Software Development Fundamentals

 

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 completed concurrently with other transactions

 

Correct Answer: B

Explanation:

The benefit of using a transaction when updating multiple tables is that the update succeeds or fails as a unit.

 

 

QUESTION 152

A data warehouse database is designed to:

 

A.

Require validation of incoming data during real-time business transactions.

B.

Enable business decisions by collecting, consolidating, and organizing data.

C.

Support real-time business operations.

D.

Support a large number of concurrent users.

 

Correct Answer: B

 

 

QUESTION 153

How should you configure an application to consume a Web service?

 

A.

Add the Web service to the development computer.

B.

Add a reference to the application in the Web service.

C.

Add a reference to the Web service in the application.

D.

Add the Web service code to the application.

 

Correct Answer: C

Explanation:

Start by adding a Service Reference to the project. Right-click the ConsoleApplication1 project and choose “Add Service Reference”:

 

 

 

 

QUESTION 154

Which of the following must exist to inherit attributes from a particular class?

 

A.

Public properties

B.

A has-a relationship

C.

Static members

D.

An is-a relationship

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Correct Answer: A

Explanation:

There must be some public properties that can be inherited.

 

 

QUESTION 155

You need to create an application that processes data on a last-in, first-out (LIFO) basis. Which data structure should you use?

 

A.

Stack

B.

Array

C.

Tree

D.

Queue

 

Correct Answer: A

Explanation:

A stack implements LIFO.

 

 

QUESTION 156

In the application life cycle, the revision of an application after it has been deployed is referred to as:

 

A.

Monitoring

B.

Maintenance

C.

Unit testing

D.

Integration


 

Correct Answer: B

 

 

QUESTION 157

All objects in .NET inherit from which item?

 

A.

a reference type

B.

the System.Type class

C.

a value type

D.

the System.Object class

 

Correct Answer: D

Explanation:

The System.Object class supports all classes in the .NET Framework class hierarchy and provides low-level services to derived classes. This is the ultimate base class of all classes in the .NET Framework; it is the root of the type hierarchy.

 

QUESTION 158

You are writing a Web application that processes room reservation requests. You need to verify that the room that a guest has selected is not already reserved by another guest.

 

Which type of programming should you use to determine whether the room is still available when the request is made?

 

A.

functional

B.

in-browser

C.

dynamic

D.

server-side

 

Correct Answer: D

 

 

QUESTION 159

In your student directory database, the Students table contains the following fields:

 

firstName

 

lastName

 

emailAddress

 

telephoneNumber

 

You need to retrieve the data from the firstName, lastName, and emailAddress fields for all students listed in the directory. The results must be in alphabetical order according to lastName and then firstName.

 

Which statement should you use?

 

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A.

Option A

B.

Option B

C.

Option C

D.

Option D

 

Correct Answer: D

Explanation:

to sort use: ORDER BY LastName, FirstName

 

 

QUESTION 160

HOTSPOT

You are creating a Windows Store application that uses the following gesture:

 

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Use the drop-down menus to select the answer choice that completes each statement. Each correct selection is worth one point.

 

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Correct Answer:

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