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Cisco 300-420 exam evaluates the candidate's knowledge and skills in designing and implementing advanced routing and switching technologies, security, wireless, and network services. 300-420 Exam aims to test the candidate's ability to design a scalable and robust network infrastructure that can meet the demands of modern-day businesses.

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Practicing with Cisco 300-420 Exam questions will help you to become an expert, Cisco 300-420 and acquire the Cisco 300-420 Certification. Cisco 300-420 Exam Questions allow you to verify your skills as a professional, prepared by Cisco 300-420. You have to pass the Designing Cisco Enterprise Networks 300-420 exam to achieve the Cisco 300-420 certification on the first attempt, which is organized by Cisco.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q28-Q33):

NEW QUESTION # 28
An engineer must design a large Layer 2 domain that contains hundreds of switches and VLANs.
The engineer's primary goals are to:
- Efficiently utilize the bandwidth of all links
- Avoid Layer 2 loops
- Cause minimal impact on switch CPU and memory
Which technology should the engineer include in the design?

A. MST
B. Rapid PVST+
C. RSTP
D. PVST+

Answer: A

Explanation:
MST groups a large amount of VLANS into single instances which lower the amount of CPU and memory utilization.
https://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/24248-
147.html#mst

NEW QUESTION # 29
Refer to the exhibit.

Refer to the exhibit An engineer working for a telecommunication company with an employee ID 4449:30 959 Is calculating STP scalability for switches to ensure that the numbers are below the maximum supported value for STP logical ports How many logical interfaces are active for switch A?

A. 0
B. 1
C. 2
D. 3

Answer: C

NEW QUESTION # 30

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. Implement IP SLA on router R1
B. use IP source routing
C. use a floating static route
D. Implement PBR on router R1
E. Implement Enhanced Object Tracking on router R1

Answer: A,E

NEW QUESTION # 31
Which PIM mode uses a shared tree only?

A. source-specific
B. dense
C. bidirectional
D. sparse

Answer: C

Explanation:
In bidirectional mode, traffic is routed only along a bidirectional shared tree that is rooted at the rendezvous point (RP) for the group https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-tech-oview.html#GUID-51D0D6DF-E7F1-4A0E-8E31-D7ED464DF2AC

NEW QUESTION # 32
Refer to the exhibit.

An architect is designing a network for a customer supporting a Wake-on-LAN application. Which solution must the architect choose?

A. spanning-tree uplinkfast on SW2
B. IP directed-broadcasts on R2
C. IP directed-broadcasts on R1
D. spanning-tree uplinkfast on SW1

Answer: B

Explanation:
Explanation
"IP directed broadcast" must be supported on the last router to the destination subnet. Since the sleeping PC's dont have IP adresses, the machines must be calles awake by broadcast that behaves like an unicast untill they reach the destination network. There the directed broadcast is handled like a proper broadcast to wake all WOL machines.
https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/91672-catl3-wol-vlans.html

NEW QUESTION # 33
......

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