Exam Code: 300-320 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Designing Cisco Network Service Architectures
Certification Provider: Cisco
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2021 Jun 300-320 Study Guide Questions:

Q171. The network designer needs to consider the number of multicast applications and sources in the network to provide the most robust network possible. Which of the following is a consideration the designer must also address? 

A. The IGPs should utilize authentication to avoid being the most vulnerable component 

B. With SSM source or receiver attacks are not possible 

C. With Shared Trees access control is always applied at the RP 

D. Limit the rate of Register messages to the RP to prevent specific hosts from being attacked on a PIM-SM network 

Answer: B 

Q172. An organization is deploying a new load balancing environment to support sensitive applications. The security requirements include discrete IP segments used for VIPs and for the application hosts. What load balancer mode meets the requirements? 

A. router 

B. bridge 

C. transparent 

D. pass-through 

Answer: A 

Q173. What is the next action taken by the Cisco NAC Appliance after it identifies a vulnerability on a client device? 

A. denies the client network resource access 

B. repairs the effected devices 

C. generates a Syslog message 

D. permits the client but limits to guest access 

Answer: B 

300-320  practice test

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Q174. What Nexus technology avoids blocking links between the access layer and the aggregation layer in a data center network design? 

A. FCoE 


C. vPC 


Answer: C 

Q175. Which three Layer 2 access designs have all of their uplinks in an active state? (Choose three.) 

A. Flex Links 

B. loop-free U 

C. looped square 

D. looped triangle 

E. loop-free inverted U 

Answer: B,C,E 




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Q177. A network engineer must provide 40mb connections from the data center to the corporate office and two remote offices. What WAN connectivity option will outsource the routing in cooperation with the service provider? 

A. Ethernet Private Line 

B. Ethernet Multipoint Service 



Answer: C 

Q178. Which three major points are important for network virtualization to separate logical networks on a shared physical infrastructure? (Choose three.) 


B. data plane 

C. control plane 

D. VPNs 


F. management plane 

Answer: B,C,F 

Q179. Refer to the exhibit. A customer requires a web application implementation, but the web server has communication only to the application server and users, and the database server has communication only to the application server. What firewall design is the best fit for this scenario? 

A. transparent mode with the servers on the same subnet 

B. routed mode with three security zones 

C. transparent mode with three security zones 

D. routed mode with two security zones 

Answer: B 

Q180. 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: B