Question: the tcp and udp protocols both exist at what layer of the osi model
[{'answer': 'layer - 4'}, {'provenance': [{'wikipedia_id': '22747', 'title': 'OSI model', 'start_paragraph_id': 50, 'start_character': 0, 'end_paragraph_id': 50, 'end_character': 291, 'bleu_score': 0.8780099567239781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6614096319373601669}, 'section': 'Section::::Layer architecture.:Layer 4: Transport Layer.\n'}]}]