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Which two are NOT characteristics of the OSPF routing protoc

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Which two are NOT characteristics of the OSPF routing protocol?（）
A

It confines network instability to a single area of network.

B

It increases the routing overhead of the network

C

It supports VLSM

D

It routes between Autonomous Systems.

E

It allows extensive control of routing updates

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第1题：

Which two are NOT characteristics of the OSPF routing protocol?()

A. It confines network instability to a single area of network.

B. It increases the routing overhead of the network

C. It supports VLSM

D. It routes between Autonomous Systems.

E. It allows extensive control of routing updates


参考答案：B, D

第2题：

What are two characteristics of Frame Relay point-to-point subinterfaces?（）

  • A、They create split-horizon issues
  • B、They require a unique subnet within a routing domain
  • C、They emulate leased lines
  • D、They are ideal for full-mesh topologies
  • E、They require the use of NBMA options when using OSPF

正确答案:B,C

第3题：

Which two are characteristics of the IS －IS protocol but not OSPF?()

A. forms adjacencies with all neighbors

B. supports demand circuit routing

C. provides routing support for multiple network layer protocols

D. utilizes SPF algorithm

E. provides for network scalability by allowing the network to be separated into areas

F. three layers of hierarchical routing


参考答案：A, C

第4题：

Which two statements are true about IS -IS routing?（）

  • A、Based on the default timers, OSPF d etects a failure faster than IS - IS does.
  • B、OSPF default timers permit more tuning than IS - IS does.
  • C、IS - IS is more efficient than OSPF in the use of CPU resources.
  • D、OSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.
  • E、IS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.

正确答案:C,E

第5题：

Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)（）。

  • A、It is locally significant
  • B、It is globally significant
  • C、It is needed to identify a unique instance of an OSPF database
  • D、It is an optional parameter required only if multiple OSPF processes are running on the router
  • E、All routers in the same OSPF area must have the same process ID if they are to exchange routing information

正确答案:A,C

第6题：

What are two characteristics of Frame Relay point－to－point subinterfaces?()

A.They create split-horizon issues

B.They require a unique subnet within a routing domain

C.They emulate leased lines

D.They are ideal for full-mesh topologies

E.They require the use of NBMA options when using OSPF


参考答案：B, C

第7题：

Which two statements are characteristics of a distance vector routing protocol?（）

  • A、RIP is an example of distance vector routing protocols
  • B、Updates are periodic and include the entire routing table
  • C、Routing updates are sent only after topology changes
  • D、The protocol can be useful in hub-and-spoke and hierarchical networks
  • E、Convergence is usually faster than with link state protocols
  • F、Each router has its own view of the topology

正确答案:A,B

第8题：

Which two routing interface parameters are supported in OSPF implementations?()

A. retransmit - interval

B. de ad - interval

C. stub area

D. virtual link

E. NSSA area


参考答案：A, B

第9题：

Which of the following data structures exist on a router for the OSPF routing protocol？（）

  • A、OSPF topology table
  • B、OSPF interface table
  • C、OSPF routing information base
  • D、OSPF link-state database
  • E、OSPF adjacency table
  • F、OSPF neighbor table

正确答案:B,C,D,F

第10题：

A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）

  • A、For the two vlans to communicate，a network statement for the trunk interface needs to be added to the  OSPF configuration.
  • B、For the two vlans to communicate， a network statement for each subinterface needs to be  added  to the OSPF configuration.
  • C、Direct inter-vlan communication does not require OSPF
  • D、OSPF cannot be used if router-on-a-stick is configured on the router

正确答案:C

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