Cisco 300-420 Online Practice Questions and Exam Preparation

Cisco 300-420 Online Questions & Answers

• Question 91:

  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. 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.
  B. 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.
  C. 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.
  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.
  A. 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.

• Question 92:

  An engineer must design a multicast network for a financial application. Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better scale routing tables, the design must not use source trees. Which multicast protocol satisfies these requirements?

  A. PIM-SSM
  B. PIM-SM
  C. MSDP
  D. BIDIR-PIM
  D. BIDIR-PIM

• Question 93:

  Refer to the exhibit.

  

  A customer has two eBGP peerings from a single CE router toward two service providers. The customer has hired an architect to design a solution to ensure certain traffic enters the customer's network through interface gig0/0. Which solution must the architect include in the design?

  A. Advertise a lower MED value toward the less preferred service provider.
  B. Prepend additional AS on the AS path toward the preferred service provider.
  C. Break aggregated routes into longer prefixes and advertise to the preferred service provider.
  D. Set a higher local preference to the preferred service provider path.
  A. Advertise a lower MED value toward the less preferred service provider.

• Question 94:

  Refer to the exhibit.

  

  An architect designs a BGP policy for a customer that requires load sharing of the links that connect with the upstream service provider. The customer has these requirements:

  1.The inbound traffic destined to network 10 1 1.0/24 must transit the R3-R1 link, and if the link fails, all inbound traffic must transit the R4-R2 link.

  2.The inbound traffic destined to network 10 1 2 0/24 must transit the R4-R2 link and if the link fails, all inbound traffic should transit the R3-R1 link.

  Which solution must the architect choose?

  A. ?R1 must announce prefix 10.1.1.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512 ?R2 must announce prefix 10.1.2.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512
  B. ?R1 must announce prefix 10.1.2.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512 ?R2 must announce prefix 10.1.1.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512
  C. ?R1 must announce prefix 10.1.2.0/24 with a community attribute 64513:300 and prefix 10.1.1.0/24 with a community attribute 64513 200 ?R2 must announce prefix 10.1.2.0/24 with a community attribute 64513 200 and prefix 10.1.1.0/24 with a community attribute 64513:300
  D. ?R1 must announce prefix 10.1.2.0/24 with a community attribute 64513:200 and prefix 10.1.1.0/24 with a community attribute 64513:300 ?R2 must announce prefix 10.1.2.0/24 with a community attribute 64513 300 and prefix 10.1.1.0/24 with a community attribute 64513:200
  B. ?R1 must announce prefix 10.1.2.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512 ?R2 must announce prefix 10.1.1.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512

• Question 95:

  What statement is true regarding the current time in Enterprise Networking history?

  A. advent of IoT
  B. technology pace of change
  C. pervasive use of mobile devices
  D. advent of cloud computing
  B. technology pace of change

• Question 96:

  What is one function of the vSmart controller in an SD-WAN deployment?

  A. orchestrates vEdge and cEdge connectivity
  B. responsible for the centralized control plane of the SD-WAN network
  C. provides centralized network management and a GUI to monitor and operate the SD-WAN overlay
  D. provides a data-plane at branch offices to pass traffic through the SD-WAN network
  B. responsible for the centralized control plane of the SD-WAN network

• Question 97:

  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. GLBP
  B. IRDP
  C. VRRP
  D. HSRP
  A. GLBP

• Question 98:

  Which PIM mode uses a shared tree only?

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

• Question 99:

  Which design consideration must be made when using IPv6 overlay tunnels?

  A. Overlay tunnels that connect isolated IPv6 networks can be considered a final IPv6 network architecture.
  B. Overlay tunnels should only be considered as a transition technique toward a permanent solution.
  C. Overlay tunnels can be configured only between border devices and require only the IPv6 protocol stack.
  D. Overlay tunneling encapsulates IPv4 packets in IPv6 packets for delivery across an IPv6 infrastructure.
  B. Overlay tunnels should only be considered as a transition technique toward a permanent solution.

• Question 100:

  DRAG DROP

  Drag and drop the properties from the left onto the protocols they describe on the right.

  Select and Place: