wrong:

• A. Oracle Web Grid - a marketing umbrella term for Oracle's grid strategy, not a discrete WebLogic feature you can deploy.
• B. ActiveCache - embeds Coherence in WebLogic for application data caching, not specifically HTTP session management.
• C. Coherence Grid Edition - the full enterprise data grid product, aimed at large-scale in-memory data management beyond web sessions; not the WebLogic-integrated session solution.
• D. WebLogic Session Replication - WebLogic's built-in peer-to-peer replication works but becomes unpredictable at scale because replication traffic grows with each server added, which is exactly what the question rules out.

Memory tip: Focus on the word "Web" - Coherence Web Edition is named for its purpose: managing web (HTTP) sessions. When you see "availability + predictable scale-out for a web app," anchor on the edition whose name literally says "Web."

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