On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?A．Deleting unusable addresses through the creation of many subnets.B．Combining routes to multiple networks into one supernet.C．Reclaiming unuse

题目

On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?

A．Deleting unusable addresses through the creation of many subnets.

B．Combining routes to multiple networks into one supernet.

C．Reclaiming unused space by means of changing the subnet size.

D．Calculating the available host addresses in the AS.

E．None of the above

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相似问题和答案

第1题：

Which of the following BEST describes a DAS?()

A. A collection of disks presented as storage to multiple servers through dedicated channels.

B. A collection of disks presented as storage to a single server through an existing network.

C. A collection of disks presented as storage to a single server through directly attached technologies.

D. A collection of disks presented as storage to multiple servers through an existing network.

参考答案：C

第2题：

Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a shorter AS_Path Length, smaller MED, the same Weight, and smaller Local PreferencE.Which of the following is true about Router R1‘s choice of best path for this prefix?（）

A. Route 1 is the best route.

B. Route 2 is the best route.

C. The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers .

D. Neither route is considered best.

参考答案：B

第3题：

Split horizon has been enabled within the Ezonexam routed network. Which one of the following statements best explains the split horizon rule?

A．Only routers can split boundaries (horizons) between networks in separate AS numbers.

B．Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.

C．Once a route is received on an interface, advertise that route as unreachable back out the same interface.

D．Information about a route should never be sent back in the direction from which the original update came.

E．None of the above

正确答案：D
解析：Explanation:
The split horizon rule states:
* Never advertise a route out of the interface through which you learned it.

For instance, in Figure 4a below, if Router One is connected to Routers Two and Three through a single multipoint interface (such as Frame. Relay), and Router One learned about Network A from Router Two, it will not advertise the route to Network A back out the same interface to Router Three. Router one assumes that Router Three would learn about Network A directly from Router Two.

Incorrect Answers:
A: There is no such requirement

B: Distance vector protocols updates routing table at regular intervals instead of Topology changes

C: This is the definition of the poison reverse rule, not the split horizon rule.

第4题：

Which one of the following statements best explains the split horizon rule?（）

A、Only routers can split boundaries (horizons) between networks in separate AS numbers.
B、Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.
C、Once a route is received on an interface, advertise that route as unreachable back out the same interface.
D、Information about a route should never be sent back in the direction from which the original update came.

正确答案:D

第5题：

Which one of the following statements best explains the split horizon rule used in distance vector routing protocols?()

A. Only routers can split boundaries (horizons) between concentric networks.

B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.

C. Networks can only remain fully converged if all information is sent out all active interfaces.

D. Information about a route should not be sent back in the direction from which the original update came.

E. Distance vector protocols need fall back routers that are responsible for momentary loops.

参考答案：D

第6题：

Which of the following is the BEST network device to allow multiple network connections to beterminated in one spot?()

A. A patch panel

B. A 66 block

C. A smart jack

D. A cross connect

参考答案：A

第7题：

Which of the following answers is the least likely reason for an engineer to choose to use route redis tribution?()

A. To exchange routes between merged companies

B. To give separate control over routing to different parts of one company

C. To support multiple router vendors

D. To knit together an OSPF area if the area becomes discontiguous

参考答案：D

第8题：

Which of the following is used to create multiple networks from one large network?()

A.PAT

B.NAT

C.Multicast

D.Subnetting

参考答案：D

第9题：

On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?（）

A、Deleting unusable addresses through the creation of many subnets.
B、Combining routes to multiple networks into one supernet.
C、Reclaiming unused space by means of changing the subnet size.
D、Calculating the available host addresses in the AS.

正确答案:B

第10题：

Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a shorter AS_Path Length, smaller MED, the same Weight, and smaller Local PreferencE. Which of the following is true about Router R1's choice of best path for this prefix?（）

A、Route 1 is the best route.
B、Route 2 is the best route.
C、The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers .
D、Neither route is considered best.

正确答案:B

On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?A．Deleting unusable addresses through the creation of many subnets.B．Combining routes to multiple networks into one supernet.C．Reclaiming unuse

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