Administration DBA should be familiar with the below activities...
SQL Server Architecture
Installations and configurations
Database creations and configuration
Backup and Restoration
Connectivity Configuration and troubleshooting
Managing security
Maintenance of databases-Re-indexing and update statistics
Basic knowledge about DB corruption
Basic Knowledge about managing performance Issues
Knowledge about Log shipping Always On
T-SQL knowledge
SSIS/DTS
DMVs/DBCC commands
Clustering Architecture
Locking and Blocking
