A Test Scenario can be defined as
the waiting process during test execution for multiple virtual users to arrive at a certain point
playback the script in multi-user mode
the events that occur during each testing session
recording a script
Which among the below is potential to negatively impact performance test results ?
Multiple web servers with a load balancer
Data caching on client side
Parameterize input parameters
Placing a rendezvous point
A project manager concludes that his application doesn't need to be Performance tested as it is an out of the box implementation. You do not agree to his conclusion because
Out of the box implementations usually doesn't meet performance requirements
Project manager was given an agressive schedule as it is an Out of the box implementation
Out of the box implementation may have undocumented performance problems
Less experianced deveopers were involved as it is an out of the box implemenation
A customer's test server has 50% resources (Memory, CPU) compared to production server. What is your recommendation to carry out a performance test on a test server
No need to do a performance test as test and production servers are not similar
Recommend the customer to upgrade the test server equivalent to production server proir to the performance test
Carry out the performance test with 50% anticipated production load
Carry out the performance test with 100% anticipated production load
An application discovered performance issues though it was performance tested proir going live. Pick probable reason(s) why the performance issues were not discovered during testing
Concurrent users defination unclear
Test data not suffeciently populated
Test & prod environments differ significantly
Network bandwidth not simulated
All of the above
Unusually high pages per second can be reduced by adding
Memory
CPU
Disk
Network bandwidth
Which of the below cannot remediate a performance problem associated with processor
Add more processing power
Improve processor cache
Add parallel processing power for load balancing
Implement RAID 1 disks
Which of the below does not contribute to performance improvement in disk drives
RAID 0
RAID 1
RAID 10
RAID 5
An internet trading system with 64 Kbps lines to end users has been web enabled. The average web page size is 40 KB. Users are complaining about response times exceeding 2 seconds. What would you recommend as an immediate possibility to improve performance?
Tuning of DBMS
Tuning of web server
Ask users to work at nights
Use of a web booster such as Citrix or NetScaler
If an application is running slowly, which of the following is true?
You can always improve performance by using more CPUs
You can always improve performance by using more RAM
You can always improve performance by using more disks
None of the above