The application workload on your database is same between 10 a.m. and 11 a.m. on weekdays. Suddenly you observe poor performance between 10 a.m. and 11 a.m. in the middle of the week. How would you identify the changes in configuration settings， workload 

第1题：

You work as an application developer at Certkiller .com. Certkiller .com has asked you to develop an application that monitors and controls the activities of a Windows service.You need to use the appropriate class to meet Certkiller .com’s requirements. What should you do？（）

• A、 Use the ServiceBase class.
• B、 Use the ServiceInstaller class.
• C、 Use the ServiceManager class.
• D、 Use the ServiceController class.

第2题：

Application A is designed to execute the following SQL statements within a single Unit of Work (UOW). UPDATE employee SET salary = salary * 1.1 WHERE empno='000010' UPDATE department SET deptname = 'NEW dept' WHERE deptno='A00'Application B is designed to execute the following SQL statements within a single Unit of Work (UOW). UPDATE department SET deptname = 'OLD DEPT' WHERE deptno='A00' UPDATE employee SET salary = salary * 0.5 WHERE empno='000010' Application A and application B execute their first SQL statement at the same time. When application A and application B try to execute their second SQL statement, a deadlock occurs. What will happen?（）

• A、The database manager will rollback the transaction in both applications.
• B、The database manager will rollback the transaction in one of the two applications.
• C、Application B will successfully update the EMPLOYEE and DEPARTMENT tables; Application A will be placed in a lock wait state.
• D、Application A will successfully update the EMPLOYEE and DEPARTMENT tables; Application B will terminate when the lock timeout value is reached.

第3题：

Company.com has installed HACMP and is configuring a three-node cluster. One of the Applications  uses the AIX hostname as a key for authorization to execute on the specific computer. The application vendor was contacted and consented to having multiple copies of the application but required that only one application be active at any one point in time.  How can the AIX host name dependency be managed in an HACMP environment.（）  

• A、 It cannot be managed because the application will not work properly with HACMP.
• B、 The application start and stop script for the application can manage the hostname.
• C、 HACMP will require customization to correctly manage a change in the hostname since it is tied to the primary network adapter.
• D、 HACMP will have to be restarted if the hostname is changed. This can be done with customization in the node_up and node_down event scripts.

第4题：

Which of the following is a feature of a unit of work?（）

• A、It applies to a single data server.
• B、It is a recoverable sequence of operations.
• C、Its value can be queried from the system catalog tables.
• D、It begins when the application connects to the data server.

第5题：

You work as an application developer at Certkiller .com. You are required to dynamically load assemblies into an application domain. You are using the Load method of the AppDomain class. What types of files can you this use method for？（）

• A、 Library application files （.dll）.
• B、 All assembly files， no matter what there file extensions are.
• C、 Application configuration files （.config）.
• D、 Standalone application files （.exe）.

第6题：

You work as an application developer at Cer-Tech.com.You are in the process of creating an application for Cert-Tech.com’s Human Resources department that tracks employee benefits You have to store current employee data without recompiling the application. You elect to store this employee data as a custom section in the application configuration file. The relevant portion of the application configuration file is shown in the following exhibit： What should you do？（）

• A、 Create a custom section handler class that inherits the ConfigurationSection interface
• B、 Add a section element to the EmployeeSection element of the application configuration file
• C、 Create a custom section handler class that implements the IConfigurationSectionHandler interface.
• D、 Add an EmployeeSection element to the configSections element of the application confguration file
• E、 Create a custom section handler class that implements the IApplicationSettingsProvider interface
• F、 Add a section element to the configSections element of the application configuration file

第7题：

第8题：

第9题：

第10题：

第11题：

第12题：

第13题：

Which of the following is TRUE for the DB2 isolation level Cursor Stability (CS)?（）

• A、An application process acquires at least a share lock on the current row of every cursor.
• B、Any row that is read during a unit of work cannot be changed by other application processes until the unit of work is complete.
• C、Any row changed by another application process can be read, even if the change has not been committed by that application process.
• D、An application process that issues the same query more than once in a unit of work will not see additional rows caused by other application processes appending new information to the database.

第14题：

If an application issues the same query more than once in the same Unit of Work, which isolation level will not permit this application to see additional rows inserted by other applications?（）

• A、Read Stability (RS)
• B、Repeatable Read (RR)
• C、Uncommitted Read (UR)
• D、Cursor Stability (CS)

第15题：

A batch application executes a large number of update statements. The service level agreement for the application states that the application must complete its work as quickly as possible to ensure that dependent workloads can start ontime. What is one way to help the application complete quickly?（）

• A、Code the application to issue a LOCK TABLE statement.  
• B、Code the application to issue a LOCK ROW statement.  
• C、Decrease the number of I/O servers.  
• D、Increase the locklist parameter. 

第16题：

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. The instance has databases for a finance application and a manufacturing application. You want to put some limitation on the maximum CPU query time allowed by the applications, so you configure the Resource Governor to achieve this. But you notice that certain reports do not execute successfully any longer on the manufacturing application. You have to allow the manufacturing application to consume more CPU time, so you have to change the Resource Governor configuration.  Which Resource Governor component should you configure?（）  

• A、The workload group which is used by default 
• B、The workload group which is used by the finance application 
• C、The classifier function which identifies the finance application 
• D、The workload group which is used by the manufacturing application 

第17题：

You work as an application developer at Certkiller .com. You are currently in theprocess of reviewing an application that was created by a fellow developer.The application that you are reviewing includes a declaration for a collection named EmployeeList， which stores Employee objects. The declaration is shown below： public class EmployeeList ： Enumerator， IEnumerable { // Class implementation } You require the ability to iterate through the EmployeeList with minimum development effort.What should you do？（）

• A、 Utilize the switch statement
• B、 Utilize the dowhile statement
• C、 Utilize the foreach statement
• D、 Utilize the if statement

第18题：

第19题：

第20题：

第21题：

第22题：

第23题：

第24题：