Free EMC D-NWR-DY-01 Practice Exam with Questions & Answers

After updating the NMC server software, older Java Web Start cache entries on the NMC client may conflict with the updated application. Clearing the Java cache forces the client to download the updated application components from the server, resolving the “Unable to Launch the application” error.

In current NetWorker versions (9.1 and later), the default Target Sessions setting for a CloudBoost device is 10. This value helps balance load when multiple backup streams are directed to the CloudBoost appliance without imposing a hard cap (that’s what the Max Sessions setting is for).

The vProxy appliance supports three transport modes - HotAdd, NBD, and NBDSSL - but Dell EMC strongly recommends using HotAdd for the fastest, most efficient VM backups. HotAdd mounts target VM disks directly into the proxy VM’s address space, avoiding network hops, reducing latency, and offloading I/O from the ESXi management network

When a user logs in to the NetWorker User interface, the NetWorker Authentication Service (AuthC) generates a SAML2 Token to securely authenticate and authorize the session. This token format supports federated identity and secure token-based access across the NetWorker environment.

To use HotAdd transport mode exclusively, the vProxy appliance must reside on the same ESXi host that has direct access to the datastores containing the virtual disks of the VMs being backed up. This ensures that the virtual disks can be hot-added to the proxy for efficient backup processing without network data transfer.

The Console Security Administrator role is the only NMC role that can add, delete, and modify NetWorker Authentication Service local‐database users and control user access to managed applications (e.g., NetWorker servers).

If Client Direct is unavailable (for example, due to network or mount issues), NetWorker automatically falls back to a standard storage‑node backup so that the data still gets protected.

Client Direct lets clients write deduplicated streams straight to either an AFTD (via CIFS/NFS) or a DD Boost device, bypassing the storage node’s data path.

To install the CloudBoost virtual appliance on a VMware ESXi host, the implementation engineer must deploy an OVF template provided by Dell. This template includes the necessary configuration for the virtual machine and is the standard method for deploying virtual appliances in VMware environments.

For backing up an AIX system to cloud object storage with maximum performance, the recommended approach is to use a CloudBoost appliance. CloudBoost provides optimized deduplication, compression, and encryption, enabling efficient and secure backups from legacy platforms like AIX directly to cloud storage.

The vProxy appliance requires the vCenter server to use its default HTTPS port; it does not support a non‑default vCenter HTTPS port. Therefore port 443 is the only port that cannot be changed for VMware Protection with vProxy.