DES-DD23 Online Practice Questions and Answers

Refer to the exhibit.

To which shelf and port should SAS HBA slot 1 port B be connected?

A. Shelf 04 BH

B. Shelf 01 BH

C. Shelf 04 BE

D. Shelf 01 BE

When using CIFS from a PowerProtect DD system, what should be changed on a Windows machine?

A. SMBTimeout to 7200 seconds

B. CIFSTimeout to 3600 seconds

C. SESSTIMEOUT to 7200 seconds

D. SESSTIMEOUT to 3600 seconds

A PowerProtect DD appliance has been installed at a company's location for several months and has reached a steady state. As a best practice, at what percentage of disk utilization should action be taken?

A. 60%

B. 70%

C. 80%

D. 95%

Backup administrators have noticed slow backups on the AIX environment.

To fix the issue, what should the set large_send be for each NIC, and what should the NFS option be set to?

A. no and nfs_rfc1323=0

B. yes and nfs_rfc1323=0

C. no and nfs_rfc1323=1

D. yes and nfs_rfc1323=1

What can be used to monitor system utilization?

A. Health tab in the System Manager GUI

B. system show performance command

C. Alert Messages

D. system status command

Which component executes the read/write requests in a backup environment consisting of a PowerProtect DD appliance and IBM Spectrum Protect?

A. Spectrum Protect Server

B. Media Server

C. Media Agent

D. Master Server

An administrator recognizes poor network performance when using CIFS shares from a PowerProtect DD system. The network link utilization is under 100%.

What is the most likely cause of this issue?

A. TCP window size too small

B. TCP timeout too small

C. TCP timeout too large

D. TCP window size too large

A PowerProtect DD appliance with two expansion shelves is being installed in a customer-provided rack.

When cabling the controller to the shelves, what is connected to the host port on the last shelf in the chain?

A. Expansion port of the upstream shelf

B. Host port of the controller

C. Expansion port of the controller

D. Host port of the downstream shelf

Which command is used to start the initial CLI configuration wizard?

A. config setup

B. install config

C. config

D. setup

An organization uses tape libraries in their current backup infrastructure. They have purchased a PowerProtect DD system and plan to use VTL to move from physical tape. What is a consideration when configuring the tape size?

A. Use multiple drives to write multiple streams

B. Set retention periods for as long as possible

C. Target multiple drives to write single stream

D. Use larger tapes for multiple smaller datasets

An engineer is configuring a PowerProtect DD system for VTL using Fibre Channel. How should the zones be configured?

A. Hard zones

B. Single initiator, multi target

C. Single initiator, single target

D. Soft zones

An administrator monitors the performance statistics of a PowerProtect DD appliance. Low disk-write rates are shown, and the network inbound traffic is high. What is the most likely cause of this behavior?

A. NVRAM failure

B. Disk failure

C. Expired segments

D. Known segments

Which command is used to check if NFS is enabled?

A. nfs enable

B. nfs status

C. nfs show clients

D. system show

What is a requirement to use the PowerProtect DD HA feature?

A. Each head unit requires its own FS25 shelf

B. Head units and nodes require an active/active configuration

C. A single set of shared storage

D. Dual set of shared storage configuration

What rule must be followed during an upgrade procedure with the FS25 expansion shelf?

A. FS25 shelf is cabled on a separate private chain

B. For high performance, the connections from a controller to FS25 shelves must be over FC cables

C. FS25 shelf must be on the same chain with DS60

D. If ES40 SAS shelves are on the same chain as an FS25, the maximum number of shelves on that chain is five