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New Cisco 300-320 Exam Dumps Collection (Question 10 - Question 19)

Question No: 10

Which type of connectivity is required for VPLS?

A. Full mesh

B. Partial mesh

C. Star

D. Bus

E. Ring

Answer: A

Question No: 11

Which two VPN solutions extend the routing capabilities of basic IPsec VPNs? (Choose two.)

A. GRE

B. NVI

C. DES

D. VTI

E. AES

Answer: A,D

Question No: 12

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) service

D. ACLs

Answer: D

Question No: 13

Which two design concerns must be addressed when designing a multicast implementation? (Choose two.)

A. only the low-order 23 bits of the MAC address are used to map IP addresses

B. only the low-order 24 bits of the MAC address are used to map IP addresses

C. only the high-order 23 bits of the MAC address are used to map IP addresses

D. only the low-order 23 bits of the IP address are used to map MAC addresses

E. the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses

F. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses

Answer: D,F

Explanation: Ethernet & FDDI Multicast Addresses

- The low order bit (0x01) in the first octet indicates that this packet is a Layer 2 multicast packet. Furthermore, the u201c0x01005eu201d prefix has been reserved for use in mapping L3 IP multicast addresses into L2 MAC addresses.

- When mapping L3 to L2 addresses, the low order 23 bits of the L3 IP multicast address are mapped into the low order 23 bits of the IEEE MAC address. Notice that this results in 5 bits of information being lost. https://www.cisco.com/networkers/nw00/pres/3200/3200_c1_Mod2_rev1.pdf

Question No: 14

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

Question No: 15

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

Question No: 16

Which three options are features of IP SLAs? (Choose three.)

A. enables verification of service guarantees

B. dynamically adjusts QoS parameters

C. validates network performance and metrics

D. initiates failover for saturated links

E. proactively identifies network related issues

Answer: A,C,E

Question No: 17

Which IPv6 transition model should be utilized when two or more independent transition mechanisms are required?

A. tunneling

B. dual stack

C. service block

D. hybrid

E. manual

Answer: D

Question No: 18

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."

Question No: 19

Which of the following is true concerning best design practices at the switched Access layer of the traditional layer2 Enterprise Campus Network?

A. Cisco NSF with SSO and redundant supervisors has the most impact on the campus in the Access layer

B. Provide host-level redundancy by connecting each end device to 2 separate Access switches

C. Offer default gateway redundancy by using dual connections from Access switches to redundant

Distribution layer switches using a FHRP

D. Include a link between two Access switches to support summarization of routing information from the

Access to the Distribution layer

Answer: A

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