多选题Which three factors have the biggest influence on OSPF scalability？（）AFlooding paths and redundancyBAmount of routing information in the OSPF area or routing domainCNumber of routers with Cisco Express Forwarding enabledDNumber of neighbor adjacenciesE

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多选题

Which three factors have the biggest influence on OSPF scalability？（）

Flooding paths and redundancy

Amount of routing information in the OSPF area or routing domain

Number of routers with Cisco Express Forwarding enabled

Number of neighbor adjacencies

Other routing protocols in use

OSPF timer reconstruction negotiation

Redistribution with BGP neighbors

Redistribution with other IGP routing protocols， such as RIP or EIGRP

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相似问题和答案

第1题：

Which three statements are correct about the differences in IS － IS and OSPF?()

A. IS - IS is more CPU - intensive than is OSPF

B. For greater fine tuning there are more IS - IS timers

C. IS - IS LSP con tains TLV fields and OSPF LSU contains the LSAs

D. New additions to the protocol are easily implemented in OSPF but not with IS - IS

E. OSPF has more area types than does IS - IS

参考答案：B, C, E

第2题：

When an OSPF design is planned, which implementation can help a router not have memory resource issues?()

A. Have a backbone area (area 0) with 40 routers and use default routes to reach external destinations

B. Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPF

C. Have less OSPF areas to reduce the need for interarea route summarizations

D. Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2

参考答案：A

第3题：

(ii) Briefly discuss FOUR non-financial factors which might influence the above decision. (4 marks)

正确答案：
(ii) Four factors that could be considered are as follows:
(i) The quality of the service provided by NSC as evidenced by, for example, the comfort of the ferries, on-board
facilities, friendliness and responsiveness of staff.
(ii) The health and safety track record of NSC – passenger safety is a ‘must’ in such operations.
(iii) The reliability, timeliness and dependability of NSC as a service provider.
(iv) The potential loss of image due to redundancies within Wonderland plc.

第4题：

Which three statements about OSPF areas are true?（）

A、Areas introduce a boundary on the link - state updates.
B、Areas are logical definitions specific to any given router.
C、All routers within an area have the exact link - state database.
D、The calculation of the Dijkstra algorithm on a router is limited to changes within an area.
E、The area designated router will always have a priority of 0.

正确答案:A,C,D

第5题：

When an OSPF design is planned, which implementation can help a router not have memory resource issues?（）

A、Have a backbone area (area 0) with 40 routers and use default routes to reach external destinations
B、Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPF
C、Have less OSPF areas to reduce the need for interarea route summarizations
D、Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2

正确答案:A

第6题：

The maximum number of routers per OSPF area typically depends on which three factors?()

A. the kind of OSPF areas being implemented

B. the number of external LSAs in the network

C. the number of DRs and BDRs in the areas

D. the number of virtual links in the areas

E. how well the areas can be summarized

F. the use of LSA filters

参考答案：A, B, E

第7题：

Which three are advantages to creating multiple areas in OSPF? (Choose three.) Select 3 response(s)？（）

A、less frequent SPF calculations
B、fewer hello packets
C、smaller routing tables
D、reduced LSU overhe ad
E、fewer adjacencies needed

正确答案:A,C,D

第8题：

if all OSPF routers on a broadcast network have the same OSPF priority, which parameter is used to determine the new BDR at the time of a DR failure?()

A.A

B.B

C.C

D.D

参考答案：B

第9题：

When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?（）

A、All OSPF routers in stubby areas can have type 3 LSAs in their database.
B、All OSPF routers in stubby areas can have type 7 LSAs in their database.
C、All OSPF routers in totally stubby areas can have type 3 LSAs in their database.
D、All OSPF routers in totally stubby areas can have type 7 LSAs in their database.
E、All OSPF routers in NSSA areas can have type 3 LSAs in their database.
F、All OSPF routers in NSSA areas can have type 7 LSAs in their database.

正确答案:A,E,F

第10题：

Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part？（）

A、EIGRP will not be accepted when configured on the actual RIPv2 routers.
B、OSPF will no longer be used in the routing table， because you only have EIGRP internal routes running.
C、OSPF will no longer be used in the routing table， because you only have EIGRP external routes running.
D、RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP external routes running.
E、RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP internal routes running.
F、OSPF database will have RIPv2 routes.

正确答案:B,E

Which three factors have the biggest influence on OSPF scala

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