Technology Questions

Q:

What is the difference between the functions unlink and unset?

Answer

unlink()-deletes the given file from the file system.
unset() -makes a variable undefined.

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Q:

What are the features added in iOS 9 ?

Answer

  • Intelligent Search and Siri- Intelligent Search is an excellent mechanism to learn user habits and act on that information- open apps before we need them, make recommendations on places we might like and guide us through our daily lives to make sure we’re where we need to be at the right time.
    Siri is a personal assistant to the users, able to create contextual reminders and search through photos and videos in new ways. Swiping right from the home screen also brings up a new screen that houses “Siri Suggestions,” putting favorite contacts and apps right on your fingertips, along with nearby restaurant and location information and important news.

  • Deeper search capabilities can show results like sports scores, videos, and content from third-party apps, and you can even do simple conversions and calculations using the search tools on your iPhone or iPad.

  • Many of the built-in apps have been updated.
    ✓ Notes includes new checklists and sketching features
    ✓ Maps now offers transit directions
    ✓ Mail allows for file attachments
    ✓ Apple Pay is being improved with the addition of store credit cards and loyalty cards
    ✓ Leading “Passbook” to be renamed to “Wallet” in iOS 9.

  • San Francisco font, wireless CarPlay support

  • An optional iCloud Drive app, built-in two-factor authentication and optional longer passwords for better security.

  • Performance improvements

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Q:

What is the difference between Load Testing and Performance Testing?

Answer

Basically Load, Stress and Performance Testing are the same. However, Load testing is the test to check the users’ response time of number of users of any one scenario of the application whereas Performance Testing is the test to check the user response time for multiple scenario of the same application.

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Subject: QA Testing

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Q:

What is the functionality of md5 function in PHP?

Answer

Calculate the md5 hash of a string. The hash is a 32-character hexadecimal number. I use it to generate keys which I use to identify users etc. If I add random no techniques to it the md5 generated now will be totally different for the same string I am using.

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Q:

What is the Fail-safe approach?

Answer

- Fail-safe approach defines the level that divides the security such that it is safe even in case the system is failed.


- The fail safe approach doesn’t allow an attacker to take the advantage by breaking in the system and crashes out.


- This approach allows the web server to perform the routines even if the system runs out of the memory in case of any attack. 


- The system in attacks doesn’t skip the access to the control check or it doesn’t skip serving any document requested. 


- Fail safe approach can force the web server to run of the memory and have a DoS attack.

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Subject: Web Technology

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Q:

Name any three PL/SQL exceptions?

Answer

Too_many_rows.


No_Data_Found.


Zero_Error.


 

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Subject: SQL

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Q:

What is the Advantage of AngularJS?

Answer

These are the advantages of AngularJS:



  • AngularJS provides capability to form Single Page Application in a very clean and maintainable method.

  • AngularJS provides data binding capability to HTML therefore giving user a rich and responsive experience.

  • AngularJS code is unit testable.

  • AngularJS uses dependency injection and build use of separation of concerns.

  • AngularJS provides reusable components.

  • AngularJS helps developer to writes less code and gets more functionality.

  • AngularJS, views are pure HTML pages, and controllers written in JavaScript do the business process.

  • AngularJS applications will run on all major browsers and good phones together with android and iOS based mostly phones/tablets.

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Subject: Web Technology

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Q:

What is a .htacces file

Answer

 .htaccess is a configuration file running on Apache server.These .htaccess file used to change the functionality and features of apache web  server .

 e.g   .htaccess file used for url rewrite .

         .htaccess file used to make the site password protected.

         .htaccess file can restrict  some ip addresses ,so that on restricted ip adresses  site will not open.

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