SDLC Interview Questions

SDLC Interview Questions

It is a very tedious task to develop software without any kind of architect. To solve this problem, SDLC comes into play. SDLC is an acronym for the Software Development Life Cycle, also known as the Software Development Process. SDLC is a method that comprises of a set of actions to create or edit numerous software products. Thus, people with an interest in software development must be aware of top SDLC Interview Questions and Answers.

Sometimes, it can be difficult to build large complex software. SDLC has a huge system devoted to overcoming such problems that can possibly occur otherwise. There are 7 junctures namely planning, requirements, designing and prototyping, software development, deployment, testing and operations, and maintenance. These methods followed are genius in their approach and work as efficiently as possible. SDLC uses many strategies and practices to lessen the amount of risk and direct toward success.

It includes an absolutely enhanced approach to provide knowledge of how one can perform different advancements such as altering, replacing, editing, developing, and maintaining a particular software. A complete thorough model used and the software quality improvement is known as the life cycle.

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Below are the list of Best SDLC Interview Questions and Answers

SDLC is short for the Software Development Life Cycle. It is basically a software development process, which provides a clear architecture or model for the management and creation of the software. It helps in strategizing our actions based on our desired plan.

There are five models that are being used in SDLC namely:

  • Waterfall model
  • Rapid Application Development(RAD) model
  • Iterative model
  • Spiral model
  • Agile model

Some of the major benefits of using the V-model

  • It provides us with the early growth of test plans, making it more successful.
  • It works fairly well even with low scale projects with fewer requirements.
  • It is very straightforward and requires comparatively fewer efforts.
SDLC comprises of complete analysis and verifying of a model. It goes through various phases, selecting the best strategies and solutions for you.On the other hand, STLC only performs the validation of a given model.

When a model goes through various rectifications for the search of errors existing in the software. There are many techniques now for this particular phase and can be customized as per one's needs.

The design phase aids us to specify requirements concerning with software and hardware. It also provides with the facility of describing the complete structure or architecture of the given project.

Waterfall model follows a very systematic approach. It does not direct elsewhere, following in a particular sequence. It only begins with the next stage once the former stage has been completed. This method follows a very clear path from the beginning to end. Each step is effectively planned. There are various steps involved in this model making it even more efficient.

It is short for Low-level Designs.It is short for High-level Designs.
This is a very descriptive design plan that aims in helping the development process.This is used, to begin with the development process and is given by architects.

The various advantaged of the agile model in an SDLC are as follows;

  • It is fairly simple and requires less effort to learn, use and execute.
  • It has speedy deliverables which are scheduled by looking on to sprints which ensure best quality deliverables
  • It works best in both cases, be it smaller or larger, easy or complex projects ending up in the efficient project deliveries.

Although it is a very efficient model, still there are some drawbacks that are listed below:

  • It is not so convenient when it comes to complex projects in which demands are not clearly stated.
  • As we know it follows a sequential approach, it is not possible to go back to any step which can result in problems sometimes.
  • No service is delivered until the last step is executed.
  • The testing phase can also only be done when the last step is executed and not consecutively.

The demands or needs of a project are taken into consideration in terms of data and output, profit analysis and plan of the project. Basically, bringing out all the requirements.

It is basically a procedure which involves refining and documenting the needful. It serves as an agreement between the developer and the consumer. It includes all kinds of requirements that a project has like design, software, hardware, and functions.

It is a model prepared for reviewing a part of the software to gain knowledge and a clear view of the upcoming requirements. This process is also repeated to produce a new update of the software for every period of the project.

The following are the levels in CMM

  • Initial
  • Managed
  • Defined
  • Quantitatively Managed
  • Optimizing

The various type of prototype models are

  • Patch-Up Prototype
  • Non-operational Prototype
  • First-of-a-Series Prototype
  • Selected Features Prototype

The Big Bang model obeys no particular process, and a very few amounts of time is spent on planning. Even the consumer is not certain about what exactly they want and the requirements are implemented. This is typically used for petty projects and not suitable for complex projects.

The Deployment phase is the product is delivered for consumer needs.

The CRS is a chief document made by the analyst and can possibly be missing information and duplicates in some cases.The SRS is the accurate and proper document that acts as the final one as it is used for reference by the test engineers.