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? (Choose two.)

support for AES 256-bit encryption

What is a benefit of using VRRPv3 as compared to VRRPv2?

VRRPv3 supports stateful switchover

A customer is discussing QoS requirements with a network consultant. The customer has specified that end-to-end path verification is a requirement. Which QoS solution meets this requirement?

IntServ model with RSVP to support the traffic flows

DiffServ model with PHB to support the traffic flows

marking traffic at the access layer with DSCP to support the traffic flows

marking traffic at the access layer with CoS to support the traffic flows

Which design consideration should be observed when EIGRP is configured on Data Center switches?

Perform manual summarization on all Layer 3 interfaces to minimize the size of the routing table.

Prevent unnecessary EIGRP neighborships from forming across switch virtual interfaces.

Lower EIGRP hello and hold timers to their minimum settings to ensure rapid route reconvergence.

Configure multiple EIGRP autonomous systems to segment Data Center services and applications.

Which design consideration must be made when using IPv6 overlay tunnels?

Overlay tunnels should only be considered as a transition technique toward a permanent solution.

Overlay tunnels that connect isolated IPv6 networks can be considered a final IPv6 network architecture.

Overlay tunnels should only be considered as a transition technique toward a permanent solution.

Overlay tunnels can be configured only between border devices and require only the IPv6 protocol stack.

Overlay tunneling encapsulates IPv4 packets in IPv6 packets for delivery across an IPv6 infrastructure.

What is an advantage of designing an out-of-band network management solution?

In the event of a production network outage, network devices can still be managed.

There is no separation between the production network and the management network.

In the event of a production network outage, it can be used as a backup network path.

It is less expensive than an in-band management solution

Which consideration must be taken into account when using the DHCP relay feature in a Cisco SDAccess Architecture?

DHCP Option-82 must be enabled to map the circuit IP option to the access fabric node where the DHCP discover originated.

DHCP-relay must be enabled on fabric edge nodes to provide the correct mapping of DHCP scope to the local anycast gateway.

A DHCP server must be enabled on the border nodes to allow subnets to span multiple fabric edges.

DHCP servers must support Cisco SD-Access extensions to correctly assign IPs to endpoints in an SD-Access fabric with anycast gateway.

DHCP Option-82 must be enabled to map the circuit IP option to the access fabric node where the DHCP discover originated.

Which feature must be incorporated into the campus LAN design to enable Wake on LAN?

directed broadcasts on layer 3 devices

dynamic ARP Inspection Snooping on layer 2 devices

directed broadcasts on layer 3 devices

DHCP Snooping on layer 2 devices

Which function are fabric intermediate nodes responsible for in an SD-Access Architecture?

transporting IP packets between edge nodes and border nodes

encapsulating user traffic in a VXLAN header including the SGT

registering new endpoints in the HTDB

transporting IP packets between edge nodes and border nodes

What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)

It decreases latency to applications hosted by public cloud service provider.

It alleviates network traffic on MPLS circuits.

It decreases latency to applications hosted by public cloud service provider.

It decreases latency on Internet circuits.

It increases the speed of delivery of site deployments through zero-touch provisioning.

It increases the total available bandwidth on Internet circuits.

It alleviates network traffic on MPLS circuits.

Which routes does the overlay management protocol advertise in an SD-WAN overlay?

primary, backup, and load-balanced

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 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?

R1 has no route to R2 and drops the traffic

R1 load-balances across the paths through R3 and R4 to reach R2

R1 forwards the traffic to R3, but R3 drops the traffic

R1 forwards the traffic to R3 in order to reach R2

A company is using OSPF between its HQ location and a branch office. HQ is assigned area 0 and the branch office is assigned area 1. The company purchases a second branch office, but due to circuit delays to HQ, it decides to connect the new branch office to the creating branch office as a temporary measure. The new branch office is assigned area 2. Which OSPF configuration enables all three locations to exchange routes?

A virtual link must be configured between the new branch office and HQ

The existing branch office must be configured as a stub area

A virtual link must be configured between the new branch office and HQ

A sham link must be configured between the new branch office and HQ

The new branch office must be configured as a stub area

What is one function of the vSmart controller in an SD-WAN deployment?

responsible for the centralized control plane of the SD-WAN network

orchestrates vEdge and cEdge connectivity

responsible for the centralized control plane of the SD-WAN network

provides centralized network management and a GUI to monitor and operate the SD-WAN overlay

provides a data-plane at branch offices to pass traffic through the SD-WAN network

When IPsec VPNs are designed, what is a unique requirement if support for IP Multicast is required?

encapsulation of traffic with GRE or VTI

IPsec forwarding using transport mode

additional bandwidth for headend

IPsec forwarding using tunnel mode

How do endpoints inside an SD-Access network reach resources outside the fabric?

Fabric borders use VRFs to map VNs to VRFs

a VRF fusion router is used to map resources in one VN to another VN

Fabric borders use VRFs to map VNs to VRFs

SD-Access transit links are used to transport encapsulated traffic from one fabric to another

A fabric edge is used to de-encapsulate VXLAN traffic to normal IP traffic then transported over the outside network

Which feature is required for graceful restart to recover from a processor failure?

Bidirectional Forwarding Detection

What are two valid scaling techniques when an EIGRP network is designed that consists of more than 1000 routers? (Choose two.)

Use structured hierarchical topology with route summarization

Implement multiple EIGRP autonomous systems

Use structured hierarchical topology with route summarization

Use the distribute-list command to filter routes

Modify delay parameters on the links

Implement multiple EIGRP autonomous systems

Refer to the exhibit. Which solution decreases the EIGRP convergence time?

Enable stub routing on the spokes

A router running ISIS is showing high CPU and bandwidth utilization. An engineer discovers that the router is configured as L1/L2 and has L1 and L2 neighbors. Which step optimizes the design to address the issue?

Configure each interface as either L1 or L2 circuit type

Make this router a DIS for each of the interfaces

Disable the default behavior of advertising the default route on the L1/L2 router

Configure the router to be either L1 or L2

Configure each interface as either L1 or L2 circuit type

Refer to the exhibit. An engineer must optimize the traffic flow of the network. Which change provides a more efficient design between the access and the distribution layer?

Reconfigure the distribution switch A to become the HSRP Active

Add a link between access switch A and access switch B

Reconfigure the distribution switch A to become the HSRP Active

Change the link between distribution switch A and distribution switch B to be a routed link

Create an EtherChannel link between distribution switch A and distribution switch B

Cisco 300-420 Practice Test 1 - Free Online Exam Prep & Questions

Question 1 / 40

Which solution allows overlay VNs to communicate with each other in an SD-WAN Architecture?

External fusion routers can be used to map VNs to VRFs and selectively route traffic between VRFs.

GRE tunneling can be configured between fabric edges to connect one VN to another.

SGTs can be used to permit traffic from one VN to another.

Route leaking can be used on the fabric border nodes to inject routes from one VN to another.

Comment (0)

Cisco 300-420 Practice Test 1

Question

Cisco 300-420 Practice Tests

Practice Tests