E20-385 Exam Questions

Which two link aggregation methods are supported on an EMC Data Domain system?

You have been tasked with setting up a VTL on an EMC Data Domain system in an EMC NetWorker environment. To maximize deduplication, which value should be used for the "Target Sessi...

A customer is writing critical data to the pre-configured, default NFS share on an EMC Data Domain system for subsequent replication to a remote site. Which directory on the local...

Which characteristic accurately describes EMC Data Domain Encryption software?

What is a characteristic of an EMC Data Domain Encryption software option?

What is a characteristic of EMC Data Domain pool replication?

What is a valid use for link aggregation on an EMC Data Domain system?

Which EMC Data Domain feature requires a software license?

Which EMC Data Domain system feature requires a license?

On 8/15, what causes the drop in disk usage on the EMC Data Domain system as illustrated in the exhibit?

An EMC Data Domain system has 300 TB of usable storage with 270 TB currently used. Daily backups are consuming an additional 5 TB per day. Based on this trend, what will occur if n...

A customer has a Data Domain system with one expansion shelf using RAID 6 disk protection. An active data disk has failed while another data disk is going through the reconstructio...

What is an advantage of inline deduplication over post-process deduplication?

What is a component of Data Domain Data Invulnerability Architecture that protects against data loss?

A customer has two EMC Data Domain systems deployed with a collection replication configuration. Based on best practices, what should be configured if the customer has less than 6...

Which EMC Data Domain technology allows inline deduplication to occur fast and efficiently?

Which variable length segment size range is used for EMC Data Domain deduplication?

In an EMC Data Domain system, which local compression algorithm is used by default?

Which benefit is provided by EMC Data Domain Stream-Informed Segment Layout (SISL) scaling architecture?

A customer is deploying EMC Data Domain systems in multiple sites to replace their existing tape backup infrastructure. Which feature will allow the customer to copy their data bet...

A customer is looking for a solution to backup their 20 TB EMC NAS system. The data has a low change rate and a 30-day retention period. The customer has a requirement to directly...

A customer is looking for a solution to backup their 20 TB of image and video data on a Microsoft Windows server. The data has a high change rate and 3-day retention period. The cu...

A company is backing up database, e-mail, and file system data types in their data center to a Data Domain system using a single backup server. The backup system administrator crea...

Where is data that is written to an EMC Data Domain Archiver system initially stored?

What is a benefit of EMC Data Domain Boost?

A customer is attempting to create a read-only copy of their backup data on an EMC Data Domain system to achieve additional protection. Which Data Domain system feature would accom...

Which operation uses the fastcopy command?

What is the maximum number of snapshots on an EMC Data Domain system?

An EMC Data Domain customer has setup a DD VTL for their backup software. They created slots, drives, and tapes. The backup software shows the tape drives and the robot, but not th...

A customer is looking for the following requirements to replicate data: - Entire /backup directory replicated - All user accounts and password are replicated - Full system data rep...

When setting the MTU size for an Ethernet interface on an EMC Data Domain system, what is the maximum supported value?

On an EMC Data Domain system, which licensed software option allows an administrator to protect data from deletion by the backup software?

When using the EMC Data Domain Virtual Tape Library software option, which backup software operation allows space to be reclaimed on a Data Domain system?

When using link aggregation across Ethernet ports on an EMC Data Domain system, which OSI layer provides load balancing by use of the MAC address?

When using link aggregation across Ethernet ports on an EMC Data Domain system, which OSI layers provide load balancing by use of the IP layer?

When creating virtual tapes on an EMC Data Domain system by specifying "L3" in the suffix of the virtual media barcode, which tape size will be created?

When creating virtual tapes on an EMC Data Domain system by specifying "L2" in the suffix of the virtual media barcode, which tape size will be created?

Based on the exhibit, what is the total aggregate compression factor on the EMC Data Domain system?

When logging into an EMC Data Domain system for the first time during installation, which connection type can be used?

When looking at the output from system show performance as illustrated in the exhibit, what does the information outlined in the box represent?

A customer is running NFS backups with eight Symantec NetBackup Media Servers. The EMC Data Domain system is receiving data at 700 MB/s. What is a possible cause if the system is a...

When looking at the output from system show performance as illustrated in the exhibit, what is represented by the value 26.7?

An EMC Data Domain customer has been achieving a compression ratio of 14:1 for database backups over the past year. Two weeks ago the aggregate compression dropped from 14:1 to 4:1...

On an EMC Data Domain system, what is the purpose of the log host add <host> command?

What does the term "compression factor" refer to in the exhibit?

An organization has 3000 GB of file system data with a daily change rate of 10%. Assume the first backup reduces by a factor of 3 (3x), daily incremental backups reduce by a factor...

An organization has 6000 GB of file system data with a daily change rate of 10%. Assume the first backup reduces by a factor of 3 (3x), daily incremental backups reduce by a factor...

As represented in the exhibit, which metric is the Local-Comp Factor reporting in the filesys show compression output?

Which pieces of information are necessary to determine the capacity requirements of an EMC Data Domain system?

What is the default behavior for messages log files in an EMC Data Domain system?