Sonali & Janata Bank — Officer (IT) — Written Exam: 2020 (DU)প্রশ্ন ও সমাধান

Inheritance is one of important issues for any object oriented programming language. The main advantage of Inheritance is the ability to reuse the code. Explain in brief different types of Inheritance.

Queue is an abstract data structure. A queue is open at both its ends. One end is always used to insert data (enqueue) and the other is used to remove data (dequeue). Write the steps of Enqueue Operation of Queue.

There are no well-defined standards for writing algorithms. Efficiency of an algorithm depends on several factors. Similarly, complexity of an algorithm also depends of several factors. Describe the algorithm complexity factors.

A transaction consists of a sequence of query and/or update statements. SQL statement must be required to end the transaction. List the SQL statements, required to end the transaction and also write their functions.

An employee's total weekly pay is calculated by multiplying the hourly wage and number of regular hours plus any overtime pays which in turn is calculated as total overtime hours multiplied by 1.5 times the hourly wage. Write a program that takes as inputs the hourly wage, total regular hours, and total overtime hours and prints an employee's total weekly pay.

Usually, recursion involves a function calling itself until specified condition is met and it is very useful to find out the factorial. Write a recursive algorithm to find the factorial of a number.

Operating system (OS) scheduling is the key concept of multiprogramming. List and briefly define the major types of OS scheduling.

Make a list of banking software used in Bangladesh. List the essential features for successful Banking Software and Apps.

RFID has huge applications in business, especially in supply chain management and toll collection system. Show the basic working principle of RFID in brief.

Make a list of LTE Network elements.

Main components of SQL are DDL (Data definition Language), DML (Data Manipulation Language) and DCL (Data Control Language). Give some examples of DDL, DML and DCL commands.

Insertion sort is a simple sorting algorithm. Write a program to sort some given numbers using insertion sort algorithm.

The primary function of the Transmission Control Protocol (TCP) is to turn an unreliable network into a reliable network that is free from lost and duplicate packets. What are the functions performed by TCP to make a network more reliable?