Questions & Answers

What is Big Data?

Big data is defined as the voluminous amount of structured, unstructured or semi-structured data that has huge potential for mining but is so large that it cannot be processed using traditional database systems. Big data is characterized by its high velocity, volume and variety that requires cost effective and innovative methods for information processing to draw meaningful business insights. More than the volume of the data – it is the nature of the data that defines whether it is considered as Big Data or not.

What do the four V’s of Big Data denote?

What is Automation Testing?

Automation testing or Test Automation is a process of automating the manual process to test the application/system under test. Automation testing involves use to a separate testing tool which lets you create test scripts which can be executed repeatedly and doesn’t require any manual intervention.

Why should Selenium be selected as a test tool?

1.is free and open source

2.have a large user base and helping communities

3.have cross Browser compatibility (Firefox, chrome, Internet Explorer, Safari etc.)

4.have great platform compatibility (Windows, Mac OS, Linux etc.)

5.supports multiple programming languages (Java, C#, Ruby, Python, Pearl etc.)

6.has fresh and regular repository developments

7.supports distributed testing

What is Selenium? What are the different Selenium components?

Selenium is one of the most popular automated testing suites. Selenium is designed in a way to support and encourage automation testing of functional aspects of web based applications and a wide range of browsers and platforms. Due to its existence in the open source community, it has become one of the most accepted tools amongst the testing professionals. Selenium is not just a single tool or a utility, rather a package of several testing tools and for the same reason it is referred to as a Suite. Each of these tools is designed to cater different testing and test environment requirements.

What do you understand by an ETL?

ETL stands for Extract, Transform, and Load. It is an important concept in Data Warehousing systems. Extraction stands for extracting data from different data sources such as transactional systems or applications. Transformation stands for applying the conversion rules on data so that it becomes suitable for analytical reporting. The loading process involves moving the data into the target system, normally a data warehouse.

What is AWS?

AWS stands for Amazon Web Service; it is a collection of remote computing services also known as cloud computing platform. This new realm of cloud computing is also known as IaaS or Infrastructure as a Service.

Explain what is AMI? ?

ETL stands for Extract, Transform, and Load. It is an important concept in Data Warehousing systems. Extraction stands for extracting data from different data sources such as transactional systems or applications. Transformation stands for applying the conversion rules on data so that it becomes suitable for analytical reporting. The loading process involves moving the data into the target system, normally a data warehouse.

What do you understand by an ETL?

AMI stands for Amazon Machine Image. It’s a template that provides the information (an operating system, an application server and applications) required to launch an instance, which is a copy of the AMI running as a virtual server in the cloud. You can launch instances from as many different AMIs as you need.

Why is Java Architectural Neutral?

It’s compiler generates an architecture-neutral object file format, which makes the compiled code to be executable on many processors, with the presence of Java runtime system.

What do you understand by an ETL?

ETL stands for Extract, Transform, and Load. It is an important concept in Data Warehousing systems. Extraction stands for extracting data from different data sources such as transactional systems or applications. Transformation stands for applying the conversion rules on data so that it becomes suitable for analytical reporting. The loading process involves moving the data into the target system, normally a data warehouse.

How Java enabled High Performance?

Java uses Just-In-Time compiler to enable high performance. Just-In-Time compiler is a program that turns Java bytecode, which is a program that contains instructions that must be interpreted into instructions that can be sent directly to the processor.

What are the supported platforms by Java Programming Language?

Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX/Linux like HP-Unix, Sun Solaris, Redhat Linux, Ubuntu, CentOS, etc.

how the buffer is used in Amazon web services?

The buffer is used to make the system more robust to manage traffic or load by synchronizing different component. Usually, components receive and process the requests in an unbalanced way, With the help of buffer, the components will be balanced and will work at the same speed to provide faster services.


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