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 solve this problem?
A.
Oracle Web Grid
B.
ActiveCache
C.
Coherence Grid Edition
D.
WebLogic Session Replication
E.
Coherence Web Edition
Explanation:
* Built on top of Oracle Coherence (Coherence), Coherence*Web:
/ brings Coherence data grid’s data scalability, availability, reliability, and performance to inmemory session management and storage.
/ can be deployed to many mainstream application servers such as Oracle GlassFish Server,
Oracle WebLogic Server, IBM WebSphere, Tomcat, and so on
* Coherence*Web enables HTTP session sharing and management across different Web
applications, domains, and heterogeneous application servers. Session data can be stored in data
caches outside of the application server, thus freeing application server heap space and enabling
server restarts without losing session data.
Incorrect:
A: No such thing Oracle Web Grid
C: Grid Edition licensing includes the unlimited use of Real Time Clients which may be of the
following two types:
Real Time Cluster Member Client
Real Time Extend/TCP Client
Reference: Oracle Coherence User’s Guide for Oracle Coherence*Web
So, it’s E
yeah I think its E, many other answers are also wrong you should verify them b4 appearing.
Why cab’t ‘B’ a right option. Question talk about availability and predictibility.
Activecache is internal component which does the same, details are here http://docs.oracle.com/cd/E17904_01/web.1111/e16517/cases.htm#COHWL111
The last option ‘E’ named differently in option, it is stated as “Coherence Web Edition” however the actual technology named as “Coherence*Web” that why I am rejecting this option.
B is the correct answer.
http://docs.oracle.com/cd/E17904_01/web.1111/e16517/cases.htm#COHWL111
Active Cache B
https://blogs.oracle.com/felcey/entry/using_weblogic_server_activecache_for
quote:
. Weblogic Server (WLS) now has a range of features, collectively called “ActiveCache”, that provides Coherence cache integration in a Java Servlet context
B – Active cache is correct
TopLink Grid’s relational-to-object mapping capabilities allow ActiveCache to cache relational data. You can store copies of database queries and result sets in Coherence data caches. With this feature, database access occurs only when no cached copy of the required data exists, or when the application performs a create, update, or delete operation that must be persisted to the database. This added optimization provides improved scalability and performance to the system.