Are you in search of Software Engineering jobs? Want interview questions and answer to prepare well for the interview? We the Wisdomjobs provide you with all type of Software Engineering Interview Question and Answers that can be understood right from fresher to expertise candidates. software engineering is the application of engineering principles to the design, advance and execution of software. If you are good at Software Engineering and its advanced concepts there are various leading companies that offer jobs in roles like Software Engineer, Software Engineering Specialist, Trainee Software Engineer, Senior Embedded Software Engineer, Senior Software Engineer, Software Developer, and many other roles too. If you are willing to attend the interview you can go through our tips and tricks to clear the interview.
Question 1. What Is Computer Software?
Computer software is a complete package, which includes software program, its documentation and user guide on how to use the software.
Question 2. Can You Differentiate Computer Software And Computer Program?
A computer program is piece of programming code which performs a well defined task where as software includes programming code, its documentation and user guide.
Question 3. What Is Software Engineering?
Software engineering is an engineering branch associated with software system development.
Question 4. When You Know Programming, What Is The Need To Learn Software Engineering Concepts?
A person who knows how to build a wall may not be good at building an entire house. Likewise, a person who can write programs may not have knowledge of other concepts of Software Engineering. The software engineering concepts guide programmers on how to assess requirements of end user, design the algorithms before actual coding starts, create programs by coding, testing the code and its documentation.
Question 5. What Is Software Process Or Software Development Life Cycle (sdlc)?
Software Development Life Cycle, or software process is the systematic development of software by following every stage in the development process namely, Requirement Gathering, System Analysis, Design, Coding, Testing, Maintenance and Documentation in that order.
Question 6. What Are Sdlc Models Available?
There are several SDLC models available such as Waterfall Model, Iterative Model, Spiral model, V-model and Big-bang Model etc.
Question 7. What Are Various Phases Of Sdlc?
The generic phases of SDLC are: Requirement Gathering, System Analysis and Design, Coding, Testing and implementation. The phases depend upon the model we choose to develop software.
Question 8. Which Sdlc Model Is The Best?
SDLC Models are adopted as per requirements of development process. It may very software-to-software to ensuring which model is suitable.
We can select the best SDLC model if following answers are satisfied -
Question 9. What Is Software Project Management?
Software project management is process of managing all activities like time, cost and quality management involved in software development.
Question 10. Who Is Software Project Manager?
A software project manager is a person who undertakes the responsibility of carrying out the software project.
Question 11. What Does Software Project Manager Do?
Software project manager is engaged with software management activities. He is responsible for project planning, monitoring the progress, communication among stakeholders, managing risks and resources, smooth execution of development and delivering the project within time, cost and quality contraints.
Question 12. What Is Software Scope?
Software scope is a well-defined boundary, which encompasses all the activities that are done to develop and deliver the software product.
The software scope clearly defines all functionalities and artifacts to be delivered as a part of the software. The scope identifies what the product will do and what it will not do, what the end product will contain and what it will not contain.
Question 13. What Is Project Estimation?
It is a process to estimate various aspects of software product in order to calculate the cost of development in terms of efforts, time and resources. This estimation can be derived from past experience, by consulting experts or by using pre-defined formulas.
Question 14. How Can We Derive The Size Of Software Product?
Size of software product can be calculated using either of two methods:
Question 15. What Are Function Points?
Function points are the various features provided by the software product. It is considered as a unit of measurement for software size.
Question 16. What Are Software Project Estimation Techniques Available?
There are many estimation techniques available.The most widely used are:
Question 17. What Is Baseline?
Baseline is a measurement that defines completeness of a phase. After all activities associated with a particular phase are accomplished, the phase is complete and acts as a baseline for next phase.
Question 18. What Is Software Configuration Management?
Software Configuration management is a process of tracking and controlling the changes in software in terms of the requirements, design, functions and development of the product.
Question 19. What Is Change Control?
Change control is function of configuration management, which ensures that all changes made to software system are consistent and made as per organizational rules and regulations.
Question 20. How Can You Measure Project Execution?
We can measure project execution by means of Activity Monitoring, Status Reports and Milestone Checklists.
Question 21. Mention Some Project Management Tools?
There are various project management tools used as per the requirements of software project and organization policies. They include Gantt Chart, PERT Chart, Resource Histogram, Critical Path Analysis, Status Reports, Milestone Checklists etc.
Question 22. What Are Software Requirements?
Software requirements are functional description of proposed software system. Requirements are assumed to be the description of target system, its functionalities and features. Requirements convey the expectations of users from the system.
Question 23. What Is Feasibility Study?
It is a measure to assess how practical and beneficial the software project development will be for an organization. The software analyzer conducts a thorough study to understand economic, technical and operational feasibility of the project.
Question 24. How Can You Gather Requirements?
Requirements can be gathered from users via interviews, surveys, task analysis, brainstorming, domain analysis, prototyping, studying existing usable version of software, and by observation.
SRS or Software Requirement Specification is a document produced at the time of requirement gathering process. It can be also seen as a process of refining requirements and documenting them.
Question 26. What Are Functional Requirements?
Functional requirements are functional features and specifications expected by users from the proposed software product.
Question 27. What Are Non-functional Requirements?
Non-functional requirements are implicit and are related to security, performance, look and feel of user interface, interoperability, cost etc.
Question 28. What Is Software Measure?
Software Measures can be understood as a process of quantifying and symbolizing various attributes and aspects of software.
Question 29. What Is Software Metric?
Software Metrics provide measures for various aspects of software process and software product. They are divided into :
Question 30. What Is Modularization?
Modularization is a technique to divide a software system into multiple discreet modules, which are expected to carry out task(s) independently.
Question 31. What Is Concurrency And How It Is Achieved In Software?
Concurrency is the tendency of events or actions to happen simultaneously. In software, when two or more processes execute simultaneously, they are called concurrent processes.
Example: While you initiate print command and printing starts, you can open a new application.
Concurrency, is implemented by splitting the software into multiple independent units of execution namely processes and threads, and executing them in parallel.
Question 32. What Is Cohesion?
Cohesion is a measure that defines the degree of intra-dependability among the elements of the module.
Question 33. What Is Coupling?
Coupling is a measure that defines the level of inter-dependability among modules of a program.
Question 34. Mentions Some Software Analysis & Design Tools?
These can be: DFDs (Data Flow Diagrams), Structured Charts, Structured English, Data Dictionary, HIPO (Hierarchical Input Process Output) diagrams, ER (Entity Relationship) Diagrams and Decision tables.
Question 35. What Is Level-0 Dfd?
Highest abstraction level DFD is known as Level 0 DFD also called a context level DFD, which depicts the entire information system as one diagram concealing all the underlying details.
Question 36. What Is The Difference Between Structured English And Pseudo Code?
Structured English is native English language used to write the structure of a program module by using programming language keywords, whereas, Pseudo Code is more close to programming language and uses native English language words or sentences to write parts of code.
Question 37. What Is Data Dictionary?
Data dictionary is referred to as meta-data. Meaning, it is a repository of data about data. Data dictionary is used to organize the names and their references used in system such as objects and files along with their naming conventions.
Question 38. What Is Structured Design?
Structured design is a conceptualization of problem into several well-organized elements of solution. It is concern with the solution design and based on ‘divide and conquer’ strategy.
Question 39. What Is The Difference Between Function Oriented And Object Oriented Design?
Function-oriented design is comprised of many smaller sub-systems known as functions. Each function is capable of performing significant task in the system. Object oriented design works around the real world objects (entities), their classes (categories) and methods operating on objects (functions).
Question 40. Briefly Define Top-down And Bottom-up Design Model.
Top-down model starts with generalized view of system and decomposes it to more specific ones, whereas bottom-up model starts with most specific and basic components first and keeps composing the components to get higher level of abstraction.
Question 41. What Is The Basis Of Halstead’s Complexity Measure?
Halstead’s complexity measure depends up on the actual implementation of the program and it considers tokens used in the program as basis of measure.
Question 42. Mention The Formula To Calculate Cyclomatic Complexity Of A Program?
Cyclomatic complexity uses graph theory’s formula: V(G) = e – n + 2.
Question 43. What Is Functional Programming?
Functional programming is style of programming language, which uses the concepts of mathematical function. It provides means of computation as mathematical functions, which produces results irrespective of program state.
Question 44. Differentiate Validation And Verification?
Validation checks if the product is made as per user requirements whereas verification checks if proper steps are followed to develop the product.
Validation confirms the right product and verification confirms if the product is built in a right way.
Question 45. Quality Assurance Vs. Quality Control?
Quality Assurance monitors to check if proper process is followed while software developing the software.
Quality Control deals with maintaining the quality of software product.
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