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Vendor: Cisco
Certifications: CCDP
Exam Name: Designing Cisco Network Service Architectures
Exam Code: 300-320
Total Questions: 389 Q&As
QUESTION 1
Distinct, physical redundancy within a network layer is a key characteristic that contributes to the high availability of the hierarchical network design. Which of the following is not an examples of this model?
A. SAN extension with dual fabrics such as a yellow VSAN and a blue VSAN utilized via multipath software
B. Redundant power supplies and hot-swappable fan trays in Aggregate switches
C. A single SAN fabric with redundant uplinks and switches
D. Servers using network adapter teaming software connected to dual-attached access switches
Correct Answer: C
QUESTION 2
A network engineer must provide 40mb connections from the data center to the corporate office and two remote offices. 300-320 dumps What WAN connectivity option will outsource the routing in cooperation with the service provider?
A. Ethernet Private Line
B. Ethernet Multipoint Service
C. MPLS VPN
D. VPLS
Correct Answer: C
QUESTION 3
Which of the following facts must be considered when designing for IP telephony within an Enterprise Campus network?
A. Because the IP phone is a three-port switch, IP telephony extends the network edge, impacting the Distribution layer.
B. Video and voice are alike in being bursty and bandwidth intensive, and thus impose requirements to be lossless, and have minimized delay and jitter.
C. IP phones have no voice and data VLAN separation, so security policies must be based on upper layer traffic characteristics.
D. Though multi-VLAN access ports are set to dot1q and carry more than two VLANs they are not trunk ports.
Correct Answer: D
QUESTION 4
Which protocol should be configured if a network administrator wants to configure multiple physical gateways to participate simultaneously in packet forwarding?
A. HSRP
B. VRRP
C. GLBP
D. VTP
Correct Answer: C
QUESTION 5
Which two design concerns must be addressed when designing a multicast implementation? (Choose two.)
A. only the low-order 23 bits of the MAC address are used to map IP addresses
B. only the low-order 24 bits of the MAC address are used to map IP addresses
C. only the high-order 23 bits of the MAC address are used to map IP addresses
D. only the low-order 23 bits of the IP address are used to map MAC addresses
E. the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses
F. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses
Correct Answer: A,F
QUESTION 6
Which practice is recommended when designing scalable OSPF networks?
A. Maximize the number of routers in an area.
B. Minimize the number of ABRs.
C. Minimize the number of areas supported by an ABR.
D. Maximize the number of router adjacencies.
Correct Answer: C
QUESTION 7
Two recently merged companies are using EIGRP and RIP. 300-320 dumps Which two strategies can facilitate a smooth migration? (Choose two.)
A. Create an OSPF instance between EIGRP and RIP routing domains.
B. Redistribute routing information between the RIP and EIGRP protocols.
C. Add EIGRP and then remove RIP on the acquired company network.
D. Use the EIGRP administrative distance to migrate one site at a time.
E. Use static routes in place of dynamic routing between companies.
Correct Answer: B,C
QUESTION 8
Which OSPF option can you configure to connect two parts of a partitioned backbone through a nonbackbone area?
A. route summarization
B. a virtual link
C. an NSSA
D. a static OSPF neighbor
Correct Answer: B
QUESTION 9
What is an advantage of using the vPC feature in a data center environment?
A. VSS is a requirement.
B. Multiple instances of control plane are formed.
C. The control plane and management plane remain separate.
D. Cisco FabricPath technology does not have to be configured.
Correct Answer: C
QUESTION 10
Which of the following is most accurate with respect to designing high availability within the Enterprise Campus network? 300-320 dumps
A. High availability at and between the Distribution and Access layers is as simple as redundant switches and redundant Layer 3 connections
B. Non-deterministic traffic patterns require a highly available modular topology design
C. Distribution layer high availability design includes redundant switches and Layer 3 equal-cost load sharing connections to the switched Access and routed Core layers, with a Layer 3 link between the Distribution switches to support summarization of routing information from the Distribution to the Core
D. Default gateway redundancy allows for the failure of a redundant Distribution switch without affecting endpoint connectivity
Correct Answer: D
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