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 Technology Questions

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Q:

What are the different objects used in JavaScripts?

Answer

JavaScripts uses a hierarchical structure that applies to the objects in a document. There are some objects that show the relationship of one object to another using the language.

Window object: This is the topmost object in the hierarchy. It represent the content area of browser window that consists of HTML documents. Each frame is also a window that has some actions inside it.

 Document object: This object gets loaded in a window and consists of objects of different kind in the model. It consists of the content that will be written in the script.

 Form object: Form objects are used for more interaction with the users. It represents the form elements inside <FORM>...</FORM> tag.

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Subject: Web Technology

0 1993
Q:

What is different among String, StringBuffer, StringBuilder?

Answer

String class objects are immutable objects and they represents strings( sequence of characters)


StringBuffer class objects are mutable objects representing strings and they are Thread safe


StringBuild class objects are also mutable objects representing strings and they are not Thread safe

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Subject: Java

0 1993
Q:

Whats a struct?

Answer

A struct is a special C data type that encapsulates other pieces of data into a single cohesive unit. Like an object, but built into C.

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Subject: Application Development

0 1992
Q:

List out few of the applications that make use of Multilinked Structures?

Answer

Sparse matrix,


Index generation

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Subject: Technology

1 1991
Q:

Why cannot you run standard Java byte code on Android ?

Answer

Android uses Dalvik Virtual Machine (DVM) which requires a special bytecode. We need to convert Java class files into Dalvik Executable files using an Android tool called "dx". In normal circumstances, developers will not be using this tool directly and build tools will care for the generation of DVM compatible files.

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Subject: Application Development
Job Role: Analyst , IT Trainer

1 1991
Q:

How would you automatically transfer your visitors to a new web page?

Answer

- You can do it with the help of meta tag mentioned below: 


<META HTTP-EQUIV="Refresh" CONTENT="2"; URL="https://www.yoursite.com"> 


- Place this tag between <HEAD></HEAD> . 


- It will load yousite.com in 2 seconds.

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Subject: Application Development

0 1989
Q:

What is the relationship between SOA and cloud architecture?

Answer

Service oriented architecture (SOA) is an architectural style that supports service oriented methodology that is being added in the cloud architecture as a mandatory component. Cloud architecture support the use of on-demand access to resources and it provides lots of other facilities that are being found in SOA as well. SOA makes these requirements optional to use. But, to get the full functionality and more performance based efficiency there is a requirement for the mixture of SOA and cloud architecture.

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Subject: Cloud Computing

0 1988
Q:

What are the principles in providing the security for the computer programs?

Answer

- The principle of least privilege is used to provide more security to the computer programs. 


- The principle allows the designing of the program such that any unauthorized access is not allowed and only the person who owns the program will be able to access it. 


- The services provided should be able to access only those products that need the services. 


- Web servers that are involved in responding the queries of the web users provide only accessing to the HTML files that will serve the purpose of the programs. 


- Computer programs should be made such that it provides secure features of logging into the program with proper authentication.

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Subject: Web Technology

0 1986