Free CCNP Enterprise 300-420 Ultimate Study Guide (Updated 151 Questions)
Get to the Top with 300-420 Practice Exam Questions
Know about the test theme of Cisco 300-420 Exam
- Format: Multiple choices, multiple answers
- Language: English, Japanese
- Number of questions: 65-75
- Passing score: 70%
- Length of Examination: 90 minutes
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NEW QUESTION 27
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 the same IS-IS NET value for each campus, and configure internal campus routers with Level 1/ Level 2 routing.
- B. 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.
- 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 from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
- E. Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.
Answer: D,E
NEW QUESTION 28
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 existing branch office as a temporary measure. The new branch office is assigned to area 2. Which OSPF configuration enables all three locations to exchange routes?
- A. A virtual link must be configured between the new branch office and HQ
- B. The existing branch office must be configured as a stub area
- C. A sham link must be configured between the new branch office and HQ
- D. The new branch office must be configured as a stub area
Answer: A
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION 29
Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)
- A. use IP source routing
- B. Implement Enhanced Object Tracking on roster R1
- C. Implement IP SLA on router R1
- D. Implement PBR on router R1
- E. use a floating static route
Answer: B,C
NEW QUESTION 30
An infrastructure team is concerned about the shared memory utilization of a device, and for this reason, they need to monitor the device state. Which solution limits impact on the device and provides the required data?
- A. static telemetry
- B. IPFIX
- C. periodic subscription
- D. on-change subscription
Answer: D
NEW QUESTION 31
Which two techniques improve the application experience in a Cisco SD-WAN design? (Choose two.)
- A. utilizing quality of service
- B. utilizing forward error correction
- C. implementing AMP
- D. implementing Cisco Umbrella
- E. implementing a stateful application firewall
Answer: A,B
NEW QUESTION 32
The customer solution requires QoS to support streaming multimedia over a WAN. An architect chooses to use Per-Hop Behavior. Which solution should the engineer use to of mark traffic traveling between branch sites?
- A. LLQ with DSCP EF
- B. CBWFQ with DSCP AF2
- C. CBWFQ with DSCP AF3
- D. LLQ with DSCP AF4
Answer: A
NEW QUESTION 33
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. shaping
- B. bursting
- C. violating
- D. conforming
- E. marking
Answer: A,E
Explanation:
Section: Network Services
NEW QUESTION 34
Which two techniques improve the application experience in a Cisco SD-WAN design? (Choose two.) utilizing forward error correction
- A. utilizing quality of service
- B. implementing AMP
- C. implementing Cisco Umbrella
- D. implementing a stateful application firewall
Answer: C,D
NEW QUESTION 35
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?
- A. Reduce the default EIGRP hello interval and hold time
- B. Summarize the access layer networks from each access layer switch toward the aggregation layer
- C. Run BFD on the inter links between EIGRP neighbors.
Answer: C
NEW QUESTION 36
Drag and drop the descriptions from the left onto the corresponding VPN types on the rights.
Answer:
Explanation:
NEW QUESTION 37
Which feature must be incorporated into the campus LAN design to enable Wake on LAN?
- A. DHCP Snooping on layer 2 devices
- B. dynamic ARP Inspection Snooping on layer 2 devices
- C. proxy ARP on layer 3 devices
- D. directed broadcasts on layer 3 devices
Answer: D
NEW QUESTION 38
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?
- A. Make this router a DIS for each of the interfaces
- B. Disable the default behavior of advertising the default route on the L1/L2 router
- C. Configure each interface as either L1 or L2 circuit type
- D. Configure the router to be either L1 or L2
Answer: C
NEW QUESTION 39
When a first hop redundancy solution is designed, which protocol ensures that load balancing occurs over multiple routers using a single virtual IP address and multiple virtual MAC addresses?
- A. HSRP
- B. IRDP
- C. VRRP
- D. GLBP
Answer: D
NEW QUESTION 40
Refer to the exhibit. Where must an architect plan for route summarization for the topology?
- A. from the aggregation toward the access and the access toward the aggregation
- B. from the core toward the aggregation and the aggregation toward the core
- C. from the aggregation toward the core and the aggregation toward the access
Answer: C
NEW QUESTION 41
Drag and drop the characteristics from the left onto the Yang model they describe on the right.
Answer:
Explanation:
NEW QUESTION 42
Which component is part of the Cisco SD-Access overlay architecture?
- A. leaf node
- B. Cisco DNA Center
- C. border node
- D. spine node
Answer: B
NEW QUESTION 43
A company is planning to open two new branches and allocate the 2a01:c30:16:7009::3800/118 IPv6 network for the region. Each branch should have the capacity to accommodate maximum of 200 hosts. Which two networks should the company use? (Choose two.)
- A. 2a01:0c30:0016:7009::3b00/121
- B. 2a01:0c30:0016:7009::3a80/121
- C. 2a01:0c30:0016:7009::3a00/120
- D. 2a01:0c30:0016:7009::3b00/120
- E. 2a01:0c30:0016:7009::3c00/120
Answer: C,D
NEW QUESTION 44
A network solution is being designed for a company that connects to multiple Internet service providers.
Which
Cisco proprietary BGP path attribute will influence outbound traffic flow?
- A. Weight
- B. Local Preference
- C. MED
- D. Community
- E. AS Path
Answer: A
NEW QUESTION 45
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 the area 1 routers part of area 0.
- B. Make area 1 a standard OSPF area.
- C. Make area 1 a stub.
- D. Make area 1 a NSSA.
Answer: C
NEW QUESTION 46
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 CS1 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to CIass3.
- 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 CS2 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to Class3
Answer: A
NEW QUESTION 47
Which two tasks must you perform to configure DHCP snooping on a device? (Choose two.)
- A. Enable DHCP snooping globally
- B. Enable VRF support for the DHCP relay agent
- C. Enable DHCP snooping on the VLAN
- D. Enable DHCP option 82
- E. Enable DHCP packet validation on the device
Answer: A,C
Explanation:
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/4_1/nx-os/security/configuration/ guide/sec_nx-os-cfg/sec_dhcpsnoop.html
NEW QUESTION 48
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.)
- A. dynamic spoke-to-spoke tunnels
- B. support for anycast gateway
- C. greater scalability
- D. lower traffic overhead
- E. support for AES 256-bit encryption
Answer: A,C
Explanation:
Section: WAN for Enterprise Networks
NEW QUESTION 49
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. shaping
- B. bursting
- C. violating
- D. conforming
- E. marking
Answer: A,E
NEW QUESTION 50
A customer with an IPv4 only network topology wants to enable IPv6 connectivity while preserving the IPv4 topology services. The customer plans to migrate IPv4 services to the IPv6 topology, then decommission the IPv4 topology. Which topology supports these requirements?
- A. NAT64
- B. dual stack
- C. 6to4
- D. 6VPE
Answer: B
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION 51
The implementations group has been using the test bed to do a 'proof-of-concept' that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing scheme, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 address.
Use the supported commands to isolated the cause of this fault and answer the following questions.
The fault condition is related to which technology?
- A. IPv4 OSPF Routing
- B. IPv6 OSPF Routing
- C. NTP
- D. BGP
- E. IPv4 OSPF Redistribution
- F. IPv4 layer 3 security
- G. IP NAT
Answer: G
Explanation:
On R1 we need to add the client IP address for reachability to server to the access list that is used to specify which hosts get NATed.
NEW QUESTION 52
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