Unit 5: Performance Testing Tools - Practice Quiz

1 Which feature is commonly associated with an open-source performance testing tool?

2 What is Apache JMeter primarily used for?

3 Which is an advantage of using JMeter?

4 Which prerequisite is commonly required before installing JMeter?

5 Which JMeter element is used to define the users or threads in a test?

6 What is the purpose of a configuration element in JMeter?

7 In the JMeter GUI, where are test elements displayed in a hierarchical structure?

8 What is the main purpose of a JMeter Test Plan?

9 Which JMeter component is mainly used as a temporary working area?

10 How can a user commonly add an element in the JMeter test tree?

11 What is a .jmx file in JMeter?

12 What is configured in a JMeter sampler?

13 Which menu option is commonly used to save a JMeter test plan?

14 Which JMeter element can display results while a test is running?

15 What should be defined first when creating a basic JMeter performance test plan?

16 What is the purpose of a timer in JMeter?

17 What does an assertion do in JMeter?

18 What is the purpose of a controller in JMeter?

19 When are JMeter preprocessors generally executed?

20 What is the main purpose of distributed testing in JMeter?

21 A team needs to customize protocol handling, inspect the tool's source code, and avoid per-user licensing fees. Which tool-selection criterion most strongly favors an open-source performance testing tool?

22 A tester wants to measure an application's behavior when 200 users send HTTP requests concurrently. Which JMeter component should represent the virtual-user population?

23 A test must generate a heavy load from a server without spending resources rendering result graphs during execution. Which JMeter advantage best supports this requirement?

24 After extracting JMeter, running the startup script immediately reports that Java cannot be found. What should the tester verify first?

25 A test plan contains a Thread Group and an HTTP Request, but the tester also needs to inspect response times and error percentages after a small debugging run. Which element should be added?

26 Every HTTP request in a Thread Group uses the same server name and port, but each request has a different path. Which configuration element reduces duplication most effectively?

27 A tester opens a large JMX file in the JMeter GUI and wants to change the settings of one HTTP Request. What is the correct interaction?

28 In a JMeter version that provides a WorkBench, a tester places a temporary HTTP(S) Test Script Recorder there but expects it to be part of the saved load scenario. What should the tester understand?

29 A tester needs an assertion to validate only one login request rather than every request in the Thread Group. Where should the assertion be added?

30 Which command correctly runs checkout.jmx in non-GUI mode and writes raw sample results to results.jtl?

31 An HTTP Request sampler has an empty server field and is within the scope of HTTP Request Defaults containing api.example.com. Another defaults element outside its scope contains test.example.com. Which server will the sampler use?

32 A tester saves a JMeter test plan that references users.csv with a relative path. What practice makes the test plan more portable to another load generator?

33 A non-GUI test has produced results.jtl. Which command generates an HTML dashboard from that existing results file in an empty report directory?

34 Production traffic is expected to increase gradually from 0 to 300 concurrent users over 10 minutes. Which initial Thread Group setup best models this workload?

35 A Thread Group has 50 users, and each user should pause for exactly 2 seconds before sending a particular request. Which element should be added as a child of that request?

36 An API can return HTTP 200 with an error object in the response body. The test should fail when the expected field "status":"success" is absent. Which JMeter element is most appropriate?

37 A purchase sequence containing three requests must execute only when the JMeter variable eligible equals true. Which controller should contain the sequence?

38 A login response returns a dynamic token that must be included in the next request. Which placement and processor type should be used to extract it?

39 A distributed test uses one controller and three remote JMeter engines. The test plan defines 100 threads, and the complete plan runs independently on every engine. Approximately how many total threads are generated?

40 Remote JMeter engines start successfully, but each fails because a CSV data file referenced by the JMX plan is missing. What should the tester do before rerunning the distributed test?

41 A regulated enterprise must performance-test a proprietary desktop protocol, obtain vendor-backed support with contractual response times, and produce audit-ready reports. The team can extend Java-based tools but has only six weeks. Which tool-selection decision is most defensible?

42 A JMeter test sends 1,000 HTTP requests successfully, but browser users remain slow because client-side JavaScript performs expensive rendering after each response. Why does the JMeter result not capture the complete user experience?

43 Which JMeter capability most directly supports reuse of one performance test across development, staging, and production-like environments without duplicating the test plan?

44 JMeter starts on one machine but fails on another with an unsupported class-version error immediately after launch. Both machines use the same JMeter archive. What should be checked first?

45 A Thread Group contains an HTTP Request sampler with a Response Assertion and a View Results Tree listener as children. Which statement best describes how these elements participate in execution?

46 A CSV Data Set Config uses Sharing mode: Current thread and contains 100 unique credentials. A Thread Group has 20 threads, each performing 10 iterations. What is the most likely consequence?

47 During a high-load test, the load generator reaches 100% CPU while View Results Tree displays every response. Which change most appropriately protects measurement validity?

48 In a legacy JMeter version that provides a WorkBench, a tester places an HTTP Proxy Recorder and several permanent samplers under the WorkBench, then saves the Test Plan without enabling WorkBench saving. What is the key risk?

49 A tester adds a Response Assertion as a sibling of two HTTP samplers under the same controller, expecting it to validate only the second sampler. What should be done to enforce that scope?

50 A CI job must run checkout.jmx without the GUI, override the target host, save raw results, and return a failing process status when JMeter itself cannot execute the test. Which command is most appropriate?

51 An HTTP Request Defaults element defines protocol https, host api.example.com, and port 443. A sampler in its scope explicitly defines host canary.example.com but leaves protocol and port empty. Which endpoint configuration is used?

52 A saved JMX test plan is committed to source control, but it fails on another load generator because a CSV file and a third-party sampler cannot be found. Which statement explains the failure?

53 A non-GUI test must generate an HTML dashboard immediately after execution. The result file and output directory do not already exist. Which command expresses this workflow?

54 A workload must sustain approximately 120 transactions per second. The measured average end-to-end transaction time is 2.5 seconds, with no think time. Using as a lower-bound concurrency estimate, what starting thread count is most appropriate before adding capacity for variability?

55 A controller contains two samplers and has both a 500 ms Constant Timer and a Uniform Random Timer configured from 0 to 1,000 ms. Ignoring execution time, what delay behavior should be expected before each sampler?

56 An API returns HTTP 200 with the JSON body {"status":"FAILED"} when a business operation fails. Which assertion strategy most directly detects this condition without treating all HTTP 200 responses as successful?

57 A Throughput Controller is configured for Percent Executions = 30 with Per User disabled and encloses a checkout transaction. Which interpretation is correct?

58 A login sampler returns a token that must be added to the next request. Which arrangement correctly respects JMeter processor timing?

59 A controller starts a remote test on four JMeter engines. The JMX file defines 250 threads, and no engine-specific property changes the thread count. Approximately how many total threads can the system generate?

60 A distributed test succeeds on the controller but every remote engine reports that users.csv is missing. The JMX and CSV exist only on the controller. What is the correct remediation?