Enlightened .Net Developer Assessment
This. Net knowledge assessment is used by Enlightened's Talent Acquisition Management team as one tool in evaluating your compatibility with our development team.
Thank you for your time in completing the assessment.
Questions and Answers
- 1.
When an exception occurs, the remainder of the code in the ____ block is skipped
- A.
Try
- B.
Catch
- C.
Finally
- D.
Exception
Correct Answer
A. TryExplanation
When an exception occurs, the remainder of the code in the try block is skipped. The try block is used to enclose the code that might throw an exception. If an exception is thrown within the try block, the control is transferred to the corresponding catch block. Therefore, any code after the point where the exception is thrown will not be executed unless it is within a catch or finally block.Rate this question:
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- 2.
What are the different ways to overload a method? (There may be multiple answers)
- A.
Different parameter names
- B.
Different parameter data types
- C.
Different number of parameters
- D.
Different ordering of parameters
- E.
Changing the method name
Correct Answer(s)
B. Different parameter data types
C. Different number of parameters
D. Different ordering of parametersExplanation
The different ways to overload a method include using different parameter data types, different number of parameters, and different ordering of parameters. By using different parameter data types, the method can be called with different types of arguments. By using a different number of parameters, the method can be called with a different number of arguments. By using a different ordering of parameters, the method can be called with the parameters in a different order. These techniques allow for flexibility and versatility in method usage.Rate this question:
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- 3.
When customErrors mode is set to Off, which of the following happens when an error occurs:
- A.
All visitors see the custom error page
- B.
All visitors see the full error details
- C.
Local users get full error details, while remote users get custom errors
- D.
The program crashes
Correct Answer
B. All visitors see the full error detailsExplanation
When the customErrors mode is set to Off, it means that all visitors, both local and remote users, will see the full error details when an error occurs. This means that instead of being redirected to a custom error page, they will be able to view the complete error message and stack trace, which can be helpful for troubleshooting and debugging purposes.Rate this question:
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- 4.
If the value of passwordFormat is set to _______, users cannot retrieve their original passwords
- A.
Encrypted
- B.
Clear
- C.
Cryptograph
- D.
Hashed
Correct Answer
D. HashedExplanation
If the value of passwordFormat is set to "Hashed", users cannot retrieve their original passwords. Hashing is a one-way process that converts a password into a fixed-length string of characters, making it impossible to reverse-engineer the original password from the hashed version. This is a common security measure used to protect user passwords in databases. If users forget their passwords, they typically have to reset them rather than retrieve the original password.Rate this question:
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- 5.
You should constrain user input to data you know is safe by: (There may be multiple answers)
- A.
Setting max length on ASP.NET and HTML input controls
- B.
Using ASP.NET validation controls (RequiredFieldValidation, CompareValidator, RangeValidator, RegularExpressionValidator, CustomValidator) to constrain user input via ASP.NET input controls as much as possible.
- C.
Constraining user input to a white list (list of acceptable characters)
- D.
Constraining user input to a black list (list of all un acceptable characters)
Correct Answer(s)
A. Setting max length on ASP.NET and HTML input controls
B. Using ASP.NET validation controls (RequiredFieldValidation, CompareValidator, RangeValidator, RegularExpressionValidator, CustomValidator) to constrain user input via ASP.NET input controls as much as possible.
C. Constraining user input to a white list (list of acceptable characters)Explanation
The correct answer suggests that you should use multiple methods to constrain user input to ensure data safety. Setting a maximum length on input controls helps prevent users from entering excessively long inputs that could potentially cause issues. Using ASP.NET validation controls allows you to enforce specific rules and restrictions on user input, such as required fields, data comparisons, ranges, regular expressions, and custom validations. Constraining user input to a white list ensures that only acceptable characters are allowed, while constraining to a black list identifies and blocks all unacceptable characters. By implementing these measures, you can enhance data safety and prevent potential vulnerabilities.Rate this question:
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- 6.
How do you explicitly kill a user session?
- A.
Session.Dump
- B.
Session.Abandon
- C.
Session.Exit
- D.
Session.Kill
Correct Answer
B. Session.AbandonExplanation
Session.Abandon is the correct answer because it is the method used to explicitly kill a user session in many programming languages, including ASP.NET. When Session.Abandon is called, it immediately terminates the session and removes all session data, including the session ID. This effectively ends the user's session and any further requests from the user will result in a new session being created.Rate this question:
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- 7.
Which of the following is TRUE about Windows Authentication in ASP.NET?
- A.
Automatically determines role membership
- B.
Role membership determined only by user programming
- C.
ASP.NET does not support Windows Authentication
- D.
None of the Above
Correct Answer
A. Automatically determines role membershipExplanation
Windows Authentication in ASP.NET automatically determines role membership. This means that the roles assigned to a user are determined by the authentication system itself, rather than being determined solely by user programming. This allows for easier management of role-based access control in ASP.NET applications, as the system can automatically assign roles based on the user's Windows credentials.Rate this question:
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- 8.
JQuery is?
- A.
A special .Net class to identify and query java based applications
- B.
A javascript to connect and fetch data from database server on client-side
- C.
A collection of scripts used to enhance End-User clientside experience.
- D.
A java runtime based query execution client.
Correct Answer
C. A collection of scripts used to enhance End-User clientside experience.Explanation
jQuery is a collection of scripts used to enhance the end-user clientside experience. It is a popular JavaScript library that simplifies the process of manipulating HTML documents, handling events, and creating animations. It provides a wide range of features and functionalities that make it easier for developers to create interactive and dynamic web pages. jQuery is not a .Net class, a javascript to connect and fetch data from a database server, or a java runtime based query execution client.Rate this question:
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- 9.
Which of the following must be done in order to connect data from some data resource to Repeater control? (There may be multiple answers)
- A.
Set the DataSource property
- B.
Call the DataBind method
- C.
Configure database to allow repeater access
- D.
Ask DB admin to configure a special named pipe for it
Correct Answer(s)
A. Set the DataSource property
B. Call the DataBind methodExplanation
To connect data from a data resource to a Repeater control, two steps must be done. First, the DataSource property of the Repeater control needs to be set to the appropriate data source. This tells the Repeater control where to retrieve the data from. Second, the DataBind method needs to be called on the Repeater control. This method binds the data from the data source to the Repeater control, allowing it to display the data.Rate this question:
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- 10.
What is the base class from which all Web forms inherit?
- A.
Master Page
- B.
Page Class
- C.
Session Class
- D.
Base Page Class
Correct Answer
B. Page ClassExplanation
The correct answer is "Page Class". The Page Class is the base class from which all Web forms inherit in ASP.NET. This class provides the basic functionality and properties required for creating and managing web pages. It contains methods and properties that allow developers to handle events, manage state, and interact with the user interface. By inheriting from the Page Class, developers can easily create and customize web forms according to their requirements.Rate this question:
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- 11.
What is the Use of Global.asax
- A.
Program Application & Session level events
- B.
Get notified when a global variable is changed
- C.
Set global layout of a web application
- D.
Configure settings which globally affect the server performance
Correct Answer
A. Program Application & Session level eventsExplanation
The Global.asax file is used to handle application-level and session-level events in a web application. It allows developers to write code that executes when certain events occur, such as when the application starts or ends, or when a session is started or ended. This file is commonly used to initialize global variables, set application-wide settings, and perform tasks that need to be done at the application or session level. It does not have any direct relation to notifying when a global variable is changed or setting the global layout of a web application.Rate this question:
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- 12.
How do you manage states? (There may be multiple answers)
- A.
Viewstate
- B.
Session Object
- C.
Application Object
- D.
Out of process StateServer
Correct Answer(s)
A. Viewstate
B. Session Object
C. Application ObjectExplanation
The correct answer is Viewstate, Session Object, and Application Object. These are different ways to manage states in a web application. Viewstate is used to store the state of individual controls on a web page. Session Object is used to store user-specific data that can be accessed across multiple pages during a user session. Application Object is used to store data that is shared among all users of the application. These objects provide different levels of state management depending on the scope and lifespan of the data.Rate this question:
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- 13.
Where is default session data is stored?
- A.
In Process
- B.
State Server
- C.
Session Object
- D.
None
Correct Answer
A. In ProcessExplanation
The default session data is stored "In Process" which means that it is stored in the memory of the web server hosting the application. This allows for fast and efficient access to the session data. However, it also means that if the server is restarted or the application is redeployed, the session data will be lost.Rate this question:
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- 14.
What method is used to ensure that only one process accesses a variable at a time?
- A.
Block()
- B.
Snchrozine & Block
- C.
Lock() & Unlock()
- D.
AsncAccess()
Correct Answer
C. Lock() & Unlock()Explanation
The method used to ensure that only one process accesses a variable at a time is by using the Lock() and Unlock() functions. These functions allow a process to acquire a lock on the variable, ensuring that no other process can access it until the lock is released. This ensures data integrity and prevents race conditions where multiple processes try to modify the variable simultaneously.Rate this question:
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- 15.
Suppose a .NET programmer wants to convert an object into a stream of bytes then the process is called ?
- A.
Threading
- B.
Serialization
- C.
RCW
- D.
AppDomain
Correct Answer
B. SerializationExplanation
Serialization is the correct answer because it refers to the process of converting an object into a stream of bytes, which can then be stored or transmitted and later reconstructed back into an object. This is commonly used in .NET programming to save and load objects, send objects over a network, or store objects in a database. Threading, RCW, and AppDomain are unrelated concepts and do not involve the conversion of objects into bytes.Rate this question:
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- 16.
In ASP.Net MVC, what is "Scaffolding" ?
- A.
Quickly generating a basic outline of your software that you can then edit and customize.
- B.
Generating detailed outline of your software before you begin coding.
- C.
Generating software architecture before you start testing.
- D.
Quickly generating a basic test plan of your software before you start development.
Correct Answer
A. Quickly generating a basic outline of your software that you can then edit and customize.Explanation
Scaffolding in ASP.Net MVC refers to the process of quickly generating a basic outline of your software that can be further customized and edited. It helps in automating the creation of basic code files, such as models, views, and controllers, based on predefined templates. This saves time and effort by providing a starting point for development, allowing developers to focus on implementing business logic rather than writing repetitive code. The generated code can be modified as per the specific requirements of the application.Rate this question:
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- 17.
What is the purpose of "ViewBag" object?
- A.
It enables you to pass data to a view template using a late-bound dictionary API.
- B.
It enables you to pass data to a model.
- C.
It enables you to pass data to a view template.
- D.
It enables you to generate razor view template.
Correct Answer
A. It enables you to pass data to a view template using a late-bound dictionary API.Explanation
The purpose of the "ViewBag" object is to enable the passing of data to a view template using a late-bound dictionary API. This allows for dynamic data binding and flexibility in passing data from the controller to the view. The ViewBag object acts as a container for any data that needs to be passed to the view, and the late-bound dictionary API allows for accessing this data in the view template.Rate this question:
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- 18.
What is the purpose of "TempData" object?
- A.
It is derived from TempDataDictionary class and stored in short live session.
- B.
It is used to store only one time messages like error messages, or validation messages.
- C.
It is used to pass data from current request to subsequent requests.
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
The purpose of the "TempData" object is to serve as a temporary storage mechanism in ASP.NET. It is derived from the TempDataDictionary class and stored in a short-lived session. It is commonly used to store one-time messages such as error messages or validation messages, which can be displayed to the user and then cleared. Additionally, it can be used to pass data from the current request to subsequent requests, making it useful for scenarios where data needs to be preserved across multiple actions or redirects. Therefore, the correct answer is "All of the above."Rate this question:
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- 19.
ASP.Net MVC Framework supports these types of filters: 1. Authorization filter 2. Authentication filter 3. Action filter 4. Result filter 5. View filter 6. Exception filter
- A.
1,2,4,5
- B.
1,3,4,5
- C.
1,3,4,6
- D.
1,3,4,5
Correct Answer
C. 1,3,4,6Explanation
The correct answer is 1,3,4,6 because ASP.Net MVC Framework supports Authorization filter, Action filter, Result filter, and Exception filter. Authentication filter and View filter are not supported by the framework.Rate this question:
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- 20.
ASP.Net MVC Html Helper methods:
- A.
Enables you to encapsulate the rendering of html
- B.
Has a specific event model
- C.
Uses view state heavily
- D.
All of the above
Correct Answer
A. Enables you to encapsulate the rendering of htmlExplanation
ASP.Net MVC Html Helper methods enable you to encapsulate the rendering of html. This means that you can use these helper methods to generate HTML markup in a more organized and reusable way. Instead of writing raw HTML tags and attributes in your views, you can use helper methods to generate the desired HTML output. This helps in improving code maintainability and readability.Rate this question:
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- 21.
WCF supports these bindings: 1. BasicHttp 2. WsHttp 3. NetTcp 4. Net MSMQ 5. NetTCP 6. wsFederation
- A.
1,2,4,6
- B.
1,3,4,6
- C.
1,2,5,6
- D.
1,2,3,4,5,6
Correct Answer
D. 1,2,3,4,5,6Explanation
WCF supports all of the given bindings: BasicHttp, WsHttp, NetTcp, Net MSMQ, NetTCP, and wsFederation. This means that developers can choose any of these bindings to configure their WCF services based on their specific requirements and preferences.Rate this question:
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- 22.
Some of the classes in System. Threading Namespace: 1. Thread 2. ThreadPool 3. ThreadProperty 4. Monitor 5. ThreadReflect 6. Mutex
- A.
1,2,4,6
- B.
1,2,5,6
- C.
1,3,4,6
- D.
1,3,5,6
Correct Answer
A. 1,2,4,6Explanation
The correct answer is 1,2,4,6. These are the classes in the System.Threading namespace. Thread class represents a thread of execution. ThreadPool class provides a pool of threads that can be used to execute tasks. Monitor class provides a mechanism to synchronize access to objects. Mutex class provides a mutual exclusion lock. Therefore, the classes mentioned in the correct answer are the ones that belong to the System.Threading namespace and are relevant for working with threads and synchronization.Rate this question:
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- 23.
Some of the methods in Thread Class: 1. Sleep 2. Start 3. Suspend 4. SetMaxThread 5. OpenExisting
- A.
1,2,4
- B.
1,2,5
- C.
1,2,3
- D.
1,2,3,4,5
Correct Answer
C. 1,2,3Explanation
The correct answer is 1,2,3. This is because the methods mentioned in the options are all methods available in the Thread class. The Sleep method is used to pause the execution of a thread for a specified amount of time. The Start method is used to start the execution of a thread. The Suspend method is used to temporarily suspend the execution of a thread. Therefore, options 1,2,3 are the correct combination of methods in the Thread class.Rate this question:
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- 24.
These are different types of contracts in WCF: 1. Service 2. Data 3. Message 4. Fault 5. Operation
- A.
1,3,5
- B.
1,2,4
- C.
1,2,3,4,5
- D.
1,2,5
Correct Answer
C. 1,2,3,4,5Explanation
The correct answer is 1,2,3,4,5. This means that all types of contracts (Service, Data, Message, Fault, and Operation) are present in WCF. These contracts define the communication between the client and the service, specifying the operations that can be performed, the data that can be exchanged, and how faults are handled.Rate this question:
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- 25.
WCF Service can be hosted in the following way(s):
- A.
Windows Service
- B.
IIS
- C.
WAS
- D.
WPF Application
- E.
Windows Application
- F.
All of the above
Correct Answer
F. All of the aboveExplanation
WCF service can be hosted in various ways, including Windows Service, IIS, WAS, WPF Application, and Windows Application. All of these options provide different hosting environments for the WCF service, depending on the specific requirements and preferences of the application. Therefore, the correct answer is "All of the above."Rate this question:
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