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New Cisco 300-320 Exam Dumps Collection (Question 12 - Question 21)

New Questions 12

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

New Questions 13

Which two benefits are achieved if a network is designed properly with a structured addressing scheme? (Choose two.)

A. efficient ACLs

B. improved redundancy

C. hardened security

D. easier troubleshooting

E. added resiliency

Answer: A,D

New Questions 14

Which three options are basic design principles of the Cisco Nexus 7000 Series for data center virtualization? (Choose three.)

A. easy management

B. infrastructure scalability

C. cost minimization

D. upgrade of technology

E. transport flexibility

F. operational continuity

Answer: B,E,F

New Questions 15

Which architecture provides a way to deliver end-to-end QoS as required by real-time voice and video business

applications?

A. IntServ

B. DiffServ

C. LLQ

D. ToS

E. DSCP

Answer: A

Explanation:

DiffServ is known as "Hop-by-Hop" and not "End-to-End"

New Questions 16

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

A. VRF

B. Cisco virtual router

C. Instanced virtuer router

D. IS-IS

Answer: A

New Questions 17

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

New Questions 18

A campus network in a switch block design requires redundant distribution switches, load sharing across uplinks, a loop-free topology, and only one gateway IP address per VLAN. Which switching technology meets all of the requirements?

A. HSRP

B. VSS

C. Spanning Tree Protocol

D. EtherChannel

Answer: B

New Questions 19

A company's virtualization team wants to transfer control of network switching and policy management for VMware virtual servers to the networking team. What Cisco network virtualization solution should be implemented?

A. Unified Computing System

B. Nexus distributed virtual switch

C. virtual network agent

D. Nexus unified fabric switch

Answer: B

Explanation: Nexus 1000v

New Questions 20

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 thedesigner 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: B

Explanation:

"Virtual Port Channel Host Mode Virtual Port Channel Host Mode (vPC-HM), shown in Figure 5-33 , allows a port channel from the Cisco Nexus 1000V to be terminated on two separate upstream switches, even if these switches do not support a clustering technology, such as vPC or VSS."

New Questions 21

A network engineer has implemented a looped triangle switch block design. What element must be included in the design?

A. first hop redundancy protocol

B. Layer 2 links between access switches

C. single uplinks between access and distribution switches

D. VLANs that span access switches

E. Layer 3 links between distribution switches

Answer: A

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