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CSE MCQs :: Ext JS

  1. What are the advantages of using Ext JS.
  2. A.
    Streamlines cross-platform development across desktops, tablets, and smartphones for both modern and legacy browsers
    B.
    Increases the productivity of development teams by integrating into enterprise development environments via IDE plugins
    C.
    Reduces the cost of web application development
    D.
    All of the above mentioned

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  3. Below code is an example of:

    Ext.create('Ext.data.Store',
         model:'StudentDataModel', proxy : { type :'rest', actionMethods :{
              read :'POST' // Get or Post type based on requirement
         },
         url :'restUrlPathOrJsonFilePath',// here we have to include the rest URL path which fetches data from database or Json file path where the data is stored 

    reader:{ type :'json', // the type of data which is fetched is of JSON type root :'data' },
    }
    });
  4. A.
    Local Proxy
    B.
    Client Proxy
    C.
    Server Proxy
    D.
    Ajax Proxy

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  5. What are the main library files to add in Html page?
  6. A.
    Ext-all.js
    B.
    Ext-all.css
    C.
    Both A and B
    D.
    All of these

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  7. What are the different type of alert boxes available in Ext JS?
  8. A.
    Ext.MessageBox.alert();
    B.
    Ext.MessageBox.confirm();
    C.
    Ext.MessageBox.wait();
    D.
    All of these

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  9. What are the prerequisites for learning ExtJS?
  10. A.
    First and most interest on self-learning & work on open source libraries
    B.
    Good knowledge on HTML , CSS, Javascript
    C.
    Drive through EXTJS API docs & practice samples
    D.
    All the above

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  11. What are features of Ext JS?
  12. A.
    Pre-Integrated and Tested UI Components
    B.
    Rich Data Analytics
    C.
    Code compatibility of new versions with the older one
    D.
    All of the above

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  13. What are the limitations of using Ext JS.
  14. A.
    The size of the library is large around 500 KB which makes initial loading time more and makes application slow
    B.
    HTML is full of tags makes it complex and difficult to debug
    C.
    According to general public license policy, it is free for open source applications but paid for commercial applications
    D.
    All of the above

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  15. What are EXT JS components?
  16. A.
    Window
    B.
    Form
    C.
    Message Box
    D.
    All of the above

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  17. What are the concepts in JavaScript library?
  18. A.
    JQuery
    B.
    Qooxdoo
    C.
    Dojo
    D.
    All of these

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