ISTQB CT-PT Exam - Topic 1 Question 14 Discussion

Actual exam question for ISTQB's CT-PT exam

Question #: 14
Topic #: 1

You have run a load test. When examining the metrics, you see that the virtual users experienced many timeouts and excessive wait times. The system throughput metrics exceeded expected results, even during peak times.

Based on your analysis, what conclusion should you draw?

ANetwork infrastructure should be investigated.

BProcessing speed is too slow.

CVirtual users are exhibiting impatient behavior.

DNew test data is needed.

Show Suggested Answer

Suggested Answer: B

If timeouts and excessive wait times occur, but throughput is high, this suggests that the system is unable to process requests fast enough. This points to slow processing speed due to CPU bottlenecks, memory limitations, or inefficient database queries.

Option A (Network infrastructure investigation) would be relevant if throughput was low or variable.

Option C (Impatient virtual users) is irrelevant; virtual users follow scripted behaviors.

Option D (New test data) does not address the core issue.

by Margurite at Nov 22, 2025, 01:41 PM

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Kanisha

17 days ago

D might help, but it feels like a secondary issue.

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Shawnna

23 days ago

B is valid too. We should optimize processing speed.

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Clarinda

28 days ago

A is definitely a priority. We need to check the network.

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Jillian

1 month ago

C seems off. Users can’t be blamed for waiting too long.

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Josefa

1 month ago

I lean towards B. If processing is slow, that’s a big problem.

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Vallie

1 month ago

I think A makes sense. Network issues could cause timeouts.

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Carman

2 months ago

New test data? I doubt that's the problem here.

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Nakita

2 months ago

Definitely need to check the network infrastructure.

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Anjelica

2 months ago

Wait, are virtual users really that impatient?

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Bette

3 months ago

I think it's more about processing speed.

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Craig

3 months ago

Sounds like a network issue to me.

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Evangelina

3 months ago

D) New test data is needed. I bet they were all using Internet Explorer.

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Jackie

3 months ago

B) Processing speed is too slow.

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Glenna

3 months ago

C) Virtual users are exhibiting impatient behavior.

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Shenika

3 months ago

A) Network infrastructure should be investigated.

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Annelle

4 months ago

New test data seems less likely since the metrics show high throughput, but I guess we should rule out option D too.

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Cathern

4 months ago

I think we had a practice question about user behavior affecting performance. Could option C be a possibility?

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Moon

4 months ago

I'm not entirely sure, but if the throughput is high, it might suggest the processing speed isn't the main issue, right?

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Claudio

4 months ago

I remember discussing how timeouts can indicate network issues, so maybe option A is worth considering.

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Raymon

4 months ago

Alright, let's think this through. High throughput but long wait times and timeouts... Sounds like a potential bottleneck in the network, so I'd start there. But I'd also want to take a close look at the processing speed to make sure that's not the issue.

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Raymon

4 months ago

Hmm, this is a tricky one. I'd probably start by looking at the network infrastructure, since the timeouts and wait times point to potential issues there. But the high throughput is also interesting, so I'd want to dig into that as well to see if the processing speed is the real culprit.

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Jonelle

5 months ago

Whoa, this is a tough one. I'm not sure if the issue is with the virtual users being impatient or if there's a real problem with the system. I think I'd lean towards investigating the network first, since the high throughput suggests the processing power is there.

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Lashaunda

5 months ago

The virtual users must have been playing Wordle during the test.

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Viola

5 months ago

Okay, let's see. High throughput but long wait times and timeouts... Sounds like the system is getting overloaded, but the problem could be either in the processing or the network. I'd probably start by looking at the network infrastructure to rule that out first.

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Levi

6 months ago

Hmm, this seems like a tricky one. I'd want to look closely at the throughput metrics and see if there's a bottleneck in the processing speed. But the timeouts and wait times also point to potential network issues, so I'd want to investigate that too.

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