Briefly describe primary key, foreign key and index in relational database and their relationship. Do you think database indexing always makes applications faster? Explain your answer.
What are the different types of transmission media used for data communication? Explain their advantages and disadvantages.
What is SaaS and multi-tenant architecture? How are they related? What are the advantages and disadvantages of multi-tenancy? For a multi-vendor e-commerce application, you can choose a database architecture where you can put all the vendors in a single database or each vendor in a separate database. Which architecture will you follow and why?
What do you understand about software quality assurance (SQA)? While purchasing a software system for your company, as a SQA team leader what aspects will you look into for a quality software.
Write a program in any language to find the sum of rows and columns of a m x n matrix, where m and n is taken input from the user. Give the output in the following format:
Sample Input matrix:
134224533221
Sample Output:
1342102453143225126911
Write a program in any language to find the prime numbers between 1.. n, where n is taken as user input.
Sample input:
Enter value of n: 20
Prime Numbers: 2, 3, 5, 7, 11, 13, 17, 19,