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MCQs

Total Questions : 10
Question 1. What are the advantages of using Ext JS.
  1.    Streamlines cross-platform development across desktops, tablets, and smartphones for both modern and legacy browsers
  2.    Increases the productivity of development teams by integrating into enterprise development environments via IDE plugins
  3.    Reduces the cost of web application development
  4.    All of the above mentioned
 Discuss Question
Answer: Option D. -> All of the above mentioned




Question 2. 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' },}});
  1.    Local Proxy
  2.    Client Proxy
  3.    Server Proxy
  4.    Ajax Proxy
 Discuss Question
Answer: Option A. -> Local Proxy




Question 3. What are the prerequisites for learning ExtJS?
  1.    First and most interest on self-learning & work on open source libraries
  2.    Good knowledge on HTML , CSS, Javascript
  3.    Drive through EXTJS API docs & practice samples
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above




Question 4. What are the main library files to add in Html page?
  1.    Ext-all.js
  2.    Ext-all.css
  3.    Both A and B
  4.    All of these
 Discuss Question
Answer: Option C. -> Both A and B




Question 5. What are the different type of alert boxes available in Ext JS?
  1.    Ext.MessageBox.alert();
  2.    Ext.MessageBox.confirm();
  3.    Ext.MessageBox.wait();
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these




Question 6. What are major Web browsers supported by Ext JS framework?
  1.    Windows Internet Explorer version 6 and later
  2.    Mozilla Firefox version 1.5 and later (PC and Macintosh)
  3.    Apple Safari version 2 and later
  4.    Opera version 9 and later (PC and Mac)
 Discuss Question
Answer: Option D. -> Opera version 9 and later (PC and Mac)




Question 7. What are the limitations of using Ext JS.
  1.    The size of the library is large around 500 KB which makes initial loading time more and makes application slow
  2.    HTML is full of tags makes it complex and difficult to debug
  3.    According to general public license policy, it is free for open source applications but paid for commercial applications
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above




Question 8. What are features of Ext JS?
  1.    Pre-Integrated and Tested UI Components
  2.    Rich Data Analytics
  3.    Code compatibility of new versions with the older one
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above




Question 9. What are the concepts in JavaScript library?
  1.    JQuery
  2.    Qooxdoo
  3.    Dojo
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these




Question 10. What are EXT JS components?
  1.    Window
  2.    Form
  3.    Message Box
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above




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