Cisco 300-420 Practice Test - Questions Answers, Page 13
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Refer to the exhibit.
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.)
route summarization
prefix lists
distribute lists
stub routing
static redistribution
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?
PVST+
Rapid PVST+
MST
RSTP
An engineer is designing a multicast network for a financial application Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better routing tables, the design must not use source trees. Which multicast protocol satisfies these requirements?
BIRDIR-PIM
PIM-SM
MSDP
PIM-SSM
An organization plans to deploy multicast across two different autonomous systems. Their solution must allow RPs to:
•discover active sources outside their domain
•use the underlying routing information for connectivity with other RPs
•announce sources joining the group
Which solution supports these requirements?
MSDP
SSM
PIM-SM
PIM-DM
Refer to the exhibit.
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?
Run BFD on the inter links between EIGRP neighbors.
Summarize the access layer networks from each access layer switch toward the aggregation layer.
Reduce the default EIGRP hello interval and hold time.
Summarize the access layer networks from the aggregation layer toward the core layer.
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?
LLQ with DSCP EF
CBWFQ with DSCP AF3
CBWFQ with DSCP AF2
LLQ with DSCP AF4
Refer to the exhibit.
Refer to the exhibit. An architect must design a solution to connect the two ASs. To optimize bandwidth, the design will implement load sharing between router R6 and router R4. Which solution should the design include?
Use update-source to specify the Loopback interface.
Use next-hop-serf attributes only for routes that are learned from eBGP peers.
Configure the eBGP TTL to support eBGP multihop.
Use maximum-paths to install multiple paths in the routing table.
Refer to the exhibit.
Refer to the exhibit. AS65533 and AS65530 are announcing a partial Internet routing table as well as their IP subnets. An architect must create a design that ensures AS64512 become a transit AS. Which filtering solution must the architect choose?
Maximum-prefix
No-advertise
Next-hop
No Export
Refer to the exhibit.
Refer to the exhibit. Where must an architect plan for route summarization for the topology?
from the core toward the aggregation and the access toward the aggregation
from the core toward the aggregation and the aggregation toward the core
from the aggregation toward the access and the access toward the aggregation
from the aggregation toward the core and the aggregation toward the access
An engineer must design a QoS solution for a customer that is connected to an ISP over a 1Gbps link with a 100Mbps CIR. The ISP aggressively drops all traffic received over which is causing numerous TCP retransmissions. The customer is not using any RTP applications but wants to maximize bandwidth usage up to the CIR. Which QoS solution engineer choose?
Policing
Traffic shaping
Policer with markdown
Queuing
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