[Jan 14, 2022] Valid 300-420 Test Answers & 300-420 Exam PDF
Valid CCNP Enterprise 300-420 Dumps Ensure Your Passing
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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.
NEW QUESTION 75
An engineer is working for a large cable TV provider that requires multiple sources streaming video on different channels using multicast with no rendezvous point. Which multicast protocol meets these requirements?
- A. PIM-SSM
- B. BIDIR-PIM
- C. PIM-SM
- D. any-source multicast
Answer: B
Explanation:
Section: Network Services
NEW QUESTION 76
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?
- A. Periodic updates include a full copy of the data that is subscribed to.
- B. Empty data subscriptions do not generate empty update notifications.
- C. The primary push update is sent immediately and cannot be delayed.
- D. Updates that contain changes within the data are sent only when changes occur.
Answer: A
Explanation:
Section: Automation
NEW QUESTION 77
Drag and drop the characteristics from the left onto the correct telemetry mode on the right.
Answer:
Explanation:
In a dial-in mode, the destination initiates a session to the router and subscribes to data to be streamed. Dialin mode is supported over gRPC in only 64-bit platforms In a dial-out mode, the router initiates a session to the destinations based on the subscription. All 64-bit IOS XR platforms (except for NCS 6000 series routers) support gRPC and TCP protocols. All 32-bit IOS XR platforms support only TCP.
Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/asr9000/telemetry/b-telemetry-cg-asr9000-61x/b-telemetry-cgasr9000-
61x_chapter_010.html#id_36445
NEW QUESTION 78
Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)
- A. a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as ABRs
- B. a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs
- C. a new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs
- D. a new OSPF area for R1 and R2 connections, with R1 and R2 as ABRs
- E. a new OSPF area for R3 and R4 connections, with R3 and R4 as ABRs
Answer: B,C
NEW QUESTION 79
A customer with an IPv4 only network topology wants to enable IPv6 connectivity while preserving the IPv4 topology services. The customer plans to migrate IPv4 services to the IPv6 topology, then decommission the IPv4 topology. Which topology supports these requirements?
- A. NAT64
- B. dual stack
- C. 6VPE
- D. 6to4
Answer: B
NEW QUESTION 80
A network engineer must segregate three interconnected campus networks using IS-IS routing. A two-layer hierarchy must be used to support large routing domains and to avoid more specific routes from each campus network being advertised to other campus network routers automatically. Which two actions does the engineer take to accomplish this segregation? (Choose two.)
- A. Assign the same IS-IS NET value for each campus, and configure internal campus routers with Level 1/ Level 2 routing.
- B. Designate two IS-IS routers as BDR routers at the edge of each campus, and configure one BDR for all Level 1 routers and one BDR for all Level 2 routers.
- C. Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.
- D. Utilize different MTU values for each campus network segment. Level 2 backbone routers must utilize a larger MTU size of 9216.
- E. Designate two IS-IS routers from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
Answer: C,E
NEW QUESTION 81
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 82
Drag and drop the characteristics from the left onto the Yang model they describe on the right.
Select and Place:
Answer:
Explanation:
NEW QUESTION 83
Drag and drop the characteristics from the left onto the YANG modules they describe on the right. Not all options are used.
Answer:
Explanation:
NEW QUESTION 84
Refer to the exhibit.
An engineer is designing an OSPF network for a client. Requirements dictate that the routers in Area 1 should receive all routes belonging to the network, including EIGRP, except the ones originated in the RIP domain. Which action should the engineer take?
- A. Make the area 1 routers part of area 0.
- B. Make area 1 a NSSA.
- C. Make area 1 a stub.
- D. Make area 1 a standard OSPF area.
Answer: C
NEW QUESTION 85
Which of the following features does GLBP provide, but not HSRP and VRRP? (Choose all that apply.)
- A. Support for automatic load balancing
- B. Support for single active router
- C. Support for interface tracking
- D. Support for multiple gateways
Answer: A,D
Explanation:
Support for automatic load balancing and support for multiple gateways are two features that are provided by Gateway Load Balancing Protocol (GLBP) but not by Hot Standby Routing Protocol (HSRP) or Virtual Router Redundancy Protocol (VRRP).
GLBP, HSRP, and VRRP provide a redundant and fault-tolerant solution in case of first-hop router failure in a network. The basic operation of these three protocols is the same. In all three protocols, a group of routers on the same LAN is formed. One of the routers is selected as the active router and another as the standby router.
The router with the highest priority is automatically selected as the active router. If the active router fails, the standby router assumes the responsibilities of the active router. The role of the active router is to forward the packets from the hosts to the virtual router (default gateway).
GLBP provides automatic load balancing between multiple routers by configuring multiple MAC addresses but a single virtual IP address. Every active virtual forwarder (AVF) in the group is configured with the virtual IP address but with different MAC addresses. All such AVFs can then participate in the packet-forwarding process. Multiple gateways then can share the load. On the contrary, HSRP and VRRP do not support automatic load balancing. Both these protocols require additional configuration on all the routers that need to load balance. The additional configuration involves using multiple groups on the routers or assignment of different default gateways for the hosts.
Note that GLBP and VRRP are supported by both Cisco and non-Cisco routers, whereas, HSRP is supported only by Cisco routers.
Single active router and interface tracking both are supported by GLBP, HSRP, and VRRP.
Objective:
Infrastructure Services
Sub-Objective:
Configure and verify first-hop redundancy protocols
References:
Home > End-of-Sale and End-of-Life Products > Cisco IOS Software Releases 12.2.T > Product Literature > White Papers > GLBP Gateway Load Balancing Protocol > Information About Gateway Load Balancing Protocol Home > Support > Technology Support > IP > IP Application Services > Design > Design Technotes > Hot Standby Router Protocol Features and Functionality > HSRP Background and Operations > HSRP Operation
NEW QUESTION 86
In an SD-WAN architecture, which methods are used to bootstrap a vEdge router?
- A. DNS records or DHCP options
- B. ZTP or manual configuration
- C. vManage or DNS records
- D. DHCP options or manual configuration
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION 87
An engineer is looking for a standards-driven YANG model to manage a multivendor network environment. Which model must the engineer choose?
- A. IEEE NETCONF
- B. IETF
- C. Native
- D. OpenConfig
Answer: B
NEW QUESTION 88
Which solution allows overlay VNs to communicate with each other in an SD-WAN Architecture?
- A. SGTs can be used to permit traffic from one VN to another.
- B. External fusion routers can be used to map VNs to VRFs and selectively route traffic between VRFs.
- C. GRE tunneling can be configured between fabric edges to connect one VN to another.
- D. Route leaking can be used on the fabric border nodes to inject routes from one VN to another.
Answer: C
NEW QUESTION 89
Which three feature sets are used in Stackwise technology? (Choose three.)
- A. WAN Services
- B. IP Services
- C. IP Base
- D. ARP Base
- E. LAN Agent
- F. LAN Base
Answer: B,C,F
NEW QUESTION 90
An engineer is working for a large cable TV provider that requires multiple sources streaming video on different channels using multicast with no rendezvous point. Which multicast protocol meets these requirements?
- A. PIM-SSM
- B. BIDIR-PIM
- C. PIM-SM
- D. any-source multicast
Answer: A
NEW QUESTION 91
Refer to the exhibit.
Which two solutions maximize the use of the links between the core and distribution layers? (Choose two.)
- A. use an IGP
- B. use multiple unequal-cost links
- C. use HSRP
- D. use RPVSTP+
- E. use multiple equal-cost links
Answer: A,E
NEW QUESTION 92
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Know about the cost of Cisco 300-420 Exam
- The cost of the Cisco 300-420 Exam is $300.
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