What is the maximum number of Dell EMC Data Domain systems that can be added to a Data Doman Management Center?
Answer : C
A maximum of 100 DD systems can be added to a DD Management Center.
References:
EMC Data Domain Management Center Version 1.3, User Guide, page 24
What needs to be configured when implementing LACP on a Dell EMC Data Domain System to gain access to the underlying aggregated link connection?
Answer : B
Creating a virtual interface for link aggregation.
Create a virtual interface for link aggregation to serve as a container to associate the links that participate in aggregation.
A link aggregation interface must specify a link bonding mode and may require a hash selection. For example, you might enable link aggregation on virtual interface veth1 to physical interfaces eth1 and eth2 in mode LACP (Link Aggregation Control Protocol) and hash XOR-L2L3.
Procedure
Etc.
References:
Dell EMC Data Domain Operating System Version 6.1, Administration Guide, page 72
An administrator is looking for a way to change each company department for storage utilization on their Dell EMC Data Domain systems. How can this be implemented in Data Domain?
Answer : A
The Cloud Unit may be used by multiple MTrees. Individual data movement policies are set for each MTree moving data to the Cloud Unit.
References:
ECS And Data Domain Cloud Tier Architecture Guide
What is the maximum capacity that a cloud unit can have with a Dell EMC Data Domain DD9500?
Answer : D
EMC Data Domain DD9500, Up to 1.7 PB Usable Capacity.
References:
https://www.corporatearmor.com/product_info.php?products_id=13351
Which protocol is used with Dell EMC Data Domain Cloud Tier to transfer data between a Data Domain system and the cloud?
Answer : C
Dell Data Domain replicator protocols:

References:
https://www.emc.com/collateral/software/white-papers/h7082-data-domain-replicator-wp.pdf
In an SMT environment, which Dell EMC Data Domain role is responsible for scheduling and running the backup application?
Answer : C
SMT = secure multi-tenancy.
References:
https://www.emc.com/collateral/white-papers/h14474-dd-smt-replication-service-solution-brief.pdf
https://www.emc.com/collateral/white-papers/h14474-dd-smt-replication-service-solution-brief.pdf
Which server executes the read/write requests in a backup environment consisting of a Dell EMC Data Domain and IBM Spectrum Protect?
Answer : C

CommVault Simpana software is a data protection suite for large-scale enterprises.
The first Simpana system installed must be configured as a CommServe. A CommServe defines a backup domain called a CommCell that manages member Clients, Media Agents, and data protection storage resources. The CommServe contains a SQL database that keeps track of the various agents and data protection metadata, such as the media index.
A CommVault Media Agent server is any system, including the CommServe, that has the iDataMediaAgent installed.