Programming Foundation & SDLC

What is the purpose of variables in programming?

• Variables are unnecessary and should be avoided in programming

• Variables are only used for mathematical calculations

• Variables are used for decorative purposes in code

• Variables are used to store and manipulate data.

Name three common data types used in programming.

• float

• integer, string, boolean

• array

• character

Explain the difference between 'if' and 'else if' statements in control structures.

• The 'else if' statement is used to execute code regardless of the condition

• The 'if' statement can only be used once in a program

• The 'if' statement is used to execute a block of code if a specified condition is true. The 'else if' statement is used to specify a new condition if the first condition is false.

• The 'if' statement is used for looping while 'else if' is used for conditional statements

What is the Software Development Life Cycle (SDLC) and why is it important?

• SDLC is a type of computer hardware

• SDLC is only used for testing software

• The Software Development Life Cycle (SDLC) is a process used by software development teams to design, develop, and test high-quality software. It consists of several phases such as planning, analysis, design, implementation, testing, and maintenance. SDLC is important because it helps ensure that software projects are completed on time, within budget, and meet the requirements of stakeholders.

• SDLC consists of only one phase

List three common debugging techniques used by programmers.

• Manual code review

• Code refactoring

• Print statements, Debugger tools, Reviewing error messages

• Unit testing

What is a Version Control System (VCS) and why is it important in software development?

• A VCS is crucial in software development for tracking changes, enabling collaboration, bug tracking, and version control.

• A VCS is used for creating backups of code

• VCS helps in generating new software ideas

• VCS is primarily used for designing user interfaces

What is the role of 'switch' statement in control structures?

• Switch statement is only used for mathematical calculations

• The 'switch' statement is used for looping through arrays

• Switch statement is used to define classes in object-oriented programming

• The role of 'switch' statement is to execute different code blocks based on different conditions.

Explain the concept of 'testing' in the SDLC.

• Testing is the final step in the SDLC process

• Testing involves only checking for spelling errors

• Testing in the SDLC is the process of evaluating a software application to ensure it meets requirements and functions correctly.

• Testing is not necessary in the SDLC

What is the difference between 'break' and 'continue' statements in control structures?

• The 'break' statement skips the current iteration of a loop, while the 'continue' statement exits the loop or switch statement.

• The 'break' statement continues the loop iteration, while the 'continue' statement exits the loop or switch statement.

• Both 'break' and 'continue' statements exit the loop or switch statement.

• The 'break' statement exits the loop or switch statement, while the 'continue' statement skips the current iteration of a loop.

Describe the 'Planning' phase in the SDLC.

• The 'Planning' phase involves coding the entire project without any prior preparation.

• In the 'Planning' phase, the team skips defining project scope and objectives.

• The 'Planning' phase involves defining project scope, objectives, deliverables, timelines, creating a project plan, identifying resources, estimating costs, and establishing communication channels.

• Planning phase focuses solely on estimating costs without considering resources.