cisco 300-420 practice test

Company A recently acquired another company. Users of the newly acquired company must be able to access a server that exists on Company A's network, both companies use overlapping IP address ranges. Which action conserves IP address space and provides access to the server?

• A. Use a single IP address to create overload NAT
• B. Use a single IP address to create a static NAT entry
• C. Build one-to-one NAT translation for every user that needs access
• D. Re-IP overlapping address space in the acquired company

When a network is designed using IS-IS, which two circuit types are supported? (Choose two.)

• A. nonbroadcast multiaccess
• B. multiaccess
• C. point-to-multipoint
• D. nonbroadcast
• E. point-to-point

What are two purposes of the RPF check in multicast routing? (Choose two.)

• A. to ensure that multicast packets are forwarded if they arrived on the interface used to route traffic back to the source address
• B. to ensure that multicast packets are forwarded if they arrived on the interface used to route traffic to the destination address
• C. to ensure that multicast packets are dropped if they arrived on the interface used to route traffic to the destination address
• D. to ensure that multicast packets are dropped if they arrived on the interface used to route traffic back to the source address
• E. to ensure that multicast packets, no matter the interface they arrived on are forwarded out all interfaces

Refer to the exhibit. A network engineer working for a private service provider with an employee ID: 1234:56:789 must design a BGP solution based on:
All traffic originating from AS100 must pass through AS200 to reach the NTP and DHCP server
When a link failure occurs between R3 and R4, traffic must follow the R2-R9 link to reach the NTP and DHCP server

Which solution must the design include?

• A. Routers R3 and R10 advertise an IGP metric into BGP during redistribution in both directions
• B. Router R6 influences the paths of R9 and R11 to the DC with a higher AS-PATH value
• C. Routers R3 and R10 advertise a lower local preference for outgoing traffic and a higher AS-PATH value for incoming traffic
• D. Router R3 applies a local preference of 200 for R1, R2, R9, and R11 routers to reach the data center

A customer plans to adopt distributed QoS in their enterprise WAN. The policy must allow for individual packet marking according to the type of treatment required and for forwarding based on hop-by-hop treatment locally defined on each device. Which technology must the customer select?

• A. CBWFQ
• B. LLQ
• C. Diffserv
• D. IntServ

Refer to the exhibit. The connection between SW2 and SW3 is fiber and occasionally experiences unidirectional link failure. An architect must optimize the network to reduce the change of Layer 2 forwarding loops when the link fails. Which solution should the architect include?

• A. Utilize BPDU filter on SW3.
• B. Utilize root guard on SW1.
• C. Utilize BPDU guard on SW1.
• D. Utilize loop guard on SW2.

An engineer is upgrading a company's main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via
BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?

• A. Tag incoming routes from both ISPs with BGP community no-export.
• B. Lower the MED for updates sent to the secondary ISP.
• C. Use a route-map to prevent all prefixes from being advertised to either ISP.
• D. Modify the local-preference for routes incoming from the primary ISP.

Which two functions are provided by the Cisco SD-WAN orchestration plane? (Choose two.)

• A. centralized provisioning
• B. primary authentication point
• C. NAT traversal facilitation
• D. Zero Touch Provisioning
• E. troubleshooting and monitoring

Refer to the exhibit. An engineer is designing a multicampus Layer 3 infrastructure using EIGRP as the routing protocol. The design must provide quick replies to queries in the event of a downlink, prevent unnecessary queries, and ensure that traffic does not unnecessarily transit the access layer. Which two actions must the engineer take for the network design? (Choose two.)

• A. Configure core layer switches as stub routers.
• B. Configure access layer and core layer switches as stub routers.
• C. Configure distribution layer switches to summarize routes to the core layer.
• D. Configure access layer switches as stub routers.
• E. Configure access layer switches to summarize routes to the distribution layer.

A customer is discussing QoS requirements with a network consultant. The customer has specified that end-to-end path verification is a requirement. Which QoS solution meets this requirement?

• A. IntServ model with RSVP to support the traffic flows
• B. DiffServ model with PHB to support the traffic flows
• C. marking traffic at the access layer with DSCP to support the traffic flows
• D. marking traffic at the access layer with CoS to support the traffic flows