This section of our 1000+ C# MCQs focuses on networking errors in C# Programming Language.
1. What exception is thrown if the URI format is invalid?
a) URLNotFound
b) URLSourceNotFound
c) MalformedURLException
d) UriFormatException
View Answer
Explanation: None.
2. What exception is thrown if the protocol supported by URI prefix is invalid?
a) URLNotFound
b) URLSourceNotFound
c) UriFormatException
d) NotSupportedException
View Answer
Explanation: None.
3. What exception is thrown if the user does not have a proper authorization?
a) URLNotFound
b) URLSourceNotFound
c) System.Security.SecurityException
d) All of the mentioned
View Answer
Explanation: None.
4. Choose the exceptions generated by the Create() method defined by WebRequest:
a) NotSupportedException
b) UriFormatException
c) System.Security.SecurityException
d) All of the mentioned
View Answer
Explanation: None.
5. Choose the exceptions generated by the GetReponse() method defined by WebRequest:
a) InvalidOperationException
b) ProtocolViolationException
c) WebException
d) All of the mentioned
View Answer
Explanation: By definition.
6. Select the properties related to the network errors generated by WebException:
a) response
b) get
c) set
d) none of the mentioned
View Answer
Explanation: WebException has two properties that relate to network errors:
Response and Status.
We can obtain a reference to the WebResponse object inside an exception handler through the Response property. For the HTTP protocol, this object describes the error. It is defined like this:
public WebResponse Response { get; }
When an error occurs, we can use the Status property of WebException to find out what went wrong. It is defined like this:
public WebExceptionStatus Status {get; }
7. Which of these classes is used for operating on the request from the client to the server?
a) http
b) httpDecoder
c) httpConnection
d) httpd
View Answer
Explanation: None.
8. Choose the exceptions generated by the GetResponseStream() method defined by WebRequest:
a) ProtocolViolationException
b) ObjectDisposedException
c) IOException
d) All of the mentioned
View Answer
Explanation: None.
9. Which of these classes is used to create servers that listen to either local or remote client programs?
a) httpServer
b) ServerSockets
c) MimeHeader
d) HttpResponse
View Answer
Explanation: None.
10. Which of these methods gives the full URL of an URL object?
a) fullHost()
b) getHost()
c) AbsoluteUri
d) toExternalForm()
View Answer
Explanation: None.
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