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Sun 310-051: Sun Certified Enterprise Architect for J2EE Technology

#1. Your company's employee assistance program (EAP) application is now required to be deployed on the Web.
The following are characteristics and requirements of the new system:
* The UI is an off-the-shelf, unsigned terminal-emulator applet.
* The applet communicates with a terminal server using a proprietary TCP/IP-based protocol.
* The terminal server sits behind the corporate firewall and listens on port 10001.
* The only configurable items for the applet are the host IP and port of the terminal server.
* You company's firewall only allows traffic through on port 80 for HTTP and port 443 for HTTPS.
Problem: The applet is unable to communicate through the firewall.
Which two statements about this architecture are false? (Choose two)

#2. Exhibit:

The current architecture consists of one Web server, three application servers, and a database. The new architecture will add more Web servers. Which two statements about the new architecture are false? (Choose two)

#3. Which two improve software maintainability? (Choose two)

#4. Exhibit:

In the exhibit, what is the relationship between A and C?

#5. Exhibit:

Which two statements about the exhibit are true? (Choose two)

#6. Exhibit:

The exhibit shows the communication between four EJBs.
Which change to the existing architecture helps increase performance?

#7. Your supply chain software currently runs a standalone application which communicates to the backend services using IIOP.
The new requirements for the software are:
* The client software must run as an applet.
* The user's firewall will only allow port 80 and 443 traffic through its firewall.
* All the backend services will be CORBA-based.
* A Web server sits in front of the COBRA services.
* The backend Web server runs on port 80 and 443.
Which two solutions support the new requirements? (Choose two)

#8. Exhibit: