Latest Nov 27, 2024 300-420 Brain Dump A Study Guide with Tips & Tricks for passing Exam [Q195-Q218]

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Latest Nov 27, 2024 300-420 Brain Dump: A Study Guide with Tips & Tricks for passing Exam

300-420 Question Bank: Free PDF Download Recently Updated Questions

Cisco 300-420 certification exam is designed to test the candidate’s knowledge and skills in a variety of areas, including network design, network security, wireless LAN design, and automation. 300-420 exam is a comprehensive test that covers a wide range of topics, and candidates are expected to have a deep understanding of the subject matter.

Cisco 300-420 exam, also known as Designing Cisco Enterprise Networks, is a certification exam focused on designing scalable, secure, and resilient enterprise networks. 300-420 exam is designed for network professionals who are responsible for designing and implementing enterprise networks. Candidates who pass 300-420 exam will gain the knowledge and skills required to design and implement complex enterprise network solutions using Cisco technologies.

QUESTION 195
A network engineer must connect two sites across a public network using a secure tunneling technology that supports multicast traffic. Which technology must be chosen?

IPsec

GRE

PPTP

GRE over IPsec

QUESTION 196
An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported be the traffic policing feature? (Choose two.)

violating

marking

shaping

bursting

conforming

QUESTION 197
Exhibit:

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?

EtherChannel

MEC

RSTP

ECMP

QUESTION 198
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 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

QUESTION 199
A company’s branch location uses redundant routers and links for connectivity to the headquarters. Also, to use the entire available bandwidth, the branch uses a dynamic routing protocol. An architect must design a multicast streaming solution to avoid RPF check failures because of the current network design. Which deployment model must the architect choose?

PIM-BSR

BIDIR-PIM

PIM-SM

PIM-SSM

QUESTION 200
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

greater scalability

support for anycast gateway

lower traffic overhead

dynamic spoke-to-spoke tunnels

QUESTION 201
What does a hierarchical EIGRP design help with? (Choose two.)

Redistribution

Route summarization

Faster convergence

Load balancing

QUESTION 202
How are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?

Fabric edge nodes update the HTDB based on CAPPWAP messaging from the AP

Fabric WLCs update the HTDB as new clients connect to the wireless network

Border nodes first register endpoints and then update the HTDB

Fabric APs update the HTDB with the clients’ ElD and RLOC

QUESTION 203
In a Cisco SD-Access fabric, which node facilities connectivity between the fabric and networks external to the fabric?

intermediate

edge

control plane

border

QUESTION 204
Drag and drop the descriptions from the left onto the categories they apply to on the right.

QUESTION 205
An engineer must use YANG with an XML representation to configure a Cisco IOS XE switch with these specifications:
– IP address 10.10.10.10/27 configured on the interface
GigabitEthernet2/1/0
– connectivity from a directly connected host 10.10.10.1/27
Which YANG data model set must the engineer choose?

QUESTION 206
An engineer must use YANG with an XML representation to configure a Cisco IOS XE switch with these specifications:
IP address 10.10.10.10/27 configured on the interface GigabitEthernet2/1/0 connectivity from a directly connected host 10.10.10.1/27 Which YANG data model set must the engineer choose?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

QUESTION 207
Refer to the exhibit. An engineer is designing a routing solution for a customer. The design must ensure that a failure of network 10.1.0.0/24, 10.1.2.0/24, 10.2.1.0/24, or 10.2.3.0/24 does not impact the core. It also requires fast convergence time during any link failover in the core or access networks.
Which solution must the engineer select?

Add aggregation layer between core and access networks.

Enable graceful restart on routers A and C.

Enable FRR for the connected networks of routers A and C.

Enable summarization on routers A and C.

QUESTION 208
Which control-plane technology allows the same subnet to exist across multiple network locations?

LISP

VXLAN

FabricPath

ISE mobility services

QUESTION 209
Which protocol is deployed through LAN automation to build node-to-node underlay adjacencies in SDA?

IS-IS

LISP

OSPF

VXLAN

QUESTION 210
An engineer is designing an EIGRP network for a small branch site where there is only one Layer 3 router. The engineer wants the router to advertise the local LAN network to remote EIGRP neighbors without sending any unnecessary multicast messages on the local LAN. Which action should the engineer take?

Use a static default route for this site instead of EIGRP

Advertise the local LAN using the network command and the passive-interface feature

Redistribute the local LAN network using the redistribute connected command

Advertise the local LAN subnet as a stub network

QUESTION 211
Refer to the exhibit.

Refer to the exhibit. Which two solutions maximize the use of the links between the core and distribution layers? (Choose two.)

use multiple equal-cost links

use an IGP

use HSRP

use R-PVSTP+

use multiple unequal-cost links

QUESTION 212
Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails.
Which solution should the architect include in the design?

Reduce the default EIGRP hello interval and hold time

Run BFD on the inter links between EIGRP neighbors.

Summarize the access layer networks from each access layer switch toward the aggregation layer

Summarize the access layer networks from the aggregation layer toward the core layer.

QUESTION 213
Which design consideration must be made when dual WAN Edge routers are deployed at a branch site?

Use BGP AS-path prepending to influence egress traffic and use MED to influence ingress traffic from the branch.

HSRP priorities must match the OMP routing policy to prefer one WAN Edge over the other.

Traffic must be symmetrical as it egresses the WAN Edges and returns from remote sites for DPI to function properly.

Configure BFD between WAN Edge routers to detect sub-second link failures.

QUESTION 214
Which two tasks must you perform to configure DHCP snooping on a device? (Choose two.)

Enable DHCP packet validation on the device

Enable DHCP option 82

Enable DHCP snooping on the VLAN

Enable DHCP snooping globally

Enable VRF support for the DHCP relay agent

QUESTION 215

Refer to the exhibit. A customer needs to apply QoS to the network management traffic passing through the GigabitEthernet0/2 interface. All eight queuing classes are in use, so the new requirement must be integrated into the existing policy. Which solution must the customer choose?

Mark traffic to DSCP CS5 and assign it to the SIGNALLING class. Then, baseline existing queue sizes to determine if additional bandwidth can be provisioned to the SIGNALLING class.

Mark the traffic to DSCP CS4 and assign it to the SIGNALLING class. Then, prioritize traffic within the class.

Mark the traffic to DSCP CS6 and assign it to the ROUTING class Then, prioritize traffic within the class.

Mark the traffic to DSCP CS2 and assign it to the ROUTING class Then, baseline existing queue sizes to determine if additional bandwidth can be provisioned to the ROUTING class

QUESTION 216
What is the function of the multicast Reverse Path Forwarding check?

It allows for a loop-free distribution tree from the source to receivers.

It serves as an Auto RP Mapping agent.

It prevents bootstrap messages from reaching all routers.

It is used to discover and announce RP-set information.

QUESTION 217
Refer to the exhibit. An architect is developing a solution to consolidate networks while retaining device redundancy. The routing protocol for the WAN routers must be open standard, ensure high availability, and provide the fastest convergence time.
Which solution must the design include?