Hadoop Interview Questions – Set 04

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What is the relation between job and task in Hadoop? In Hadoop, A job is divided into multiple small parts known as the task

Collections Java Interview Questions – Set 04

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What do you know about the big-O notation and can you give some examples with respect to different data structures The Big-O notation simply describes how well an algorithm scales or performs in the worst case scenario as the number of elements in a data structure increases.  The Big-O notation can also be used to … Read more

Software Testing Interview Questions – Set 04

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When should exploratory testing be performed? Exploratory testing is performed as a final check before the software is released. It is a complementary activity to automated regression testing. What is API (Application Programming Interface)? Application Programming Interface is a formalized set of software calls and routines that can be referenced by an application program to … Read more

Data Analytics Interview Questions – Set 04

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 Have you ever created or worked with statistical models? If so, please describe how you’ve used it to solve a business task. As a data analyst, you don’t specifically need experience with statistical models, unless it’s required for the job you’re applying for. If you haven’t been involved in building, using, or maintaining statistical models, … Read more

Blockchain Interview Questions – Set 04

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What type of records can be kept in the Blockchain? Is there any restriction on the same? No, it is not possible to give restriction for keeping records in the blockchain approach. We can put any type of data on a blockchain such as Bank records, health records, images, Facebook messages, etc. Some of the … Read more

Drupal Interview Questions – Set 04

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How will you add custom PHP codes in Drupal pages or blocks? Be default, Drupal doesn’t allow the insertion of PHP codes in its pages. To embed PHP codes, you need to activate a Drupal module called PHP filter. By default, this module remains disabled. How can you drop a table using module in Drupal? … Read more

JSP Java Interview Questions – Set 04

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What are the life-cycle methods of JSP Life-cycle methods of the JSP are: jspInit(): The container calls the jspInit() to initialize the servlet instance. It is called before any other method, and is called only once for a servlet instance. _jspService(): The container calls the _jspservice() for each request and it passes the request and … Read more

DB2 Interview Questions – Set 04

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What is CHECK constraint in DB2? Check constraint is a database rule that checks data integrity. Thus, only values from the domain for the attribute or column are allowed. What is the use of predicate? Predicates are used to enhance the performance of query. What is the use of DB2 Optimizer? DB2 Optimizer is used … Read more

Vue.js Interview Questions – Set 04

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What is the VUE-resource? How would you install the Vue-Resource? The VUE-resource is a plug-in for Vue.js. This plug-in is used with Vue.js to make web requests and handle responses, in which XHMLHttpRequests or JSONP is used. You can use the following yarn or npm command to install VUE-resource: $ yarn add vue-resource $ npm install vue-resource … Read more

Exception Handling Java Interview Questions – Set 04

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 What can prevent the execution of the code in finally block ? and what are the rules for catching multiple exceptions? The death of thread – Use of system.exit() – Turning off the power to CPU – An exception arising in the finally block itself Rules for catching multiple exceptions – A more specific catch … Read more