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

642-355 CSSDS
Cisco Storage Networking Solutions Design Specialist

Exam Number: 642-355
Associated Certifications: Data Center Storage Networking
Duration: 60 minutes (50-60 questions)
Available Languages: English
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Exam Description Exam Topics Recommended Training Additional Resources
Exam Description
The 642-355 Cisco Storage Networking Solutions Design Specialist (CSSDS) exam is associated with the Data Center Storage Networking Specialization. Candidates can prepare for this exam by taking the Designing Cisco Storage Network (DCSN) course. This exam tests a candidate’s knowledge of selecting and integrating Cisco storage products to design a highly scalable, efficient, high performing storage networking solution based on converged architecture. Cisco Storage Networking Design Specialist professionals understand how to utilize and employ the features and benefits of the Cisco MDS 9000 Series Multilayer Directors and Switches, Cisco MDS 9509 Director Switch, Cisco 9216 Fabric Switch, and Cisco MDS 9120 products to create a high availability storage network design.

Exam Topics
The following information provides general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes the guidelines below may change at any time without notice.

Perform a needs analysis that identifies the appropriate Storage Networking topology, protocols, and transport to meet customer’s requirements
Describe the benefits of implementing a Cisco collapsed core SAN network design.
Describe the evolution of SAN topology design.
Evaluate over-subscription ratio for a given design.
Determine if iSCSI is appropriate for design implementation.
Determine SAN Extension requirements for customer solution.
Evaluate deployment opportunities for MDS family.
Evaluate the customer’s applications requirements.
Evaluate the customer’s business continuance requirements.
Evaluate the customer’s backup/replication requirements.
Evaluate the customer’s high availability requirements.
Evaluate the customer’s SAN utilization and propose consolidation options.
Evaluate the customer’s Storage Virtualization implementation strategy.
Evaluate the customer’s Security requirements.

Identify the interoperability requirements of a customer’s SAN
Identify and document existing customer infrastructure.
Identify considerations that should be addressed when designing a heterogeneous fabric.

Design a solution that addresses a customer’s SAN requirements
Describe value added MDS features that address identified customer needs and requirements.
Determine the appropriate topology for a given implementation.
Select the appropriate protocols for design implementation.
Select appropriate collapsed core design given a set of customer requirements.
Select the appropriate design option given a set of customer requirements including applications such as database, mail-server, backup and replication.
Identify characteristics of customer’s host operating systems that could impact their SAN design.
Develop a capacity plan for implementing a Cisco SAN solution.
Identify SAN Extension topology, devices, and features appropriate for a SAN solution.
Propose alternative protocols, topologies, devices, and features that would improve customer solution (cost, performance, etc).
Design an appropriate Cisco management infrastructure.
Determine hardware configurations, power requirements, and environmental considerations to support SAN fabric design.
Design a backup and recovery solution.

Design appropriate IP configurations for a SAN solution
Describe the importance of using appropriate MTU size.
Determine requirements for IP routing.
Design appropriate VLANs for storage solutions.
Determine ACL requirements for storage solutions.

“Cisco Storage Networking Solutions Design Specialist (CSSDS)”, also known as 642-355 exam, is a Cisco certification.
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QUESTION 21:
Exhibit:

Your work as network administrator at Certkiller .com. You study the exhibit carefully. In
this scenario, the total bandwidth requirement is 1500 MBPS but there are 100 hosts that
each need 15MBPS of bandwidth. Which to statements are correct about the topologies
shown in the Exhibit? (Choose two.)
A. The Fibre Channel implementation would require two 32-port switching modules in
the Cisco MDS switches per fabric
B. The Fibre Channel implementation si the more cost-effective solution with high fan-in
ratios
C. If the iSCSI configuration has two IPS-8 Modules, it will not be oversubscribed
D. The Fibre Channel implementation will require 100 HBA ports
E. iSCSI is the more cost-effective solution with high fan-in ratios
Answer: C,E
QUESTION 22:
A government agency data center that is used for tax processing is located in an
earthquake fault zone. A backup data center, located 300 km away, is linked to the main
data center over an OC-3 connection. Which of the following provides the best solution
to extend the SAN for business continuance and for support of their IP Applications?
A. Dark fiber connectivity and use of synchronous replication over FC
B. iSCSI
C. FCIP and asynchronous replication
D. Synchronous replication using FCIP
Answer: C
QUESTION 23:
DRAG DROP

You work as a network administrator at Certkiller .com. Your boss, Mrs. Certkiller, is
interested in Cisco Value Added features. Match the features with the appropriate
potential issue it would most likely solve.
Answer:

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