Latest 300-420 Actual Free Exam Questions Updated 377 Questions
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NEW QUESTION # 214
A company has many spoke sites with two data centers. The company wants to exchange the routing information between the data centers and the spoke sites using EIGRP. All locations belong to a single AS, and auto-summarization is disabled. Which two actions must the company choose? (Choose two.)
- A. Split the network into two separate ASs.
- B. Make each spoke site router a stub router.
- C. Summarize the routes between the hubs.
- D. Summarize the routes from spokes to the hubs.
- E. Exchange all routes between locations.
Answer: D,E
NEW QUESTION # 215
An engineer is designing a BGP network for a large customer. To permit efficient scaling, the BGP domain is split into clusters. Which peering solution should be used between the route reflectors in different clusters for the BGP routes to be propagated appropriately?
- A. The route reflectors should be nonclients with regards to each other.
- B. The route reflectors should not have any kind of BGP peering.
- C. The route reflectors should have peering through another nonclient router.
- D. The route reflectors should be made dents of each other.
Answer: A
Explanation:
Explanation
When configure multi-cluster of BGP RRs, RRs should peer with each RR as non-client according to CCIE routing TCP/IP volumn 2 @2001 page 127
- if the route was learned from nonclient IBGP peer, it is reflected to client only (here RR's route learnt from other RRs is able to reflect to its client)
- if the route was learned from a client, it is reflected to all nonclients and clients, except for the originating client. (routes learnt within the cluster can reflect to nonclient, RR)
- it the route was learnt from an EBGP peer, it is reflected to all nonclients and clients.
NEW QUESTION # 216
Which node performs the LISP Map-Server and Map-Resolver functions in the Cisco SD-Access network architecture?
- A. intermediate node
- B. border node
- C. fabric edge node
- D. control plane node
Answer: D
NEW QUESTION # 217
Drag and drop the elements from the left onto the functions they perform in the Cisco SD-WAN architecture on the right.
Answer:
Explanation:
Explanation
Table Description automatically generated
NEW QUESTION # 218
Which function are fabric intermediate nodes responsible for in an SD-Access Architecture?
- A. transporting IP packets between edge nodes and border nodes
- B. mapping EIDs to RLOCs
- C. encapsulating user traffic in a VXLAN header including the SGT
- D. registering new endpoints in the HTDB
Answer: A
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 219
An engineer is designing a BGP network for a large customer. To permit efficient scaling, the BGP domain is split into clusters. Which peering solution should be used between the route reflectors in different clusters for the BGP routes to be propagated appropriately?
- A. The route reflectors should be nonclients with regards to each other.
- B. The route reflectors should not have any kind of BGP peering.
- C. The route reflectors should have peering through another nonclient router.
- D. The route reflectors should be made dents of each other.
Answer: A
Explanation:
The route reflectors should have peering through another nonclient router.
This approach involves using a nonclient route reflector to facilitate peering between route reflectors in different clusters.
The nonclient route reflector serves as a mediator or a transit point for BGP route information between clusters.
This method helps maintain a scalable and hierarchical design because you don't need a full mesh of BGP peerings between route reflectors in different clusters.
NEW QUESTION # 220
Which two techniques improve the application experience in a Cisco SD-WAN design? (Choose two.)
- A. utilizing quality of service
- B. utilizing forward error correction
- C. implementing a stateful application firewall
- D. implementing Cisco Umbrella
- E. implementing AMP
Answer: A,B
Explanation:
https://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/sd-wan/nb-06-cisco- sd-wan-ebook-cte-en.pdf slide 33
NEW QUESTION # 221
What two features are benefits of using GRE tunnels with IPsec over using an IPsec tunnel alone in building-to-building site-to-site VPNs? (Choose two.)
- A. IKE keepalives are unidirectional and sent every ten seconds
- B. allows dynamic routing securely over the tunnel
- C. uses Virtual Tunnel Interface (VTI) to simplify the IPsec VPN configuration
- D. supports non-IP traffic over the tunnel
- E. reduces IPsec headers overhead since tunnel mode is used
Answer: B,D
NEW QUESTION # 222
Refer to the exhibit.
Area 10 is a regular OSPF area and networks 10.1.1.0/24 and 172.16.1.0/24 are internal. Which design provides optimal routing between both networks when the link between routers C and E fails?
- A. Create an OSPF virtual link between routers E and F.
- B. Create a tunnel between routers E and F in area 10.
- C. Move the link between routers C and D to area 10.
- D. Make area 10 a not-so-stubby area.
Answer: C
NEW QUESTION # 223
An engineer must design an addressing plan for a small business using a single /24 network. Each department must have its own subnet. Dragand drop the subnets from the left onto the departments requirements that they fulfill on the right. Not all options are used.
Answer:
Explanation:
NEW QUESTION # 224
Refer to the exhibit. An engineer is designing a Layer 2 campus network. The design must support fast convergence and leverage as much bandwidth as possible between layers.
Distribution switches do support VSS; unfortunately, not all routing protocols are available for use due to license limitations. Which solution must the engineer choose?
- A. MEC
- B. RSTP
- C. ECMP
- D. EtherChannel
Answer: A
Explanation:
Configure StackWise Virtual on distribution layer and then configure MEC.
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9000/nb-06-cat-9k-stack-wp- cte-en.html
NEW QUESTION # 225
Which nonproprietary mechanism can be used to automate rendezvous point distribution in a large PIM domain?
- A. Auto-RP
- B. BSR
- C. Static RP
- D. Embedded RP
Answer: B
NEW QUESTION # 226
Drag and drop the characteristics from the left onto the telemetry mode they apply to on the right.
Answer:
Explanation:
NEW QUESTION # 227
An engineer must propose a solution for a campus network that includes the capability to create multiple Layer
3 virtual networks. Each network must have its own addressing structure and routing table for data forwarding.
The solution must be scalable to support hundreds of virtual networks and allow simple configuration and management with minimal administrative overhead. Which solution does the engineer recommend?
- A. multihop MPLS core
- B. hop-by-hop EVN
- C. multihop IPsec tunneling
- D. hop-by-hop VRF-Lite
Answer: B
Explanation:
Section: WAN for Enterprise Networks
NEW QUESTION # 228 
Refer to the exhibit. An engineer Is designing a multicampus Layer 3 Infrastructure using EIGRP as the routing protocol. The design must provide quick replies to queries In the event of a downlink, prevent unnecessary queries, and ensure that traffic does not unnecessarily transit the access layer. Which two actions must the engineer take for the network design? (Choose two.)
- A. Configure access layer switches to summarize routes to the distribution layer.
- B. Configure distribution layer switches to summarize routes to the core layer.
- C. Configure core layer switches as stub routers.
- D. Configure access layer switches as stub routers.
- E. Configure access layer and core layer switches as stub routers.
Answer: B,D
NEW QUESTION # 229
Refer to the exhibit.
Refer to the exhibit. A network engineer must design a BGP solution based on:
The route reflector must have one or more direct physical connections to the core routers (R3 and R4).
The route reflector must have full redundancy and avoid a single point of failure.
R2 to R1 link utilization is 90%. and the remaining links are less than 50% utilized.
Which two solutions must the design Include? (Choose two.)
- A. Configure R5 to be a client of R3 and R4.
- B. Configure R3 to be a client of R2 and R4.
- C. Configure R2 to be a client of R1 and R4.
- D. Configure R1 to be a client of R2 and R4.
- E. Configure R4 to be a client of R1 and R3.
Answer: A,C
NEW QUESTION # 230
Drag and drop the descriptions from the left onto the corresponding VPN types on the rights.
Answer:
Explanation:
NEW QUESTION # 231
An engineer must design a QoS solution for a customer. The network currently supports data only, but the customer will roll out VoIP and IP video in conjunction with the new QoS solution. The engineer plans to use DiffServ. To ensure priority for voice services, which model must the design include?
- A. 12-class model
- B. 6-class model
- C. 8-class model
- D. 4-class model
Answer: C
NEW QUESTION # 232
An engineer must propose a solution for a campus network that includes the capability to create multiple Layer 3 virtual networks. Each network must have its own addressing structure and routing table for data forwarding. The solution must be scalable to support hundreds of virtual networks and allow simple configuration and management with minimal administrative overhead. Which solution does the engineer recommend?
- A. multihop MPLS core
- B. hop-by-hop EVN
- C. multihop IPsec tunneling
- D. hop-by-hop VRF-Lite
Answer: B
NEW QUESTION # 233 
Refer to the exhibit. EIGRP has been configured on all links. The spoke nodes have been configured as EIGRP stubs, and the WAN links to R3 have higher bandwidth and lower delay than the WAN links to R4.
When a link failure occurs at the R1-R2 link, what happens to traffic on R1 that is destined for a subnet attached to R2?
- A. R1 forwards the traffic to R3, but R3 drops the traffic
- B. R1 has no route to R2 and drops the traffic
- C. R1 forwards the traffic to R3 in order to reach R2
- D. R1 load-balances across the paths through R3 and R4 to reach R2
Answer: C
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION # 234
Refer to the exhibit. An architect must design an IP addressing scheme for a multisite network connected via a WAN transit. The campus site must accommodate 12,000 devices and the branch sites must accommodate 1,000 devices. Which address scheme optimizes network device resources, contains convergence events to the different blocks of the network, and ensures future growth of the network?
- A. * Campus: 10.0.0.0/20
Branch1: 10.0.64.0/21
Branch2: 10.0.128.0/21 - B. * Campus: 10.0.0.0/16
Branchi: 10.255.0.0/20
Branch2: 10.255.16.0/20 - C. * Campus: 10.0.0.0/18
Branch1: 10.0.192.0/21
Branch2: 10.0.200.0/21 - D. * Campus: 10.0.0.0/10
Branch1: 10.64.0.0/10
Branch2: 10.128.0.0/10
Answer: C
NEW QUESTION # 235
Drag and drop the components in a Cisco SD-Access architecture from the left onto their descriptions on the right.
Answer:
Explanation:
NEW QUESTION # 236
An engineer is tasked with designing a dual BGP peering solution with a service provider. The design must meet these conditions:
* The routers will not learn any prefix with a subnet mask greater than /24.
* The routers will determine the routes to include in the routing table based on the length of the mask alone.
* The routers will make this selection regardless of the service provider configuration.
Which solution should the engineer include in the design?
- A. Use an IP prefix list to block the desired networks and apply the IP prefix list to BGP neighbors outbound.
- B. Use a route map and prefix list to block the desired networks, and apply the route map to BGP neighbors outbound.
- C. Use an IP prefix list to block the desired networks and apply the IP prefix list to BGP neighbors inbound.
- D. Use a route map and access list to block the desired networks, and apply the route map to BGP neighbors inbound.
Answer: C
NEW QUESTION # 237
Refer to the exhibit.
Refer to the exhibit. A customer experienced an unexpected network outage when the link between R1 and R2 went down. An architect must design a solution to ensure network continuity in the event the link fails again. Which solution should the design include?
- A. Make R3 an L1L2 router
- B. Make R31 an L1 router.
- C. Make Area 0 L2-only
- D. Make R11 an L2 router.
Answer: A
NEW QUESTION # 238
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