Prepare Interview

Exams Attended

Mock Exams

Make Homepage

Bookmark this page

Subscribe Email Address

SDLC Interview Questions and Answers

Intermediate / 1 to 5 years experienced level questions & answers

Ques 1. Describe waterfall software development life cycle model.

Waterfall is a sequential and non-iterative SDLC model which describes the flowing of phases downwards one by one. The process does not start a phase unless the previous phase is completed once and for all completely. The waterfall model consists of the following phases:

    • Requirements gathering
    • Design
    • Implementation
    • Testing
    • Maintenance 

Is it helpful? Add Comment View Comments
 

Ques 2. Briefly describe the phases in the waterfall model.

  • Requirements gathering: All the requirements are gathered and analysis is performed for the complete system.
  • Design: Various design models are created for the complete system after the requirements gathering phase has been completed and ended.
  • Implementation: The complete system is implemented once the design for the system has been frozen.
  • Testing: The complete system is tested after all the construction and integration has completed.
  • Maintenance: Post implementation support carries out after the implementation of the system. 

Is it helpful? Add Comment View Comments
 

Ques 3. Explain the strengths of the waterfall model.

The strengths of the waterfall model are:

  • No planning needed
  • Works well for small projects with fixed and clear requirements.
  • Lesser cost as planning overhead is less
  • Quickest delivery of the complete system 

Is it helpful? Add Comment View Comments
 

Ques 4. Briefly describe the phases in the Incremental model.

Phases of the incremental model are the same as waterfall i.e. Requirements, design, implementation, testing, and maintenance.

However, instead of following the waterfall once and for all linearly, the incremental model takes a different approach. These phases are repeated incrementally as business value is delivered incrementally as well.

For every single phase and increment a waterfall model is followed. The waterfall model is then put in a cycle of increments along with verification of requirements, and design. 

Is it helpful? Add Comment View Comments
 

Ques 5. Briefly describe the phases in the Spiral model.

Phases in spiral model:

a) System requirements are identified in detail.
b) An initial design is created for the new system based on the requirements in previous phase. All feasible and technical approaches are identified and analyzed to build the system. The design is done on a very broader and deeper scope to identify and deal with potential risks in the system.
c) A prototype is created depicting a few features of the system.
d) A second prototype is created using 4 steps: Evaluate first prototype, define requirements for second prototype, planning and designing for second prototype, constructing and testing second prototype.

Is it helpful? Add Comment View Comments
 

Ques 6. Describe tailored software development life cycle model.

There is no specific SDLC model that can be used for all types of projects and situations. If none of the popular SDLC models suit a specific project then, pick the closest matching SDLC model and modify it as per needs. Identify how important is risk assessment and use spiral's risk assessment methodology if it's a risk-critical project.

The project should be delivered in small chunks, ideally merging the incremental model with the V-shaped model. One must spend ample time choosing the right model or customizing one to suit a project for its successful and efficient completion. 

Is it helpful? Add Comment View Comments
 

Ques 7. What is SRS or Software Requirements Specification?

A Software Requirements Specification (SRS) is a document that explains what the software will accomplish and how it will work. It is a formal report that serves as a representation of software and allows customers to assess whether it (SRS) meets their needs. It also outlines the functionality that the product must have in order to meet the needs of all stakeholders. This report is created after all requirements have been solicited and analyzed, and it serves as a foundation for software engineering tasks.

Is it helpful? Add Comment View Comments
 

Ques 8. What is a Feasibility Study?

As the name implies, a feasibility study is an analysis or measurement of a software product in terms of how advantageous product development will be for the business in terms of practicality. It determines whether the project is legally, technically, and commercially feasible.

Is it helpful? Add Comment View Comments
 

Ques 9. Explain HLD (High-Level Design).

It refers to the general design of the system. It describes the application's overall description and architecture. It includes a system architecture description, database design, a brief overview of systems, services, platforms, and module relationships. From the primary module to all submodules, it creates the overall architecture of the system. Architects will provide the High-Level Design in order to begin the development process. This is quite helpful for developers in comprehending the system's flow.

Is it helpful? Add Comment View Comments
 

Ques 10. Explain LLD (Low-Level Design).

LLD (Low-LevelLevel Design) is a term that refers to the process of detailing. It provides a full description of each module, including actual logic for each system component and a thorough examination of each module's specifications. Every program undergoes logic design, which is subsequently recorded as program specifications. A unit test plan is prepared for each software. The micro-level or intricate design is another name for it. After the High-Level Design, the Low-Level Design is created.

Is it helpful? Add Comment View Comments
 

Ques 11. Explain prototyping in SDLC process.

Building software application prototypes that display the capabilities of the product under development, but may not have the exact logic of the original software, is referred to as software prototyping. It's built, tested, and revised until it's deemed suitable as a prototype. It also serves as a foundation for the final system or program. It's best used in situations where the project's requirements aren't fully understood. Software prototyping is gaining popularity as a software development strategy because it allows for an early understanding of customer requirements.

Is it helpful? Add Comment View Comments
 

Ques 12. What do a Software Project Manager's responsibilities entail?

The Software Project Manager is in charge of seeing the project through to completion. The Software Project Manager is responsible for ensuring that the entire team follows a methodical and well-defined approach to software development. They also handle project planning, tracking project status, resource management, and risk management.

Is it helpful? Add Comment View Comments
 

Ques 13. What is the main aim of prototyping?

It mainly offers a mini-model of the proposed system where the minimum required features are implemented and presented to the customer/client.

Is it helpful? Add Comment View Comments
 

Ques 14. What are the limitations of the Agile Model?

  • It is not a useful method for small development projects.
  • It requires an expert to take important decisions in the meeting.
  • The cost of implementing an agile method is a little more compared to other development methodologies.
  • The project can easily go off track if the project manager is not clear about what outcome he/she wants.

Is it helpful? Add Comment View Comments
 

Most helpful rated by users:

Related interview subjects

REST API interview questions and answers - Total 52 questions
Unix interview questions and answers - Total 105 questions
SDLC interview questions and answers - Total 75 questions
Apache Kafka interview questions and answers - Total 38 questions
Language in C interview questions and answers - Total 80 questions
ANT interview questions and answers - Total 10 questions
Nature interview questions and answers - Total 20 questions
Ruby On Rails interview questions and answers - Total 74 questions
Business Analyst interview questions and answers - Total 40 questions
HTML interview questions and answers - Total 27 questions
Hadoop interview questions and answers - Total 40 questions
iOS interview questions and answers - Total 52 questions
HR Questions interview questions and answers - Total 49 questions
C++ interview questions and answers - Total 142 questions
Cryptography interview questions and answers - Total 40 questions
JSON interview questions and answers - Total 16 questions
CSS interview questions and answers - Total 74 questions
XML interview questions and answers - Total 25 questions
Ethical Hacking interview questions and answers - Total 40 questions
Android interview questions and answers - Total 14 questions
ChatGPT interview questions and answers - Total 20 questions
Data Structures interview questions and answers - Total 49 questions
Zend Framework interview questions and answers - Total 24 questions
Fashion Designer interview questions and answers - Total 20 questions
©2023 WithoutBook