300-320 Exam - Designing Cisco Network Service Architectures

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Q1. When is a first-hop redundancy protocol needed in the distribution layer? 

A. when the design implements Layer 2 between the access and distribution blocks 

B. when multiple vendor devices need to be supported 

C. when preempt tuning of the default gateway is needed 

D. when a robust method of backing up the default gateway is needed 

E. when the design implements Layer 2 between the access switch and the distribution blocks 

Answer:

Q2. Which two design recommendations are most appropriate when OSPF is the data center 

core routing protocol? (Choose two.) 

A. Never use passive interfaces. 

B. Use NSSA areas from the core down. 

C. Use totally stub areas to stop type 3 LSAs. 

D. Use the lowest Ethernet interface IP address as the router ID. 

E. Manipulate the reference bandwidth. 

Answer: B,E 

Q3. Which option does the FabricPath technology use to create loop-free Layer 2 networks? 

A. STP 

B. TTL 

C. fabric tags 

D. FSTP 

Answer:

Q4. Which three options are the three layers of the Cisco design in the data center architecture? (Choose three.) 

A. core layer 

B. distribution layer 

C. service layer 

D. aggregation layer 

E. Layer 2 domain sizing 

F. access layer 

Answer: A,D,F 

Q5. What three benefits exist when utilizing Cisco Nexus technology for implementing a unified fabric design? (Choose three.) 

A. reduced cabling 

B. fewer adapters 

C. consolidated switching 

D. increased bandwidth 

E. enhanced redundancy 

F. improved convergence 

Answer: A,B,C 

Q6. Which of the following is a result when designing multiple EIGRP autonomous systems within the Enterprise Campus network? 

A. Improves scalability by dividing the network using summary routes at AS boundaries 

B. Decreases complexity since EIGRP redistribution is automatically handled in the background 

C. Reduces the volume of EIGRP queries by limiting them to one EIGRP AS 

D. Scaling is improved when a unique AS is run at the Access, Distribution, and Core layers of the network 

Answer:

Q7. Which technology allows multiple instances of a routing table to coexist on the same router simultaneously? 

A. VRF 

B. Cisco virtual router 

C. instanced virtual router 

D. IS-IS 

Answer:

Q8. Which type of connectivity is required for VPLS? 

A. full mesh 

B. partial mesh 

C. star 

D. bus 

E. ring 

Answer:

Q9. What two features are inherent advantages of MPLS VPN services? (Choose two.) 

A. service providers can provide additional services 

B. virtual private networks segment traffic and ensure privacy 

C. easier to troubleshoot than Layer 2 WAN technologies 

D. faster data transfer speeds at lower costs 

E. functions without Cisco Express Forwarding 

Answer: A,B 

Q10. Which type of application traffic typically requires prioritization across networks and may use a DSCP value of 34 (AF41)? 

A. voice 

B. interactive video 

C. call signaling 

D. routing 

E. streaming video 

F. network management 

Answer: