Chapter 17: Big Data Storage – Azure Data Lake

1. In general, it is easier to manage security groups—in that case, you do not have to add an individual entity each time a new user is granted access.
2. RBAC is based on roles, while POSIX ACL is based on computing the set of permissions based on the actions assigned to a user or a group.
3. There are no file size limits in ADLS.
4. It depends on your requirements—while the particular structure may not affect the performance, file sizes may.
5. Yes, ADLS will work with any language that is able to connect to it.
6. Azure Storage introduces file size limits and capacity limits. It also offers a much simpler security model than Azure Data Lake Storage.
7. You have to implement replication to a secondary region.