Cisco 400-007 Practice Test - Questions Answers, Page 3
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How must the queue sizes be designed to ensure that an application functions correctly?
Each individual device queuing delay in the chain must be less than or equal to the application required delay.
The queuing delay on every device in the chain must be exactly the same to the application required delay.
The default queue sizes are good for any deployment as it compensates the serialization delay.
The sum of the queuing delay of all devices plus serialization delay in the chain must be less than or equal to the application required delay.
Which two mechanisms avoid suboptimal routing in a network with dynamic mutual redistribution between multiple OSPFv2 and EIGRP boundaries? (Choose two.)
AD manipulation
matching OSPF external routes
route tagging
route tagging
route filtering
matching EIGRP process ID
Which Interconnectivity method offers the fastest convergence in the event of a unidirectional issue between three Layer 3 switches connected together with routed links in the same rack in a data center?
Copper Ethernet connectivity with BFD enabled
Copper Ethernet connectivity with UDLD enabled
Fiber Ethernet connectivity with BFD enabled
Fiber Ethernet connectivity with UDLD enabled
Which two actions ensure voice quality in a branch location with a low-speed, high-latency WAN connection? (Choose two.)
Increase WAN bandwidth
Increase memory branch switch.
Fragment data packets.
Replace any electrical links with optical links
Prioritize voice packets
Which function is performed at the access layer of the three-layer hierarchical network design model?
fault isolation
QoS classification and marking boundary
reliability -
fast transport
redundancy and load balancing
Refer to the exhibit.
As part of a redesign project, you must predict multicast behavior What happens to the multicast traffic received on the shared tree (*,G), if it is received on the LHR interface indicated*?
It is dropped due to an unsuccessful RPF check against the multicast source
It is switched give that no RPF check is performed
It is switched due to a successful RPF check against the routing table
It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.
A BGP route reflector in the network is taking longer than expected to coverage during large network changes. Troubleshooting shows that the router cannot handle all the TCP acknowledgements during route updates. Which action can be performed to tune the device performance?
Increase the size of the hold queue.
Increase the size of the large buffers.
Decrease the size of the small buffers.
Increase the keepalive timers for each BGP neighbor.
Which two application requirements are mandatory tor traffic to receive proper treatment when placed in the priority queue? (Choose two.)
small transactions (HTTP-like behavior)
WRED drop treatment
tolerance to packet loss
intolerance to jitter
TCP-based application
Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network? (Choose two.)
The Reported Distance from a successor is lower than the local Feasible Distance.
The Reported Distance from a successor is higher than the local Feasible Distance.
The feasibility condition does not need to be met.
The Feasible Distance from a successor is lower than the local Reported Distance.
A feasible successor must be present.
Company XYZ has a hub-and-spoke topology over an SP-managed infrastructure. To measure traffic performance metrics, they implemented IP SLA senders on all spoke CE routers and an IP SLA responder on the hub CE router. What must they monitor to have visibility on the potential performance impact due to the constantly increasing number of spoke sites?
CPU and memory usage on the spoke routers
memory usage on the hub router
CPU usage on the hub router
interface buffers on the hub and spoke routers
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