Free IT Certifications Dumps Download

QUESTION 141 HOTSPOT You are reviewing the following class that is used to manage the results of a 5K race:     For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.     Correct Answer:     QUESTION 142 HOTSPOT For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.     Correct Answer:     QUESTION 143 This question Read more [...]

QUESTION 181 You need to ensure the data integrity of a database by resolving insertion, update, and deletion anomalies. Which term is used to describe this process in relational database design?   A. Normalization B. Integration C. Isolation D. Resolution   Correct Answer: A Explanation: Database normalization is the process of organizing the fields and tables of a relational database to minimize redundancy. Normalization usually involves dividing large tables into smaller Read more [...]

QUESTION 161 You are creating an application that presents the user with a Windows Form. Which event is triggered each time the Windows Form receives focus?   A. Load B. Enter C. Activated D. paint   Correct Answer: B Explanation: When you change the focus by using the mouse or by calling the Focus method, focus events of the Control class occur in the following order:   Enter GotFocus LostFocus Leave Validating Validated     QUESTION 162 This question requires Read more [...]

QUESTION 171 You have a website that includes a form for usemame and password.   You need to ensure that users enter their username and password. The validation must work in all browsers.   Where should you put the validation control?   A. in the Web.config file B. in the server-side code only C. in the client-side code only D. in both the client-side code and the server-side code   Correct Answer: D Explanation: From version 2.0 on, ASP.NET recognized the JavaScript Read more [...]

QUESTION 151 This question requires that you evaluate the underlined text to determine if it is correct.   The benefit of using a transaction when updating multiple tables is that the update cannot fail.   Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed" if the underlined text makes the statement correct.   A. No change is needed B. succeeds or fails as a unit C. finishes as quickly as possible D. can be Read more [...]

QUESTION 131 You need to allow a consumer of a class to modify a private data member. What should you do?   A. Assign a value directly to the data member. B. Provide a private function that assigns a value to the data member. C. Provide a public function that assigns a value to the data member. D. Create global variables in the class.   Correct Answer: C Explanation: In this example (see below), the Employee class contains two private data members, name and salary. As private Read more [...]

QUESTION 121 Which language uses Data Definition Language (DDL) and Data Manipulation Language (DML)?   A. SQL B. C++ C. Pascal D. Java   Correct Answer: A Explanation: SQL uses DDL and DML.     QUESTION 122 Which language was designed for the primary purpose of querying data, modifying data, and managing databases in a Relational Database Management System?   A. Java B. SQL C. C++ D. Visual Basic   Correct Answer: B Explanation: SQL is a Read more [...]

QUESTION 111 This question requires that you evaluate the underlined text to determine if it is correct.   When creating a site to utilize message queuing, the "IP address" must be configured to MSMQ.   Select the correct answer if the underlined text does not make the statement correct. Select "No change is needed'' if the underlined text makes the statement correct.   A. No change is needed B. protocol C. host header D. port   Correct Answer: B Explanation: MSMQ Read more [...]

QUESTION 101 An application presents the user with a graphical interface. The interface includes buttons that the user clicks to perform tasks. Each time the user clicks a button, a method is called that corresponds to that button.   Which term is used to describe this programming model?   A. Functional B. Service oriented C. Structured D. Event driven   Correct Answer: D     QUESTION 102 This question requires that you evaluate the underlined text to determine Read more [...]

QUESTION 91 When a web service is referenced from a client application in Microsoft Visual Studio, which two items are created? (Choose two.)   A. a stub B. a.wsdl file C. a proxy D. a .disco file   Correct Answer: BD Explanation: A .wsdl file that references the Web service is created, together with supporting files, such as discovery (.disco and .discomap) files, that include information about where the Web service is located.     QUESTION 92 You need to evaluate Read more [...]

QUESTION 81 You have a server that limits the number of data connections. What should you use to optimize connectivity when the number of users exceeds the number of available connections?   A. Connection timeouts B. Named pipes C. Normalization D. Connection pooling   Correct Answer: D Explanation: In software engineering, a connection pool is a cache of database connections maintained so that the connections can be reused when future requests to the database are required. Read more [...]

QUESTION 71 The purpose of the Finally section in an exception handler is to:   A. Execute code regardless of whether an exception is thrown. B. Conclude the execution of the application. C. Execute code only when an exception is thrown. D. Break out of the error handler.   Correct Answer: A Explanation: By using a finally block, you can clean up any resources that are allocated in a try block, and you can run code even if an exception occurs in the try block. Typically, the Read more [...]