Definitions

Question 1

workload

Answer 1

A workload is defined as concurrent users simulating a mix of business processes at a defined throughput rate

Question 2

Performance Testing

Answer 2

non functional, automated testing

determines how a system performs in terms of responsiveness and stability under a particular workload

Question 3

What does Performance Testing measure

Answer 3

investigates, measures, validate, and verifiy…

scalability, reliability and server resource usage

Question 4

RAM

Answer 4

Random Access Memory, type of memory, small and for immediate use

Question 5

SLA

Answer 5

Service Level Agreements: laws on quality of technology

Question 6

Performance Symptoms & Issues

Answer 6

• High Response Times
• Erroneous Data Returned
• Server Errors
• High Server Resource Usage
• Database Deadlock
• Too many database Scans
• Too many open connection

Question 7

what Value does Performance Testing add?

Answer 7

provides verification and confidence that the system can perform as intended,

understand how a system performs under increased load allowing informed decision around server-side capacity and system upgrades

Question 8

why is performance testing automated

Answer 8

resource rentention and easier to coordinate

people
equipment

Question 9

tools used for performance testing

Answer 9

• Apache Jmeter
• HP LoadRunner
• Neotys NeoLoad
• Microsoft Visual Studio Ultimate
• Radview WebLoad

Question 10

Load Balancer

Answer 10

like a traffic warden: split traffic

Question 11

LAN

Answer 11

local area network - computers are locally connected to one another

Question 12

WAN

Answer 12

Wide Area Network: computer are connected to computers in a wide geographical location

Question 13

SUT

Answer 13

system under test: generates system traffic

typically at protocol level

Question 14

what strains a system?

Answer 14

when users consumes memory, disk, I/O, bandwidth, processing power

Question 15

measured attributes of performance testing

Answer 15

• Response Time
• Throughput
• Resource Usage
• Stability
• Supportability

Question 16

common types of performance testing

Answer 16

• Load Test
• stress test
• Soak test

Question 17

CPU

Answer 17

central processing unit: the computer brain

Question 18

Load Test:

Answer 18

steady at defined load volume
validates expected load volumes
validates system performance under expected conditions

Question 19

stress test

Answer 19

breaking point or agreed maximum

Question 20

Soak Test

Answer 20

extended duration at a steady load volume
validate system stability over a typical working day (8/12 hours)
memory leak

Question 21

spike Test

Answer 21

fast increase in load.

Question 22

fail over test

Answer 22

part system failure.
verify that system remains active
had sand soft fail over types

Question 23

OpenSystemInterconnection

Answer 23

definesa networking framework to implement protocols in seven layers.

application
presentation
session
transport
network
data link
physical

Question 24

whats a thick client

Answer 24

computer application

Question 25

whats a thin client

Answer 25

server based application

Question 26

embedded system

Answer 26

An embedded system is a computersystem with a dedicated function within a larger mechanical or electrical system car, washing machine

Question 27

Prerequisites of testing

Answer 27

``` agreed and documented load profile performance accepted criteria understanding the system architecture clearly defined scope an exclusive test environment a populated database a load testing tool ```

Question 28

Load Model is built on

Answer 28

discussion with the business; expected usage web server log files analytical tools

Question 29

TVM

Answer 29

transaction volume model. translates what a user does into a load profile that models the user behaviour

Question 30

what is application scaling

Answer 30

verticals - increased the capacity of the nodes | horizontal - more nodes