Answer:
Disk space
Networking bandwidth
Explanation:
Desktop synchronization application is used to synchronize the data on your computer with some cloud or internet storage space such as google drive.
The major resources that are required for this purpose are
Disk Space
Disk space is used for the data to be transferred from computer to cloud and vise versa.
Network Bandwidth
Network bandwidth is also required for uploading and downloading huge amount of data to or from cloud.
