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Our company provide free download and tryout of the 300-420 study materials and update the 300-420 study materials frequently to guarantee that you get enough test bank and follow the trend in the theory and the practice. We provide 3 versions for you to choose thus you can choose the most convenient method to learn. Our 300-420 Study Materials are compiled by the experienced professionals elaborately. Our product boosts many advantages and to gain a better understanding of our 300-420 study materials please read the introduction of the features and the functions of our product as follow. The Cisco 300-420 exam evaluates the skills and knowledge of the candidates of enterprise design, including advanced addressing & routing solutions, WAN, advanced enterprise campus networks, SDA, as well as network & security services. This is a concentration test required for obtaining two certificates, and namely CCNP Enterprise and Cisco Certified Specialist – Enterprise Design. Please note that you also have to pass the core exam, which is Cisco 350-401. After that, you can add these certifications to your CV and demonstrate your expertise in the field of enterprise networking solutions.

Objectives of 300-420 Test

There are various topics that are included in the exam and they are:

• Automation (10%). The Automation domain includes things like choosing the correct YANG data model taking current requirements into account; differentiating between IETF, Cisco native YANG models, and Openconfig as well as between RESTCONF and NETCONF; understanding the impact of model-drive telemetry, covering on-change and periodic publications; comparing dial-in and dial-out approaches to model-drive telemetry.
• Network Services (20%). The last domain focuses on the ability to choose proper QoS strategies, designing network management techniques; designing end-to-end QoS policies covering shaping, queuing, marking, and more; describing multicast routing concepts, and creating multicast services, including MSDP, SSM, and PIM bidirectional.
• Advanced Enterprise Campus Networks (25%). This part of the exam content measures one's skills in designing campus networks for high availability and knowledge of techniques for platform abstraction, graceful restart, etc.; designing campus Layer 2 infrastructures and multicampus Layer 3 ones, including route summarization, VRFs, convergence, etc.; describing SD-Access Architecture as well as SD-Access fabric design for wireless and wired access.
• Advanced Address and Routing Solutions (25%). This domain mainly focuses on creating structured addressing plans for IPv4 and IPv6; creating scalable, stable, and secure routing designs for IS-IS, EIGRP, OSPF, and BGP, including route filtering, load sharing, address families, path preference attributes, and route reflectors; determining IPv6 migration strategies, involving native, boundaries, and overlay.
• Enterprise Networks and WAN (20%). This section addresses the following areas: comparison of WAN connectivity options (DWDM, Layer 2 VPN, 4G/5G, Metro Ethernet, etc.); designing site-to-site VPN, including dynamic multipoint VPN, Ipsec, GRE, and others; designing high availability for enterprise WAN (failover, backip connectivity, etc.); Cisco SD-WAN architecture (on-boarding, security, control plane, and more); Cisco SD-WAN design considerations (redundancy, security design, overlay design, and others).

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Cisco 300-420: Why?

For anyone who is trying to use Cisco products and solutions to build his/her career in the IT industry, becoming Cisco certified is the most appropriate thing to do. A lot of companies around the world, both big and small, are using the Cisco software and network equipment. No one can deny that Cisco products tend to be superior to the options of other competing organizations. What puts this provider at the top is the fact that it is consistently enhancing technology and adding improvements. The Cisco 300-420 is the perfect choice for those who are looking to pave their career towards enterprise design. Plus, passing this exam will give you an advantage over other applicants when looking for a job.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q89-Q94):

NEW QUESTION # 89
Which design consideration should be observed when EIGRP is configured on Data Center switches?

• A. Lower EIGRP hello and hold timers to their minimum settings to ensure rapid route reconvergence.
• B. Prevent unnecessary EIGRP neighborships from forming across switch virtual interfaces.
• C. Configure multiple EIGRP autonomous systems to segment Data Center services and applications.
• D. Perform manual summarization on all Layer 3 interfaces to minimize the size of the routing table.

Answer: D
NEW QUESTION # 90

Refer to the exhibit. Which two solutions maximize the use of the links between the core and distribution layers? (Choose two.)

• A. use HSRP
• B. use RPVSTP+
• C. use multiple equal-cost links
• D. use multiple unequal-cost links
• E. use an IGP

Answer: C,E Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 91
When provisioning bandwidth for an IP telephony network, which elements are unique to an IP telephony call?
(Choose two.)

• A. IGMP packets
• B. routing protocol packets
• C. voice stream
• D. speed of the segment to the telephone
• E. call-control signaling

Answer: C,E Explanation:
Bandwidth provisioning for an IP telephony call consists of the voice stream traffic and the call control traffic.
These elements are unique to an IP telephony call.
The network infrastructure should be examined to see if the required bandwidth exists to support the voice and call-control applications. The sum of the bandwidth necessary for each major application, including voice, video, and data, should not exceed 75% of the total available bandwidth for each link. Voice traffic can be characterized as:
Smooth
Benign
Drop sensitive
Delay sensitive
Voice packets are typically around 60 to 120 bytes in size. For good voice quality, packet loss should be less than 1 percent and delay should be no more than 150 ms.
The IP telephony voice call-control procedures also generate traffic. The call control procedures are in the areas of call setup, maintenance, redirect, and tear down. There are special protocols such as H.323 and Media Gateway Control Protocol (MGCP) that handle these procedures.
Voice applications are delay-sensitive. Speech is sampled by voice processors referred to as a codec (coder/ decoder). Then the digitized voice-sample outputs of the codecs are sent into the network towards the receiver at regular intervals in real-time transport protocol (RTP) packets. If these packets containing the voice samples are delayed for any reason behind other data traffic, the quality of the voice conversation suffers.
The transportation of these voice applications in RTP packets through the IP network handled by H.323 protocols and devices is referred to as Voice over IP (or VoIP for short).
The following are other network and design considerations besides bandwidth relating to IP telephony infrastructure support:
Determine if the cabling plant can support the IP telephony equipment.
Determine if the switch hardware can supply power to attached IP telephony equipment or if additional hardware is required.
Ensure that infrastructure supports priority end-to-end VLANs and QoS networking.
Internet Group Management Protocol (IGMP) is used for managing the membership of IP multicast groups and is not an element unique to an IP telephony call.
Routing protocol packets (RIP, OSPF, and EIGRP) are used by routers to share routing information, and are not elements unique to an IP telephony call.
The speed of the segment to the telephone is important to VoIP, but that is not an element unique to an IP telephony call.
Objective:
Layer 2 Technologies
Sub-Objective:
Configure and verify VLANs
References:
Cisco > Support > Technology Support > Voice > Telephony Signaling
NEW QUESTION # 92
The implementations group has been using the test bed to do a 'proof-of-concept' that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing scheme, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 address.
Use the supported commands to isolated the cause of this fault and answer the following questions.
What is the solution to the fault condition?

• A. Enable OSPF routing on the s0/0/0 interface using the network 10.1.1.0 0.0.0.255 area 12 command.
• B. Redistribute the BGP route into OSPF using the redistribute BGP 65001 subnet command.
• C. Enable OSPF routing on the s0/0/0 interface using the network 209.65.200.0 0.0.0.255 area 12 command.
• D. Enable OSPF authentication on the s0/0/0 interface using the ip ospf authentication message-digest command

Answer: D Explanation:
On R1, for IPV4 authentication of OSPF the command is missing and required to configure------ ip ospf authentication message-digest
NEW QUESTION # 93
Which solution allows overlay VNs to communicate with each other in an SD-WAN Architecture?

• A. External fusion routers can be used to map VNs to VRFs and selectively route traffic between VRFs.
• B. SGTs can be used to permit traffic from one VN to another.
• C. Route leaking can be used on the fabric border nodes to inject routes from one VN to another.
• D. GRE tunneling can be configured between fabric edges to connect one VN to another.

Answer: D
NEW QUESTION # 94
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