Your company provides a marketplace for industrial chemicals. You are required to offer accurate pricing and quantities to all marketplace users.
Marketplace users are globally distributed.
What is the most appropriate technology to use to satisfy this requirement?
Your company has decided to expose a set of business operations through an API so that clients can access them remotely. These operations, which are modeled as methods on a stateless session bean component, act as building blocks for complex state-changing activities that need to possess atomicity,, consistency, isolation and durability (ACID) semantics.
Select the best technology to implement the API.
Which two statements are true about delegation as an Object-Oriented Design technique?
Which three actions restrict the ability of a web application to scale in response to load
as additional computing resources are made available to it?
The integration team has reported a problem in testing a few deployed MDBs. By design, each MDB listens to one of four named queues. Two producers write messages to each queue. The test issues messages of the same payload type that each producer will send, but varies the number or size of these messages to measure the messaging server’s performance.
The team has noticed that the utilization remains at the same high rate any time the test writes messages destined for the third MDB. The message server log does not reveal any failure in sending messages to this MDB. Which anticipation expresses cause for this condition?
Which two statements describe the contact between an Enterprise JavaBeans (EJB) container and the EJBs that it hosts?
You are using an open source integration framework in your project. However, key interfaces do not explicitly define several strange conditions you have repeatedly seen while testing.
Which option is the name given to the anti pattern described above?
An investment company has purchased a number of small online business referral systems that appeal to various niche demographics. The company wants to bring these networks together in hopes of finding a broad, single theme and brand image for these groups before they can do that, they need to get the users communicating with outside their current networks.
Which Web Services pattern would you recommend they consider in building a scheme to accommodate this communication?