# Assessment 5

#### Match each opcode with its best use cases:

| Opcodes   | Use Cases                                               |
| --------- | ------------------------------------------------------- |
| OP\_DEPTH | Creating a script that accepts either 1 or 2 signatures |
| OP\_SIZE  | Validating that a hash is exactly 32 bytes              |
| OP\_SIZE  | Checking if a username is under 20 bytes                |

**Notes to Learners**

OP\_DEPTH answers "how many inputs?" while OP\_SIZE answers "how big is this input?" Choose based on whether you're checking **quantity** (depth) or **size** (bytes).


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```
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```

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