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Which new key architectural element introduced in WebLogic Server l2c should you take
advantage of when designing Disaster Recovery Centers with active - passive mode?
A.
MAN Clusters, because they would allow you to synchronously replicate state in low
latency networks
B.
WAN Clusters, because they would allow you to asynchronously replicate state in
nonlow latency networks.
C.
Transaction Log in the database, because you could avoid synchronizing two replication
technologies (database and file)
D.
Data Guard, because it is the most effective way to replicate a state across locations
E.
GoldenGate, because it is the most effective way to replicate a state across locations
GoldenGate, because it is the most effective way to replicate a state across locations
Oracle GoldenGate
Oracle GoldenGate is Oracle’s strategic product for data distribution and data integration. It
is a highperformance software application that uses log-based bidirectional data replication
for real-time capture, transformation, routing, and delivery of database transactions across
heterogeneous systems.
Note:
* Oracle Active Data Guard
Oracle Active Data Guard 11g is an option of Oracle Database Enterprise Edition that
extends basic Data Guard functionality. It allows a physical standby database to be open
as read-only while changes are applied to it from the primary database. This increases
performance and return on investment by offloading ad-hoc queries, Web-based access,
reporting, and backups from the primary database while also providing disaster protection.
* Disaster recovery (DR) procedures ensure rapid recovery or continuation of a technology
infrastructure after a natural or human-induced disaster. Oracle WebLogic Server 12c
supports
advanced disaster recovery and business continuity. Organizations can store transaction
logs in an Oracle database instead of a file system, providing a highly available storage
mechanism to improve the speed and reliability of disaster recovery operations. This
permits them to utilize Oracle Active Data Guard or Oracle GoldenGate replication
technology to move DR state information across data centers. Oracle’s enhanced DR
architecture enables more effective recovery scenarios. Support for Oracle Exalogic and
Oracle Exadata engineered systems ensures tremendous scalability for IT operations of
any size.
* Oracle WebLogic Server 12c places transaction logs on the database tier to improve the
speed, reliability and availability of disaster recovery operations.
Which three JVM options would you add to investigate performance issues in a Hot-Spot
JVM?
A.
xx:+PrintGCDetails
B.
xx:+PrintGCTimeStamps
C.
xx:+HandlePromotionFailure
D.
verbose:gc
E.
server
xx:+PrintGCDetails
xx:+PrintGCTimeStamps
verbose:gc
http://docs.oracle.com/cd/E24329_01/web.1211/e24390/jvm_tuning.htm#i1131863
You want to create a WebLogic domain in a production environment. Which three actions
should you perform?
A.
Use a multinode WebLogic domain.
B.
Use a single-node WebLogic domain.
C.
Use clusters.
D.
Refrain from using clusters.
E.
Install WeLogic in production mode with CA signed certificates.
Use a multinode WebLogic domain.
Use clusters.
Install WeLogic in production mode with CA signed certificates.
Use multi-node and clustering to get performance suitable for a product
environment.
A customer stores environmental settings in the deployment descriptors of an application.
Whenever they promote the application version from testing to the production environment,
they need to open the archive and modify the deployment descriptor. This process is
against their security policy.
What approach should you recommend to leverage WebLogic features such that they do
not have to modify the application archive for different environments?
A.
Keep environmental data in the global settings of domain and the application can read it
from the domain where it runs.
B.
Keep environmental data in Deployment Plan XML files. It allows you to change
parameters in the deployment descriptor without opening the archive file.
C.
Keep environmental data in the database because it is the most effective way of
parametrizing the environment.
D.
Keep archive in exploded format so the customer does not have to open the archive
files.
E.
Eliminate all environmental settings from the application. There should not to be any
environmental settings in the application.
Keep environmental data in Deployment Plan XML files. It allows you to change
parameters in the deployment descriptor without opening the archive file.
WebLogic Server uses the standard J2EE web.xml deployment descriptor for
defining a Web Application. Some applications also require the WebLogic-specific
deployment descriptor, weblogic.xml. You use these deployment descriptors to define
components and operating parameters for a Web Application. Deployment descriptors are
standard text files, formatted using XML notation. You package them in the Web
Application.
Reference: Overview of Web Application Deployment Descriptors
Identify three unique integration features of Spring and WebLogic Server.
A.
ability to automatically convert Spring application to JavaEE 6 framework
B.
ability to export the WebLogic Container feature to another Spring enabled JavaEE
server.
C.
ability to extend the WebLogic Server console with some Spring-related pages
D.
official support of Spring apps inside WebLogic by Oracle Support
E.
support for injection of WebLogic MBeans and Resources into Spring applications
ability to extend the WebLogic Server console with some Spring-related pages
official support of Spring apps inside WebLogic by Oracle Support
support for injection of WebLogic MBeans and Resources into Spring applications
Spring Console Extension. WebLogic provides an Admin Console
extension for Spring to provide administrators with visual tools for monitoring the Spring
parts of deployed applications (first navigate to WebLogic Admin Console's Preferences |
Extension menu option and and enable spring-console). This Spring console extension is
basically a set of pages which are added amongst the normal pages of the standard
WebLogic admin console, rather than being a separate console per se. The extension
provides a view onto the values of the WebLogic generated Spring MBeans
D: If you have an issue, you use the Oracle Support organisation for help with WebLogic
specific problems and any Spring parts to your application are treated just like your own
custom code is, from an Oracle Support perspective.
E: WebLogic Injected Spring Beans is a Weblogic feature that is enabled by default.
Reference: WebLogic and Spring
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