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Cisco 300-420 - Designing Cisco Enterprise Networks (ENSLD)

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Total 339 questions

Refer to the exhibit. An architect is designing an ISIS solution with these requirements:

    The backbone area will grow to 50 routers in the next 12 months.

    Routers A1 and A2 must avoid suboptimal routing.

    Summarization and route-leaking should be allowed in areas 49.002 and 49.003.

Which solution must the architect select?

A.

area 49.000 L1, area 49.001 L2, area 49.002 L2, and area 49.003 L2

B.

area 49.000 L1, area 49.001 L1, area 49.002 L2, and area 49.003 L2

C.

area 49.000 L2. area 49.001 L1, area 49.002 L1, and area 49.003 L1

D.

area 49.000 L2. area 49.001 L2, area 49.002 L1, and area 49.003 L1

Refer to the exhibit.

C0FD9 F48C9ACDC725EA850EC2476EE1E

An architect must design a solution that uses the direct link between R1 and R2 for traffic from 10.10.10.0/24

toward network 10.10.20.0/24. Which solution should the architect include in the design?

A.

Configure the OSPF cost of the link to a value lower than 30.

B.

Lower the Administrative Distance for OSPF area 0.

C.

Place the link into area 2 and install a new link between R1 and R2 in area 0.

D.

Configure the link to provide multiarea adjacency.

Which security functionality does gRPC provide?

A.

implementing secure server-client tunnels with RSA 20*8 cipher encryption

B.

mandatory encryption of data at rest using the AES and RSA protocols

C.

enabling RC6 data-level encryption with CRC check

D.

supporting secure communication between network devices and control systems using TLS

Which two border nodes are available in the Cisco SD-Access architecture? (Choose two.)

A.

extended border

B.

edge border

C.

internal border

D.

anywhere border

E.

intermediate border

An architect is working on a design to connect a company's main site to several small to medium-sized remote branches. The solution must include redundant WAN links, but the customer has a limited budget and wants the ability to increase the link speed easily in the future. QoS will not on the branch routers so there is no need for consistent end-to-end QoS. Which solution does the architect propose?

A.

dual-homed WAN MPLS with single edge router

B.

dual-homed Internet with a single edge router running a site-to-site VPN topology

C.

dual-homed WAN MPLS and Internet links via dual edge routers

D.

dual-homed Internet with dual edge routers running a hub-and-spoke VPN topology

Drag and drop the description from the left onto the corresponding WAN connectivity types and categories on the right.

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?

A.

DMVPN Phase 2 Hub and Spoke design

B.

DMVPN Phase 3 Hub and Spoke design

C.

DMVPN Phase 1 Hub and Spoke design

D.

DMVPN Phase 3 Hierarchical design

What are the two purpose of the RPF check in multicast routing?

A.

to ensure that multicast packets are forwarded if they arrived on the interface used to route traffic back to the source address

B.

to ensure that multicast packets are forwarded if they arrived on the interface used to route traffic to the destination address

C.

to ensure that multicast packets, no matter the interface they arrived on. are forwarded out all interfaces

D.

to ensure that multicast packets are dropped if they arrived on the interface used to route traffic to the destination address

E.

to ensure that multicast packets are dropped if they arrived on the interface used to route traffic back to the source address

An engineer is designing a BGP solution supporting a VXLAN environment over a Layer 3 IPv4 network fabric with these requirements

    provide Layer 2 adjacency

    allow VM migration of workloads between sites

    IGP is OSPF

Which BGP address family must the engineer choose?

A.

VPNv4

B.

IPv4 unicast

C.

L2VPN VPLS-VPWS

D.

L2VPNEVPN

Which design element should an engineer consider when multicast is included in a Cisco SD-Access architecture?

A.

PIM SSM must run in the underlay.

B.

Multicast clients reside in the underlay, and the multicast source is outside the fabric or

in the overlay.

C.

Rendezvous points must be used in a PIM SSM deployment.

D.

Multicast traffic is transported in the overlay and the EID space for wired and wireless clients.