单选题Company.com has a database application and a Web server application running on the same p5-570 server in a single partition. Recently there have been a number of instances where the increased load on the database server has impacted the performance of 

第1题：

Which components are installed on the middle tier in a WebSphere Commerce V 5.6 three-tier configuration （i.e. in a three-node topology）？（）

• A、WebSphere Commerce Server， WebSphere Application Server and Web server plugin
• B、WebSphere Application Server， Database Client and Web server plugin
• C、WebSphere Commerce Server， Database Server and WebSphere Application Server
• D、WebSphere Commerce Server， WebSphere Application Server and Database Client
• E、Web server， WebSphere Commerce Server and WebSphere Application Server

第2题：

A technical specialist has a requirement to implement a 4-way POWER5 server with a small Web server partition and a high performance database server partition. The Web server provides a client front-end to the database server. The most important concerns are speed of communication between the Web server and the database and I/O speed of the database. Which of the following virtualization features would be most appropriate？（）

• A、Virtual SCSI
• B、Virtual Ethernet
• C、Virtual I/O Server
• D、Micro-Partitioning

第3题：

In a single-tier environment running WebSphere Commerce V5.6 Professional Edition， traffic has increased significantly over the last month.  It has been determined that load has increased throughout the system. Which is the BEST change to provide the largest increase in performance？（）

• A、Upgrade to WebSphere Commerce V5.6 Business Edition
• B、Create a two-tier environment by moving the database server to a new node
• C、Create a demilitarized zone （DMZ） between two firewalls
• D、Compile all the store JPSs
• E、Disable all caching of JSPs

第4题：

A user has an application server LPAR with a physical Ethernet adapter. They want to have a database LPAR also connected to the application LPAR via virtual Ethernet. Their security policies require a firewall between the application LPAR and database LPAR. Which of the following virtual Ethernet configurations satisfies the customer’s requirements？（）

• A、The application server，firewall，and database server on the same VLAN
• B、The application server and firewall on one VLAN，and the database server on a second VLAN
• C、The application server on one VLAN，and the database server and firewall on a second VLAN
• D、The application server and firewall on one VLAN，and the firewall and database server on a second VLAN

第5题：

ompany.com has a Micro-Partitioned p5-570 4-way with six application partitions and two VIO servers. Each VIO server has been allocated 0.5 CPU and the application servers have been allocated 0.4 CPUs. The marketing department wants to deploy a new Web server to support the release of a product. The systems architect has recommended that the Web server will require a whole CPU. Which of the following should the technical specialist suggest to provide the most cost-effective deployment？（）

• A、Remove one application server partition and apply its CPU resources to the Web server.
• B、Reassign the CPU from one of the VIO servers and create the new partition.
• C、Add 0.6 CPU to one of the application servers and run the Web service with the application. 
• D、Reassign a total of 0.4 CPUs from the application servers and create a new partition with awhole CPU for new deployment.

第6题：

A Windows Azure application connects to a SQL Azure database.  The database size has increased significantly.   Some queries in the application no longer complete.   You need to recommend an approach for identifying queries that do not complete.  What should you recommend？（）

• A、 Use the SQL Server Profiler to capture all SQL activities.
• B、 Use a Dynamic Management View to analyze performance.
• C、 Use the Database Engine Tuning Advisor to analyze the workload.
• D、 Use Microsoft SQL Server Management Studio to analyze the SQL logs.

第7题：

WebSphere Commerce has been successfully installed and tested.  WebSphere Commerce Analyzer has been installed and the extraction programs have run with no errors but there is no data in any reports when viewed from the WebSphere Commerce Accelerator.  What could be the cause of this problem？（）

• A、The WebSphere Commerce application server was not started
• B、The web server was not started
• C、SSL has not been configured on the web server
• D、The appropriate listeners were not enabled in Configuration Manager
• E、The database server was not started

第8题：

When WebSphere Commerce， WebSphere Application Server， the web server and the database server are all located on a single machine， which of the following statements are TRUE？ （）

• A、this is a multi-node installation
• B、this is a single node installation.
• C、each hardware and software component is a single point of failure.
• D、this is an example of load balancing.

第9题：

Company.com has a database application and a Web server application running on the same p5-570 server in a single partition. Recently there have been a number of instances where the increased load on the database server has impacted the performance of the Web server. What can the technical specialist recommend to keep the database application from impacting the performance of the Web server？（）

• A、Create a VLAN between the web server and database server.
• B、Purchase APV and install the VIOS.
• C、Increase the priority of the Web server.
• D、Create separate LPARs for Web and database workloads.

第10题：

Company.com has decided to use the FUBAR Application Server to host their web application. Unfortunately， the FUBAR Application Server uses the server machine’s file system for its JNDI namespace. Every JNDI lookup performed in the web application is translated into a file 1/0 operation， which results in very poor performance.  Which J2EE pattern can help with this performance issue？（）

• A、 Transfer Object
• B、 Service Locator
• C、 Intercepting Filter
• D、 Model-View-Controller