QUESTION: 8
A successful web application is used by over two hundred thousand users. Due to this
substantial load, the database is over bridged and fails frequently. Al data, included critical user
records and temporary session data, is stored in the database. Because of resource constraints,
a new database system cannot be installed.
Which change will reduce the load on the database?

A. Creating more entity beans to optimize interaction wild the database
B. Refactoring the web application to use DAOs to communicate with the database
C. Refactoring the web application to store temporary session data on the web servers
D. Adding more web servers to the web tier to distribute the load and reduce the number of
transactions on the database.
Answer(s): C
QUESTION: 9
MedLabML is a startup firm that moves patient data between different care providers to provide
a "single patient view". They use a B2B system to exchange electronic business document with
their key suppliers. They are seeking your advice about standards to review for improving their
message-level security.
Which standard or API would you recommend they read?

A. SAML 1.1
B. Web Service Interoperability Technology
C. XML Signature
D. SSL
Answer(s): B
QUESTION: 10
You have been tasked with improving the availability of an existing three tier application.
What is your first stop in evaluating what changes should be made to the architecture to achieve
the goal?

A. Monitor network traffic between tiers.
B. Separate presentation from business logic.
C. Identify and document all single points of failure.
D. Cluster the presentation tier without session replication.
Answer(s): C
QUESTION: 11
While analyzing an existing web application, you observe the following issues in the source
code:
Duplicate control code is scattered throughout various view.
Business and presentation logic are mixed within these view.

4

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