This set covers the management side of software engineering. It includes worked numerical questions on basic COCOMO, function points, productivity, risk exposure, availability, PERT and critical path, along with concepts such as maintenance categories, Brooks's law, configuration baselines, CMMI maturity levels, ISO 9001 and reliability measures. It suits GATE and UGC NET aspirants, university semester exams and interviews for team lead or project roles.
How to practise: read each question and tap the option you think is correct. You will see right away whether you got it, along with a short explanation, and your score is tracked at the bottom of the screen. This set has 18 questions.
Topics covered in this set
- Basic COCOMO effort and schedule
- Function point analysis and LOC productivity
- Scheduling: critical path, PERT, Gantt charts
- Risk exposure and RMMM
- Maintenance types and configuration management
- CMMI, ISO 9001 and reliability metrics
Software Engineering MCQs with answers and explanations
Q1. Using basic COCOMO for an organic project of 32 KLOC (E = 2.4 x KLOC^1.05), the estimated effort is approximately
a) 77 person-months
b) 91 person-months
c) 146 person-months
d) 38 person-months
Q2. For an organic project with estimated effort of 91.3 person-months, basic COCOMO gives development time D = 2.5 x E^0.38. The value of D is approximately
a) 13.9 months
b) 6.6 months
c) 22.8 months
d) 36.5 months
Q3. In basic COCOMO, a flight control system with tight hardware and real-time constraints belongs to which mode?
a) Organic
b) Semi-detached
c) Detached
d) Embedded
Q4. A system has 10 external inputs, 8 external outputs, 5 external inquiries, 4 internal logical files and 2 external interface files, all of average complexity (weights 4, 5, 4, 10, 7). The sum of the 14 general system characteristic ratings is 42. What is the adjusted function point count?
a) 154.00
b) 107.80
c) 164.78
d) 196.00
Q5. A team delivers 20 KLOC with a total effort of 40 person-months. What is its productivity?
a) 500 LOC per person-month
b) 2000 LOC per person-month
c) 800 LOC per person-month
d) 50 LOC per person-month
Q6. A risk has a 30 percent chance of occurring and would cost Rs 50,000 if it occurs. What is its risk exposure?
a) Rs 35,000
b) Rs 50,000
c) Rs 1,66,667
d) Rs 15,000
Q7. In risk management, RMMM stands for
a) Risk Measurement, Modelling and Maintenance
b) Risk Mitigation, Monitoring and Management
c) Requirement Mapping, Modelling and Management
d) Release Monitoring, Metrics and Maintenance
Q8. Modifying an application so that it runs on a new version of the operating system, without adding features, is which type of maintenance?
a) Corrective
b) Perfective
c) Adaptive
d) Preventive
Q9. According to classic studies such as Lientz and Swanson, which type of maintenance typically consumes the largest share of maintenance effort?
a) Corrective
b) Adaptive
c) Preventive
d) Perfective
Q10. In CMMI, the maturity level at which processes are controlled using statistical and other quantitative techniques is
a) Level 2 - Managed
b) Level 4 - Quantitatively Managed
c) Level 3 - Defined
d) Level 5 - Optimizing
Q11. Which statement about ISO 9001 is correct?
a) It is a maturity model with five staged levels
b) It applies only to software development companies
c) It specifies requirements for a quality management system and applies to organisations in any industry
d) It defines a programming standard for safety-critical code
Q12. A server has a mean time to failure of 480 hours and a mean time to repair of 20 hours. What is its availability?
a) 96 percent
b) 95.8 percent
c) 4 percent
d) 98 percent
Q13. For a protection system that is called only occasionally, such as an emergency shutdown, which reliability metric is most appropriate?
a) Rate of occurrence of failures (ROCOF)
b) Lines of code per defect
c) Probability of failure on demand (POFOD)
d) Mean time to repair alone
Q14. Activities and durations (in days): A=3 (start), B=5 after A, C=4 after A, D=6 after B, E=2 after C, F=3 after both D and E. What is the minimum project duration?
a) 12 days
b) 17 days
c) 14 days
d) 23 days
Q15. Using PERT, an activity has optimistic time 4 days, most likely time 7 days and pessimistic time 16 days. Its expected time is
a) 8 days
b) 7 days
c) 9 days
d) 9.5 days
Q16. "Adding manpower to a late software project makes it later" is known as
a) Lehman's law
b) Conway's law
c) Parkinson's law
d) Brooks's law
Q17. Which chart represents project tasks as horizontal bars plotted against a calendar timeline?
a) PERT network
b) Gantt chart
c) Pareto chart
d) Fishbone diagram
Q18. In software configuration management, a baseline is
a) Any file saved by a developer on the local machine
b) The first draft of the SRS before review
c) A formally reviewed and agreed work product that can be changed only through formal change control
d) The minimum hardware configuration for deployment
Quick revision notes
- Basic COCOMO organic: E = 2.4 (KLOC)^1.05 PM, D = 2.5 E^0.38 months.
- Semi-detached: a = 3.0, b = 1.12; embedded: a = 3.6, b = 1.20 (c = 2.5; d = 0.35 and 0.32).
- FP = UFP x (0.65 + 0.01 x sum of 14 GSC ratings).
- Risk exposure = probability of risk x loss if it occurs.
- Availability = MTTF / (MTTF + MTTR); MTBF = MTTF + MTTR.
- PERT expected time = (o + 4m + p) / 6.
- CMMI levels: 1 Initial, 2 Managed, 3 Defined, 4 Quantitatively Managed, 5 Optimizing.
- Maintenance: corrective (bugs), adaptive (environment), perfective (enhancements), preventive (future problems).
Frequently asked questions
What are the three modes of basic COCOMO?
Organic projects are small, with experienced teams and familiar problems. Semi-detached projects are of intermediate size and experience. Embedded projects have tight hardware, software or regulatory constraints and need the most effort for a given size.
Why are function points preferred over lines of code for early estimation?
Function points are based on the functionality visible to the user, such as inputs, outputs and files, so they can be counted from the requirements before any code exists and are independent of the programming language.
What is the difference between CMMI and ISO 9001?
CMMI is a staged maturity model for improving development processes, rating organisations from level 1 to 5. ISO 9001 is a general quality management system standard for any industry, and an organisation is either certified against it or not.
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