Cisco 642-874 Dumps Study Material

QUESTION 26

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 PIMSM network

Correct Answer: B

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QUESTION 25

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

642-874 Cisco Exam Question Answers

QUESTION 24

Which protocol will not adhere to the design requirement of the control plane being either separated or combined within a virtualization technology?

A. FHRP
B. STP
C. CEF
D. NSF with SSO

Correct Answer: B

Cisco 642-874 Exam Questions

Question 23

Which technology is an example of the need for a designer to clearly define features and desired performance when designing advanced WAN services with a service provider?

A. FHRP to remote branches
B. Layer 3 MPLS VPNs secure routing
C. Control protocols (for example Spanning Tree Protocol) for a Layer 3 MPLS service
D. Intrusion prevention, QoS, and stateful firewall support network wide

Correct Answer: B

Cisco 642-874 Dumps Study Material

Question 22

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.

 

Correct Answer: C

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Question 21

Which statement is the most accurate regarding IPsec VPN design for an Enterprise Campus environment?

A. VPN device IP addressing must align with the existing Campus addressing scheme.
B. The choice of a hub-and-spoke or meshed topology ultimately depends on the number of remotes.
C. Sizing and selection of the IPsec VPN headend devices is most affected by the throughput bandwidth
requirements for the remote offices and home worker
D. Scaling considerations such as headend configuration, routing protocol choice, and topology have the broadest impact on the design.

Correct Answer: D

642-874 Cisco Exam Dumps

642-874 Question 20

When designing the routing for an Enterprise Campus network it is important to keep which of the following route filtering aspects in mind?

A. Filtering is only useful when combined with route summarization
B. It is best to filter (allow) the default and summary prefixes only in the Enterprise Edge to remote sites or site-to-site IPsec VPN networks
C. IGPs (for example EIGRP or OSPF) are superior to route filtering in avoiding inappropriate transit traffic through remote nodes or inaccurate or inappropriate routing updates
D. The primary limitation of router filtering is that it can only be applied on outbound updates

Correct Answer: B