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Interview Questions and Answers for 'Cogent infotech' - 9 question(s) found - Order By Newest

Very frequently asked.Usually among first few questions.
  Q1. What is MVC ? Design
Anonymous
Ans. MVC is a Design Pattern that facilititates loose coupling by segregating responsibilities in a Web application

1. Controller receives the requests and handles overall control of the request
2. Model holds majority of the Business logic, and
3. View comprise of the view objects and GUI component

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Frequently asked to fresh graduates.
  Q2. Difference between Process and Thread ?Operating System
Anonymous
Ans. Process is a program in execution whereas thread is a separate path of execution in a program.

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   Like      Discuss      Correct / Improve     java   threads   multi threading   operating system   basic interview question     Walt Disney  Goldman Sachs  Nuance  Bank of America  Cogent Infotech  Sogeti  Siemens  Veritas  Vudu  One97 Communications  Riverbed Technology  TK20  MZ  Utopia  LogicMonitor  Lockheed Martin  Lab49  IGATE  Intel Corp  Verint Systems  Kronos  Amazon.com  Citrix  Persistent Systems      basic        frequent


 Q3. In which cases using SOAP is preferred over REST ?Web Service2017-04-27 18:08:18

Ans. SOAP services are better in case we need to establish a formal and detail contract with the client or callers and hence suitable for

1. Services published for much wider unknown audience
2. Require large input payload
3. Requiring different level for authentication

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   Like      Discuss      Correct / Improve     soap vs rest  soap  rest       Cogent Infotech Corp


Frequently asked at HCL Technologies ( Based on 3 feedback )
  Q4. Difference between Checked and Unchecked exceptions ?Core Java
Anonymous
Ans. Checked exceptions are the exceptions for which compiler throws an errors if they are not checked whereas unchecked exceptions are caught during run time only and hence can't be checked.

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 Q5. Difference between Inner and Outer Join ?Database
Admin
info@buggybread.com
Ans. Inner join is the intersection of two tables on a particular columns whereas Outer Join is the Union of two tables.



 Help us improve. Please let us know the company, where you were asked this question :   

   Like      Discuss      Correct / Improve     sql   joins   inner join   outer join     Hewlett Packard (HP)  Cogent Infotech Corp      basic        frequent


 Q6. What is Left Outer Join ?Database2018-01-05 15:25:44

 This question was recently asked at 'NIIT Tech,Cogent Infotech Corp'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve     database   database joins   left outer join  sql     NIIT Tech  Cogent Infotech Corp


 Q7. Difference between Left and Inner Join ?SQL2018-05-24 13:24:47

 This question was recently asked at 'Canopy Tax,Cogent Infotech Corp'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve     sql     Canopy Tax  Cogent Infotech Corp


 Q8. If SOAP is more secure than Rest, Why many applications today use Rest ?Web Service2018-07-04 16:21:38

Ans. SOAP supports only xml whereas Rest support many other formats.

Rest services are very light weight compared to SOAP.

SOAP services are code heavy as they require creation. of stubs and skeltons.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like      Discuss      Correct / Improve     soap  rest  soap vs rest     Deloitte  Cogent Infotech Corp


 Q9. create an SQL query across multiple tables involving outer joins Database2019-01-27 16:06:28

 This question was recently asked at '1-800 Contacts,Cogent Infotech Corp'.This question is still unanswered. Can you please provide an answer.


 Help us improve. Please let us know the company, where you were asked this question :   

   Like      Discuss      Correct / Improve     sql query  database  outer joins     1-800 Contacts  Cogent Infotech Corp




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