Acs - Advance C# For Aptech Accp 2007

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  • 1/71 Questions

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

    • Parallel execution of code.
    • Thread interruption
    • Thread Synchronization
    • Mutual Exclusion
    • Thread Waiting
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Acs - Advance C# For Aptech Accp 2007 - Quiz

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  • 2. 

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

    • Thread Synchronization

    • Join

    • Thread Waiting

    Correct Answer
    A. Thread Waiting
    Explanation
    Thread Waiting is the correct answer because it refers to the mechanism of blocking a thread until some condition becomes true. When a thread is in a waiting state, it is paused and does not consume any CPU resources. It remains in this state until it is notified by another thread that the condition it was waiting for has been met. This mechanism is commonly used in multi-threaded programming to ensure that threads synchronize their actions and wait for specific conditions before proceeding.

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  • 3. 

    Synchronizes access to objects

    • Monitor

    • Timer

    • ThreadPool

    Correct Answer
    A. Monitor
    Explanation
    Monitor is a mechanism that synchronizes access to objects in multithreaded environments. It allows only one thread to enter a synchronized block of code at a time, ensuring that the shared resources are accessed in a thread-safe manner. By using monitors, concurrent access to objects can be controlled, preventing race conditions and ensuring data consistency. Monitors are commonly used in programming languages like Java and C# to provide mutual exclusion and coordination between threads.

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  • 4. 

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

    • TimeOut

    • WaitHandle

    • Thread

    Correct Answer
    A. WaitHandle
    Explanation
    WaitHandle is the correct answer because it is a class in .NET that represents operating system-specific objects used for synchronization. These objects allow threads to wait for access to shared resources and are used to coordinate the execution of multiple threads. The WaitHandle class provides methods for waiting, signaling, and releasing the wait for these resources, making it a suitable choice for this scenario.

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  • 5. 

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

    • IsAlive

    • ManagedThreadId

    • IsThreadPoolThread

    • ThreadState

    Correct Answer
    A. IsThreadPoolThread
    Explanation
    The correct answer is IsThreadPoolThread. This property retrieves a value that indicates whether a thread belongs to the managed thread pool. It can be used to determine if a thread is a worker thread from the thread pool or not.

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  • 6. 

    Retrieves the value of execution status of the current thread.

    • IsAlive

    • CurrentThread

    • ThreadState

    Correct Answer
    A. IsAlive
    Explanation
    The IsAlive method is used to retrieve the value of the execution status of the current thread. It returns a boolean value indicating whether the thread is still alive or has terminated. This method can be useful in scenarios where we need to check if a thread is still running before proceeding with further actions or logic. By using IsAlive, we can make decisions based on the current state of the thread and ensure that our program behaves as expected.

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  • 7. 

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

    • CurrentThread

    • ThreadState

    • IsAlive

    Correct Answer
    A. IsAlive
    Explanation
    The IsAlive property is used to retrieve a value that indicates whether the current thread is still running or has terminated. It returns true if the thread is still alive and false if it has completed its execution. This property is useful in scenarios where the program needs to check the status of a thread and take appropriate actions based on whether it is still running or not.

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  • 8. 

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

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because the priority of a thread determines its importance and the order in which it is scheduled to run by the operating system. A higher priority thread will be given more CPU time and resources compared to a lower priority thread. The priority can be set or retrieved using the "Priority" function, allowing the programmer to control the scheduling behavior of the threads in their program.

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  • 9. 

    This method blocks the calling thread till the thread ends.

    • Sleep

    • Start

    • Join

    • Interrupt

    Correct Answer
    A. Join
    Explanation
    The correct answer is "Join". The Join method is used to block the calling thread until the thread it is called on ends. This means that the calling thread will wait for the specified thread to complete its execution before continuing. The other options, Sleep, Start, and Interrupt, do not have this blocking behavior.

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  • 10. 

    This method obstructs the current thread for the specified time.

    • Join

    • Sleep

    • Abort

    Correct Answer
    A. Sleep
    Explanation
    The correct answer is "Sleep" because the method "Sleep" in programming is used to pause or delay the execution of the current thread for a specified amount of time. It allows other threads to execute while the current thread is sleeping, and it is commonly used for tasks such as creating delays or implementing timeouts in a program.

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  • 11. 

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

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Before the operating system can schedule a thread, it must be in the Running state. This means that the thread is eligible to be executed by the CPU. If a thread is not in the Running state, it cannot be scheduled by the operating system and therefore cannot be executed. Thus, the statement is true.

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  • 12. 

    The default priority of a thread is:

    • Highest

    • Normal

    • AboveNormal

    • Lowest

    Correct Answer
    A. Normal
    Explanation
    The default priority of a thread is "Normal." This means that the thread will have a standard level of priority in the execution order among other threads. It will not have the highest or lowest priority, but will instead be assigned a priority that is considered average or moderate.

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  • 13. 

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

    • XQuery

    • XPath

    • SXLT

    • SLT

    Correct Answer
    A. XPath
    Explanation
    XPath is a language that is used to navigate through elements and attributes in an XML document. It provides a way to locate specific elements or data within an XML structure. XPath expressions can be used to select nodes based on their element names, attributes, or other criteria. This makes XPath a powerful tool for retrieving information from XML documents.

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  • 14. 

    An XPath expression are returns: - 3 choices

    • A node set

    • A integer value

    • A boolean

    • A String and a number

    Correct Answer(s)
    A. A node set
    A. A boolean
    A. A String and a number
    Explanation
    An XPath expression can return a node set, which is a collection of nodes that match the given criteria. It can also return a boolean value, which is either true or false, indicating whether the condition specified in the expression is satisfied or not. Additionally, an XPath expression can return a string, which is a sequence of characters, and a number, which can be either an integer or a decimal value.

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  • 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.

    • 1-2-3-4-5

    • 3-1-2-4-5

    • 4-1-2-3-5

    • 4-1-3-2-5

    Correct Answer
    A. 4-1-3-2-5
    Explanation
    The correct order of steps to add data into an existing XML file is as follows:
    1. Declare the objects
    2. Create a Method to create a new element
    3. Write value to the element
    4. Add the element after the last child node
    5. Save the file.
    This order ensures that the necessary objects are declared, a new element is created, the value is written to the element, the element is added in the correct position, and finally, the file is saved with the new data.

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  • 16. 

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

    • XPath

    • XQuery

    • XEdit

    • XPathNavigator

    Correct Answer
    A. XPathNavigator
    Explanation
    XPathNavigator is the correct answer because it is an abstract class that provides a cursor model for navigating and editing XML data. XPathNavigator allows users to traverse through XML documents using XPath expressions and perform various operations like selecting nodes, editing node values, and navigating through the XML structure. It provides a convenient way to interact with XML data and is commonly used in XML processing and manipulation tasks.

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  • 17. 

    How to declare Attributes:

    • [AttributeName(parameters)] Element_Name(parameter){//Implementation}

    • [AttributeName(parameters)]; Element_Name(parameter){//Implementation}

    Correct Answer
    A. [AttributeName(parameters)] Element_Name(parameter){//Implementation}
    Explanation
    This code snippet demonstrates how to declare attributes in a programming language. The attributes are declared using the syntax [AttributeName(parameters)]. After declaring the attributes, the code defines an element called Element_Name with a parameter. The implementation of the element is then provided within curly braces {}. This code snippet shows the correct way to declare attributes and define elements with parameters and their implementation.

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  • 18. 

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

    • DLLImport

    • Conditional

    • Obsolete

    Correct Answer
    A. Conditional
    Explanation
    The correct answer is Conditional. The Conditional attribute in C# is used as a debugging aid. It allows you to specify that a method should only be called if a specific compilation symbol is defined. This can be useful for including or excluding certain code blocks during debugging or testing.

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  • 19. 

    Which statements are true? - 3 choices

    • Custom attributes cannot be applied to more than one programming element

    • Attributes are a mechanism of adding metadata to a programming element

    • Attribute information can not be retrieved from custom attributes

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

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

    Correct Answer(s)
    A. Attributes are a mechanism of adding metadata to a programming element
    A. Descriptive information in the metadata can be extracted using runtime reflection services.
    A. Attributes are stored with the metadata of the element they are associated with.
    Explanation
    Custom attributes cannot be applied to more than one programming element - This statement is false. Custom attributes can be applied to multiple programming elements.

    Attributes are a mechanism of adding metadata to a programming element - This statement is true. Attributes provide additional information or metadata about a programming element.

    Attribute information can not be retrieved from custom attributes - This statement is false. Attribute information can be retrieved using reflection services.

    Descriptive information in the metadata can be extracted using runtime reflection services - This statement is true. Reflection services allow access to the metadata, including descriptive information, of a programming element.

    Attributes are stored with the metadata of the element they are associated with - This statement is true. Attributes are stored along with the metadata of the programming element they are applied to.

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  • 20. 

    Code developed outsite the .net framework.

    • DLLImport

    • System.Diagnostics

    • Unmanaged Code

    Correct Answer
    A. Unmanaged Code
    Explanation
    The given answer "Unmanaged Code" is correct because when code is developed outside of the .NET framework, it is considered unmanaged code. Unmanaged code refers to code that is written in languages like C or C++ and does not run within the common language runtime (CLR) of the .NET framework. This code does not benefit from the memory management and other features provided by the CLR and must be manually managed. The use of DLLImport and System.Diagnostics also suggests the integration of external libraries and the need to interact with low-level system resources, further indicating the presence of unmanaged code.

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  • 21. 

    Namespace is mandatory for using DLLImport attribute

    • System.DLLImport

    • System.Runtime.InteropServices

    • System.Diagnostics

    Correct Answer
    A. System.Runtime.InteropServices
    Explanation
    The correct answer is System.Runtime.InteropServices. The System.Runtime.InteropServices namespace provides the DLLImport attribute, which is used to indicate that a method is implemented in an external DLL (Dynamic Link Library). This attribute allows the program to call functions from the DLL. Therefore, in order to use the DLLImport attribute, the System.Runtime.InteropServices namespace is mandatory.

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  • 22. 

    Used to invoke unmanaged code in a C#  program.

    • Unmanaged Code

    • Conditional Attribute

    • DLLImport Attribute

    Correct Answer
    A. DLLImport Attribute
    Explanation
    The DLLImport Attribute is used in C# programs to invoke unmanaged code. Unmanaged code refers to code that is written in a language other than C# and does not run under the control of the .NET runtime. The DLLImport Attribute allows C# programs to call functions and use data structures defined in unmanaged code libraries, such as DLLs. By using this attribute, C# programs can leverage the functionality provided by unmanaged code, allowing for interoperability between different programming languages and systems.

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  • 23. 

    Use as debugging aid in the C# code.

    • Conditional Attribute

    • System.Debug

    • System.Diagnostics

    Correct Answer
    A. Conditional Attribute
    Explanation
    The Conditional Attribute is used as a debugging aid in C# code. It allows developers to specify that a method or attribute should only be executed or included in the compiled code if a specified compilation symbol is defined. This means that certain code or debugging statements can be selectively included or excluded based on the defined symbols, making it easier to debug and test specific sections of code without affecting the overall functionality of the program. The Conditional Attribute is part of the System.Diagnostics namespace, which provides classes for interacting with the debugging and tracing features of the .NET framework.

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  • 24. 

    Namespace is mandatory for using the Conditional attribute

    • Conditional Attribute.

    • System.Diagnostics

    • System.Runtime.InteropServices

    Correct Answer
    A. System.Diagnostics
    Explanation
    The System.Diagnostics namespace is mandatory for using the Conditional attribute. This attribute allows developers to specify that a method should only be called under certain conditions, such as when a specific compilation symbol is defined. The Conditional attribute is commonly used for conditional compilation and debugging purposes. By placing this attribute in the System.Diagnostics namespace, it ensures that the attribute can be accessed and used in the appropriate context.

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  • 25. 

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

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A DLL (Dynamic Link Library) is indeed a library that contains code and data that can be shared and used by multiple programs simultaneously. This allows for efficient code reuse and helps in reducing redundancy. DLLs are commonly used in various operating systems and programming languages to provide shared functionality to different applications. Therefore, the given answer "True" is correct.

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  • 26. 

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

    • DLLs

    • DLL Hell

    • DLLImport

    Correct Answer
    A. DLL Hell
    Explanation
    DLL Hell refers to the complications that arise when working with dynamic link libraries (DLLs). It is a term used to describe the problems that occur when different applications or versions of the same application require different versions of a DLL. This can result in conflicts, errors, and instability within the system. DLL Hell can be a challenging issue to resolve and often requires careful management and compatibility testing to ensure that all applications can coexist harmoniously.

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  • 27. 

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

    • Assemblies

    • Attributes

    • XPath

    • Custom Attributes

    Correct Answer
    A. Assemblies
    Explanation
    Assemblies are the building blocks used by the .Net Framework to solve versioning and deployment problems posed by DLLs. Assemblies contain compiled code, metadata, and resources that are required to execute a program. They provide a way to organize and deploy code, ensuring that all the necessary components are available and properly versioned. Assemblies also enable features like side-by-side execution, where multiple versions of the same assembly can coexist on a system without conflicts.

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  • 28. 

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

    • Collection

    • Attribute

    • DLLs

    • Assembly

    Correct Answer
    A. Assembly
    Explanation
    An assembly is a collection of information required by the runtime to execute an application. It contains the compiled code, metadata, and resources needed for the application to run. Assemblies are self-describing, meaning they contain information about the types and members within them. They can be stored in DLLs or EXE files.

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  • 29. 

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

    • A public assembly

    • A private assembly

    • A Shared assembly

    • A protected assembly

    Correct Answer
    A. A private assembly
    Explanation
    A private assembly is a type of assembly that is deployed with an application and is only available for that specific application. It is not accessible or usable by other applications or components. This type of assembly provides a level of isolation and security, as it ensures that the functionality and resources contained within the assembly are only accessible within the context of the application it is associated with.

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  • 30. 

    A assembly consists of parts: - 3 choices

    • DLLs

    • Assembly Metadata

    • Type Metadata

    • Dll Hell

    • MSIL Code & Resources

    Correct Answer(s)
    A. Assembly Metadata
    A. Type Metadata
    A. MSIL Code & Resources
    Explanation
    An assembly consists of various components, including assembly metadata, type metadata, and MSIL code & resources. Assembly metadata contains information about the assembly such as its version, culture, and strong name. Type metadata describes the types (classes, interfaces, etc.) defined within the assembly, including their structure, members, and relationships. MSIL code & resources are the actual executable code and additional resources (such as images or text files) contained within the assembly. These components together make up the assembly and allow it to be executed by the .NET runtime environment.

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  • 31. 

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

    • True

    • False

    Correct Answer
    A. True
    Explanation
    This statement is true because a namespace is a way to organize and group related classes, interfaces, and other types. An assembly, on the other hand, is a compiled unit of code that can contain multiple namespaces. Therefore, it is possible for a namespace to contain one or more assemblies, and conversely, an assembly can contain one or more namespaces.

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  • 32. 

    Which statements are true with assembly.- 3 choices

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

    • DLLs use fewer resource

    • Modular programs cannot be built using Dynamic Link Library

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

    Correct Answer(s)
    A. Multiple applications can not implement the same DLL file due to versioning problem
    A. DLLs use fewer resource
    A. Applications must be self describing so that they are no longer dependent of the registry entries.
    Explanation
    Multiple applications cannot implement the same DLL file due to versioning problem. This is because different applications may require different versions of the DLL, and conflicts may arise if multiple applications try to use the same DLL file with different versions. DLLs use fewer resources compared to static libraries because they are loaded into memory only when needed, reducing memory usage. Applications must be self-describing so that they are no longer dependent on registry entries. This allows the applications to function independently without relying on specific registry settings or configurations.

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  • 33. 

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

    • Type metadata

    • Assembly metadata

    • MSIL Code

    Correct Answer
    A. Assembly metadata
    Explanation
    Assembly metadata refers to the collection of information that exists in binary form in a Portable Executable file or a .Net assembly. This metadata includes details about the assembly, such as its version, name, culture, public key, and other information that helps in identifying and describing the assembly. It also includes information about the types defined within the assembly, their members, and their relationships. Assembly metadata is essential for the runtime environment to understand and load the assembly correctly.

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  • 34. 

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

    • MSIL Code

    • Resource

    • Multifle Assembly

    Correct Answer
    A. Resource
    Explanation
    The term "Resource" refers to files such as JPEG, text, XML, and other types that are used in an application. These files are typically included within the application's executable or assembly and can be accessed and utilized by the application during runtime. Resources can include images, strings, configuration files, and other data that the application needs to function properly. By including these resources within the application, it ensures that they are readily available and can be easily managed and distributed along with the application itself.

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  • 35. 

    Data present in the assembly and its type.

    • Assembly Metadata

    • Type Metadata

    Correct Answer
    A. Type Metadata
    Explanation
    The correct answer is Type Metadata. This is because the given information mentions "Data present in the assembly and its type." This suggests that the data being referred to is related to the type of metadata. Assembly Metadata refers to information about the assembly as a whole, while Type Metadata specifically pertains to the data associated with the types defined within the assembly. Therefore, Type Metadata is the most appropriate answer based on the given context.

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  • 36. 

    Compilers convert the source code into an intermediate language.

    • Assembly

    • MSIL Code

    • Resource

    Correct Answer
    A. MSIL Code
    Explanation
    Compilers convert the source code into MSIL Code, which stands for Microsoft Intermediate Language. MSIL Code is a low-level, platform-independent language that can be executed by the Common Language Runtime (CLR) in the .NET framework. It serves as an intermediate step between the source code and the machine code, allowing for portability and interoperability of .NET applications. Therefore, the correct answer is MSIL Code.

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  • 37. 

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

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The System.IO namespace in .Net actually does support stream handling. It provides classes and methods for working with streams, such as reading from and writing to files, network connections, and memory. This namespace is commonly used for tasks involving input/output operations in .Net applications.

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  • 38. 

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

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the correct answer is that the statement is true. The class named File does exist in the System.IO namespace. The System.IO namespace in .NET provides classes for performing input and output operations, including reading from and writing to files. The File class specifically provides static methods for creating, copying, deleting, moving, and opening files, among other file-related operations.

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  • 39. 

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

    • TextReader

    • BinaryReader

    • FileStream

    Correct Answer
    A. BinaryReader
    Explanation
    BinaryReader is the correct answer because it is a class that is used to read binary values in a specific encoding. It is specifically designed to read primitive data types from a binary stream. The other options, TextReader and FileStream, are not specifically designed for reading binary values in a specific encoding. TextReader is used for reading characters from a text file, while FileStream is used for reading and writing bytes from a file.

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  • 40. 

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

    • DirectoryInfor

    • Directory

    • MemberInfor

    Correct Answer
    A. Directory
    Explanation
    The correct answer is "Directory" because it is the class that provides methods for creating, moving, and enumerating through directories and sub-directories.

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  • 41. 

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

    • DirectoryInfor

    • Directory

    • File

    Correct Answer
    A. DirectoryInfor
    Explanation
    The correct answer is "DirectoryInfor" because it is a class that provides instance methods for creating, moving, and enumerating directories and sub-directories. This class is specifically designed for working with directories and sub-directories, whereas "Directory" and "File" are classes that deal with individual files.

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  • 42. 

    This class provides static methods for creating and manipulating files.

    • FileStream

    • File

    • FileInfor

    • FileSystemInfor

    Correct Answer
    A. File
    Explanation
    The correct answer is "File" because the given statement suggests that the class is used for creating and manipulating files, and the "File" class in many programming languages provides static methods for performing such operations.

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  • 43. 

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

    • Stream

    • FileSystemInfor

    • FileInfor

    • File

    Correct Answer
    A. FileSystemInfor
    Explanation
    The correct answer is FileSystemInfor. This class is the most suitable choice because it contains methods that are common to both file and directory manipulation. It provides functionality for accessing and manipulating file and directory information, making it a versatile option for handling file and directory operations.

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  • 44. 

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

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer, which is True, is that the TextReader class in programming represents a reader that is capable of reading a sequence of characters. This class is commonly used for reading text files or other character-based input sources. Therefore, the statement is correct in stating that the TextReader class can indeed read a sequence of characters.

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  • 45. 

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

    • NetWorkStream

    • CryptoStream

    Correct Answer
    A. CryptoStream
    Explanation
    The given answer, "CryptoStream," is correct because the question states that the class mentioned is not part of the "system.IO" namespace but resides within the "System.security" namespace. Among the options provided, only "CryptoStream" belongs to the "System.security" namespace, making it the correct answer.

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  • 46. 

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

    • NetWorkStream

    • CryptoStream

    • BufferStream

    • MemoryStream

    Correct Answer(s)
    A. NetWorkStream
    A. CryptoStream
    Explanation
    The classes NetWorkStream and CryptoStream are not part of the System.IO namespace. The System.IO namespace contains classes for performing input and output operations, such as reading from or writing to files. However, the classes NetWorkStream and CryptoStream are part of the System.Net.Sockets and System.Security.Cryptography namespaces respectively, not System.IO. Therefore, they are not part of the System.IO namespace. The BufferStream and MemoryStream classes, on the other hand, are part of the System.IO namespace.

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  • 47. 

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

    • FileStream

    • FileInfor

    • File

    • FileManipulate

    Correct Answer
    A. FileInfor
    Explanation
    FileInfor is the correct answer because it is a class that can be used for operations such as creating, copying, moving, deleting, and appending to files. It is specifically designed for handling file-related operations and provides methods and properties to perform these tasks efficiently. FileStream is a class used for reading and writing to files, but it does not provide the same level of functionality as FileInfor. FileManipulate is not a valid class and File is a general term that does not represent a specific class for file operations.

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  • 48. 

    The FileInfor class is used to create FileStream Object.

    • True

    • Fasle

    Correct Answer
    A. True
    Explanation
    The FileInfor class is indeed used to create a FileStream object. This class provides information about a specific file, such as its name, size, and path. By using the FileInfor class, developers can easily access and manipulate files using a FileStream object, which allows for reading from and writing to the file. Therefore, the statement "The FileInfor class is used to create a FileStream Object" is true.

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  • 49. 

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

    • CreateDirectoryInfor();

    • CreateDir();

    • CreateDirectory()

    Correct Answer
    A. CreateDirectory()
    Explanation
    The method CreateDirectory() in the Directory class is used to create a new directory. It returns a DirectoryInfo object which can be used to perform operations on the newly created directory, such as getting information about the directory or deleting it. This method is commonly used when you need to create a directory in your code.

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  • Current Version
  • Mar 18, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 13, 2009
    Quiz Created by
    Vietha

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