300-420–100% Free Accurate Study Material | Authoritative New Designing Cisco Enterprise Networks Dumps Book

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WAN for Enterprise Networks

This topic focuses on 20% of the overall content and validates the applicants’ competence in the following areas:

Explaining the architecture for Cisco SD-WAN, including management plane orchestration plan, data plane, security, control plane, provisioning, and on-boarding;
Explaining the design considerations for Cisco SD-WAN (LAN design, control plane design, overlay design, scalability, redundancy, high availability, security design, multicast & QoS over the SD-WAN fabric).
Designing site-to-site VPN, such as DMVPN, MPLS L3 VPN, L2 VPN, IPsec, GET VPN & GRE;
Designing high availability for enterprise WAN, covering failover, multihomed, backup connectivity, as well as single-homed;
Comparing the connectivity options for WAN, including MPLS L3 VPN, L2 VPN, 4G/5G, DWDM, Metro Ethernet, and SD-WAN customer edge;

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Cisco 300-420 exam covers a wide range of topics related to designing Cisco Enterprise Networks. Some of the topics that are covered include advanced routing and switching technologies, network automation, network security, network services, and network design principles. 300-420 Exam is designed to test your ability to apply these concepts to real-world scenarios and to design and implement solutions that meet the needs of modern businesses.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q101-Q106):

NEW QUESTION # 101
An engineer is designing a campus network with Cisco Catalyst 9500 switches in the aggregation layer. The design requires running nonblocking Layer 2 MEC from the aggregation layer to the access layer. The Catalyst switches are located on different campus floors for availability reasons, and each access switch will contain a single VLAN. Which technology must the engineer choose for the aggregation switches in the design?

A. VPC
B. VSS
C. StackWise-480
D. StackWise Virtual

Answer: D

NEW QUESTION # 102
The customer solution requires QoS to support streaming multimedia over a WAN. An architect chooses to use Per-Hop Behavior.
Which solution should the engineer use to of mark traffic traveling between branch sites?

A. CBWFQ with DSCP AF2
B. LLQ with DSCP AF4
C. LLQ with DSCP EF
D. CBWFQ with DSCP AF3

Answer: D

Explanation:
LLQ with EF seems way too strict for STREAMING multimedia (where one can actually take advantage of buffering).
Judging by the various Cisco QoS baseline docs (even though the ones below are quite old), streaming video should be somewhere at AF3x/CS4.
https://www.cisco.com/en/US/technologies/tk543/tk759/technologies_white_paper0900aecd8029
5a9b.pdf
https://community.cisco.com/t5/collaboration-voice-and-video/cisco-qos-baseline-classification- and-marking-and-mapping/ta-p/3108355

NEW QUESTION # 103
Refer to the exhibit. An engineer is designing an OSPF solution with these requirements:
- NMS server will manage R5 and R6.
- Upon failure of R1, all NMS traffic should be routed through R4.
- Upon failure of the link between R5 and R6, all traffic destined for
10.6.6.6 should be routed through R4.
Which solution must the engineer choose?

A. Redistribute OSPF process 1 into process 2 on R1 and R4.
B. Enable the default-information originate command with a higher metric on R2 to R1.
C. Apply static routes on R2 and R3 with IP SLA tracking toward R5 and R6.
D. Advertise 172.16.1.1 into OSPF process 1 with high cost on R1.

Answer: A

NEW QUESTION # 104
Which encoding languages are supported in NETCONF compared to RESTCONF?

A. NETCONF supports XML, and RESTCONF supports JSON.
B. NETCONF supports XML and JSON, and RESTCONF supports XML.
C. NETCONF supports JSON, and RESTCONF supports XML.
D. NETCONF supports XML, and RESTCONF supports XML and JSON.

Answer: D

Explanation:
NETCONF natively supports XML encoding for configuration and state data. RESTCONF supports both XML and JSON, providing flexible encoding options for programmatic access and integration with modern web-based applications.

NEW QUESTION # 105
An architect is designing a network that will utilize the spanning tree protocol to ensure a loop-free topology.
The network will support an engineering environment where it is necessary for end users to connect their own network switches for testing purposes. Which feature should the architect include in the design to ensure the spanning tree topology is not affected by these rogue switches?

A. BPDU Skew Detection
B. loop guard
C. BPDU guard
D. root guard

Answer: D

Explanation:
Section: Advanced Enterprise Campus Networks

NEW QUESTION # 106
......

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