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Cisco 642-873 - Questions & Answers

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Question 1
Single choice

Which of the following is true regarding the effect of EIGRP queries on the network design?

A.

EIGRP queries will be the most significant issue with respect to stability and convergence

B.

EIGRP queries are not a consideration as long as EIGRP has a feasible successor with a next hop AD that is greater than the FD of the current successor route

C.

EIGRP queries will only increase the convergence time when there are no EIGRP stubs designed in the network

Question 2
Single choice

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

Question 3
Single choice

Which configuration represents resiliency at the hardware and software layers?

A.

multiple connections and FHRP

B.

HSRP and GLBP

C.

redundant supervisor and power supplies

D.

dual uplinks and switches

Question 4
Single choice

Which QoS architecture provides scalability of implementation?

A.

IntServ

B.

DiffServ

C.

LLQ

D.

RSVP

Question 5
Single choice

What feature is a benefit of using Cisco UCS blade servers for data center virtualization?

A.

guest VM high availability

B.

converged LAN and SAN infrastructure

C.

host based etherchannel

D.

built-in hypervisor

Question 6
Single choice

Which Cisco NAC Appliance component is optional?

A.

NAC Appliance Manager

B.

NAC Appliance Server

C.

NAC Appliance Agent

D.

NAC Appliance Policy Updates

Question 7
Single choice

Which NAC design model matches the following definitions?

NAS is deployed centrally in the core or distribution layer. Users are multiple hops away from the Cisco NAS. After authentication and posture assessment, the client traffic no longer passes through the Cisco
NAS.
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

Question 8
Single choice

Which STP enhancement can be configured on Layer 2 ports between distribution layer switches?

A.

LoopGuard

B.

PortFast

C.

UplinkFast

D.

RootGuard

Question 9
Single choice

A network engineer must perform posture assessments on Cisco ASA remote access VPN clients and control their network access based on the results.

What mode is the Cisco best practice NAC deployment design for this situation?

A.

Layer 2 in-band real IP gateway mode

B.

Layer 2 out-of-band real IP gateway mode

C.

Layer 3 in-band virtual gateway mode

D.

Layer 3 out-of-band virtual gateway mode

Question 10
Single choice

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

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