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Exam : Cisco 642-355
Title : Cisco Storage Networking Solutions Design Specialist (CSSDS)


1. Select three advantages of using fabric-based storage virtualization instead of host-based virtualization. (Choose three.)
A. offers a single point of management
B. supports heterogeneous storage
C. does not require a host agent
D. insulates the hosts from storage changes
E. provides mirroring
Answer: ACD

2. Refer to the exhibit. Your customer has an existing SAN with eight edge switches and two core switches. In your detailed assessment, which metric will help you convince the customer to consider an alternative, more highly available topology?
A. SFP characteristics
B. total port count
C. cost of edge switch devices
D. total versus usable ports for end devices
Answer: D

3. A customer would like to add Cisco MDS switches to an existing Brocade environment with minimal disruption. The Brocade switches are using PID-0 mode. Which two features will enable the creation of a Cisco-Brocade heterogeneous fabric without restricting the feature set of either switch? (Choose two.)
A. interop mode 1
B. interop mode 2
C. interop mode 3
D. IVR
E. PortChannels
F. CWDM
Answer: BD

4. Which statement is true concerning the Cisco MDS switch when operating in native interop mode?
A. The MDS switch can interoperate with Non-MDS switches that are certified by SNIA.
B. The MDS switch can interoperate with Non-MDS switches that support "MDS Native" mode.
C. The MDS switch can interoperate with Non-MDS switches that properly adhere to Fibre Channel switch standards.
D. The MDS switch cannot interoperate with Non-MDS switches.
Answer: C

5. Which are two characteristics of the Cisco MDS Series fan modules? (Choose two.)
A. Supervisor modules shut down the fan modules when the air temperature is below a preset threshold.
B. If the Fan Status LED turns red, a fan has failed and the module must be replaced.
C. Fan modules monitor air temperature and shut down if the temperature exceeds a preset threshold.
D. Fan modules do not require the switch to be powered off in order to be replaced.
Answer: BD

6. Your customer is using an IPS-8 module in its data center to provide FCIP connectivity to 20 remote sites. It has encountered connectivity problems at four of the remote sites. After investigating, the customer's network administrator found that the IPS-8 is sending 2300-byte packets, but the receiving switches at the four remote sites do not support jumbo frames.
What should you do?
A. Disable packet shaping on the IPS-8
B. Reduce the minimum retransmit timeout
C. Disable jumbo frames on the IPS-8
D. Enable Path MTU discovery
Answer: D

7. Your customer has a number of data storage requirements:
servers are not responsible for volume management or data migration
storage is provisioned in real time
legacy and heterogeneous storage assets can be consolidated and fully utilized
data can be protected using simplified snapshot and replication techniques
data can be assigned to different classes easily
Which solution would meet these requirements?
A. VSANs
B. Wide-Area Application Services (WAAS)
C. fabric-based virtualization
D. LUN zoning
E. host-based virtualization
Answer: C

8. Which technology should be used to provide transparent low latency FC transport across a metropolitan area?
A. DWDM
B. FCIP
C. iSCSI
D. iFCP
Answer: A