Practice questions, with answers and explanations included

Write an SQL query to increase the salary of all employees by 10 percent using UPDATE.

Checking whether a project is technically possible and economically profitable is part of which activity?

Explain the four layers of the TCP/IP model and the primary function of each.

Write an SQL query to change the zone from 'North' to 'East' for employees whose city is 'Jaipur'.

Designing the map of the web application site, the database, and the page structure is part of which phase?

A malicious program that requires no host application and floods the hard disk by making copies of itself is called a:

Write an SQL query to delete the record of the student whose roll number (rno) is 13.

Creating the backend database, developing the frontend, and establishing data connectivity between them is part of which phase?

A program that appears useful but creates a backdoor allowing hacker access is called a:

What is the value of 17 % 5 in Java (the remainder operator)?

Testing each page and feature of an application, finding and fixing bugs, is part of which phase?

An attack that floods a machine/network with excessive requests to make it unavailable to legitimate users is called:

What is the value of 20 % 3 in Java (the remainder operator)?

Project Management is the process of achieving project objectives through activities defined within a time frame using knowledge, skills, tools and techniques.

Stealing personal information through fraudulent emails or fake links is called:

What is the value of 9 % 2 in Java (the remainder operator)?

Name the four main phases in the development of a web-based application.

Seeking personal information like OTP, PIN, or CVV through a phone call is known as:

What is the value of 14 % 4 in Java (the remainder operator)?

What two aspects of feasibility should be checked in the Requirement Definition Phase?