Exam questions- examples

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1 Exam questions- examples The following are examples of exam questions. At the exam there will be similar questions with similar level of difficulty. In the question pool there will be questions related to all lectures. It might happen that some lectures are not represented in a concrete exam. We recommend that you try to solve the problems on your own, reading the referenced lecture. We show the correct answers in the second part of the document; they are usually marked in Bold, or we give an explanation to the solution. We wish you a successful exam! Answers, solutions: Intro, software (lect 1., 9-10 ) The lecturers 1. Choose the correct answers among the following: a. Software is equal to the implemented code. b. The software product contains user data. c. Software can appear as concepts, processes. d. An example of software is a computer program. e. Software contains the procedures and rules needed for its operation. 2. Software quality is hard to define because... (choose the right answers): o Software must conform the changing hardware. o Quality is not constant, even in the case of the same product. o Software has no physical existence, measurable by usual means. o Software quality depends on the viewpoint of the person assessing it. o Software quality does not depend on the type of the software. 3. Put the following statements in the correct order: 1 Design the solution 2 Understand the problem 3 Use former experience, existing solutions, existing design and programming elements 4 Implement the design (coding) 5 Retest (until no more errors) 1

2 6 Read problem statement 7 Test the solution 8 Deliver solution 9 Correct errors Answer: 6, 2, 1, 3, 4, 7, 9, 5, 8 Life cycle models (lecture 2. ): 4. Which is true, which is false? a) Evolutionary development ( rapid prototyping ) has as one added advantage that the user feedback appears relatively early in the development process. (T) b) In the case of Test Driven development, test cases are developed before coding, for each function. (T) c) Generally, within the software development lifecycle, first the static testing techniques, next the structural testing, and last the functional testing techniques have an important role. (T) d) In the V-model, system validation is in the end of the development lifecycle. (T) SPI, agility (Lectures 2, 3 ) 5. Which is true, which is false? At a company working in the Agile way the CMMI model cannot be applied. (F) At a company working in the Agile way the estimations must not be documented. (F) RUP is an agile methodology. (F) At a company working in the Agile way more build can be released daily. (T) Note: CMMI = Capability Maturity Model Integration 6. Which is true, which is false? a) Function point counting is mandatory for each company being at CMMI ML3. (F) b) A company must choose: apply either CMMI or TMMi. The 2 cannot be applied together. (F) c) In CMMI, measurement must be started at ML2. (T) d) In CMMI all Engineering Processes are on ML 3. (T) 2

3 Note: TMMi = Test Maturity Model Integration 7. Within CMMI model, which is the lowest maturity level having the following characteristics? A, Project management processes are understood, documented and used. (2) B, The success of the company depends on the heroics of its employees. (1) C, The company has standard processes; everyone at the company executes the processes in the same way. (3) D, The cause of the defects are understood at the company; the company is able to do well targeted process improvement. (5) 8. To which category do the following processes belong? (possible: Engineering, Support, Project Management): a. Time estimation (PM) b. Resource levelling (PM) c. Change management (SUP) d. Risk management (PM, SUP) e. Integration testing (ENG) f. Coding (ENG) 9. To which CMMI ML do the following processes belong? - PPL-2 - CM-2 - PMC-2 - RSKM-3 - PI-3 - VER-3 - MA-2 - Stb 10. From the following statements choose 4 that are characteristic to the agile way of working. A, Testers work in a separate group, completely isolated from the developers, so that they can perform their work objectively. B, TDD (Test Driven Development) is one method of testing. C, All requirements are specified in detail in the beginning of the project. D, The organization running projects uses a Lean phylosophy. E, The role pf project manager is taken by the Scrum master. F, Continuous integration is done; automated test tools are used for this purpose. 3

4 Requirements (Lecture 4. ) 11. From the list below choose requirements that can be non-functional requirements for a web-based application. a, User family name and given name must be inserted in the login screen. b, Only users with SystemAdmin right can change passwords for other users. c, The system must handle maximum users at one time. d, Response time must be always below 2 sec. e, The system must run on PC, tablet and smartphone using Android. f, The system must run on all days of the week, from 0 to 24 hour. 12. Which is true, which is false? A, Requirements must be identifiable in the code, as well. One way to achieve this is to insert the corresponding requirements as comments into the code. (T) B, In case of Agile development, code quality can be increased by a refactoring. (T) C, An important part of agile software design is the identification of User Stories / story points. (T) D, Software design (as engineering activity ) and project planning (as a managerial task) are clearly separated in an Agile environment. (F) Requirements,design (lecture 4, 5) 13. Case study The technical director of your organisation gives you the task to manage and contol the planing of a web -based application, providing cultural news for elder people. Data shall be taken from an existing, similar mobile application. The director gives you the instruction to take into account the impaired eyes and the slow rection time of these people, and that their hands sometimes cannot execute the fine movements in a precise way. Which basic principles would you consider during planning of the GUI of the application? All correct answers shall be marked! 1. Demeter's law in the architectural design. 2. The principle of law of cohesion while defining the objects. 3. The diversity of the users. 4

5 4. The easy learnability. 5. The short response time of the system. 6. To minimise the data lost. 14. Case study The technical director of your organisation gives you the task to manage and control the planning of a web -based application, providing cultural news for elder people. Data shall be taken from an existing, similar mobile application. The director gives you the instruction to take into account the impaired eyes and the slow reaction time of these people, and that their hands sometimes cannot execute the fine movements in a precise way. Mark the ONE correct statement, that has both the affirmation and the conclusion are correct! 1. User diversity must be taken into account during GUI design, because the system must be usable for blind and seeng-impaired users as well. 2. User diversity must be taken into account during GUI design, because there will be colorblind people using the system. 3. The principle of rapid data recovery must be taken into account during the architectural design 15. Which is true, which is false? A, During system design one always must consider the existing architectural styles and models that could be used. (T) B, In GUI design, used diversity must be taken into account. (T) C, Documents developed during system design must not be put under configuration management. (F) D, A good software designer always analyses more alternatives during system design. (T) Testing (Lectures ) 16. Which of the following described the expected results of a test? a. Test case b. Test procedure c. Schedule of test execution d. Testing conditions 5

6 17. Which of the following belongs to the Execution phase of the fundamental testing process? A, Developing test cases, developing test procedures B, Comparing actual and expected results C, Writing test summary reports D, Analysing experience, to be used in the next projects 18. An examination system defines the grades obtained based on the exam result points in the following way: Failed: 0-39 (including the boundaries) Passed: Medium: Con Brio: From the following cases choose the one that has each value in a different equivalence partition. a. 25,40, 60,75 b. 0,45,79,87 c. 35, 40, 59,69 d. 25,39,60, Choose the one correct answer! Which general testing principles are characterized by the description below? 1. Early testing 2. Defect clustering 3. Pesticide paradox 4. Absence-of-errors fallacy A. Testing should start at the beginning of the project B. Conformance to requirements and fitness for use C. A small number of modules contain the majority of defects D. Test cases must be regularly reviewed and revised a) 1A, 2B, 3C and 4D b) 1A, 2C, 3D and 4B c) 1B, 2C, 3A and 4D d) 1A, 2D, 3B and 4C 6

7 20. When should regression testing normally be performed? i.every week ii.after the software has changed iii.when the environment has changed iv.on the same day, each year v.after the software is released a) ii, iii true i, iv, v false b) i, iii, v true ii, iv false c) i, iv true ii, iii, v false d) ii, iv, v true i, iii false 21. Consider the following list of testing activities: I Analysis and technical test planning II. Test closing activities III. Evaluation of exit conditions and development of report IV. Planning and monitoring V. Implementation and execution Which is the right order? a, I, II, III, Iv, V b, Iv, I, V, III, II c, Iv, I, V, II, III d, I, IV, V, III, II 22. Who is (are) the primary responsible person for the document to be reviewed? A Author B Reader C Moderator D Reviewers 23. Which testing techniques are based on requirements specification? A DD-path testing B Equivalence class partitioning C Black-box testing D Boundary value analysis 7

8 24. Mark with F (false) or T (true) the following statements! A Testing the software can prove the presence of bugs, and cannot prove the absence of errors. (T) B The combinations of input and output data will show all errors in the software. (F) C Testing begins after finishing the key development activities. (F) D Testing safety-critical systems is similar to testing web applications. (F) 25. Mark with F (false) or T (true) the following statements! Tests based on equivalence classes: A Ensures that out testing is complete. (T) B Assumes that the variables are independent. (F) C When using equivalence classes, we know the internal structure of the program.(f) D Helps to avoid testing with redundant data. (T) 26. Which statement gives the best specification for the goal of the actions of a testing team? a, Deciding during the system test whether enough component testing has been performed. b. Identify as many failures as possible, and identify the error (fault) causing them c. To prove that all errors and bugs were found. d. To prove that the bugs remaining in the software will not cause any system crash. Test types: 27. Which is true, which is false? a) the progression tests are focusing on functional testing the last changed or modified parts of a program. (T) b) In alpha testing, the software will be used (and so tested) by a small group of external users. (F) c) The system test is based on the functional specification, therefore the non-functional requirements are not tested within system test. (F) d) The inspection is the most powerful tool among the reviews, but it is very expensive to carry out and introduce in an organization. (T) 28. Which types of tests are explicitly mentioned in V-model description? 8

9 A, Unit test B, Beta test C, Integration test D, Black-box test E, Dynamic test F, System test G, Verification and validation 29. Exercise Take the following decision table: Conditions Rule 1. Rule 2. Rule 3. Rule 4 Older than 23 F T T T years? Safe driving (no - F T T accidents) in the past? Business trip? - - F T Activities Car renttal F F T T Extra charge F F F T Specify the acceptable (good) test result based on the decision table above for the following test cases: TC-1: A 26 years old business traveller, who has had accidents and motoring offences in the past. TE-2: A 62 years old tourist without any accidents in the past. Mark the correct answer with O : A, TC-1: refusal to rent the car. TC-2: rent the car with extra price. B, TC-1: rent the car with extra price. TC-2: rent the car without extra price. C, TC-1: refusal to rent the car TC-2: rent the car without extra price. D, TC-1: rent the car with extra price. TC-2: refusal to rent the car. Project management processes, Scrum (lecture 8.) 9

10 30. Exercise The software development team has to produce a module of 40 function points in 10 days. The project leader estimates the cost to Ft. The work is checked after 5 days, when the status is the following: there were 26 function points done Ft used. Using the conventional Earned value calculation method, calculate the following items, where not given please put the used formula. BCWS (Budget Cost of Work Scheduled) = ACWP (Actual Cost of Work Performed) = BCWP (Budget Cost of Work Performed) = CV (Cost Variance)= SV (Schedule Variance)= CPI (Cost Performance Index)= SPI (Schedule Performance Index)= Solution: BCWS = Ft (initial cost x time used (%)) ACWP = Ft (cost used this far) BCWP = Ft (Budget cost of work peformed: 26 FP s is 65% of the total of 40 FP ; 65% of the entire budget is: Ft) CV = BCWP-ACWP = Ft Ft = Ft SV = BCWP-BCWS = Ft Ft = Ft CPI = BCWP/ACWP = Ft / Ft = 1,19 SPI =BCWP/BCWS = Ft / Ft = 1, Mark with F (false) or T (true) the following statements! 1, In the project plan the critical path is the sequence of tasks having Total Float=0 (T) 2, In the project plan the duration of the tasks in the critical path can be changed without changing the deadline of the project. (F) 3, If using Scrum, there is no way to find the critical path. (F) 4, The critical path is composed of the most expensive processes of the project (F) 32. Mark with F (false) or T (true) the following statements! 1, The only agile project management tool is the Scrum. (F) 2, In Scrum, according their roles, top management members are called the pigs. (T) 3, The Scrum is explicit against using coding normatives /standards in software development. (F) 4, An agile project should not spend time to analyze and understand why a project was successful or not. (F) 10

11 33. From the following list choose the 4 tools / techniques that are used typically as a means of agile project planning and project monitoring! A, RUP projekt management processes B, Burndown Chart C, Team velocity D, COSMIC E, GQM paradigm F, Continuous Integration G, PSP H, Photos of the Kanban Board I, Definition of Done Supporting processes (lecture 9-10) 34. Put in pairs the objects listed in points 1 to 4 with the measurements items given in A to D. Possible objects: 1, Software code 2, Project management process 3, Software engineering (development) process 4, Resource Possible metrics to use: A, The time spent for planing the project B, The number of severe errors found in the testing process. C, Number of Function points D, Experiance from earlier years of using the applied programming language. Solution 1-C, 2-A, 3-B, 4-D 11

12 35. Mark with F (false) or T (true) the following statements! a, The key point of the Risk Management is to avoid the impact of unforseen events and so to decrease their impact to zero. (F) B, Quality Assurance in software engineering means a good testing. (F) C, Configuration Items must be identified not only in the software code but in all artifacts produced in all processes of the software development. (T) D, ISO 9001 standard-based audit checks the quality of the code. (F) For IMSC points 36. Exercise In a post office you have to pay 295 Ft for packages up to 2 kg. This fee is 395 Ft for packages up to 5 kg. Above 5 kg is 500 Ft. Define test cases using Equalence Partition classes! Which questions have to be clarified with the consumer? Do you have any proposals to make the system more user fiendly? Solution: Equivalence classes: minimum weight 1, 9999 kg 2 kg kg 5 kg- maximum weight Test cases (weakest approach: weak, normal equivalence class, 1 test case from each class) : Test case 1: Input: 1.5 kb, output: to pay: 295 Ft Test case 2: Input: 3 kg, output: to pay: 295 Ft Test case 3: Input: 5.2 kg, output: to pay: 500 Ft To clarify (at a minimum): Which is the lowest and highest possible weight limit for a parcel? What is the precision of the scale? Why were the above amounts of payment chosen (they are too low...)? 37. Exercise 12

13 In a software company all workers do their best, but the management is still not satisfied with the productivity, saying that there is no information about when projects are finished, and therefore the income cannot be forseen, not even for the next month. The organisation wants to participate in a tender, on which it is an added values to have a certificate about the quality of the work in the company. It was already discussed to apply some prosses developement model to improve the productivity. You have to give advice for the company, and suggest a process improvement approach. In max 4 sentences make a proposal about which model or method will be best suitable, and give at least 3 reasons why it really is (in your oppinion). Possible good solutions: CMMI model, staged approach, ML2 Because: this approach contains Project planning and Project monioring and Control processes, that deal with estimations, project pallning and monitoring Because: the company has no experience in using processes ( all workers do their best is a typical, ML1 behaviour), and CMMI staged represnetation precisely tells which processes to focus on in such a situation. Because: CMMI ML2 can be certified. If done, the activity of the entire company is certified. Etc. Or: CMMI, continuous approach, PPL and PMC processes, these need to be executed minimum at CL2 Because: the approach contains estimating Because: investment is minimized Because: the CL of these processes can be certified Etc. Or: Process development according to SPICE model; processes of projekt planning, monitoring and estimations can be taken from ISO Because: ethe approach contains estimating Because: investment is minimized because: the CL of these processes can be certified according to SPICE (ISO 15504) 13

Exam questions- examples

Exam questions- examples The following are examples of exam questions. At the exam there will be similar questions with similar level of difficulty. In the question pool there will be questions related