ITPEC IP April 2025 Question 1

Source exam: ITPEC IP April 2025Topic: Basic Theory

ITPEC IP April 2025 — Question 1 of 100

Agree is produced only when all three inputs are Agree — each box behaves as a logical AND operation.

The first box outputs Agree only if Input 1 and Input 2 are both Agree. The second box then compares that result with Input 3 and outputs Agree only if both are Agree. Therefore its output is Agree exactly when Input 1, Input 2, and Input 3 are all Agree.

Answer (d)

Why not others:
- (a) describes OR: one Agree would be sufficient

- (b) and (c) describe a majority rule, but the boxes do not count votes; a single Disagree anywhere makes the chained result Disagree

Key rule: Chaining two-input AND operations preserves AND: (A AND B) AND C is true only when A, B, and C are all true.

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