Technology Questions

B+ tree. Because in B+ tree, all the data is stored only in leaf nodes, that makes searching easier. This corresponds to the records that shall be stored in leaf nodes

Batch DL/I

MPP Mode - (Message Processing Program)

BMP Mode - (Batch Message Processing)

Class hierarchies promote reuse in two ways. They are code sharing and interface sharing.

- B2B (Business-to-Business)   :

In B2B, companies transact with each other. This includes the companies selling their product to wholesalers, distributors, etc

- B2C (Business-to-Consumer) :

This is usually when average businesses transact with the customer. This is done through the shopping cart softwares and the amount involved in the transactions is usually low.

- C2B (Consumer-to-Business) :

In this, a consumer places the product on the net. The companies willing to buy this product bid for it. The comsumer can then decide, depending upon the bid, which company to sell it to. 

- C2C (Consumer-to-Consumer):

These kind of transactions are usually done at an individual level. Payments can be done with the help of online systems like PayPal.

QA stands for QUALITY ASSURANCE. QA team assures the quality by monitor the whole development process. QA tracks the outcomes and adjusting process to meet the expectation.

The role of Quality Assurance is discussed below:

- QA team is responsible for monitoring the process to be carried out for development.

- Responsibilities of QA team are planning testing execution process.

- QA Lead creates the time tables and agrees on a Quality Assurance plan for the product.

- QA team communicated QA process to the team members.

- QA team ensures traceability of test cases to requirements.

Stack. Because of its LIFO (Last In First Out) property it remembers its ‘caller’ so knows whom to return when the function has to return. Recursion makes use of system stack for storing the return addresses of the function calls. Every recursive function has its equivalent iterative (non-recursive) function. Even when such equivalent iterative procedures are written, explicit stack is to be used.