300-420 TRAINING MATERIALS ARE WORTHY FOR YOU TO BUY IT - VALIDDUMPS

300-420 Training Materials are Worthy for You to Buy It - ValidDumps

300-420 Training Materials are Worthy for You to Buy It - ValidDumps

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Certification Path

To earn the CCNP Enterprise certification, the applicant first needs to take one core exam that is 350-401. It mainly focuses on one's knowledge related to network assurance, automation, security, infrastructure, architecture, and virtualization.

Once aced that test, the candidate can choose the concentration exam from the set of six options, and Cisco 300-420 is one of them. Moreover, by passing this exam, you are qualified for the Cisco Certified Specialist – Enterprise Design certification. The rest of the offered tests focus on advanced routing and services, designing and implementing wireless networks, SD-WAN, and automation solutions.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q69-Q74):

NEW QUESTION # 69
See the solution below
Explanation/Reference:
There are two ways to configure interVLAN routing in this case:
+ Use RouterC as a "router on a stick" and SwitchC as a pure Layer2 switch. Trunking must be established between RouterC and SwitchC.
+ Only use SwitchC for interVLAN routing without using RouterC, SwitchC should be configured as a Layer 3 switch (which supports ip routing function as a router). No trunking requires.
The question clearly states "No trunking has been configured on RouterC" so RouterC does not contribute to interVLAN routing of hosts H1 & H2 -> SwitchC must be configured as a Layer 3 switch with SVIs for interVLAN routing.
We should check the default gateways on H1 & H2. Click on H1 and H2 and type the "ipconfig" command to get their default gateways.

Answer:

Explanation:
>ipconfig
We will get the default gateways as follows:
Host1:
+ Default gateway: 190.200.250.33
Host2:
+ Default gateway: 190.200.250.65
Now we have enough information to configure SwitchC (notice the EIGRP AS in this case is 650) Note: VLAN2 and VLAN3 were created and gi0/10, gi0/11 interfaces were configured as access ports so we don't need to configure them in this sim.
SwitchC# configure terminal
SwitchC(config)# int gi0/1
SwitchC(config-if)#no switchport -> without using this command, the simulator does not let you assign IP address on Gi0/1 interface.
SwitchC(config-if)# ip address 10.10.10.2 255.255.255.0 ->RouterC has used IP 10.10.10.1 so this is the lowest usable IP address.
SwitchC(config-if)# no shutdown
SwitchC(config-if)# exit
SwitchC(config)# int vlan 2
SwitchC(config-if)# ip address 190.200.250.33 255.255.255.224
SwitchC(config-if)# no shutdown
SwitchC(config-if)# int vlan 3
SwitchC(config-if)# ip address 190.200.250.65 255.255.255.224
SwitchC(config-if)# no shutdown
SwitchC(config-if)#exit
SwitchC(config)# ip routing (Notice: MLS will not work without this command) SwitchC(config)# router eigrp 65010 SwitchC(config-router)# network 10.10.10.0 0.0.0.255 SwitchC(config-router)# network 190.200.250.32 0.0.0.31 SwitchC(config-router)# network 190.200.250.64 0.0.0.31 NOTE: THE ROUTER IS CORRECTLY CONFIGURED, so you will not miss within it in the exam, also don't modify/delete any port just do the above configuration. Also some reports said the "no auto-summary" command can't be used in the simulator, in fact it is not necessary because the network 190.200.0.0/16 is not used anywhere else in this topology.
In order to complete the lab, you should expect the ping to SERVER to succeed from the MLS, and from the PCs as well.
Also make sure you use the correct EIGRP AS number (in the configuration above it is 650 but it will change when you take the exam) but we are not allowed to access RouterC so the only way to find out the EIGRP AS is to look at the exhibit above. If you use wrong AS number, no neighbor relationship is formed between RouterC and SwitchC.
In fact, we are pretty sure instead of using two commands "network 190.200.250.32 0.0.0.31″ and "network
190.200.250.64 0.0.0.31″ we can use one simple command "network 190.200.0.0″ because it is the nature of distance vector routing protocol like EIGRP: only major networks need to be advertised; even without "no auto- summary" command the network still works correctly. But in the exam the sim is just a flash based simulator so we should use two above commands, just for sure. But after finishing the configuration, we can use "show run" command to verify, only the summarized network 190.200.0.0 is shown.


NEW QUESTION # 70
Refer to the exhibit.

A network engineer must improve the current IS-IS environment. The Catalyst switch is equipped with dual supervisors. Each time a stateful switchover occurs, the network experiences unnecessary route recomputation. Which solution addresses this issue if the upstream router does not understand graceful restart messaging?

  • A. Enable NSF on the switch.
  • B. Enable IS-IS remote LFA FRR on both devices.
  • C. Enable NSR on the switch.
  • D. Configure ISIS aggressive timers on both devices.

Answer: A


NEW QUESTION # 71
An engineer is designing a network for a customer running a wireless network with a common VLAN for all APs. The customer is experiencing unicast flooding in the Layer 2 network between the aggregation and access layers. The customer wants to reduce the flooding and improve convergence time. Which solution meets these requirements?

  • A. Align HSRP primary and STP root bridges and reduce ARP timers to match CAM timers on the aggregation layer switches.
  • B. Migrate to a Layer 3 access campus design if the APs can run on separate VLANs.
  • C. Align HSRP primary and STP root bridges if the APs cannot run on separate VLANs.
  • D. Migrate all APs to a common Layer 2 access layer switch and run Layer 3 from the aggregation layer to all remaining access layer switches.

Answer: A

Explanation:
The default ARP table aging time is 4 hours while the CAM holds the entries for only 5 minutes.
The switch sends out a frame to all forwarding ports within the respective VLAN when the destination MAC address is aged out from the CAM table. You need a CAM aging timer greater or equal to the ARP timeout in order to prevent unicast flooding.
https://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/71079-arp- cam- tableissues.html#:~:text=The%20default%20ARP%20table%20aging%20time%20is%204,ARP%
20timeout%20in%20order%20to%20prevent%20unicast%20flooding.


NEW QUESTION # 72
How do endpoints inside an SD-Access network reach resources outside the fabric?

  • A. SD-Access transit links are used to transport encapsulated traffic from one fabric to another
  • B. A fabric edge is used to de-encapsulate VXLAN traffic to normal IP traffic then transported over the outside network
  • C. Fabric borders use VRFs to map VNs to VRFs
  • D. a VRF fusion router is used to map resources in one VN to another VN

Answer: C

Explanation:
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html


NEW QUESTION # 73
An engineer must design a VPN solution for a company that has multiple branches connecting to a main office.
What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choosetwo.)

  • A. greater scalability
  • B. support for anycast gateway
  • C. dynamic spoke-to-spoke tunnels
  • D. lower traffic overhead
  • E. support for AES 256-bit encryption

Answer: A,C


NEW QUESTION # 74
......

These Designing Cisco Enterprise Networks (300-420) practice test questions are customizable and give real Designing Cisco Enterprise Networks (300-420) exam experience. Windows computers support desktop software. The web-based 300-420 Practice Exam is supported by all browsers and operating systems.

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