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Designing Cisco Network Service Architectures (ARCH)

QUESTION 91

A company is running BGP on the edge with multiple service providers in a primary and secondary role. The company wants to speed up time if a failure were to occur with the primary, but they are concerned about router resources. Which method best achieves this goal?

 

A.

Utilize BFD and lower BGP hello interval

B.

Decrease the BGP keepalive timer

C.

Utilize BFD and tune the multiplier to 50

D.

Utilize BFD and keep the default BGP timers

 

Correct Answer: D

 

 


QUESTION 92

Addressing QoS design in the Enterprise Campus network for IP Telephony applications means what?

 

A.

It is critical to identify aggregation and rate transition points in the network, where preferred traffic and congestion QoS policies should be enforced

B.

Suspect traffic should be dropped closest to the source, to minimize wasting network resources

C.

An Edge traffic classification scheme should be mapped to the downstream queue configuration

D.

Applications and Traffic flows should be classified, marked and policed within the Enterprise Edge of the Enterprise Campus network

 

Correct Answer: A

 

 

 

 

QUESTION 93

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 94

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

 

 

QUESTION 95

A company implemented VoIP in a campus network and now wants a consistent me
thod to implement using AutoQoS. Which two parameters must be considered before AutoQoS is configured? (Choose two.)

 

A.

CEF must be enabled.

B.

AutoQoS is available only on routers.

C.

Traffic discovery must be performed manually.

D.

No service policy can be applied already.

E.

Manual traffic analysis must be performed.

 

Correct Answer: AD

 

 

QUESTION 96

Why is QoS important for in-band management?

 

A.

It supports remote management when traffic volume is high.

B.

It supports proper routing.

C.

It supports network security against DoS attacks and worm outbreaks.

D.

It supports network redundancy.

 

Correct Answer: A

 

QUESTION 97

What is the next action taken by the Cisco NAC Appliance after it identifies a vulnerability on a client device?

 

A.

denies the client network resource access

B.

repairs the effected devices

C.

generates a Syslog message

D.

permits the client but limits to guest access

 

Correct Answer: A

Explanation:

https://www.cisco.com/c/en/us/td/docs/security/nac/appliance/configuration_guide/47/cam/47cam-book/m_intro.html

 

“Cisco NAC Appliance compliance policies reduce the threat of computer viruses, worms, and other malicious code on your network. Cisco NAC Appliance is a powerful tool that enables you to enforce network access requirements, detect security threats and vulnerabilities on clients, and distribute patches, antivirus and antispyware software. It lets you block access or quarantine users who do not comply with your security requirements, thereby stopping viruses and worms at the edge of the network, before they can do harm.”

 

 

QUESTION 98

Which VPN technology supports dynamic creation of spoke-to-spoke VPN tunnels to provide a scalable design?

 

A.

IPsec

B.

GRE over IPsec

C.

DMVPN

D.

GRE

 

Correct Answer: C

 

 

QUESTION 99

Which practice is recommended when designing scalable OSPF networks?

 

A.

Maximize the number of routers in an area.

B.

Minimize the number of ABRs.

C.

Minimize the number of areas supported by an ABR.

D.

Maximize the number of router adjacencies.

 

Correct Answer: C

 

 

QUESTION 100

When APIC is down on cluster device … What is the minimum number of APICs requirement for a production ACI Fabric to continue to operate?

 

A.

1

B.

2

C.

3

D.

4

Correct Answer: C

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