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These Cisco 300-420 Exam questions help you practice theoretical and practical skills in different aspects, making problem-solving easier. Our Cisco 300-420 questions PDF is a complete bundle of problems presenting the versatility and correlativity of questions observed in past exam papers. These questions are bundled into Cisco 300-420 PDF Questions following the official study guide.
| Section | Objectives |
|---|---|
| Enterprise Network Design Principles | - Design methodologies and best practices - Scalability and high availability design |
| Network Automation and Programmability | - Controller-based networking design - API-driven network automation concepts |
| Security Design in Enterprise Networks | - VPN and perimeter security architecture - Segmentation and access control design |
| WAN and Edge Connectivity Design | - SD-WAN architecture and design considerations - Traditional WAN and internet edge design |
| Network Services Design | - Routing protocols design (OSPF, EIGRP, BGP) - Multicast and QoS design considerations |
| Enterprise Campus Network Design | - Spine-leaf and hierarchical design models - Campus LAN architecture |
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NEW QUESTION # 341
Refer to the exhibit. A company designed a new WAN connectivity plan and asked an engineer to review the design. The company wants to increase overall resiliency and minimize costs. Which configuration meets these requirements?
Answer: B
Explanation:
A dynamic routing protocol on the WAN connection improves resiliency by allowing routing updates and path changes to occur automatically when reachability changes. It also minimizes cost because it uses existing WAN infrastructure rather than requiring additional hardware such as redundant chassis components or power supplies.
NEW QUESTION # 342
Which authentication service is needed to configure 802.1x?
Answer: B
Explanation:
With 802.1x, the authentication server - performs the actual authentication of the client. The authentication server validates the identity of the client and notifies the switch whether or not the client is authorized to access the LAN and switch services. Because the switch acts as the proxy, the authentication service is transparent to the client. The Remote Authentication Dial-In User Service (RADIUS) security system with Extensible Authentication Protocol (EAP) extensions is the only supported authentication server.
References: https://www.cisco.com/c/en/us/td/docs/switches/metro/me3400/software/release/12-2_25_ex/ configuration/guide/3400scg/sw8021x.pdf page 8-2
NEW QUESTION # 343
A network engineer must design a multicast solution to prevent the spoofing of multicast streams and ensure efficient bandwidth utilization. The network will be merged with another multicast domain in the future, and the merge must require minimum effort. Which two solutions meet the customer requirements? (Choose two.)
Answer: A,D
Explanation:
The ease of installation and operation of SSM makes it ideal for network operators, especially in those cases where content needs to be forwarded between multiple independent PIM domains (because there is no need to manage MSDP for SSM between PIM domains.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-ssm.html
NEW QUESTION # 344
An engineer is designing an IPv4 addressing plan for an enterprise with 1000 branches. Each branch requires a prefix for data and a prefix for voice. Each prefix must accommodate up to 128 hosts, and prefixes must facilitate summarization at aggregation points in the network. The security team requires a simple method for identifying voce prefixes. Which allocation does the engineer recommend from the RFC1918 address space?
Answer: B
Explanation:
For example:
Site 0001
Data:10.0.0.0/24
Voice: 10.0.1.0/24
summary route : 10.0.0.0/23
Site 0002
Data:10.0.2.0/24
Voice: 10.0.3.0/24
summary route: 10.0.2.0/23
cont...
site 0129
Data:10.1.0.0/24
Voice: 10.1.1.0/24
summary route: 10.1.0.0/23
site 0130
Data:10.1.2.0/24
Voice: 10.1.3.0/24
summary route: 10.1.2.0/23
so 3rd octet is odd number assigned to voice, and even number assigned to data; for security team to recongize voice prefix, use an ACL with wildcast to filter odd number on third octet, started from 10.0.1.0 0.0.254.255, 10.1.1.0 0.0.254.255......, 10.1.1.0 0.0.254.255 etc; for 10.0.1.0 0.0.254.255, any IP in binary that started with 00001010.00000000.xxxxxxx1.xxxxxxxx will be matched (x = either 0 or
1), covert 3rd octet into dec, for example, 10000001 = 129 which is a voice VLAN.
NEW QUESTION # 345
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?
Answer: D
NEW QUESTION # 346
......
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