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多选题
What are two reasons for using a virtual link in OSPF?（）
A
Provides fast convergence times.
B
Supports connections of multiple backbones.
C
Eliminates the need for a Designated Router.
D
Supports non direct connections to the backbone.
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更多 “多选题What are two reasons for using a virtual link in OSPF?（）AProvides fast convergence times.BSupports connections of multiple backbones.CEliminates the need for a Designated Router.DSupports non direct connections to the backbone.” 相关考题
考题
How is the cost of a virtual link in OSPF calculated?()
A. Takes the metric of the outgoing interface.B. Uses the metric that is assigned during configuration.C. Uses the path metric to reach the virtual link neighbor.D. Uses a default of zero unless otherwise specified.
考题
What are two reasons for using a virtual link in OSPF?()
A. Provides fast convergence times.B. Supports connections of multiple backbones.C. Eliminates the need for a Designated Router.D. Supports non direct connections to the backbone.
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When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?()
A. OSPF process IDB. OSPF router IDC. OSPF network typeD. OSPF memory usageE. OSPF CPU utilizationF. OSPF stub area configurations
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Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF).Which two statements best describe the OSPF link - state routing pro tocol?（）A. OSPF sends updates every 10 secondsB. OSPF sends triggered updates when a network change occursC. When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast addressD. OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
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Refer to the exhibit. During the process of configuring a virtual link to connect area 2 with the backbone area, the network administrator received this console message on R3:*Mar 1 00:2 5:01.084: %OSPF -4- ERRRCV: Received invalid packet: mismatch area ID, from backbone area must be virtual link but not found from 20.20.20.1, Serial 0 .How should the virtual link be configured on the OSPF routers to establish full connectivity between the areas?（）A.R1(config - router)# area 0 virtual - link 1.1.1.1R3(config - router)# area 2 virtual - link 3.3.3.3B.R1(config - router)# area 1 virtual - link 2.2.2.2 R3(config - router)# area 1 virtual - link 2.2.2.2C.R1(config - router)# area 1 virtual - link 20.20 .20.2 R3(config - router)# area 1 virtual - link 30.30.30.2D.R1(config - router)# area 1 virtual - link 30.30.30.3 R3(config - router)# area 1 virtual - link 20.20.20.1E.R1(config - router)# area 1 virtual - link 3.3.3.3 R3(config - router)# area 1 virtual - link 1.1 .1.1
考题
If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkB、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedC、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorD、A SHAM link is part of OSPF network of MPLS-VPN provider
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When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?（）A、OSPF process IDB、OSPF router IDC、OSPF network typeD、OSPF memory usageE、OSPF CPU utilizationF、OSPF stub area configurations
考题
Several links have been broken so th at for the next day or two, what was formerly a contiguous area 0 has been broken into two parts. However, both parts of area 0 have working links into area 1 using routers with RID 1.1.1.1 and 2.2.2.2. Which answers list the command on the router with RID 1.1.1.1 to create a virtual link to help solve this temporary problem?（）A、area 0 virtual - link 2.2.2.2B、area 1 virtual - link 2.2.2.2C、area 0 source - rid 1.1.1.1 dest - rid 2.2.2.2D、virtual - link transit - area 1 RID 2.2.2.2
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What are two benefits of using a single OSPF area network design?（）A、it reduces the number of required OSPF neighbor adjacenciesB、It reduces the types of LSAs that are generatedC、It is less CPU intensive for routers in the single areaD、It increases LSA response times.E、It removes the need for virtual links
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Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). Which two statements best describe the OSPF link - state routing pro tocol?（）A、OSPF sends updates every 10 secondsB、OSPF sends triggered updates when a network change occursC、When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast addressD、OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
考题
You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）A、The link is using IEEE 802.1Q protocolB、The link is using IEEE 802.1E protocolC、Spanning tree is disabledD、Not enough information to determineE、The native VLAN information is identical at each end of the linkF、The native VLAN information is different at each end of the link
考题
What is the correct virtual link configuration on an OSPF router？（）A、area 0.0.0.0{ linkneighbor-id 172.168.18.2 transit-area 0.0.2.1；}B、area 0.0.0.0{ virtual-linkneighbor-id 172.168.18.2 transit-area 0.0.2.1；}C、area 0.0.0.1{ virtual-linkneighbor-id 172.168.18.2 transit-area 0.0.2.1；}D、area 0.0.2.1{ virtual-linkneighbor-id 172.168.18.2 transit-area 0.0.0.0；}
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What are two components of the QoS Integrated Services （IntServ） model？（）A、 link efficiencyB、 admission controlC、 classification and markingD、 shaping and policingE、 congestion avoidance using the RTP protocolF、 resource reservation using the RSVP protocol
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多选题Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). Which two statements best describe the OSPF link - state routing pro tocol?（）AOSPF sends updates every 10 secondsBOSPF sends triggered updates when a network change occursCWhen a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast addressDOSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
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多选题What are two valid reasons for using IBM Tivoli Access Manager for Enterprise Single Sign-On Graphical Identification and Authentication （GINA）？（）AABBCCDDEE
考题
单选题What is the purpose of the OSPF link-state update packet?（）A
describes a change to the OSPF hello timerB
carries one or more link-state advertisementsC
establishes and maintains neighbor relationshipsD
describes the contents of the entire link-state database
考题
多选题What are two benefits of using a single OSPF area network design?（）Ait reduces the number of required OSPF neighbor adjacenciesBIt reduces the types of LSAs that are generatedCIt is less CPU intensive for routers in the single areaDIt increases LSA response times.EIt removes the need for virtual links
考题
单选题When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?（）A
OSPF process IDB
OSPF router IDC
OSPF network typeD
OSPF memory usageE
OSPF CPU utilizationF
OSPF stub area configurations
考题
单选题Which of the following answers can be verified as true based on the following command output from Router R1?（） R1#show ip ospf virtual - links Virtual Link OSPF_VL0 to router 4.4.4.4 is up Run as demand circuit DoNotAge LSA alloweD. Transit area 1, via interface FastEthernet0/1, Cost of using 3A
R1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.B
The ping 4.4.4.4 command on R1 must currently be successful.C
R1's Fa0/0 OSPF cost is 3.D
4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.
考题
单选题Companycom will be using Virtual IO Server to share Ethernet adapters. What can be done to prevent network failure of the client if a Virtual IO Server goes down?（）A
Create two virtual adapters on the client， each one from a separate Virtual IO ServerB
Enable dead gateway detection on the client so that the network traffic can be reroutedC
Have a spare network card on standby in the client in case the Virtual IO Server goes downD
Create an etherchannel adapter on the client using one Virtual Ethernet adapter from two separate Virtual IO Servers
考题
单选题How is the cost of a virtual link in OSPF calculated?（）A
Takes the metric of the outgoing interface.B
Uses the metric that is assigned during configuration.C
Uses the path metric to reach the virtual link neighbor.D
Uses a default of zero unless otherwise specified.
考题
单选题Several links have been broken so th at for the next day or two, what was formerly a contiguous area 0 has been broken into two parts. However, both parts of area 0 have working links into area 1 using routers with RID 1.1.1.1 and 2.2.2.2. Which answers list the command on the router with RID 1.1.1.1 to create a virtual link to help solve this temporary problem?（）A
area 0 virtual - link 2.2.2.2B
area 1 virtual - link 2.2.2.2C
area 0 source - rid 1.1.1.1 dest - rid 2.2.2.2D
virtual - link transit - area 1 RID 2.2.2.2
考题
多选题If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）AA sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkBA sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedCA SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorDA SHAM link is part of OSPF network of MPLS-VPN provider
考题
多选题You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）AThe link is using IEEE 802.1Q protocolBThe link is using IEEE 802.1E protocolCSpanning tree is disabledDNot enough information to determineEThe native VLAN information is identical at each end of the linkFThe native VLAN information is different at each end of the link
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