[2021-New] Cisco 300-320 Dumps With Update Exam Questions (5-14)

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New Cisco 300-320 Exam Dumps Collection (Question 5 - Question 14)

Q5. An HSRP design requirement states that preemption must be enabled for the active switch, which is a Cisco 4507R. Assume a boot time of 300 seconds. Which setting of the preemption delay timer minimizes the loss of traffic?

A. 50 seconds

B. 100 seconds

C. 150 seconds

D. 200 seconds

Answer: D

Explanation: https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/HA_campus_DG/ hacampusdg.html#wp1107923

"The recommended best practice is to measure the system boot time, and set the HSRP preempt delay

statement to 50 percent greater than this value. This ensures that the HSRP primary distribution node has

established full connectivity to all parts of the network before HSRP preemption is allowed to occur"-> We can't choose 450 secondes so we take the higher delay available..

Q6. A customer has seven sites, three of which process a large amount of traffic among them. The customer plans to grow the number of sites in the future. Which is the most appropriate design topology?

A. full mesh

B. peer-to-peer

C. partial mesh

D. hub and spoke

Answer: C

Q7. Which statement is correct regarding NBAR and NetFlow?

A. NetFlow uses five key fields for the flow.

B. NBAR examines data in Layers 3 and 4.

C. NetFlow examines data in Layers 3 and 4.

D. NBAR examines data in Layers 2 through 4.

E. NetFlow examines data in Layers 2 through 4.

Answer: C

Explanation:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/netflow/configuration/12-4/nf-12-4-book/ios-netflowov.html#GUID-D670C93B-E93A-419A-968D-E5A953788418

Specifically, a flow is defined by the combination of the following seven key fields: Source IP address

Destination IP address

Source port number Destination port number Layer 3 protocol type Type of service (ToS) Input logical interface

Q8. Which unique characteristics of the Data Center Aggregation layer must be considered by an Enterprise Campus designer?

A. Layer 3 routing between the Access and Aggregation layers facilitates the ability to span VLANs across multiple access switches, which is a requirement for many server virtualization and clustering technologies.

B. "East-west" server-to-server traffic can travel between aggregation modules by way of the core, but backup and replication traffic typically remains within an aggregation module.

C. Load balancing, firewall services, and other network services are commonly integrated by the use of service modules that are inserted in the aggregation switches.

D. Virtualization tools allow a cost effective approach for redundancy in the network design by using two or four VDCs from the same physical switch.

Answer: C

Q9. Which protocol is used in an in-band network and why?

A. UDP, because it is connectionless

B. SSH, because the username and password are encrypted

C. Telnet, because the username and password are sent in clear

D. MSDP, because it uses TCP as its transport protocol

Answer: B

Q10. Which option maximizes EIGRP scalability?

A. route redistribution

B. route redundancy

C. route filtering

D. route summarization

Answer: D

Q11. What Nexus technology avoids blocking links between the access layer and the aggregation layer in a data center network design?

A. FCoE

B. LACP

C. vPC

D. FEX

Answer: C

Q12. What is an advantage of having an out-of-band management?

A. It is less expensive to have an out-of-band management.

B. Network devices can still be managed, even in case of network outage.

C. There is no separation between the production network and the management network.

D. SSH protocol must be used to manage network devices.

Answer: B

Q13. What is the correct state between two BGP peers that are neighbors?

A. active

B. operational

C. established

D. up

Answer: C

Q14. Which of these is least important when determining how many users a NAS can support?

A. bandwidth

B. number of plug-ins per scan

C. total number of network devices

D. number of checks in each posture assessment

Answer: A

Explanation:

NAS = Cisco NAC Appliance Server

(not Network-Attached Storage as I first thought) https://www.safaribooksonline.com/library/view/foundation-learning- guide/9780132652933/ch08.html

"Cisco NAS Scaling

There are three levels of Cisco NAM for supporting Cisco NAC Appliance solutions:

u2022 Cisco NAC Appliance Lite Manager manages up to 3 Cisco NAS devices, supporting 100, 250, or 500 users per server.

u2022 Cisco NAC Appliance Standard Manager manages up to 20 Cisco NAS devices,

supporting from 1500 to

5000 users per (NAS) depending on which model is deployed.

u2022 Cisco NAC Appliance Super Manager manages up to 40 Cisco NAS devices, supporting from 1500 to 5000

users per (NAS) depending on which model is deployed.

The number of users supported on a server is a measure of concurrent users that have been scanned for

posture compliance, not network devices such as printers or IP phones.

The number of users supported per server is influenced by many factors that consume CPU and server

resources, such as the following:

u2022 The number of new user authentications per second

u2022 The number of posture assessments per second

u2022 How many checks are in each posture assessment

u2022 The number of agentless network scans per second

u2022 The number of plug-ins per scan

u2022 Rescan timer intervals

u2022 Per-role and total online timer intervals

u2022 Bandwidth controls

u2022 Filters and access controls Note

Interface bandwidth is the least important calculation for determining how many users a Cisco NAS

can support."

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