Đề ôn tập Advanced C#

1.      This feature prevents multiple threads from
simultaneously modifying the state of the resource , by including various
classes and data types.

A.     Parallel execution of code.

B.     Thread interruption

C.     Thread Synchronization

D.     Mutual Exclusion

E.      Thread Waiting

2.      This feature is the mechanism of blocking a thread
util some condition becomes true

A.     Thread Synchronization

B.     Join

C.     Thread Waiting

3.      Synchronizes access to objects

A.     Monitor

B.     Timer

C.     ThreadPool

4.      Contains operating system-specific objects that wait
for access to shared resources.

A.     TimeOut

B.     WaitHandle

C.     Thread

5.      This retrieves a value which indicates whether a
thread belongs to the managed thread pool.

A.     IsAlive

B.     ManagedThreadId

C.     IsThreadPoolThread

D.     ThreadState

6.      Retrieves the value of execution status of the
current thread.

A.     IsAlive

B.     CurrentThread

C.     ThreadState

7.      Retrieves a value which contains the state of the
current thread

A.  CurrentThread

B.  ThreadState

C.  IsAlive

8.
Priority retrieves or specifies a value which indicates the scheduling
priority of a thread.

A.  True

B.  False

9.      This method blocks the calling thread till the
thread ends.

A.  Sleep

B.  Start

C.  Join

D.  Interrupta

10.  This method obstructs the current thread for the
specified time.

A.     Join

B.     Sleep

C.     Abort

11.  A Thread must be in the Running state before the
operating System can schedule it.

A.     True

B.     False

12.  The default priority of a thread is:

A.     Highest

B.     Normal

C.     AboveNormal

D.     Lowest

13.  This is a language for retrieving information from a
XML Document. is used to navigate through elements and attributes in an xml
document.

A.     XQuery

B.     XPath

C.     SXLT

D.     SLT

14.  An XPath expression are returns:

- 3 choices

A.     a node set

B.     a integer value

C.     a Boolean

D.    a String and a number

15.  Steps to add data into an existing XML file.

    1. Create a
Method to create new element

    2. add the
element after the last child node.

    3. write value
to the element.

    4. Declare the
objects

    5.Save the
file.

A.     1-2-3-4-5

B.     3-1-2-4-5

C.     4-1-2-3-5

D.    4-1-3-2-5

16.  This is an abstract class that provides a cursor
model for navigating and editing XMl data.

A.     XPath

B.     XQuery

C.     XEdit

D.    XPathNavigator

17.  How to declare Attributes:

A.     [AttributeName(parameters)]

Element_Name(parameter){//Implementation}

B.     [AttributeName(parameters)];

Element_Name(parameter){//Implementation}

18.  This attribute can be used as debugging aid in the
C# code.

A.     DLLImport

B.     Conditional

C.     Obsolete

19.  Which statements are true?

- 3 choices

A.     Custom attributes cannot be applied to more than one programming
element

B.     Attributes are a mechanism of adding metadata to a programming
element

C.     Attribute information can not be retrieved from custom
attributes

D.     Descriptive information in the metadata can be extracted using
runtime reflection services.

E.     Attributes are stored with the metadata of the element they are
associated with.

20.  Code developed outsite the .net framework.

A.     DLLImport

B.     System.Diagnostics

C.     Unmanaged Code

21.  Namespace is mandatory for using DLLImport attribute

A.     System.DLLImport

B.     System.Runtime.InteropServices

C.     System.Diagnostics

22.  Used to invoke unmanaged code in a C#  program.

A.     Unmanaged Code

B.     Conditional Attribute

C.     DLLImport Attribute

23.  Use as debugging aid in the C# code.

A.     Conditional Attribute

B.     System.Debug

C.     System.Diagnostics

24.  Namespace is mandatory for using the Conditional
attribute

A.     Conditional Attribute.

B.     System.Diagnostics

C.     System.Runtime.InteropServices

25.  A DLL is a library that contains code and data that
can be used by more than one program at the same time.

A.     True

B.     False

26.  This is a phrase for complications which arise when
working with dynamic link libraries.

A.     DLLs

B.     DLL Hell

C.     DLLImport

27.  These are the building blocks used by the .Net
Framework used to solve the versioning and deployment problems posed by the
DLLs

A.     Assemblies

B.     Attributes

C.     XPath

D.     Custom Attributes

28.  This is a collection of information required by the
runtime to execute an application.

A.     Collection

B.     Attribute

C.     DLLs

D.    Assembly

29.  This is deployed with an application and is
available only for the application.

A.     A public assembly

B.     A private assembly

C.     A Shared assembly

D.     A protected assembly

30.  A assembly consists of parts:

- 3 choices

A.     DLLs

B.     Assembly Metadata

C.     Type Metadata

D.     Dll Hell

E.     MSIL Code & Resources

31.  A namespace can contain one or more assemblies and
an assembly can contain one or more namespaces.

A.     True

B.     False

32.  Which statements are true with assembly.

- 3 choices

A.     Multiple applications can not implement the same DLL file due to
versioning problem

B.     DLLs use fewer resource

C.     Modular programs cannot be built using Dynamic Link Library

D.     Applications must be self describing so that they are no longer
dependent of the registry entries.

33.  Collection of information existing in binary form in
a Portable Executable file or a .Net assembly.

A.     Type metadata

B.     Assembly metadata

C.     MSIL Code

34.  File such as JPEG, text, XML and other types that
are used in the application.

A.     MSIL Code

B.     Resource

C.     Multifle Assembly

35.  Data present in the assembly and its type.

A.     Assembly Metadata

B.     Type Metadata

36.  Compilers convert the source code into an intermediate
language.

A.     Assembly

B.     MSIL Code

C.     Resource

37.  The System.IO namespace in .Net does not support
stream handling.

A.     True

B.     False

38.  The class named File is a member of System.IO
namespace.

A.     True

B.     False

39.  This class reads primary data types as binary values
in a specific encoding

A.     TextReader

B.     BinaryReader

C.     FileStream

40.  This class provides methods for creating, moving and
enumerating through directories and sub-directories.

A.     DirectoryInfor

B.     Directory

C.     MemberInfor

41.  This class provides instance methods for creating,
moving and enumerating directories and sub-directories.

A.     DirectoryInfor

B.     Directory

C.     File

42.  This class provides static methods for creating and
manipulating files.

A.     FileStream

B.     File

C.     FileInfor

D.     FileSystemInfor

43.  This class contains methods that are common to file
and directory manipulation.

A.     Stream

B.     FileSystemInfor

C.     FileInfor

D.     File

44.  The TextReader class represents a reader that can
read a sequence of characters.

A.     True

B.     False

45.  This class is used to read and write data to memory
instead of a disk.

A.     BufferedStream

B.     MemoryStream

C.     FileStream

D.     CrypttoStream

46.  This class is not part of the system.IO namsepace,
It resides within the System.security.

A.     NetWorkStream

B.     CryptoStream

47.  These classes are not part of the System.IO
namspace.

A.     NetWorkStream

B.     CryptoStream

C.     BufferStream

D.     MemoryStream

48.  This class can be used for operations such as
creating, copying, moving, deleting and appending to files.

A.     FileStream

B.     FileInfor

C.     File

D.     FileManipulate

49.  The FileInfor class is used to create FileStream
Object.

A.     True

B.     False

50.  In Directory class, this method returns a
DirectoryInfor object which can be used to work with the newly created
directory.

A.     CreateDirectoryInfor();

B.     CreateDir();

C.     CreateDirectory()

51.  This method of Directory class is also used to
rename the directory.

A.     Rename();

B.     Move();

C.     Delete();

D.     ReMove();

52.  Get the names of sub-directories in a specified
directory.

A.     GetDirectories

B.     GetDirectory

C.     GetCurrentDirectory

53.  Returns current working directory of the
application.

A.     GetDirectoties

B.     GetCurrentDirectory

C.     SetCurrentDirectory

54.  Which the terms do they belong to Directoryinfo
class?

- 3 choices

A.     FullName

B.     CreateDirectory()

C.     Move()

D.    MoveTo()

E.     Create()

55.  Re-order steps of creating a thread in C#.

 1.Define a method inside
class.

 2. Create constructor.

 3. Define a class

 4. Create one or more
objects of the class in the new class

 5.Create one or more Thread
objects in the new class

 6. Start the execution of
the thread.

A.     1-2-3-4-5-6

B.     2-4-5-6-1-3

C.     3-2-1-4-5-6

D.    3-1-4-5-6

56.  Only the Thread class can be used to create a thread
object.

A.     True

B.     False

57.  A portion of thread which is accessed by multiple
threads at the same time.

A.     Locking

B.     Reentrant

C.     Critical Section

D.     Thread Pooling

58.  This object that does not change its state after it is create.

A.     Thread
object

B.     Immutable
object

C.     pool
object

59.  This method which id thread – safe

A.     Locking

B.     Interrupt

C.     Reentrant

60.  Which statements are true?

A.     COM has only DCOM as its technology

B.     COM permits reuse of code across different environments.

C.     GUID is referred when COM or DCOM object is registered

D.     COM combines subsystems to form one large system.

E.     COM uses com-capable tool during the implementation of each
subsystem.

61.  This performs operations like joins, ordering and
sorting

A.     XmlReader and XmlWriter

B.     Xpath

C.
Xquery

62.  Which statements are true?

A.     XML deals with the arranging of data

B.     XMLDocument class enables navigation and editing

63.  A standard that helps in processing xml

A.     XmlReader

B.
System.Xml namespace

C.     Xquery

64.  A class that has the ability to accept or reject
changes in the document.

A.     XmlDocument

B.
ApathDocument

C.     XpathEdittableNavigator

65.  XmlTextWriter is a class that is derived from
XmlWriter

A.
True

B.     False

66.  WriteString() method flushes the buffer and writes
whatever data is left in the buffer to the stream.

A.     True

B.
False

67.  Read the next node from the stream.

A.     XmlTextReader

B.     Read method

68.  Rises when a validation error occurs

A.     ValidationEventHandle

B.     validationType

69.  Child operator ; selects immediate children of the
left-site collection

A.     //

B.
/

C.     ..

D.     *

70.  Recursive descent ; searches for the specified
element at any depth

A.
//

B.     ..

C.     @

D.     *

71.  Indicates the current context.

A.     ..

B.
.

C.     ,

D.     //

72.  The parent of the current context node

A.     //

B.     ..

C.     @

D.     *

73.  Attribute ; prefix for an attribute name

A.
@

B.     *

C.     –

D.     //

74.  wildcard; selects all elements regardless of the
element name

A.     **

B.     &

C.     #

D.
*

E.      //

75.  Which characters do not belong to XPath expression.

A.     *

B.     ;

C.     .

D.    ?

E.
#