Question.1 Tell me the importance of a flow chart? Answer: The flow chart gives a clear graphical representation of an implemented process. This makes the system simple to understand for all persons involved in the project. Question.2 Explain briefly the use case model? Answer: The use case model requires a..
Question.1 What is the purpose of garbage collection in Java, and when is it used? Answer: The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their resources can be reclaimed and reused. A Java object is subject to..
Question.1 What is Hadoop? Answer: Hadoop is a distributed computing platform written in Java. It incorporates features similar to those of the Google File System and of MapReduce. For some details, see HadoopMapReduce. Question.2 What platforms and Java versions does Hadoop run on? Answer: Java 1.6.x or higher, preferably from..
Question.1 What is the Java API? Answer: The Java API is a large collection of ready-made software components that provide many useful capabilities, such as graphical user interface (GUI) widgets. Question.2 Describe the principles of OOPS? Answer: There are three main principals of oops which are called Polymorphism, Inheritance and..
Question.1 What is a database? Answer: Database offer a single point of mechanism for storing and retrieving information with the help of tables. Table is made up of columns and rows where each column stores specific attribute and each row displays a value for the corresponding attribute. It is a..
Question.1 What is Consistent Backup? Answer: A Consistent backup is one in which the files being backed up contain all changes upto the same system change number (SCN). Question.2 What is fractured Block? Answer: Because the database continues writing to the file during an online backup, there is the possibility..
Question.1 What is a Data Warehouse? Answer: A Data Warehouse is a collection of data marts representing historical data from different operational data source (OLTP). The data from these OLTP are structured and optimized for querying and data analysis in a Data Warehouse. Question.2 What is a Data mart? Answer: ..
Question.1 Explain the purpose of load testing? Answer: Load testing is used to verify that the application operates as expected during peak usage periods or when it is utilized by a large amount of simultaneous users or handles a heavy load of transactions. Question.2 Which LoadRunner protocol is used to..
Question.1 What is the difference between the QA and software testing? Answer: The role of QA (Quality Assurance) is to monitor the quality of the process to produce a quality of a product. While the software testing, is the process of ensuring the final product and check the functionality of..
Question.1 Which TCP/IP port does SQL Server run on? How can it be changed? Answer: SQL Server runs on port 1433. It can be changed from the Network Utility TCP/IP properties. Question.2 What are the difference between clustered and a non-clustered index? Answer: A clustered index is a special type..