Cisco 300-420 Certification Exam Dumps with 341 Practice Test Questions
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NEW QUESTION # 185
An architect is designing a connectivity solution for a customer's two small branch offices. The customer wants a cost-effective design, no routing overload, and some down time during the year is acceptable. Which connectivity solution must the architect choose?
- A. dual multihomed
- B. single multihomed
- C. single-homed
- D. dual-homed
Answer: C
NEW QUESTION # 186
An engineer must design an in-band management solution for a customer with branch sites. The solution must allow remote management of the branch sites using management protocols over an MPLS WAN. Queueing is implemented at the remote sites using these classes:
How must the solution prioritize the management traffic over the WAN?
- A. Mark the traffic with DSCP EF and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth available to Class2.
- B. Mark the traffic with DSCP CS2 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to Class3
- C. Mark the traffic with DSCP CS6 and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth available to Class2
- D. Mark the traffic with DSCP CS1 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to CIass3.
Answer: A
NEW QUESTION # 187
Refer to the exhibit.
Refer to the exhibit. An engineer is designing an OSPF network for a client. Requirements dictate that the routers in Area 1 should receive all routes belonging to the network, including EIGRP, except the ones originated in the RIP domain. Which action should the engineer take?
- A. Make area 1 a stub.
- B. Make area 1 a NSSA.
- C. Make area 1 a standard OSPF area.
- D. Make the area 1 routers part of area 0.
Answer: B
Explanation:
NEW QUESTION # 188
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?
- A. firewall placed in data center that filters any traffic from guests
- B. WAN connectivity from a different service provider for guests
- C. MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests
- D. MPLS Layer 3 VPN with a separate VRF for each branch location
Answer: C
NEW QUESTION # 189
A network engineer must segregate three interconnected campus networks using IS-IS routing.
A two-layer hierarchy must be used to support large routing domains and to avoid more specific routes from each campus network being advertised to other campus network routers automatically.
Which two actions does the engineer take to accomplish this segregation? (Choose two.)
- A. Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.
- B. Assign the same IS-IS NET value for each campus, and configure internal campus routers with Level 1/ Level 2 routing.
- C. Utilize different MTU values for each campus network segment. Level 2 backbone routers must utilize a larger MTU size of 9216.
- D. Designate two IS-IS routers as BDR routers at the edge of each campus, and configure one BDR for all Level 1 routers and one BDR for all Level 2 routers.
- E. Designate two IS-IS routers from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
Answer: A,E
NEW QUESTION # 190
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?
- A. R1 forwards the traffic to R3 in order to reach R2
- B. R1 has no route to R2 and drops the traffic
- C. R1 load-balances across the paths through R3 and R4 to reach R2
- D. R1 forwards the traffic to R3, but R3 drops the traffic
Answer: A
NEW QUESTION # 191
Which option will help build your customers platform during the discovery phase?
- A. detailed design
- B. business case
- C. PO
- D. high-level design
- E. POV report
Answer: B
NEW QUESTION # 192
Refer to the exhibit.
Refer to the exhibit. An architect must design a solution to connect the network behind R3 with the EIGRP network. Which mechanism should be included to avoid routing loops?
- A. summarization
- B. route tags
- C. split-horizon
- D. down bit
Answer: B
NEW QUESTION # 193
An engineer must design an addressing plan for a small business using a single /24 network. Each department must have its own subnet. Drag and 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 # 194
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. multihop IPsec tunneling
- C. hop-by-hop VRF-Lite
- D. hop-by-hop EVN
Answer: C
Explanation:
Table 1 Network Virtualization Technique Comparison Chart
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/Network_Virtualization/sccso lover.html
NEW QUESTION # 195
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.)
- A. conforming
- B. marking
- C. shaping
- D. bursting
- E. violating
Answer: A,E
Explanation:
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645- policevsshape.html
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_plcshp/configuration/xe-17/qos-plcshp-xe-
17-book/qos-plcshp-trfc-plc.pdf
NEW QUESTION # 196
Which Cisco vEdge router offers 20 Gb of encrypted throughput?
- A. Cisco vEdge 2000
- B. Cisco vEdge 100
- C. Cisco vEdge 5000
- D. Cisco vEdge 1000
Answer: C
NEW QUESTION # 197 
Refer to the exhibit. A company has some offices that are connected via dark fiber in New York. A network architect must optimize the network design based on the EIGRP routing protocol. The network has hierarchical addressing between 10 and 12 routers in each office. Routing convergence time must be at the minimum. What must the network architect do to reduce the query range?
- A. Use different EIGRP processes on edge routers.
- B. Configure stub areas on non-edge routers.
- C. Configure route filtering on non-edge routers.
- D. Implement network summarization on edge routers.
Answer: D
NEW QUESTION # 198
Which two BGP features will result in successful route exchanges between eBGP neighbors sharing the same AS number? (Choose two.)
- A. client-to-client reflection
- B. allow-as-in
- C. as-override
- D. advertise-best-external
- E. bestpath as-path ignore
Answer: B,C
NEW QUESTION # 199 
Refer to the exhibit An engineer is designing an OSPF solution with these requirements:
* NMS server will manage R5 and R6.
* Upon failure of R1. all NMS traffic should be routed through R4.
* Upon failure of the link between R5 and R6. all traffic destined for 10.6.6.6 should be routed through R4 Which solution must the engineer choose?
- A. Enable the default-Information originate command with a higher metric on R2 to R1.
- B. Apply static routes on R2 and R3 with IP SLA tracking toward R5 and R6.
- C. Advertise 172.16.1.1 into OSPF process 1 with high cost on R1.
- D. Redistribute OSPF process 1 into process 2 on R1 and R4.
Answer: D
NEW QUESTION # 200
Which two techniques improve the application experience in a Cisco SD-WAN design? (Choose two.)
- A. implementing AMP
- B. implementing a stateful application firewall
- C. utilizing forward error correction
- D. implementing Cisco Umbrella
- E. utilizing quality of service
Answer: C,E
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 # 201
Which WAN connectivity technology is optimal for edge computing compared to others and why?
- A. 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.
- B. 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.
- C. 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.
- D. 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.
Answer: B
NEW QUESTION # 202
Drag and drop the descriptions from the left onto the Cisco SD-WAN component they describe on the right.
Answer:
Explanation:
NEW QUESTION # 203
Refer to the exhibit. A network engineer is designing an OSPF solution to connect a company's remote to a newly provisioned MPLS VPN backbone. Some of the branches have a direct dark fiber connection between each other. The engineer wants to ensure that the dark fibers are used only when the MPLS core is unavailable.
Which solution must the engineer choose?
- A. Sham link
- B. Virtual link
- C. NSSA
- D. Stub area
Answer: A
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/xe-16/iro-xe-16-book/iro-sham-lin
NEW QUESTION # 204
Drag and Drop Question
Drag and drop the Cisco SD-WAN components from the left onto their definitions on the right.
Answer:
Explanation:
NEW QUESTION # 205
Refer to the exhibit. An architect must create a stable and scalable EIGRP solution for a customer. The design must:
* conserve bandwidth, memory, and CPU processing
* prevent suboptimal routing
* avoid any unnecessary queries
Which two solutions must the architect select? (Choose two.)
- A. Stub routing
- B. Route summarization
- C. Prefix lists
- D. Distribute lists
Answer: A
NEW QUESTION # 206
Refer to the exhibit.
A network engineer must improve the current IS-IS environment. The Catalyst switch is equipped with dual supervisors. Each time a stateful switchover occurs, the network experiences unnecessary route recomputation.
Which solution addresses this issue if the upstream router does not understand graceful restart messaging?
- A. Configure ISIS aggressive timers on both devices.
- B. Enable IS-IS remote LFA FRR on both devices.
- C. Enable NSR on the switch.
- D. Enable NSF on the switch.
Answer: D
NEW QUESTION # 207
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 traffic is transported in the overlay and the EID space for wired and wireless clients.
- C. Multicast clients reside in the underlay, and the multicast source is outside the fabric or in the overlay.
- D. Rendezvous points must be used in a PIM SSM deployment.
Answer: B
Explanation:
Multicast traffic is transported in the overlay, in the EID space, for both wired and wireless clients.
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKEWN-2020.pdf
NEW QUESTION # 208
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