An engineer must peer with an ISP for internet connectivity using BGP, initially, the engineer wants to receive only specific prefixes from the ISP and a default route. However, the solution must provide the flexibility to add prefixes in the future at short notice. The ISP has a two-week change process in place. Which route filtering solution must the engineer employ?

Request a full internet routing table and a default route from the ISP and configure inbound route filtering with a prefix list that permits the default route and required prefixes

Request a limited internet routing table and a default route from the ISP and configure the BGP max-limit to 1 with an access list that permits only the specific internet prefixes and blocked networks

Request only the required prefixes and default route be advertised from the ISO with whitelisted networks

Request a full internet routing table and a default route from the ISP and configure inbound route filtering with a prefix list that permits the default route and required prefixes

Configure outbound route filtering on the enterprise and ISP so that the enterprise tell the ISP which prefixes are required

Refer to Exhibit. Refer to the exhibit A customer wants to adopt a dynamic site-to-site VPN solution to secure communication for VoIP, video, and FTP traffic between the remote branches and the headquarters.The customer also wants the branches to communicate directly, thereby reducing traffic at the headquarters location. The solution must consider that the branch routers are limited in available memory. Which VPN solution meets these requirements?

DMVPN Phase 3 Hub and Spoke design

DMVPN Phase 2 Hub and Spoke design

DMVPN Phase 3 Hub and Spoke design

DMVPN Phase 1 Hub and Spoke design

DMVPN Phase 3 Hierarchical design

An engineer must design a routing solution for a company that is single-homed to an ISP. The company's goal is to run BGP between the CE and the PE devices. To support running BGP, the company obtained a public AS number and IP subnet from ARIN. Which solution must the engineer select?

• The ISP announces the customer public IP subnet.• The ISP announces the partial BGP table to the customer.

• The customer announces the public IP subnet to the ISP• The ISP announces the default route to the customer.

• The customer announces the public IP subnet to the ISP• The ISP announces the BGP table to the customer

• The ISP announces the customer public IP subnet.• The ISP announces the partial BGP table to the customer.

• The customer announces the default route to the ISP• The ISP announces the default route to the customer

Which function do reverse path forwarding mechanisms perform in a multicast deployment?

They prevent loops and duplicate packets.

They notify the upstream router of multicast traffic.

They send PIM prune message toward multicast sources.

They eliminate overlapping multicast addresses

They prevent loops and duplicate packets.

Refer to Exhibit. 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.)

Configure distribution layer switches to summarize routes to the core layer.

Configure access layer switches as stub routers.

Configure core layer switches as stub routers.

Configure distribution layer switches to summarize routes to the core layer.

Configure access layer switches as stub routers.

Configure access layer and core layer switches as stub routers.

Configure access layer switches to summarize routes to the distribution layer.

Refer to Exhibit. Refer to the exhibit. An architect is designing a hierarchical ISIS solution for a customer with these requirements:Routers will double In all areas within the next 24 months.Link flaps within areas 20 and 30 must not impact the backbone area.Traffic originating from A201 and A302 routers must connect to application servers in the backbone.Which design must the architect select?

C201 Level 1/2, A301 Level 1/2 and A102 Level 1/2

C101 Level 1/2. A201 Level 1, and A101 Level 2

C102 Level 2. A202 Level 2, and A102 Level 1

C302 Level 2. A302 Level 1/2. and A101 Level 2

Which WAN connectivity technology is optimal for edge computing compared to others and why?

Due to low latency, high bandwidth, and closest proximity to the user. 4G/5G connectivity is the optimal WAN technology for edge computing compared to L3 VPN MPLS connectivity, which offers native separation and security with close proximity to the data center.

Due to high bandwidth, separation and security, and proximity to the data center network. DWDM Is the optimal WAN technology lor edge computing compared to 4G/5G connectivity, which offers native separation and security with close proximity to the data center.

Due to low latency, high bandwidth, and closest proximity to the user, L3 VPN MPLS connectivity is the optimal WAN technology for edge computing compared to 4G/5G connectivity, which offers native separation and security with close proximity to the data center.

Due to low cost, high bandwidth, low latency, and closest proximity to the edge of the network, Mero Ethernet is the optimal WAN technology for edge computing compared to MPLS, which offers native separation and security with close proximity to the data center.

What is the purpose of a TLOC extension in a Cisco SD-WAN network fabric?

to facilitate WAN Edge router redundancy within a site

to identify the physical interface where a WAN Edge router connects to the WAN transport network

to expand the number of colors that are potentially applied to a network transport interface

to aggregate multiple physical interfaces into a single logical Interface

Refer to Exhibit. Refer to the exhibit. A network engineer with an employee ID: 4384:99:754 must design a BGP solution based on these conditions:Traffic sessions occur between the branches and the data center.Branch B has limited resources to process routing updates.HQ must filter out all prefixes from branch A to R4.Which outbound route filtering (ORF) solution must the engineer choose?

Use a prefix list with the 10.10.10.0/24 subnet for ORF on R2

Use a prefix list with the 192.168.10.0/24 subnet for ORF on R4.

Use a prefix list with the 10.10.10.0/24 subnet for ORF on R2

Use a prefix list with the 10.10.10.0/24 subnet for ORF on R5.

Use a prefix list with the 192.168.10.0/24 subnet for ORF on R2.

Refer to Exhibit. Refer to the exhibit. An engineer Is designing a redistribution solution for a customer. The customer recently acquired another company and decided to integrate the new network running RlPv1 with the company's existing network. Which redistribution technique must the engineer select to ensure the multipoint two-way redistribution does not cause routing loops?

distribute-lists outbound under the RIPv1 process denying EIGRP learned prefixes

distribute-lists inbound under the EIGRP process denying RIPv1 learned prefixes

distribute-lists outbound under the EIGRP process denying RIPv1 learned prefixes

distribute-lists outbound under the RIPv1 process denying EIGRP learned prefixes

distribute-lists inbound under the RIPv1 process denying EIGRP learned prefixes

Refer to Exhibit. Refer to the exhibit. An architect must design a solution to connect bank site A with bank site B and support:network operation center monitoring end-to-end L3VPN and L2VPN traffic company adding thousands of routes in the next two yearsWhich two BGP solutions must the design include? (Choose two.)

Establish full mesh IBGP peering with ail routers in different IGP domains.

Transport site routes using a BGP VPNv4 address family on the PE routers.

Establish full mesh IBGP peering with ail routers in different IGP domains.

Redistribute different IGP domain routes in a BGP IPv4 routing instance.

Transport site routes using a BGP VPNv4 address family on the PE routers.

Apply BGP policies on all routers to filter out ABR and PE loopback IP addresses.

Connect multiple IGP'LDP domains using a BGP IPv4 unicast family on the ABR.

Refer to 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.)

Configure R2 to be a client of R1 and R4.

Configure R5 to be a client of R3 and R4.

Configure R1 to be a client of R2 and R4.

Configure R2 to be a client of R1 and R4.

Configure R3 to be a client of R2 and R4.

Configure R4 to be a client of R1 and R3.

Configure R5 to be a client of R3 and R4.

Which function does the Cisco SD-Access intermediate node perform?

Route and transport IP traffic.

Act as LISP proxy tunnel router.

Route and transport IP traffic.

Act as an anycast Layer 3 gateway.

Map users to a virtual network.

In a multicast network, which condition must be met for an RPF check to be performed on the RP address'?

The PIM router or multilayer switch has a shared-tree state

The PIM DM device receives a multicast packet and has no directly connected members

The PIM router or multilayer switch has a shared-tree state

The PIM router or multilayer switch has a source-tree state

The PIM DM device receives a multicast packet and has no directly connected PIM neighbor

How does a model-driven telemetry dial-out approach function?

The device initiates a session to the collector and negotiates a subscription.

The device initiates a session to the collector based on the subscription.

The collector initiates a session to the device and subscribes to data to be streamed.

The collector Initiates a session to the device and gets the data of a previously defined subscription.

The device initiates a session to the collector and negotiates a subscription.

Prior to establishing full-mesh iPsec tunnels in a typical Cisco SD-WAN deployment, which mechanism do WAN Edge routers use to exchange Key information for data plane encryption?

They use vSmart controllers as key exchange servers.

They use vManage as a key exchange server.

They use IKEv2 when exchanging keys with each other.

They use vBond as a key exchange server.

How do IETF. OpenConfig and Cisco nativo YANG models differ when used to configuro the same feature on an infrastructure device?

OpenConfig models are more comprehensive than IETF.

Cisco native models are less comprehensive than OpenConfig.

Cisco native models are less comprehensive than IETF.

IETF models are more comprehensive than OpenConfig.

Refer to the exhibit. Refer to the exhibit A customer requires maximum uptime for the data plane between R1 and R3 running OSPF Which solution must the design include for high availability if the routing process on R2 requires maintenance?

nonstop forwarding on R1 and R3

graceful restart on all routers

An engineer is designing a WAN solution for a customer with teams in different branch locations that need to communicate The teams also need to access enterprise applications hosted in the data center and the cloud The customer also must provide guests with connectivity to the internet only,and the internet gateway is located in the data center Which solution must the engineer choose?

MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests

WAN connectivity from a different service provider for guests

firewall placed in data center that fitters any traffic from guests

MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests

MPLS Layer 3 VPN with a separate VRF for each branch location

Refer to the exhibit. Refer to the exhibit. A customer has two eBGP peerings from a single CE router toward two service providers. The customer has hired an architect to design a solution to ensure certain traffic enters the customer's network through interface g¡g0/0. Which solution must the architect include in the design?

Advertise a lower MED value toward the less preferred service provider.

Prepend additional AS on the AS path toward the preferred service provider.

Break aggregated routes into longer prefixes and advertise to the preferred service provider.

Set a higher local preference to the preferred service provider path.

Cisco 300-420 Practice Test 6 - Free Online Exam Prep & Questions

DRAG DROP

Drag and drop the steps WAN Edge performs when on-boarded into the Cisco SD-WAN overlay from the left into the order they are completed on the right.

Become a Premium Member for full access

Unlock Premium Member

Cisco 300-420 Practice Test 6

Question

Cisco 300-420 Practice Tests

Practice Tests