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Cisco Data Center Networking Infrastructure Solutions design : 642-961 Exam

642-961 CDCNID
Cisco Data Center Networking Infrastructure Design

Exam Number: 642-961
Associated Certifications: Data Center Switching Network Infrastructure
Duration: 75 minutes (60 questions)
Available Languages: English
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Exam Description Introduction Exam Topics Recommended Training Additional Resources
Exam Description Introduction
The 642-961 CDCNID Cisco Data Center Networking Infrastructure Design exam is the exam associated with the Data Center Design Specialist. Candidates can prepare for this exam by taking the CDCNID Cisco Data Center Networking Infrastructure Design v.1.0 course. This exam indicates a professional knowledge of designing solutions within the Cisco Data Center networking infrastructure.

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.

Describe the products and technologies used with Data Center Network Infrastructure
Describe the data center network architecture
Describe routing protocols used in a data center
Describe the use of Spanning Tree in a data center environment
Describe the Catalyst 6500 data center product set
Describe the Catalyst 4948
Describe Ethernet blade switches
Describe server fabric switches
Describe data center server models
Describe security components for data center infrastructure
Describe how storage protocols impact the design of an IP network
Describe the value proposition of the Cisco data center network architecture

Design the core layer of a data center infrastructure
Describe the data center core layer
Select appropriate platforms and modules in the data center core layer
Design a core layer to meet customer scalability, availability, and performance requirements
Design a core layer to meet customer security requirements
Design for traffic flows in the core

Design the aggregation layer of a data center infrastructure
Describe the data center aggregation layer
Select appropriate platforms and modules in the data center aggregation layer
Design an aggregation layer to meet customer scalability, availability, and performance requirements
Design for traffic flows in the aggregation layer
Design service module functionality into the aggregation layer

Design the access layer of a data center infrastructure
Describe the data center access layer
Select appropriate platforms and modules in the data center access layer
Design an access layer to meet customer scalability, availability, and performance requirements
Design an access layer to meet customer security requirements
Design for traffic flows in the access layer

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QUESTION 16
Exhibit:
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You work as a network administrator at PassGuide .com. You study the exhibit carefully.
A data center network is configured as follows:
ACE modules
active/active failover pair
core-to-aggregation traffic load balanced
load balancing via Layer 3 source-destination IP address hashing
Which statement represents the best advice?
A. The design is correct as shown.
B. The design should use RHI to route core-to-aggregation traffic.
C. The design should use Layer 4 port-based load balancing for core-to-aggregation
traffic.
D. The design should use Layer 2 load balancing for core-to-aggregation traffic.
Answer: B
QUESTION 17
Which recommendation applies to the aggregation layer?
A. Configure OSPF in the data center as a stub, totally stubby, or NSSA area.
B. Provide the default gateway at the FWSM via HSRP whenever possible.
C. Use Layer 2 links to the core.
D. Run OSPF on all VLAN interfaces.
Answer: A
QUESTION 18
Which statement is correct about Cisco Catalyst 6500 E-Series Switches?
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A. They require different Cisco IOS code trains than older Catalyst 6500 chassis.
B. They support all existing supervisors, line cards, switch fabrics, and software releases.
C. All their FRUs are compatible with older Catalyst 6500 chassis.
D. They do not support CEF720 line cards.
Answer: B
QUESTION 19
Which statement describes an IDSM module operating in inline rather than promiscuous
mode?
A. higher latency
B. higher throughput
C. lower latency
D. lower latency and higher throughput
E. lower throughput
F. higher latency and lower throughput
Answer: A
QUESTION 20
Which statement best describes two-tier data center networks?
A. more frequent switch upgrades
B. better fault isolation
C. fewer links
D. simplified routing-protocol peering
Answer: A