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Designing Cisco Network Service Architectures Certification Exam

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November 21, 2024Last update

Cisco 300-320 Free Practice Questions

Q1. 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. 

Answer:

Q2. 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. 

Answer:

Q3. 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 

Q4. With respect to address summarization, which of the following statements concerning IPv4 and IPv6 is true? 

A. The potential size of the IPv6 address blocks suggests that address summarization favors IPv6 over IPv4. 

B. Role based addressing using wildcard masks to match multiple subnets is suitable for IPv4, but unsuitable for IPv6. 

C. In order to summarize, the number of subnets in the IPv4 address block should be a power of 2 while the number of subnets in the IPv6 address block should be a power of 64. 

D. WAN link addressing best supports summarization with a /126 subnet for IPv4 and a /31 for IPv6. 

Answer:

Q5. What are the two methods of ensuring that the RPF check passes? (Choose two.) 

A. implementing static mroutes 

B. implementing OSPF routing protocol 

C. implementing MBGP 

D. disabling the interface of the router back to the multicast source 

E. disabling BGP routing protocol 

Answer: A,C 

Q6. Refer to the exhibit. 

The Cisco Nexus 1000V in the VMware vSphere solution effectively creates an additional access layer in the virtualized data center network; which of the following 1000V characteristics can the designer take advantage of? 

A. Offloads the STP requirement from the external Access layer switches 

B. If upstream access switches do not support vPC or VSS the dual-homed ESX host traffic can still be distributed using virtual port channel host mode using subgroups automatically discovered through CDP 

C. Allows transit traffic to be forwarded through the ESX host between VMNICs 

D. Can be divided into multiple virtual device contexts for service integration, enhanced 

security, administrative boundaries, and flexibility of deployment 

Answer:

Q7. Which STP enhancement can be configured on Layer 2 ports between distribution layer switches? 

A. LoopGuard 

B. PortFast 

C. UplinkFast 

D. RootGuard 

Answer:

Q8. Which feature supports multiple routing tables with overlapping networks on a single device? 

A. VRF 

B. Metro Ethernet 

C. RSTP 

D. VSS 

Answer:

Q9. In what situation must spanning-tree be implemented? 

A. when first hop redundancy protocol exists with redundant Layer 2 links between distribution switches 

B. when a VLAN spans access layer switches to support business applications 

C. when trunks need to extend multiple VLANs across access switches 

D. when it is necessary to speed up network convergence in case of link failure 

Answer:

Q10. What is the recommended subnet between two sites that have a point-to-point connection to conserve IP addresses? 

A. 255.255.255.0 

B. 255.255.252.0 

C. 255.255.255.252 

D. 255.255.255.240 

Answer:

Q11. To support the enterprise high-availability requirements, which workgroup switch technology can be used to interconnect multiple switches into a single logical unit? 

A. StackWise 

B. EtherChannel 

C. VSS 

D. vPC 

E. Flex Links 

Answer: A

Q12. Refer to the exhibit. 

The network engineer wants to ensure that receiver A does not receive traffic from the video conference. 

For multicast traffic, where must the filtering be placed to fulfill that requirement? 

A. R1 

B. Video Conference 

C. A 

D. S1 

E. R2 

Answer:

Q13. Which two network management capabilities that are embedded in Cisco IOS Software will baseline existing application traffic? (Choose two.) 

A. Syslog 

B. AutoQoS 

C. NetFlow 

D. SNMP 

E. NBAR 

F. Logging 

Answer: C,E 

Q14. Which unique EIGRP feature allows for faster Layer 3 convergence? 

A. fast EIGRP timers 

B. feasible successors 

C. hybrid routing protocol 

D. Cisco proprietary protocol 

Answer:

Q15. Which QoS mechanism uses PHBs? 

A. DiffServ 

B. IntServ 

C. CoS 

D. ToS 

Answer:

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