During a load test, the team observes that response times are increasing, but CPU and memory utilization on the application servers are low. They also notice that the network bandwidth is near saturation. What is the most likely bottleneck?

The load balancer is misconfigured

The application servers are not powerful enough

The database server is overloaded

A performance test team is setting up a test environment for a new application. They plan to use a subset of production data and a scaled-down infrastructure. What is the most important consideration to ensure the test results are valid?

Running the test on a weekend to avoid interference

Using the latest version of the test tool

Using the same operating system as production

Ensuring the test environment is representative of production

Which of the following is an example of a resource utilization metric?

Throughput (transactions per second)

What is the purpose of using realistic test data in performance testing?

To eliminate the need for a dedicated test environment

To ensure that the test results are representative of real-world usage

To make the tests easier to maintain

To reduce the time required to execute the tests

What is the purpose of a performance test specification?

To identify the business goals of the system

To outline the overall testing strategy and resource allocation

To define detailed test cases, workload models, scripts, metrics, and acceptance criteria

To record the results of the performance tests

Certified Tester Advanced Level Technical Test Analyst

Domain 4Objective 3

Performance Testing CTAL-TTA Practice Questions (Page 4)

Part of the Domain 4: Quality Characteristics for Technical Testing domain, which makes up ~14% of our current practice bank. ISTQB does not publish an official question count, but from its 120-minute exam (~50–80 total, ~7–11 in this domain), expect 1–2 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

7concepts

Questions 16–20

16expert · medium
During a load test, the team observes that response times are increasing, but CPU and memory utilization on the application servers are low. They also notice that the network bandwidth is near saturation. What is the most likely bottleneck?
Select an answer first
17application · medium
A performance test team is setting up a test environment for a new application. They plan to use a subset of production data and a scaled-down infrastructure. What is the most important consideration to ensure the test results are valid?
Select an answer first
18foundation · easy
Which of the following is an example of a resource utilization metric?
Select an answer first
19foundation · easy
What is the purpose of using realistic test data in performance testing?
Select an answer first
20foundation · easy
What is the purpose of a performance test specification?
Select an answer first

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