
Box 1: will have no access
The IP 193.77.134.1 does not have access on the SAS since this IP falls outside of the allowed IP address range for SAS. Hence "will have no access" is correct.
Box 2: will be prompted for credentials
The net use command is used to connect to file shares.To mount an Azure file share, you will need the primary (or secondary) storage key. SAS keys are not currently supported for mounting. Based on the provided SAS exhibit, IP address is an allowed IP and also on given date SAS is active, but account storage key is must to have to run the "net use" command , which is not provided in the question. Hence "will be prompted for credentials" is correct option for this.
net use R: \rebelsa1.file.core.windows.net\rebelshare <storage key> /user:Azure\rebelsa1 References:
https://docs.microsoft.com/en-us/azure/vs-azure-tools-storage-manage-with-storage-explorer?tabs=windows
https://feedback.azure.com/forums/217298-storage/suggestions/14498352-allow-azure-files-shares-to-be-mounte
https://docs.microsoft.com/en-us/azure/storage/common/storage-sas-overview
https://docs.microsoft.com/en-us/azure/storage/files/storage-how-to-use-files-windows
http://www.rebeladmin.com/2018/03/step-step-guide-create-azure-file-share-map-windows-10/