Software Engineering MCQ Quiz - Objective Question with Answer for Software Engineering - Download Free PDF

The correct answer is Cyclomatic Complexity

Key Points

• Cyclomatic complexity is not a size metric; it is a complexity metric used to indicate the complexity of a program by measuring the number of linearly independent paths through the program's source code.
• It is often used to help gauge the understandability and maintainability of a program.
• The other options listed (LOC, Function count, Program length) are examples of size metrics, which are used to measure the size of a software program or its components.

The correct answer is Facilitated Application Specification Technique

Key Points

• FAST stands for "Facilitated Application Specification Technique." It is a methodology used in the software development process that emphasizes collaboration and communication among stakeholders to define requirements and specifications effectively.
• This approach involves facilitated sessions where participants work together to capture precise requirements, with the goal of improving the quality and efficiency of software development by ensuring a clear understanding of needs from the outset.

The correct answer is Perfective maintenance

Key Points

• Perfective maintenance, refers to the modifications made to an information system to include features that are desirable but not strictly necessary.
• This type of maintenance focuses on enhancing the system's functionality and performance, making it more efficient, user-friendly, or capable of handling additional tasks.
• Unlike corrective or adaptive maintenance, which aim to fix known issues or adjust to new environments respectively, perfective maintenance is about improvement and optimization that goes beyond the basic requirements.
• It's about adding value to the system based on user feedback or anticipated needs, ensuring that the system remains relevant and continues to meet the evolving demands of its users.

The correct answer is Big-Bang testing

Key Points

• Big-Bang testing is an approach where the various components or modules of a system are integrated all at once, and then the entire system is tested as a whole.
• This approach does not involve incremental testing or integration of modules but waits until all components are ready for integration.
• While this method can be efficient in terms of planning, it might lead to difficulties in isolating and fixing defects since everything is integrated and tested simultaneously.

The correct answer is Structured requirements definition

Key Points

• SRD can stand for either Structured Requirements Definition or Software Requirements Definition, with both options being correct and receiving marks.
• Here are some important points: Structured Requirements Definition is a data-driven, output-oriented methodology that follows a bottom-up approach.

The correct answer is Application software

Important Points

• MS Office, Photoshop, and Animagic are examples of Application software
• MS Office is a software bundle provided by Microsoft.
• It includes software like MS Word, MS Excel, MS Powerpoint, MS Outlook, MS Access, MS One Note, and others.

Additional Information

• Photoshop is a powerful photo editing tool by Adobe.
• An Operating System (OS) is an interface between a computer user and computer hardware.
• An operating system is software that performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.

Concept:

Software development life cycle is the logical process of developing a system that satisfies customer needs and can be developed within the predefined schedule and cost.

Explanation:

Various phases of the software development life cycle are : 

1) Analysis: First thing is to gather and analyze the requirements of the system. The information domain, function, behavioral requirements of the system are understood. These requirements are then well documented.

2) Design: After collecting and analyzing all necessary requirements, design architecture is prepared.

3) Coding: After the design, one can develop the code for the system using some programming language. During this, design is translated into a machine-readable form.

4) Testing: It is done to uncover the errors and fix the bugs.

5) Maintenance: Sometimes errors may get produced after system installation and sometimes the requirements get changed. At that time, the maintenance of the system is needed.

Concept:

System development life cycle (SDLC) is a process followed for a software project, within a software organization. It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software.

The life cycle defines a methodology for improving the quality of software and the overall development process.

Phases of SDLC

Therefore, all options are correct

Concept:

Mutlimedia means combination of text, audio, video, graphics, and animation. Mutlimedia project are the multimedia materials which are presented on computer screen.

Explanation:

Phases of a multimedia project are : planning, designing , testing and delivering. 

Some points about multimedia project : 

• Interactive mutlimedia gives the navigational controls to the user. It control what elements are to be delivered.
• It requires creative skills, tools and organization talent to create mutlimedia projects.
• There are two categories in multimedia : linear and non - linear.
• Linear multimedia is without any navigational control example cinema.
• Non - linear provides user interactivity to control progress. Example : computer game.
• Mutlimedia system must be integrated, handled digitally and usually interactive.
• Mutlimedia can be delivered using optical disk, web or distributed network.

Concept:

Cloud computing provides a flexible environment to use resources at low cost. Cloud computing is a web based, distributed computing using which information, resources and software are distributed among different users. All the resources are on web, so this is the reason that there come various ways to provide services.

Explanation:

Cloud computing is internet-based computing where customers do not own the physical infrastructure. All services are on internet. Various services in cloud computing model are as follows:

SaaS – It stands for software as a service. In this, application is hosted as a service to customers who access it via internet. It provides packaged business process offerings that live in cloud. In this, cloud contains stack such as operating system, application software etc.

IaaS – It stands for infrastructure as a service. It is responsible for providing virtualized computing resources, network resources with IaaS users assemble their own virtual cluster on which they are responsible for installing, maintaining, and executing their own software stack.

PaaS – It stands for platform as a service. It supplies all the resources required to build applications and services completely by using internet without having to download or install software. It includes application design, development and hosting. 

Regression testing is a type of maintenance testing. Maintenance testing encompasses all testing activities that are performed to identify and fix defects in an existing software system, and regression testing is a specific aspect of this process.

Key Points Maintenance testing is generally divided into two categories:

Corrective Maintenance Testing: This involves testing to identify and fix defects or issues in the software after it has been deployed.

Adaptive Maintenance Testing: This type of maintenance testing is carried out to adapt the software to changes in the environment, such as changes in hardware, software, or regulatory requirements.

Regression testing falls under both corrective and adaptive maintenance testing. When new code is added or existing code is modified, regression testing is performed to ensure that the changes do not negatively impact the existing functionality. This helps in maintaining the reliability and integrity of the software over time.

Concept :

The software comprises the entire set of programs, procedures, and routines associated with the operation of a computer system. The term was coined to differentiate these instructions from hardware—i.e., the physical components of a computer system.

Programs + documentation + operating procedures is the correct answer.

Explanation:

• Mean time between failures is the average time between failures and not the average time something works then fails.
  • Mean time between failure (MTBF) = \(\frac{{total\;uptime}}{{number\;of\;breakdowns}}\)
• Mean time to repair is the average time taken to repair something.
  • Mean time to repair (MTTR) = \(\frac{{total\;downtime}}{{number\;of\;breakdowns}}\)

Availability = \(\frac{{total\;uptime}}{{\left( {total\;uptime + total\;downtime} \right)}}\)

       = \(\frac{{MTBF}}{{\left( {MTBF + MTTR} \right)}} \times 100\;\;\;\;\;\;\;\;\;\;\backslash \backslash percentage\;\)

                       = \(\frac{{20*24}}{{\left( {20*24 + 20} \right)}} \times 100\)

       = 0.96 × 100 = 96%

Important Point:

The correct answer is option 3

Formula:

The total cost of the project = Total development cost + Total maintenance cost

Calculation:

Let p1 be the LOC using L1 and p2 be the LOC using L2.

Total cost of the project using L1 = (p1/1000) x 70,000 + (10 x 1,00,000) = 70p1 + 10,00,000

Total cost of the project using L2 = (p2/1000) x 90,000 + (10 x 40,000) = 90p2 + 4,00,000

Given that p2 = 3xp1

=>70p1 + 10,00,000 = 90p2 + 4,00,000

=>70p1 + 10,00,000 = 270p1 + 4,00,000

=> 200p1 = 6,00,000

=> p1 = 3000

The correct answer: Acceptance Testing

Alpha and Beta testing are forms of:

Acceptance Testing

Important Points

Alpha Testing is usually done by internal staff before the product is released to external testers. It is a type of acceptance testing that's done in a lab environment and not by the end users. It helps identify all possible issues and problems in the system before it goes for Beta testing. 

Beta Testing is performed by actual users or potential customers in their own environment. It is the second phase of testing in which a sampling of the intended audience tries the product out before it is officially released to the general public. This is the final test before shipping the product. Problems that were not discovered during Alpha testing may be identified here.

These types of tests are done to make sure that the system is working as expected and will be accepted by the end users. They are types of User Acceptance Testing (UAT) and are very important in software development processes.