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    Timed Interview Round: Six Core Questions

    A time-boxed practice round of six short interview questions on customer, Python, RAG, security and behavior topics, with self-scoring and a debrief checklist.

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    This lesson is part of FDE Interview: Answer Framework and Design Exercises. Enroll for free, then sign in, to read it in full.

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    What you'll learn: how to answer short interview questions in two minutes with a four-part structure, score yourself from 0 to 3, and pick lessons to revisit.

    At a glance

    Figure 1. The round: six boxes, then scoring and a debrief

    flowchart LR accTitle: The timed round accDescr: The reader sets a timer and answers six questions in order, two minutes each, covering customer scenarios, solution scoping, Python and API, RAG and agents, security and reliability, and a behavioral question. The reader then waits, scores each answer from zero to three, and finishes with a debrief that names the two weakest questions and the lessons to revisit. A["Q1 Customer scenario"] --> B["Q2 Scoping"] B --> C["Q3 Python and API"] C --> D["Q4 RAG"] D --> E["Q5 Security"] E --> F["Q6 Behavioral"] F --> G["Score, then debrief"]

    How to read this: each question gets a two-minute box; scoring happens after the whole round.

    • One structure fits all six topics: headline, reason, trade-off or failure, check.
    • Score each answer on three yes/no points.
    • The two weakest answers decide what to study next.

    Scenario

    Composite scenario, not a real company. A reader rehearsing for a customer-facing AI engineering loop asks a friend to play interviewer. The questions use the fictional distributor Lumen Industrial Supply, whose sales engineers use a product assistant built from datasheets, FAQs and a catalog. Times and scores are illustrative.

    What you will be able to do

    • Answer a short question in about two minutes with four parts.
    • Score six answers from 0 to 3 and total the round out of 18.
    • Map a weak answer to its lesson.

    Prerequisites

    Core ideas

    The structure of a two-minute answer

    Part Seconds What it contains
    Headline 15 The answer in one sentence
    Reason 60 The mechanism, with one detail
    Trade-off or failure 30 What it costs, or how it breaks
    Check 15 The number or test that shows it worked

    Scoring: three points per answer

    Point Awarded when
    Direct The first sentence answers
    Reasoned A reason and a trade-off or failure mode
    Specific A number, mechanism, tool or check

    A round is out of 18. Score from a recording, after a break.

    What to do with the total

    Below 9, revise the lessons for your two weakest questions and repeat the round. From 9 to 13, repeat those two answers. From 14, use new questions. These bands are a study aid, not an interview prediction.

    Worked example

    Predict first. A customer says the assistant "makes things up". List three things a strong two-minute answer contains.

    Answer

    A check that separates a retrieval problem from a generation problem, a way to find bad cases in bulk, and a measurable fix.

    A sample answer, about 50 words:

    "First I get three examples and check whether each claim is in the retrieved text. If not, the model went beyond its evidence: I add a refusal rule and a citation check. If so, retrieval was wrong, say a superseded datasheet: I add status tags. I track refusal rate beside groundedness."

    Scoring: Direct 1, Reasoned 1 (two causes and a trade-off), Specific 1 (named checks). Total 3.

    Practice task

    Run the round with a two-minute timer per question. Record yourself, answer aloud, skip the reference pages. Plan about 35 minutes: 12 answering, about 18 scoring (2 minutes replaying and 1 minute marking per answer) and about 5 debriefing.

    # Area Question
    1 FDE scenario Sales engineers stop using a pilot assistant after two weeks. What do you check first?
    2 Scoping (bank) A customer asks for "an AI assistant for everything". How do you scope the first release?
    3 Python and API (bank) A FastAPI endpoint calls a provider that sometimes takes 40 seconds. What do you change?
    4 RAG (bank) The assistant cites a superseded datasheet. Diagnose and fix.
    5 Security (bank) A product document tells the model to create a quote draft. What stops it?
    6 Behavioral (bank) Describe a time you told a customer that their request was not a good idea.

    For question 6, use a real experience of your own. Do not invent one.

    • Score sheet: mark Direct, Reasoned and Specific as 0 or 1 per question, and total each row.
    • Debrief: name the two lowest questions, whether content or structure caused it, and one change.

    In the interview: short questions hide follow-ups, so end each answer with the check.

    Exercise

    Explain it back. In three sentences, explain to a study partner how the two-minute structure and the three scoring points work together. A good explanation names the four parts, the three points, and what you do with the two lowest scores.

    Done when, after 48 hours, your two lowest questions, re-answered from a new recording, each gained a point, or you can explain why the first score was right.

    Hint 1: what was missing?

    Find the point not awarded.

    Hint 2: change one thing

    Change one part only.

    Common mistakes

    • Skipping the timer.
    • Scoring straight after answering.
    • Reciting reference answers.
    • Inventing a behavioral story.

    Knowledge check

    1. Why put the headline first?

    The interviewer can steer you only after hearing your position. A late headline also leaves no time for the check.

    2. An answer names three principles but no number or mechanism. How does it score?

    At most 2 of 3: it lacks Specific.

    3. Why score from a recording after a break?

    Straight after, you credit what you meant. A recording shows what you said.

    4. You score 15 of 18. What next?

    Run a new round with new questions, since repeats test memory. Also fix the answers that lost points.

    5. Why must the behavioral answer be your own experience?

    An invented story cannot survive follow-ups about what you did. If none fits, choose a smaller real one.

    You can now

    • Answer a short question in two minutes with four parts.
    • Score six answers and total the round.
    • Run a debrief that ends in one change.

    Further reading

    Last verified: 2026-11-02

    Next

    This is the last core lesson of the interview module. Continue with Positioning your enterprise experience.

    Enroll to keep reading

    Lesson 5 of 6 · FDE Interview: Answer Framework and Design Exercises

    A time-boxed practice round of six short interview questions on customer, Python, RAG, security and behavior topics, with self-scoring and a debrief checklist.

    In the rest of this lesson

    • Practice task
    • Exercise
    • Common mistakes
    • Knowledge check
    • You can now
    • Further reading

    Enrolling is free. It unlocks every lesson in FDE Interview: Answer Framework and Design Exercises, tracks your progress across devices and keeps your quiz scores. The newsletter is optional.

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