BTL1 performance-based questions: what they are and how to practise them
BTL1 is a 24-hour practical incident-response assessment from Centri, formerly Security Blue Team. You investigate a lab environment and receive immediate grading and feedback. Our short practice tasks build supporting skills and do not reproduce that exam environment.
Whether you can investigate evidence and reach supported conclusions. Practise working with phishing artifacts, logs, forensic data, and incident-response workflows in a hands-on environment.
On the real exam these appear as applied investigation tasks. Open book and unproctored — course material, personal notes and search engines are allowed, AI assistants are prohibited
Record findings with their supporting evidence so you can verify each conclusion and distinguish an observation from an assumption.
Use the full window rather than treating it as a timed sitting. It exists so you can be thorough.
Keep contemporaneous notes as you work. Reconstructing your reasoning at the end is slower and less accurate than recording it as you go.
Try three questions. Understand every answer.
Original English practice examples, with answers and explanations available here. No account required. These are independent teaching examples, not official exam questions or exam dumps.
BTL1 is a practical investigation exam. These multiple-choice examples rehearse analytical decisions; they do not reproduce its hands-on exam format.
Question 1 of 3 · Phishing and security operations
Answer and explanation
Best answer: Integrity is unverified and the mismatch needs investigation
The mismatch means this copy has not passed integrity verification. Preserve the acquisition record and investigate the transfer or obtain a verified copy before relying on it.
Why the other choices fit less well
Names and sizes can remain unchanged when bytes differ. Silently replacing the acquisition hash conceals the discrepancy and undermines the evidence record.
Best answer: Preserve the message and inspect headers and destinations in the approved analysis environment
Preserve the original message and inspect the actual addressing and destinations safely. The discrepancies support investigation without requiring a risky visit from a normal workstation.
Why the other choices fit less well
A display name is not proof of origin. Opening the link on production exposes the user. Mass forwarding spreads potentially harmful content and can alter the evidence context.
Best answer: The image hash, source identifier, collection details and documented transfer history
Identify the evidence and acquisition, record its integrity value, and document who handled it and when. Those records support integrity checks and a traceable handling history.
Why the other choices fit less well
A nickname, desktop screenshot or disconnected filename does not establish the source, integrity or transfer history. Keep the original identifiers rather than replacing the acquisition record.
Paid question-bank access is a one-time purchase, with no recurring subscription. Official exam registration, vouchers and provider labs are separate from CertSprint practice.
What you get here
How we practise them
Our BTL1 bank contains 46 PBQ-style exercises in two formats: matching tasks, where you pair each requirement to the capability that satisfies it, and ordering tasks, where you sequence the steps of a procedure. Each one carries the same full explanation as the multiple-choice questions, covering why the correct arrangement is right and why the plausible alternative is not.
These train the reasoning the exam tests — sequence, placement, and matching — rather than reproducing a vendor's simulation interface. Nothing here recreates the exam environment itself, and no practice product legitimately can.
Because the BTL1 exam is practical, our exercises here train the underlying reasoning rather than mirror the exam interface. Confirm current pass thresholds and retake terms on the official Centri page, as they change periodically.
See where you stand on BTL1
25 free questions, no card required. Your domain scores show which areas need work before you book the exam.
Work through the scenario, identify the evidence that matters, then compare your reasoning with the explanation. Use domain scores to choose your next study session. A practice percentage is a learning signal, not a prediction or an official exam score.
The newest practice set is available in eight languages. Earlier exercises may appear in English. These are original independent practice scenarios, not official exam questions.
BTL1 is a practical investigation exam. These questions and matching exercises complement hands-on labs; they do not reproduce the provider’s exam environment.
