Technology Questions

Q:

What are type safe function pointers?

A) Delegates B) Break points
C) Both A and B D) None
 
Answer & Explanation Answer: A) Delegates

Explanation:

A delegate declares a ref type that references a named of anonymous method. Delegates are secure and type-safe.

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Filed Under: .NET

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Q:

What is the scope resolution operator?

Answer

Scope resolution operator allows a program to reference an identifier in the global scope that is hidden by another identifier with the same name in the local scope.

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Subject: C++

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Q:

During processing of a VSAM file, some system error occurs and it is subsequently unusable What do you do?

Answer

Run VERIFY.

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Q:

What does an HTML tag do?

A) It specifies formatting and layout instructions for your web page B) It hides programming instructions from view
C) It determines the organizational structure of your Web site D) It connects your web site to an operating environment
 
Answer & Explanation Answer: A) It specifies formatting and layout instructions for your web page

Explanation:
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Filed Under: Web Technology

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Q:

What is the difference between _construct() and _destruct() methods in php?

Answer

These two methods are bulid-in methods  in php. with  construct() we can overwride the parent class method. The inverse of the __construct() PHP capacity while making another class, is the __destruct() technique. The __destruct() technique will consequently keep running, after you've completed with the PHP class.

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Subject: PHP
Job Role: Software Architect

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Q:

What is Binary Portability Testing?

Answer

Testing an executable application for portability across system platforms and environments, usually for conformation to an ABI specification.

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Subject: QA Testing

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Q:

Difference between Embeded SQL and Dynamic SQL?

Answer

Static (embedded) SQL:


1.In static SQL how database will be accessed is predetermined in the embedded SQL statement.


2.It is more swift and efficient.


3.SQL statements are compiled at compile time.


4.Parsing, validation, optimization, and generation of application plan are done at compile time.


5.It is generally used for situations where data is distributed uniformly.


6.EXECUTE IMMEDIATE, EXECUTE and PREPARE statements are not used.


7. It is less flexible 


 


Dynamic (interactive) SQL:


1.In dynamic SQL, how database will be accessed is determined at run time.


2.It is less swift and efficient.


3.SQL statements are compiled at run time.


4.Parsing, validation, optimization, and generation of application plan are done at run time.


5.It is generally used for situations where data is distributed non-uniformly.


6.EXECUTE IMMEDIATE, EXECUTE and PREPARE statements are used.


7.It is more flexible.

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Q:

The SQL SELECT statement is capable of

A) Projection B) Selection
C) Protection & Security D) Both A & B
 
Answer & Explanation Answer: D) Both A & B

Explanation:
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Filed Under: SQL
Exam Prep: AIEEE , Bank Exams , CAT
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