LoadRunner CPC认证考试复习试题

LoadRunnerCPC认证考试复习试题

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v156874LoadRunner CPC认证考试复习试题(2006年12月版本),部分答案将在以后公布. CPC考试在2006年12月之前是实验室上机考试,主要分为问答题,选择题和编程题,考试结果一个月之后揭晓,批卷在Mercury的亚太总部新加坡进行的.这里是部分的选择题. 另外,2007年据说将实行新的题型,改为跟SP考试同样的类型,所以题目难度可能有所降低.

1. How many default Widows: Apache counters are added?

a) 10 : 5

b) 11 : 9

c) 6 : 10

d) 9 : 4

e) 5 : 2

f) None of above

2. Can the list of default Windows monitors be changed?

a) No-this list is determined by Microsoft Corporation

b) Yes-modify the scenario .Irs file

c) No-only the domain administrator can modify it

d) Yes-modify a cfg file in LoadRunner’s installation directory

e) Yes-modify a dft file in LoadRunner’s \dat directory

f) All of the above

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3. For a host machine in a different domain, you try to monitor PerfMon on it and get an “access denied” message. What might resolve this problem?

a) Edit a cfy file in the LoadRunner installation directory to update permissions

b) Edit the registry on the host machine to update permissions by granting READ access toHKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Perflib

c) Ensure the host machine and the controller machine use the same version of WindowsNT

d) Run the netstat command from the host machine to update permissions

e) Run the net use command to update permissions

f) All of the above

9O[T9[{IG{1568744. If you run tracert and notice significant network delays while running the loadtest, depending on the network configuration, you could try the following to reduce net-work traffic:

a) Run PerMon and check network byte transfer rate on the controller machine

b) Have the network admin increase the physical packet size (MTU)for large data sets since fragments degrade performance

c) Initialize all vusers before loading them for the test

d) If the problem is the network, upgrade the NIC

e) Configure the controller to write run-time data to a shared network drive, rather than to the host machines

f) None of the above

+?0V M+M)P4V-Hx1568745. To monitor an Apache server:

a) You need the correct URL that reports server statistics

b) You need to monitor through port 80 to accurately measure the end user experience.

c) You can update the monitor defaults via a .cfg file in LoadRunner’s \monitors folder

d) You can update the defaults via a dft file in LoadRunner’s\dat directory

e) You can monitor Apache even if there is a proxy server between the controller and the Apache servers, after updating a LoadRunner .cfg file

f) All of above

7I;H C)d2R,]1568746. Choose the true answer(s) from the list below

a) You can change the agent’s working language from a list of 4 languages

b) Use path translation where controller and hosts map a different path to a shared drive where scrīpts are stored

c) You can select to not collate log files after a run

d) You can set a file transfer trace if you have problems transferring files

e) Temporary files ate saved during a run: LoadRunner agent files ate stored in Irr folders and controller files ate stored in brr folders

f) All temporary files are automatically deleted at the end of the run and cannot be automatically saved

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7. Which of the following is true when trouble-shooting the controller’s communication with load generators?

a) The controller always uses the host machine’s short name so all host machines must be in the same domain as the controller

b) To ensure the full machine name is used, modify a .ini file in LoadRunner’s \dat directory

c) An .exe file in LoadRunner’s \bin lets you check that tcp/ip is properly installed on a current machine since tcp/ip problems can prevent load testing

d) If the controller has multiple IPs, alias the controller’s name on all load generators via their. Hosts file

e) Path translation is only effective across different OS platforms

f) All of the above

2]Y,H8Q#Lu }1568748. When configuring online graphs per load test, you :

a) Can choose to display the x-axis with or without clock time

b) Can choose to let LR automatically pick the Y-axis or set s min max value for custom scaling

c) Can modify line colors, scaling and visibility of measurements on graphs

d) Can monitor multiple machine on one monitor graph

e) Cannot monitor multiple machines on multiple monitor graphs

f) All of above

,[O7ID imz/b^1568749. During a scenario run, the default storage location for vuser data is :

a) The controller’s temporary folder- this is configurable

b) The controller’s result folder- this is not configurable

c) The host’s installation folder-this is not configurable

d) The host’s temporary folder- this is configurable

e) The controller’s installation folder- this is configurable

f) None of above

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10. New features in LR 7.6 include:

a) Wan emulator

b) Multi-protocol support

c) Remote global performance monitor

d) MS-Word report generator

e) EJB analysis – new views

f) Analysis data import wizard

g) All of the above

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11. Pick the top time transaction(s) for your 3 rd run :

a) Login

b) Logout

c) FlightSearch_roundTrip

d) FlightSelect_roundTrip

e) FlightPurchase_roundTrip

f) FlightSearch _oneWay

g) FlightSelect_ oneWay

h) FlightPurchase_oneWay

i) DeleteItinerary

j) ViewItineraryh_roundTrip

12. What must happen in order to generate analysis data :

a) Transactions must be used

b) Performance monitors must be used

c) User data points must be defined

d) Rendezvous functions must be enabled

e) Online graphs must be viewed

4z"QI#]6}f(Y L15687413. You can prevent excessive use of disk space for the analysis database by :

a) Verifying list separator registry options ate the same on your machine as on the database machine

b) Instructing LoadRunner to save in Access 2000 rather than Access 97

c) Storing small databases on aSQLserver or MSDE machine

d) Storing large databases on a SQL server or MSDE machine

e) Clicking a button in the Options>database tab

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14. If using a time range filter for stored scenario data:

a) The running vusers graph expands to suit

b) The processing time decreases

c) The db size increases to track what is ignored

d) The db size decreases

e) This behavīor will be globally applied

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15. When saving display options and filters for future reuse, available features include:

a) Automatically apply this template to a new session

b) Use automatic granularity

c) Generate the following automatic HTML report

d) Automatically save the session as

e) All of the above

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16. From recent versions of the analysis tool, you :

a) Cannot view the controller’s vuser groups information

b) Can view the controller’s build number

c) Can view the controller’s scheduling details

d) Can distinguish between summary and complete analysis data

e) All of above

d\UM H$p'DGd15687417. Which of the following customizations can you apply to a subset of graphs?

a) Can change the title font and text

b) Cannot change the background/foreground colors or add images unless exported

c) Can change the depth perception on the graph using an additional dimension

d) Cannot rotate or tilt

e) All of the above

,g"B,c0s/r%g15687418. To standardize a gragh is to

a) Focus on behavīor patterns

b) Cancel axtual vaues

c) Have y-axis values converge around zero

d) Plot standard deviation values

e) None of the above

%N Ra ] k8Us4l15687419. The Transactions per Second graph helps you to determine load on the system at any given moment

a) False

b) True

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20. The Response Time (under load) graph helps you create a gradual load

a) False

b) True

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21. The graph helps you calculate the time to first buffer.

a) False

b) True

E\(~ ?)B15687422. If you have min and max acceptable transaction times defined, you can use the Distribution graph to determine if server performance is within an acceptable range.

a) False

b) True

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23. The auto correlation options include:

a) Automatic

b) Correlate data based on X second intervals

c) Manual

d) Correlate data based on X minute intervals

e) None of the above

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NF G.J|`m15687424. When tuning a system, web/web-app server metrics to check include:

a) Browser version

b) Physical memory

c) Load balancing algorithm

d) Images per page

e) CPU

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25. Two examples of common database server problems are:

a) Corrupt .dll files

b) Inefficient index design

c) Fragmented databases

d) Compacted data

e) Short transactions

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26. When making improvements to SSL web application performance, include these steps:

a) Cache the session identifiers from each transaction

b) Avoid excessive use of SSL and re-design pages that have low data sensitivity to not use SSL.

c) Use “keep-alive” enhancement features available with most web browsers

d) Change level of security according to level of data sensitivity

e) Use SSL accelerator appliances and cards

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27. Network bottlenecks are indicated during a test when you add considerable load but:

a) Sever-side components are barely affected

b) Outgoing replied are significantly delayed compared to incoming requests

c) Receive timeouts only

d) No idle servers available

e) All of above

3I7mz)ui.LE15687428. Load tests and subsequent data analysis are recommended:

a) During initial load testing of the test system to determine its final state

b) After tuning the system to ensure previous problems were fixed

c) During finial load testing of the system to prove new bottlenecks exist

d) When determining configuration changes to improve response times

e) When determining architectural changes to improve response times

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29. Available performance reports include:

a) Detailed Summary

b) Transaction Performance by Vuser

c) Detail Transaction

d) Failed Transactions

e) All of above

1n2a-| LS0bBXd7J15687430. Available activity reports include:

a) Scenario Summary

b) Failed Transaction

c) Failed Vuser

d) Scenario Execution

e) All of above

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31. Two prerequisites for merging graphs are:

a) Both graphs must be identical

b) The graph should have identical axes

c) Both graphs should be opened first

d) Both graphs should share one common axis

e) None of the above

$?U})R'P0K U At"@h15687432. Cross-result graphs can be use to:

a) Check 2 different result files(maximum)

b) Test software versions

c) Determine system capacity

d) Benchmark hardware

e) All of above