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PyTorch Certified Associate PTCA

100 real Linux Foundation / CNCF PTCA questions with answers checked by certified engineers. Start free, upgrade when you are ready.

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Questions
100
Exam code
PTCA
Last updated
Oct 17, 2026
Language
English
Certification
PyTorch Certified Associate
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PTCA sample questions

2 questions from the PTCA practice set, with the answer and explanation.

  1. Question 1
    What is the default dtype of a tensor created from Python float values with torch.tensor?
    • A.
      torch.float32
    • B.
      torch.int64, because Python numbers are stored as integers by default and need no conversion step
    • C.
      torch.float64, because Python floats are double precision values in the underlying C++ backend
    • D.
      torch.uint8, which is the smallest type that can hold a floating point literal without loss
    Show answer

    Correct answer:

    • A.
      torch.float32

    Explanation

    torch.tensor infers float32 from Python floats, which is the default floating point dtype that torch.get_default_dtype() reports. The float64 option is the most tempting because Python floats are double precision, but PyTorch does not keep that precision unless the dtype is set explicitly. The int64 and uint8 choices misread how Python numbers are converted into tensors.
  2. Question 2
    An nn.Module subclass defines its computation in the forward method, and calling the module instance, as in model(x), runs that method through __call__.
    • A.
      True
    • B.
      False
    Show answer

    Correct answer:

    • A.
      True

    Explanation

    True. nn.Module.__call__ handles registered hooks and then invokes forward, which is why training code calls model(x) rather than model.forward(x). Defining the computation anywhere else would not be picked up by the module's call machinery.
Exam detail

About Linux Foundation / CNCF PTCA

Related Practice Questions

We help aspirants prepare for the Linux Foundation / CNCF certification exam without spending money on preparation materials. Many candidates download the PTCA PyTorch Certified Associate practice questions PDF here. You can easily download Linux Foundation / CNCF PTCA PDF practice questions for free. If you have any questions about the exam product, you can view the comments. You can also publish comments about PTCA exam questions in PDF format.
FAQ

PTCA FAQ

What is the Linux Foundation / CNCF PTCA exam?

PTCA is the PyTorch Certified Associate exam from Linux Foundation / CNCF. The exam runs for 120 minutes.

How many questions are in the PTCA practice set?

The full PTCA practice set has 100 questions with answers.

Can I try PTCA practice questions for free?

Yes. This page has 2 free PTCA PDF files shared by other candidates, and a free online test engine where you can answer PTCA questions in your browser. No account is needed.

What formats are the PTCA practice questions available in?

PTCA practice questions are available in these formats: PDF and Online Practice Exam. You can also get them together in a bundle.

How much does PTCA practice material cost?

PTCA practice material starts from $49 USD.

Are these the actual PTCA exam questions?

No. They are exam-style practice questions written from the official PTCA exam objectives, not actual exam content.

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