EMC DEA-1TT5 Questions Answers

MDM is a control that restricts access to an organization’s resources only to authorized mobile devices.

In your scenario, a full backup was performed on Sunday and incremental backups were performed on Monday, Tuesday and Wednesday. If files were accidentally deleted Thursday morning, you would need two backup copies to restore the files: the full backup from Sunday and the incremental backup from Wednesday. This is because the incremental backup from Wednesday would contain all the changes made since Sunday’s full backup.

A continuous data protection (CDP) is a system that backs up data on a computer system every time a change is made. CDP maintains a continuous journal of data changes and makes it possible to restore a system to any previous point in time.

An OSD storage system is an object-based storage system that stores data as objects rather than files or blocks1. An OSD storage system consists of OSD nodes that have two key services: metadata service and storage service1.

The metadata service is responsible for generating the object ID from the contents of a file1. The object ID is a unique identifier that represents the data and its attributes. The metadata service also maintains the mapping of the object IDs and the file system namespace1. The file system namespace is a logical structure that organizes files into directories and subdirectories.

The storage service manages a set of disks on which the user data is stored1. The storage service stores data as objects in physical OSD containers. Each OSD container has a unique address that corresponds to an object ID. The storage service also handles requests from clients to read or write data to or from objects.