300-320 Exam - Designing Cisco Network Service Architectures

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Q1. Which routing protocol provides the fastest convergence and greatest flexibility within a campus environment? 

A. OSPF 

B. IS-IS 

C. BGP 

D. EIGRP 

Answer:

Q2. Which Cisco feature can be run on a Cisco router that terminates a WAN connection, to gather and provide WAN circuit information that helps switchover to dynamically back up the WAN circuit? 

A. Cisco Express Forwarding 

B. IP SLA 

C. passive interface 

D. traffic shaping 

Answer:

Q3. A well-designed IP addressing scheme supporting role-based functions within the subnet will result in the most efficient use of which technology? 

A. Layer 3 switching in the core 

B. Network Admission Control (NAC) 

C. IP telephony (voice and video) services 

D. ACLs 

Answer:

Q4. The direction of the flow of multicast traffic is based on which protocol? 

A. PIM 

B. IGMP 

C. underlying IGP 

D. MSDP 

Answer:

Q5. Which protocol is best when there are circuit connections with two different ISPs in a multihoming scenario? 

A. VRRP 

B. BGP 

C. IPsec 

D. SSL 

Answer:

Q6. The requirement for high availability within the Data Center network may cause the designer to consider which one of the following solutions? 

A. Construct a hierarchical network design using EtherChannel between a server and two VDCs from the same physical switch 

B. Utilize Cisco NSF with SSO to provide intrachassis SSO at Layers 2 to 4 

C. Define the Data Center as an OSPF NSSA area, advertising a default route into the DC and summarizing the routes out of the NSSA to the Campus Core 

D. Implement network services for the Data Center as a separate services layer using an active/active model that is more predictable in failure conditions 

Answer:

Q7. In base e-Commerce module designs, where should firewall perimeters be placed? 

A. core layer 

B. Internet boundary 

C. aggregation layer 

D. aggregation and core layers 

E. access and aggregation layers 

Answer:

Q8. Private lines make use of which connection type based on cell switching? 

A. ATM 

B. ISP MPLS VPN 

C. VTI 

D. VPLS 

Answer:

Q9. Which STP enhancement can be configured on Layer 2 ports between distribution layer switches? 

A. LoopGuard 

B. PortFast 

C. UplinkFast 

D. RootGuard 

Answer:

Q10. A network engineer must create a Layer 2 switch block design that has deterministic convergence and is loop-free at Layer 2. Which two switch block elements are needed to meet the requirements? (Choose two.) 

A. Layer 3 link between distribution switches 

B. HSRP with interface tracking on uplinks to core switches 

C. RPVST with equal bridge priority on distribution switches 

D. VLANs that do not span access switches 

E. Layer 2 link between distribution switches 

Answer: A,D