[Solved] A system accepts a password length between 8 and 12 characters inclusive.... Which test inputs cover both techniques effectively? | Testing Fundamentals

Testing Fundamentals - Functional Testing Techniques

A system accepts a password length between 8 and 12 characters inclusive. You want to combine boundary value analysis with equivalence partitioning. Which test inputs cover both techniques effectively?

A7, 8, 9, 11, 12, 13

B8, 10, 12

C6, 7, 13, 14

D9, 10, 11

Step-by-Step Solution

Solution:

Step 1: Identify boundaries and neighbors for length 8 to 12
Boundaries: 8 and 12; neighbors: 7 (below), 13 (above); equivalence partitions: invalid below 8, valid 8-12, invalid above 12.
Step 2: Check which option covers boundaries, neighbors, and partitions
7, 8, 9, 11, 12, 13 includes 7 (invalid below), 8 (boundary), 9, 11 (valid), 12 (boundary), 13 (invalid above), covering both techniques.
Final Answer:
7, 8, 9, 11, 12, 13 -> Option A
Quick Check:
Boundaries + neighbors + partitions = 7, 8, 9, 11, 12, 13 [OK]

Quick Trick: Combine boundaries with valid and invalid partitions [OK]

Common Mistakes:

Testing only boundaries without partitions
Ignoring invalid input partitions
Selecting only valid middle values

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Which test inputs cover both techniques effectively?

Step 1: Identify boundaries and neighbors for length 8 to 12

Step 2: Check which option covers boundaries, neighbors, and partitions

Final Answer:

Quick Check:

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