Get all latest (August) Cisco 642-874 Actual Test 81-90

Ensurepass

 

QUESTION 81

Which NAC design model matches the following definitions?

 

clip_image002NAS is deployed centrally in the core or distribution layer.

clip_image002[1]Users are multiple hops away from the Cisco NAS.

clip_image002[2]After authentication and posture assessment, the client traffic no longer passes through the Cisco NAS.

clip_image002[3]PBR is needed to direct the user traffic appropriately.

 

A.

Layer 3 in-band virtual gateway

B.

Layer 3 out-of-band with addressing

C.

Layer 2 in-band virtual gateway

D.

Layer 2 out-of-band virtual gateway

 

Correct Answer: B

 

 

 

 

QUESTION 82

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?

 

clip_image004

 

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.

 

Correct Answer: B

 

 

QUESTION 83

Which of the following features might be used by the Enterprise Campus network designer as a means of route filtering?

 

A.

IPv4 static routes

B.

Route tagging using a route map in an ACL

C.

Tagging routes using the BGP MED

D.

EIGRP stub networks

 

Correct Answer: D

 

 

 

 

 

 

 

 

QUESTION 84

Which of the following two are effective and simple means of employing route summarization within the Enterprise Campus network? (Choose two)

 

A.

A default route (0.0.0.0 /0) advertised dynamically into the rest of the network

B.

Route filtering to manage traffic flows in the network, avoid inappropriate transit traffic through remote nodes, and provide a defense against inaccurate or inappropriate routing updates

C.

Use manual split horizon

D.

Use a structured hierarchical topology to control the propagation of EIGRP queries

E.

Open Shortest Path First (OSPF) stub areas

 

Correct Answer: AE

 

 

QUESTION 85

Whic
h network virtualization technology provides logical isolation of network traffic at Layer 3?

 

A.

VSS

B.

VLAN

C.

VRF-Lite

D.

MEC

 

Correct Answer: C

 

 

QUESTION 86

To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus?

 

A.

to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link

B.

to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link

C.

to two core switches from redundant distribution switches connected with a Layer 2 link

D.

to two core switches from redundant distribution switches connected with a Layer 3 link

E.

to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO

 

Correct Answer: D

 

 

QUESTION 87

Which option is an advanced WAN services design consideration for a multipoint architecture that connects two or more customer devices using Ethernet bridging techniques over an MPLS network?

 

A.

VPLS

B.

Metro Ethernet

C.

MPLS

D.

SONET/SDH

 

Correct Answer: A

 

QUESTION 88

Support of vPC on the Cisco Nexus 5000 access switch enables various new design options for the data center Access layer, including which of the following?

 

A.

The vPC peer link is not required for Access layer control traffic, and can instead be used to span VLANs across the vPC access switches

B.

A single switch can associate per-interface with more than one vPC domain

C.

vPC can be used on both sides of the MEC, allowing a unique 16-link EtherChannel to be built between the access and aggregation switches

D.

Allows an EtherChannel between a server and a access switch while still maintaining the level of availability that is associated with dual-homing a server to two different access switches

 

Correct Answer: C

 

 

QUESTION 89

The requirement for high availability within the Data Center network may cause the designer to consider which one of the following solutions?

 

A.

Construct a hierarchical network design using EtherChannel between a server and two VDCs from the same physical switch

B.

Utilize Cisco NSF with SSO to provide intrachassis SSO at Layers 2 to 4

C.

Define the Data Center as an OSPF NSSA area, advertising a default route into the DC and summarizing the routes out of the NSSA to the Campus Core

D.

Implement network services for the Data Center as a separate services layer using an active/active model that is more predictable in failure conditions

 

Correct Answer: B

 

 

QUESTION 90

A network team must provide a redundant secure connection between two entities using OSPF. The primary connection will be an Ethernet Private Line and the secondary connection will be a site-to-site VPN. What needs to be configured in order to support routing requirements for over the VPN connection?

 

A.

GRE Tunnel

B.

HTTPS

C.

Root Certificate

D.

AAA Server

 

Correct Answer: A

 

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