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642-961 : Cisco Data Center Networking Infrastructure Solutions design Last Updated Friday, July 25, 2008 with 64 Questions
Cisco Data Center Networking Infrastructure Solutions design
Exam Number: 642-961 Exam
Associated Certifications: Cisco Data Center Networking Infrastructure Solutions design
Duration: 120 Q&As
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QUESTION 1
Certkiller .com wants to use distinct security policies for different departments. What
must be configured?
A. individual security level for each department
B. separate ACL group for each department
C. distinct VLAN for each department
D. unique firewall context for each department
Answer: D
QUESTION 2
Exhibit:
You work as a network administrator at Certkiller .com. You study the exhibit carefully.
Certkiller A, Certkiller B, C, and Certkiller 4 each represents a model for placement of a
default gateway. Which model allows the maximum number of application and security
services?
A. model Certkiller B
B. model C
C. model Certkiller A
D. model Certkiller D
Answer: B
QUESTION 3
Which of the following attack types should be mitigated in the data center core layer?
A. IP spoofing
B. MAC address spoofing
C. port scans
D. DDoS attacks
Answer: D
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QUESTION 4
Exhibit:
You work as a network administrator at Certkiller .com. You study the exhibit carefully.
A failure occurs on one of the access layer uplinks. Which Layer 2 topology can cause a
break in connectivity between the FWSMs?
A. looped triangle
B. loop-free inverted U
C. loop-free U
D. looped square
Answer: C
QUESTION 5
Which type of HPC application requires low latency?
A. financial analytics
B. seismic and geophysical modeling
C. digital image rendering
D. finite element analysis
Answer: D
QUESTION 6
Which statement best describes the data center core layer?
A. provides a resilient Layer 2 routed fabric
B. load balances traffic between the core and aggregation layers
C. is typically merged with the campus core layer
D. connects to the campus aggregation layer
Answer: B
QUESTION 7
Which data center network-architecture change is a result of the adoption of blade and
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1-RU server technologies?
A. Layer 3 fault domains growing smaller
B. Layer 2 fault domains growing larger
C. Layer 2 fault domains growing smaller
D. Layer 3 fault domains growing larger
Answer: B
QUESTION 8
What advantage does InfiniBand have over Gigabit Ethernet in HPC environments?
A. simpler cabling
B. longer distance support
C. more sophisticated traffic management
D. lower latency
Answer: D
QUESTION 9
Exhibit:
You work as a network administrator at Certkiller .com. You study the exhibit carefully.
Where is Layer 2 adjacency required?
A. server-to-server only
B. aggregation-to-access only
C. aggregation-to-access and access-to-server
D. access-to-server only
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Answer: D
QUESTION 10
According to the Cisco Network Foundation Protection model, which security feature is
recommended for the data center core layer?
A. prefix filtering
B. Dynamic ARP Inspection
C. traffic rate limiting
D. control plane protection
Answer: D
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