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Q11. Which two of the following are benefits of using a modular approach to network design? (Choose two.)
A. improves flexibility
B. facilitates implementation
C. lowers implementation costs
D. improves customer participation in the design process
Answer: A,B
Q12. Refer to the exhibit.
Which two statements correctly identify the layers of the Enterprise Campus module? (Choose two.)
A. A is the Data Center Module and C is the Campus Core layer.
B. A is the Data Center Module and D is the Building Access layer.
C. B is the Campus Core layer and C is the Building Distribution layer.
D. B is the Building Distribution layer and C is the Campus Core layer.
E. A is the Internet Connectivity layer and B is the Campus Core layer.
F. B is the Building Distribution layer and D is the Building Access layer.
Answer: B,C
Explanation: Module characteristics show to which category the blocks belong to. Link:
http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/campover.html#wp708780
Q13. Which IP telephony component supports VoIP, PoE, and QoS?
A. client endpoints
B. voice-enabled infrastructure
C. Cisco Unified Communications Manager
D. Cisco Unified Contact Center
Answer: B
Q14. What three design requirements are key to designing a campus core? (Choose three.)
A. low latency
B. access control
C. traffic filtering
D. high speed
E. redundant links
F. QoS tagging
Answer: A,D,E
Q15. In the enterprise data center, which are the three main components? (Choose three.)
A. Network Infrastructure
B. Interactive services
C. Data Center Management
D. Internet services
E. WAN services
F. VPN and remote access
Answer: A,B,C
Q16. Which three technologies are recommended to be used for WAN connectivity in today's Enterprise Edge designs? (Choose three.)
A. DWDM
B. Metro Ethernet
C. Frame Relay
D. MPLS VPN
E. ISDN
F. DSL
G. Wireless
Answer: A,B,D
Explanation:
There is some discussion about whether ISDN not DWDM should be the answer but it does say TODAYS network
Q17. Multicast has been enabled and configured in the Enterprise, and PIM Sparse-mode has been enabled on all VLANs. What feature is required to stop multicast traffic from being broadcasted on the access layer switches?
A. IGMP snooping
B. Multicast boundary filter
C. PIM dense-mode
D. Dynamic ARP inspection
Answer: A
Q18. OSPF will be used as the IGP within a campus network. Which two things should you consider before deployment? (Choose two.)
A. All areas need to connect back to area 0.
B. The OSPF process number on each router should match.
C. NSSA areas should be used when an area cannot connect directly to area 0.
D. Stub areas should be connected together using virtual links.
E. ECMP may cause undesired results depending on the environment.
Answer: A,E
Q19. Which IGP provides the fastest convergence by default?
A. EIGRP
B. OSPF
C. IS-IS
D. RSTP
E. BGP
Answer: A
Q20. What is the acceptable amount of one-way network delay for voice and video applications?
A. 300 bytes
B. 1 sec C. 150 ms
D. 500 ms
Answer: C
Explanation:
Delay Components in VoIP Networks The ITU's G.I 14 recommendation specifics that the one-way delay between endpoints should not exceed 150 ms to be acceptable, commercial voice quality. In private networks, somewhat longer delays might be acceptable for economic reasons. The ITU G.114 recommendation specifics that 151-ms to 400-ms one-way delay might be acceptable provided that organizations are aware that the transmission time will affect the quality of user applications. One-way delays of above 400 ms are unacceptable for general network planning purposes.