MCQOPTIONS
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MCQOPTIONS
This section includes 623 Mcqs, each offering curated multiple-choice questions to sharpen your Technical Programming knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
Select the interfaces defined by the string class? |
| A. | IComparable |
| B. | IComparable<string> |
| C. | ICloneable |
| D. | All of the mentioned |
| Answer» E. | |
| 252. |
Select the namespace in which string class is built? |
| A. | System.Text |
| B. | System.Net |
| C. | System.IO |
| D. | None of the mentioned |
| Answer» B. System.Net | |
| 253. |
Accessibility modifiers defined in a class are? |
| A. | public, private, protected |
| B. | public, internal, protected internal. |
| C. | public, private, internal, protected internal. |
| D. | public, private, protected, internal, protected internal |
| Answer» E. | |
| 254. |
Which of these access specifiers must be used for class so that it can be inherited by another subclass? |
| A. | public |
| B. | private |
| C. | both public & private |
| D. | none of the mentioned |
| Answer» B. private | |
| 255. |
Which of these base class are accessible to the derived class members? |
| A. | static |
| B. | protected |
| C. | private |
| D. | shared |
| Answer» C. private | |
| 256. |
Which among these access specifiers should be used for main() method? |
| A. | private |
| B. | public |
| C. | protected |
| D. | none of the mentioned |
| Answer» C. protected | |
| 257. |
Which operator is commonly used to find the size of the type of C#? |
| A. | size() |
| B. | sizeof(type) |
| C. | both size() & sizeof(type) |
| D. | none of the mentioned |
| Answer» C. both size() & sizeof(type) | |
| 258. |
What does the following code depicts? 1. System.Nullable count; 2. bool? done; |
| A. | Code 1 declares the objects of nullable of type Nullable defined in the System namespace |
| B. | Code 2 declares a nullable type in much shorter and in more commonly used way using ‘?’ |
| C. | Both Code 1 declares the objects of nullable of type Nullable defined in the System namespace & Code 2 declares a nullable type in much shorter and in more commonly used way using ‘?’ |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 259. |
Choose the statement which defines the Nullable type Correctly: |
| A. | A special version of a value type that is represented by a structure |
| B. | A nullable type can also store the value null |
| C. | Nullable types are objects of System.Nullable, where T must be a non nullable value type |
| D. | All of the mentioned |
| Answer» E. | |
| 260. |
What will be the declaration of the variable ptr as the pointer to array of 6 floats? |
| A. | float *ptr[6]. |
| B. | float [6]*ptr |
| C. | float(*ptr)[6]. |
| D. | float(*ptr)(6). |
| Answer» D. float(*ptr)(6). | |
| 261. |
A structure pointer points to __________ |
| A. | first member of structure |
| B. | first two members of structure |
| C. | whole structure |
| D. | only to the last member of structure |
| Answer» D. only to the last member of structure | |
| 262. |
Among the given pointers which of following cannot be incremented? |
| A. | int |
| B. | char |
| C. | float |
| D. | void |
| Answer» E. | |
| 263. |
Which among the following is referred as an array of pointers? |
| A. | int *p; |
| B. | int (*)p; |
| C. | int p[4]; |
| D. | int*[4] p; |
| Answer» E. | |
| 264. |
Which of the following job is done by the instruction ++*p for an integer pointer p? |
| A. | increment value contained at address p |
| B. | increment address contained in p |
| C. | Both increment value contained at address p and increment address contained in p |
| D. | neither increment value contained at address p nor increment address contained in p |
| Answer» B. increment address contained in p | |
| 265. |
After incrementing a float pointer ptr by 1 it would be incremented by __________ |
| A. | 1 byte |
| B. | 2 bytes |
| C. | 3 bytes |
| D. | 4 bytes |
| Answer» E. | |
| 266. |
What is the size of a char pointer? |
| A. | 1 byte |
| B. | 2 byte |
| C. | 3 byte |
| D. | 4 byte |
| Answer» C. 3 byte | |
| 267. |
Choose the correct statement among the given statements? |
| A. | Use of return statement is necessary in every function |
| B. | Return statement may not be followed by a parenthesis |
| C. | A program may contain more than one return statement |
| D. | Return statement may not return a value |
| Answer» B. Return statement may not be followed by a parenthesis | |
| 268. |
Which among the given operators is referred to as ‘address of’ operator? |
| A. | * |
| B. | ^ |
| C. | & |
| D. | ~ |
| Answer» D. ~ | |
| 269. |
Fill up the blank : Pointer variable is used to hold the _________ of the variable |
| A. | Value |
| B. | Address |
| C. | Value and Address |
| D. | Name of the variable |
| Answer» C. Value and Address | |
| 270. |
Select the type argument of open constructed type? |
| A. | Gen<int> |
| B. | Gen<T> |
| C. | Gen<> |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 271. |
Which of these is an correct way of defining generic method? |
| A. | name(T1, T2, …, Tn) { /* … */ } |
| B. | public name { /* … */ } |
| C. | class name[T1, T2, …, Tn] { /* … */ } |
| D. | name{T1, T2, …, Tn} { /* … */ } |
| Answer» C. class name[T1, T2, …, Tn] { /* … */ } | |
| 272. |
Which of these type parameters is used for generic methods to return and accept any type of object? |
| A. | K |
| B. | N |
| C. | T |
| D. | V |
| Answer» D. V | |
| 273. |
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 |
| Answer» C. MimeHeader | |
| 274. |
Choose the exceptions generated by the GetResponseStream() method defined by WebRequest: |
| A. | ProtocolViolationException |
| B. | ObjectDisposedException |
| C. | IOException |
| D. | All of the mentioned |
| Answer» E. | |
| 275. |
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 |
| Answer» E. | |
| 276. |
Select the properties related to the network errors generated by WebException: |
| A. | response |
| B. | get |
| C. | set |
| D. | none of the mentioned |
| Answer» B. get | |
| 277. |
Choose the exceptions generated by the GetReponse() method defined by WebRequest: |
| A. | InvalidOperationException |
| B. | ProtocolViolationException |
| C. | WebException |
| D. | All of the mentioned |
| Answer» E. | |
| 278. |
Choose the exceptions generated by the Create() method defined by WebRequest: |
| A. | NotSupportedException |
| B. | UriFormatException |
| C. | System.Security.SecurityException |
| D. | All of the mentioned |
| Answer» E. | |
| 279. |
What exception is thrown if the user does not have a proper authorization? |
| A. | URLNotFound |
| B. | URLSourceNotFound |
| C. | URLSourceNotFound |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 280. |
What exception is thrown if the protocol supported by URI prefix is invalid? |
| A. | URLNotFound |
| B. | URLSourceNotFound |
| C. | UriFormatException |
| D. | NotSupportedException |
| Answer» E. | |
| 281. |
What exception is thrown if the URI format is invalid? |
| A. | URLNotFound |
| B. | URLSourceNotFound |
| C. | MalformedURLException |
| D. | UriFormatException |
| Answer» E. | |
| 282. |
Which of these classes is used to access actual bits or content information of a URL? |
| A. | URL |
| B. | URLDecoder |
| C. | URLConnection |
| D. | All of the mentioned |
| Answer» E. | |
| 283. |
Which of these data members of HttpResponse class is used to store the response from a http server? |
| A. | status |
| B. | address |
| C. | statusResponse |
| D. | statusCode |
| Answer» E. | |
| 284. |
Which of these classes is used to encapsulate IP address and DNS? |
| A. | DatagramPacket |
| B. | URL |
| C. | InetAddress |
| D. | ContentHandler |
| Answer» D. ContentHandler | |
| 285. |
Which of these exceptions is thrown by the URL class’s constructors? |
| A. | URLNotFound |
| B. | URLSourceNotFound |
| C. | MalformedURLException |
| D. | URLNotFoundException |
| Answer» D. URLNotFoundException | |
| 286. |
What is the full form of URL in C#.Net? |
| A. | Uniform Resource Locator |
| B. | Uniform Resource Latch |
| C. | Universal Resource Locator |
| D. | Universal Resource Latch |
| Answer» B. Uniform Resource Latch | |
| 287. |
Which of the following are the protocols defined by .NET runtime: |
| A. | HTTP |
| B. | HTTPS |
| C. | File |
| D. | All of the mentioned |
| Answer» E. | |
| 288. |
Which of the following classes is used to encapsulate IP address and DNS? |
| A. | DatagramPacket |
| B. | URL |
| C. | InetAddress |
| D. | ContentHandler |
| Answer» D. ContentHandler | |
| 289. |
Which of the following is the full form of DNS? |
| A. | Data Network Service |
| B. | Data Name Service |
| C. | Domain Network Service |
| D. | Domain Name Service |
| Answer» E. | |
| 290. |
How many bits are present in a single IP address? |
| A. | 8 |
| B. | 16 |
| C. | 32 |
| D. | 64 |
| Answer» D. 64 | |
| 291. |
How many ports of TCP/IP are reserved for specific protocols? |
| A. | 10 |
| B. | 1024 |
| C. | 2048 |
| D. | 512 |
| Answer» C. 2048 | |
| 292. |
Which of the following class/classes supports the task of uploading and downloading the file: |
| A. | WebRequest |
| B. | WebResponse |
| C. | WebClient |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 293. |
Which of the following are the classes that support the standard HTTP protocol |
| A. | HttpWebRequest |
| B. | HttpResponseHeader |
| C. | HttpRequestHeader |
| D. | HttpStatusCode |
| Answer» B. HttpResponseHeader | |
| 294. |
Which of the following are the interfaces defined by the namespace System.Net: |
| A. | IAuthenticationModule |
| B. | HttpWebRequest |
| C. | WebProxy |
| D. | HttpResponseHeader |
| Answer» B. HttpWebRequest | |
| 295. |
Which of the following are the classes defined by the namespace System.Net: |
| A. | Cookie |
| B. | CookieContainer |
| C. | FileWebRequest |
| D. | All of the mentioned |
| Answer» E. | |
| 296. |
Which namespace is mostly preferred for the operation of networking in C#? |
| A. | System.Web |
| B. | System.in |
| C. | System.Net.Mail |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 297. |
Which of these methods is executed first before execution of any other thing that takes place in a program? |
| A. | main method |
| B. | finalize method |
| C. | static method |
| D. | private method |
| Answer» D. private method | |
| 298. |
What is the process of defining more than one method in a class differentiated by parameters known as? |
| A. | Function overriding |
| B. | Function overloading |
| C. | Function doubling |
| D. | None of the mentioned |
| Answer» C. Function doubling | |
| 299. |
Which of these data types can be used for a method having a return statement in it? |
| A. | void |
| B. | int |
| C. | float |
| D. | all of the mentioned |
| Answer» E. | |
| 300. |
Which among the following is not a preprocessor directive? |
| A. | #ifdef |
| B. | #pragma |
| C. | #Or |
| D. | #undef |
| Answer» D. #undef | |