[Free] 2019(Nov) EnsurePass Microsoft 70-486 Dumps with VCE and PDF 41-50

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Question No.83

DRAG DROP

You are developing an ASP.NET MVC application. The application has a view that displays a list of orders in a multi-select list box.

You need to enable users to select multiple orders and submit them for processing. What should you do?

To answer, drag the appropriate words to the correct targets. Each word may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

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Correct Answer:

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Question No.84

DRAG DROP

You are developing an ASP.NET MVC application.

Before an action is executed, information about the action must be written to a log. After results are returned, information about the results also must be written to the log.

You need to log the actions and results. You have the following code:

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Which code segments should you include in Target 1, Target 2 and Target 3 to implement the LogActionFilter class?

To answer, drag the appropriate code segments to the correct targets. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

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Correct Answer:

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Question No.85

You are developing an ASP.NET MVC application.

The application provides a RESTful API for third-party applications. This API updates the information for a contact by embedding the information in the URL of an HTTP POST.

You need to save the Contact type when third-party applications use the EditContact method. Which code segment should you use? (Each correct answer presents a complete solution.

Choose all that apply.)

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Correct Answer: BC

Explanation:

Basics of RESTful services:

REST stands for Representational State Transfer, it is a simple stateless architecture that runs over HTTP where each unique URL is representation of some resource. There are four basic design principles which should be followed when creating RESTful service:

Use HTTP methods (verbs) explicitly and in consistent way to interact with resources (Uniform Interface), i.e. to retrieve a resource use GET, to create a resource use POST, to update a resource use PUT/PATCH, and to remove a resource use DELETE.

Etc.

Question No.86

HOTSPOT

You are optimizing an Internet-facing website for search engine optimization.

You are reading a Site Analysis Report from the SEO Toolkit. The report returns warnings that indicate the website HTML lacks key information necessary for search engine indexing.

You need to improve the optimization of the site. What should you do?

To answer, select the appropriate option from the drop-down list in the answer area.

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Correct Answer:

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Question No.87

You are designing a data-oriented application that features a variety of storage schemas. The application object model must be mapped to the various storage schemas. You need to enable developers to manipulate the data. Which ADO.NET data access strategy should you use? (Each correct answer presents a complete solution. Choose all that apply.)

  1. LINQ to SQL

  2. Entity Framework

  3. DataAdapter

  4. DataReader

Correct Answer: ABC

Question No.88

You are developing an ASP.NET MVC application that provides instant messaging capabilities to customers.

You have the following requirements:

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Messages must be able to be sent and received simultaneously. Latency and unnecessary header data must be eliminated.

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The application must comply with HTML5 standards.

You need to design the application to meet the requirements. What should you do?

  1. Configure polling from the browser.

  2. Implement long-running HTTP requests.

  3. Implement WebSockets protocol on the client and the server.

  4. Instantiate a MessageChannel object on the client.

Correct Answer: D

Question No.89

You are developing an ASP.NET MVC application that uses forms authentication to verify that the user is logged in. Authentication credentials must be encrypted and secure so no user identity is exposed. You need to ensure that user credentials are persisted after users log on. Where should you store the credentials? (Each correct answer presents a complete solution. Choose all that apply.)

  1. In Session on the server

  2. In a cookie stored in the browser

  3. In ViewData in the application

  4. In TempData on the server

Correct Answer: AB

Question No.90

You are developing an ASP.NET MVC application that uses forms authentication. The application uses SQL queries that display customer order data. Logs show there have been several

malicious attacks against the servers. You need to prevent all SQL injection attacks from malicious users against the application. How should you secure the queries?

  1. Check the input against patterns seen in the logs and other records.

  2. Escape single quotes and apostrophes on all string-based input parameters.

  3. Implement parameterization of all input strings.

  4. Filter out prohibited words in the input submitted by the users.

Correct Answer: C

Explanation:

SQL Injection Prevention, Defense Option 1: Prepared Statements (Parameterized Queries)

The use of prepared statements (aka parameterized queries) is how all developers should first be taught how to write database queries. They are simple to write, and easier to understand than dynamic queries. Parameterized queries force the developer to first define all the SQL code, and then pass in each parameter to the query later. This coding style allows the database to distinguish between code and data, regardless of what user input is supplied.

Prepared statements ensure that an attacker is not able to change the intent of a query, even if SQL commands are inserted by an attacker.

Reference:

SQL Injection Prevention Cheat Sheet

Question No.91

You are developing an ASP.NET MVC application that uses forms authentication against a third- party database.

You need to authenticate the users. Which code segment should you use?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Correct Answer: D

Explanation:

ASP.NET membership is designed to enable you to easily use a number of different membership providers for your ASP.NET applications.

There are two primary reasons for creating a custom membership provider.

You need to store membership information in a data source that is not supported by the membership providers included with the .NET Framework, such as a FoxPro database, an Oracle database, or other data sources.

You need to manage membership information using a database schema that is different from the database schema used by the providers that ship with the .NET Framework.

To implement a membership provider, you create a class that inherits the MembershipProvider abstract class from the System.Web.Security namespace.

Incorrect:

Not C: Class ProviderBase

The provider model is intended to encapsulate all or part of the functionality of multiple ASP.NET features, such as membership, profiles, and protected configuration.

References: https://msdn.microsoft.com/en-us/library/f1kyba5e.aspx

Question No.92

You are designing an enterprise-level Windows Communication Foundation (WCF) application. User accounts will migrate from the existing system. The new system must be able to scale to accommodate the increasing load. You need to ensure that the application can handle large- scale role changes. What should you use for authorization? (Each correct answer presents a complete solution. Choose all that apply.)

  1. Resource-based trusted subsystem model

  2. Identity-based approach

  3. Role-based approach

  4. Resource-based impersonation/delegation model

Correct Answer: BC

Explanation:

Advanced Maturity: Authorization as a Service In the advanced level of maturity for authorization, role storage and management is consolidated and authorization itself is a service available to any solution that is service- enabled.

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The Trusted Subsystems Model

Once authorization is available as an autonomous service, the need for impersonation is eliminated. Instead of assuming the identity of the user, the application uses its own credentials to access services and resources, but it captures the user#39;s identity and passes it as a parameter (or token) to be used for authorization when a request is made. This model is referred to as the trusted subsystem model, because the application acts as a trusted subsystem within the security domain.

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