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Cisco 642-874 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Enterprise Network Design Principles | 20% | - Hierarchical and modular network design - Cisco enterprise architecture frameworks - PPDIOO design methodology |
| Topic 2: Advanced Campus Network Design | 25% | - Advanced switching and routing protocols - Layer 2 and Layer 3 campus architectures - High availability and redundancy design |
| Topic 3: Data Center and Converged Services Design | 12% | - Network security services integration - Data center infrastructure and connectivity - QoS design for converged networks |
| Topic 4: Network Security and Optimization | 8% | - Performance and scalability optimization - Security framework and policy design |
| Topic 5: Advanced IP Addressing and Routing Design | 20% | - IPv6 integration and multicast design - OSPF, EIGRP, and BGP design - Structured and summarizable addressing |
| Topic 6: WAN and Edge Connectivity Design | 15% | - WAN technologies and service selection - VPN and secure connectivity design - Internet edge and DMZ architecture |
Cisco Designing Cisco Network Service Architectures Sample Questions:
Question #1
Which VRF component ensures control plane separation between the different Layer 3 VPNs?
A. a subset of the router interfaces
B. FIB
C. RIB
D. routing protocol instance
Question #2
A company implemented VoIP in a campus network and now wants a consistent method to implement using AutoQoS. Which two parameters must be considered before AutoQoS is configured? (Choose two.)
A. No service policy can be applied already.
B. CEF must be enabled.
C. Manual traffic analysis must be performed.
D. AutoQoS is available only on routers.
E. Traffic discovery must be performed manually.
Question #3
Which two ways to support secure transport of multicast traffic are true? (Choose two.)
A. Disable encryption for multicast traffic.
B. Use GET VPN.
C. Use IPsec over GRE tunnel.
D. Use spoke-to-spoke design.
E. Use NBMA instead of broadcast.
Question #4
The requirement for high availability within the Data Center network may cause the designer to consider which one of the following solutions?
A. 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
B. Construct a hierarchical network design using EtherChannel between a server and two VDCs from the same physical switch
C. Implement network services for the Data Center as a separate services layer using an active/active model that is more predictable in failure conditions
D. Utilize Cisco NSF with SSO to provide intrachassis SSO at Layers 2 to 4
Question #5
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. NSF with SSO
D. CEF
Solutions:
| Question #1 Correct Answer: D | Question #2 Correct Answer: A,B | Question #3 Correct Answer: B,C | Question #4 Correct Answer: D | Question #5 Correct Answer: B |
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