Certidea 642-971 exam questions and answers

Cisco 642-971
Data Center Networking Infrastructure Design Specialist
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Question: 1
What advantage does InfiniBand have over Gigabit Ethernet in HPC envir onments?
A. lower latency
B. simpler cabling
C. longer distance support
D. more sophisticated traffic manage ment
Answer: A
Question: 2
Which data center network-arc h itecture change is a result of the adoption of blade and 1-RU
server technologies?
A. Layer 3 fault domains growing larger
B. Layer 2 fault domains growing larger
C. Layer 3 fault domains growing smaller
D. Layer 2 fault domains growing smaller
Answer: B
Question: 3
A very large blade-se rver deployment has high throughput requirements for both data and
storage networks. Which access layer option would you recommend?
A. blade server Ethernet switch with Cisco SFS 3000 Series Multifabric Switch
B. blade server Inf iniBand switch with Cisco SFS 3000 Series Multifabric Switch
C. blade server Ethernet switch that is connected to Cisco Catalyst 4948 top-of -rack switch
D. blade server Ethernet switch that is connected to Cisco Catalyst 6500 Series end-of -rack
switch
Answer: B
Question: 4
Ref er to the exhibit. Each letter (A-D) represe nts a model for placement of a def ault
gateway. Which model allows the maximum number of application and security servi ces?
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A. model A
B. model B
C. model C
D. model D
Answer: C
Question: 5
Which three of the following service modules can be deployed in redundant pairs with
active/active failov er? (Choose three.)
A. ACE
B. CSM
C. NAM
D. IDSM
E. FWSM
F. SSLSM
Answer: A, D, E
Question: 6
Refer to the exhibit. What do you need to conf igure to pre vent spanning-tree loops from
occurring between the two FWSMs?
A. FWSMs in transparent mode
B. ethertype ACLs to allow BPDUs
C. FWSMs in multiple-context mode
D. failover and state interf aces on the same VLAN
Answer: B
Question: 7
How is FCIP traffic marked with DSCP values?
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A. The Cisco MDS 9000 Series Multilayer Switch marks one DSCP value per FCIP tunnel.
B. The Cisco MDS 9000 Series Multilayer Switch marks two DSCP values per FCIP tunnel.
C. The aggregation layer Ethern et switch marks one DSCP value per FCIP tunnel.
D. The aggregat ion layer Ethernet switch marks two DSCP values per FCIP tunnel.
Answer: B
Question: 8
Which two security vulnerabi lities does the FWSM application inspection engine mitigate?
(Choose two.)
A. DoS attacks
B. DD oS attacks
C. SQL injection
D. cookie altering
E. web server worms
Answer: C, D
Question: 9
Your customer plans to deploy FWSM and IDSM modules in the aggr egation layer. Which
design should you avoi d?
A. Layer 3
B. Inf iniBand
C. Layer 2 loop-f ree
D. Layer 2 looped square
E. Layer 2 looped triangle
Answer: A
Question: 10
Ref er to the exhibit.
Your customer is filling server racks sequentially, filling one rack before beginning the next.
Which two access layer designs present challenges in this envir onment? (Choose two.)
A. Layer 3
B. Layer 2 loop-f ree U
C. Layer 2 looped square
D. Layer 2 looped triangle
E. Layer 2 loop-free inverted U
Answer: A, B
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