Online Access Free 1Z0-807 Practice Test

Which two actions limit the consequences of a network based attack?

• A.Implementing the principle of least privilege
• B.Installing a firewall at the outer boundary of your systems
• C.Deploying a single sign-on system to provide system-wide authorization
• D.Placing Internet-accessible servers in a demilitarized zone
• E.Allowing application servers privileged access to all databases

A Hot Potato anti pattern can arise from misuse of which technology combination?

• A.Bean Validation with JSF Managed Beans
• B.JPA with the Web Tier
• C.JNDI Lookups with Global Java Naming
• D.Messagingin the Business Tier

ABC Travel offers a night reservation service, exposed as a web service. XYZ Stays offers a hotel reservation service, also exposed as a web service. ABC and XYZ will not change their web service. A startup company has contacted you for advice about designing a new service that combines flight and hotel reservations, which they will offer as a web service.
The startup company plans to provide their service by implementing a portable Java EE solution that aggregates the two services offered by ABC Travel and XYZ Stays, a combined reservation succeeded Only if both the flight reservation and the hotel reservation succeed.
Which is the most effective way to meet the business requirement?

• A.The startup company cannot implement their new service as a web service, but must use an enterprise JavaBean (EJB) component to gain transaction propagation.
• B.The startup company can implement their new service as a web service by calling the two existing services in a single transaction, relying on transaction propagation to support this business rule.
• C.The startup company should implement their new service as a web service that uses an XA transaction manager.
• D.The startup company should implement their new service as aweb service by calling the two existing services, and implementing their owncompensating transaction.

Your CMC wants to move several web based search applications to an AJAX model, hoping to improve user engagement with a browser experience that feels smaller and more responsive.
Which identifies a drawback to consider when adopting an AJAX model to improve user experience?

• A.Maintaining page navigability for users would have to be re-evaluated.
• B.Maintaining current performance could require more hardware.
• C.Maintaining a scalable system could require redesigning applications.
• D.Maintaining securitywithin the page could be more difficult.
• E.Maintaining accessibility across clients may require more development.

You are the architect of a JEE-based product that customers can configure to meet their own security requirements. You want to enforce basic without sacrificing customers ability to customize the product.
Which is the best method to support both requirements?

• A.Build a custom security service to handle authorization
• B.Define base roles and users programmatically
• C.Define base roles and users declaratively
• D.Customize the JRE sandbox model by using local variables