EXHIBIT 99.1
EXPLANATION OF RESPONSES
| (1) | Held directly by Insight SN Holdings, LLC |
| (2) | Held directly by Insight SN Holdings 2, LLC |
| (3) | Held directly by Insight Venture Partners (Cayman) X, L.P. |
| (4) | Held directly by Insight Venture Partners (Delaware) X, L.P. |