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Cisco 400-007 Practice Test - Questions Answers, Page 3

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Question 21

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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.

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 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 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.

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.

Suggested answer: D
asked 10/10/2024
Ian Wilson
50 questions

Question 22

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Which two mechanisms avoid suboptimal routing in a network with dynamic mutual redistribution between multiple OSPFv2 and EIGRP boundaries? (Choose two.)

AD manipulation

AD manipulation

matching OSPF external routes

matching OSPF external routes

route tagging

route tagging

route tagging

route tagging

route filtering

route filtering

matching EIGRP process ID

matching EIGRP process ID

Suggested answer: D, E
Explanation:

https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol- eigrp/8606-redist.html

asked 10/10/2024
Sean Kell
46 questions

Question 23

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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 BFD enabled

Copper Ethernet connectivity with UDLD enabled

Copper Ethernet connectivity with UDLD enabled

Fiber Ethernet connectivity with BFD enabled

Fiber Ethernet connectivity with BFD enabled

Fiber Ethernet connectivity with UDLD enabled

Fiber Ethernet connectivity with UDLD enabled

Suggested answer: C
asked 10/10/2024
Ibrahim Ramku
51 questions

Question 24

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Which two actions ensure voice quality in a branch location with a low-speed, high-latency WAN connection? (Choose two.)

Increase WAN bandwidth

Increase WAN bandwidth

Increase memory branch switch.

Increase memory branch switch.

Fragment data packets.

Fragment data packets.

Replace any electrical links with optical links

Replace any electrical links with optical links

Prioritize voice packets

Prioritize voice packets

Suggested answer: C, E
asked 10/10/2024
Igor van der Burgh
46 questions

Question 25

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Which function is performed at the access layer of the three-layer hierarchical network design model?

fault isolation

fault isolation

QoS classification and marking boundary

QoS classification and marking boundary

reliability -

reliability -

fast transport

fast transport

redundancy and load balancing

redundancy and load balancing

Suggested answer: B
asked 10/10/2024
Leonardo Amorim
38 questions

Question 26

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Refer to the exhibit.

Cisco 400-007 image Question 26 118702 10102024233153000000

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 dropped due to an unsuccessful RPF check against the multicast source

It is switched give that no RPF check is performed

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 switched due to a successful RPF check against the routing table

It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.

It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.

Suggested answer: C
Explanation:

https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/16450-mcastguide0.html

When a multicast packet arrives on an interface, the RPF process checks to ensure that this incoming interface is the outgoing interface used by unicast routing in order to reach the source of the multicast packet. This RPF check process prevents loops. Multicast routing does not forward a packet unless the source of the packet passes a RPF check. Once a packet passes this RPF check, multicast routing forwards the packet based only upon the destination address.

asked 10/10/2024
Venkateswar Parupalli
36 questions

Question 27

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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 hold queue.

Increase the size of the large buffers.

Increase the size of the large buffers.

Decrease the size of the small buffers.

Decrease the size of the small buffers.

Increase the keepalive timers for each BGP neighbor.

Increase the keepalive timers for each BGP neighbor.

Suggested answer: A
asked 10/10/2024
Andrea Chichiarelli
43 questions

Question 28

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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)

small transactions (HTTP-like behavior)

WRED drop treatment

WRED drop treatment

tolerance to packet loss

tolerance to packet loss

intolerance to jitter

intolerance to jitter

TCP-based application

TCP-based application

Suggested answer: A, D
asked 10/10/2024
Mathijn Smit
49 questions

Question 29

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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 lower than the local Feasible Distance.

The Reported Distance from a successor is higher 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 feasibility condition does not need to be met.

The Feasible Distance from a successor is lower than the local Reported Distance.

The Feasible Distance from a successor is lower than the local Reported Distance.

A feasible successor must be present.

A feasible successor must be present.

Suggested answer: A, E
asked 10/10/2024
JAMIE JARAMILLO LOOR
40 questions

Question 30

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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

CPU and memory usage on the spoke routers

memory usage on the hub router

memory usage on the hub router

CPU usage on the hub router

CPU usage on the hub router

interface buffers on the hub and spoke routers

interface buffers on the hub and spoke routers

Suggested answer: C
asked 10/10/2024
Helmut Steingraber
37 questions
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