Paper 2 CS · UNIT 01 · MOCK TEST

Mock 13 – Mixed Practice (Part 2)

Unit 1: Discrete Structures and Optimisation · 21 questions · about 25 minutes. Press End Mock any time to see your score and the correct answers.

All 14 topic-wise mocks in this unit

0 / 21 answered 00:00

Q1. RAD software process model stands for

ARapid Application Development BRelative application development CRapid application design DRecent application development

Q2. The model in which the requirements are implemented by its category is

AEvolutionary Development Model BWaterfall Model CPrototype Model DIterative Enhancement Model

Q3. Match List-I with List-II:
List-I (Software process model)
(a) Waterfall model
(b) Incremental development
(c) Prototyping
(d) RAD
List-II (Software system)
(i) An e-business that starts with only the basic functionality and then moves on to more advanced features
(ii) An inventory control system for a supermarket
(iii) A virtual reality system for simulating vehicle navigation in a highway
(iv) Automate the manual system for student record maintenance in a school
Choose the correct answer from the options given below:

A(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii) B(a)-(i), (b)-(iii), (c)-(iv), (d)-(ii) C(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) D(a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)

Q4. Which of the following statements is/are false?
P: The clean-room strategy to software engineering is based on the incremental software process model.
Q: The clean-room strategy to software engineering is one of the ways to overcome "unconscious" copying of copyrighted code.
Choose the correct answer from the code given below:

ANeither P nor Q BP only CBoth P and Q DQ only

Q5. Which of the following is not one of the principles of agile software development method?

AFollowing the plan BEmbrace change CCustomer involvement DIncremental delivery

Q6. Which of the following is not a key issue stressed by an agile philosophy of software engineering?

AThe importance of self-organizing teams as well as communication and collaboration between team members and customers BRecognition that change represents an opportunity CEmphasis on rapid delivery of software that satisfies the customer DHaving a separate testing phase after a build phase

Q7. Software Engineering is an engineering discipline that is concerned with:

Ahow computer systems work Btheories and methods that underlie computers and software systems Call aspects of software production Dall aspects of computer-based systems development, including hardware, software and process engineering

Q8. The major shortcoming of the waterfall model is

Athe difficulty in accommodating changes after the requirement analysis Bthe difficulty in accommodating changes after the feasibility analysis Cthe system testing Dthe maintenance of the system

Q9. The quick design of a software that is visible to end users leads to ______.

AIterative model BPrototype model CSpiral model DWaterfall model

Q10. The ______ model is preferred for software development when the requirements are not clear.

ARapid Application Development BRational Unified Process CEvolutionary Model DWaterfall Model

Q11. Which of the following is not included in the waterfall model?

ARequirement analysis BRisk analysis CDesign DCoding

Q12. Which of the following is not a software process model?

APrototyping BIterative CTime-boxing DGlass-boxing

Q13. Which process model is also called the classic life cycle model?

AWaterfall model BRAD model CPrototyping model DIncremental model

Q14. Three processes arrive as follows:

Process	Arrival Time	Burst Time
P0	0 ms	7 ms
P1	1 ms	3 ms
P2	2 ms	7 ms

The preemptive shortest-job-first (SJF) scheduling algorithm is used, with scheduling decisions made only at a process arrival or completion. What is the average waiting time for the three processes?

A3 ms B3.67 ms C4.47 ms D4 ms

Q15. Which of the following statements are true?
(A) Shortest remaining time first scheduling may cause starvation.
(B) Preemptive scheduling may cause starvation.
(C) Round robin is better than FCFS in terms of response time.

AA only BB, C only CA, B only DA, B, C

Q16. An OS follows round robin scheduling with a time quantum of 4 ms. Assuming that the CPU is free now and there are 20 processes waiting in the ready queue, what is the maximum amount of time that a process waits before getting into the CPU?

A80 ms B76 ms C84 ms DNone of the above

Q17. If an operating system does not allow a child process to exist when the parent process has been terminated, this phenomenon is called:

AThreading BCascading termination CZombie termination DProcess killing

Q18. Consider the following four processes with the arrival time and length of CPU burst given in milliseconds:

Process	Arrival Time	Burst Time
P1	0	8
P2	1	4
P3	2	9
P4	3	5

Using the preemptive shortest job first (SJF / SRTF) scheduling algorithm, what is the average waiting time (in ms) for these processes?

A6.5 B7.5 C6.75 D7.75

Q19. Which module gives control of the CPU to the process selected by the short-term scheduler?

ADispatcher BInterrupt CScheduler DThreading

Q20. Which of the following CPU scheduling algorithms may cause starvation of a process? (1) First-Come-First-Served (2) Round Robin (3) Priority scheduling (4) Shortest-Process-Next (5) Shortest-Remaining-Time-First

A1, 3 and 5 B3, 4 and 5 C2, 4 and 5 D2, 3 and 4

Q21. A scheduling algorithm assigns a process's priority proportional to how long it has been waiting; every process starts at priority zero (the lowest), and the scheduler re-evaluates all priorities and picks the next process to run every T time units. If no process performs I/O and all arrive at time zero, which classical scheduling discipline does this scheme effectively implement?

APriority scheduling BRound Robin scheduling CShortest Job First DFCFS

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