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【多选题】

The internetwork infrastructure of company XYZ consists of a single OSPF area as shown in the graphic. There is concern that a lack of router resources is impeding internetwork performance. As part of examining the router resources, the OSPF DRs need to be known. All the router OSPF priorities are at the default and the router IDs are shown with each router. Which routers are likely to have been elected as DR?（）<br /> <img src="https://nimg.ppkao.com/2018-07/zhouyun/2018072609025666799.jpg?sign=aaa04ee7506e48008e9eebfb449a89be&t=62d01e25" />

A、Corp-1

B、Corp-2

C、Corp-3

D、Corp-4

E、Branch-1

F、Branch-2

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更多“ The internetwork infrastructure of company XYZ consists of a single OSPF area as shown in the graphic. There is concern that a lack of router resources is impeding internetwork performance. As part of examining the router resources, the OSPF DRs need to be known. All the router OSPF priorities are at the default and the router IDs are shown with each router. Which routers are likely to have been elected as DR?（）<br /> <img src="https://nimg.ppkao.com/2018-07/zhouyun/2018072609025666799.jpg?sign=aaa04ee7506e48008e9eebfb449a89be&t=62d01e25" />”相关的问题
第1题
[单选题] VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag?（）

A、provide service internetworking  B、support transparency for Layer 2 frames  C、indicate destination as a connection identifier  D、map to the DLCI in service internetworking  

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第2题
[] How does ERS use the VLAN tag?（）

A、A. to provide service internetworking  B、B. to support transparency for Layer 2 frames  C、C. as a connection identifier to indicate destination  D、D. as a mapping to the DLCI in service internetworking  E、E. to provide a trunk by which all VLANs can navigate from one site to one or multiple sites  

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第3题
[单选题] When a packet is sent from Host 1 to Server 1, in how many different frames will the packet be encapsulated as it is sent across the internetwork（）。

A、0  B、1  C、2  D、3  E、4  

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第4题
[] The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list  question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32 The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh

A、A. R1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1  B、B. R1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1  C、C. R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablE  D、D. R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE  

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第5题
[单选题] When a packet is sent from Host 1 to Server 1, in how many different frames will the packet be  encapsulated as it is sent across the internetwork?（）

A、0  B、1  C、2  D、3  E、4  

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第6题
[多选题] The OSPF hello protocol performs which of the following tasks?（）

A、It provides dynamic neighbor discovery  B、It detects unreachable neighbors in 90 second intervals  C、It maintains neighbor relationships  D、It negotiates correctness parameters between neighboring interfaces  E、It uses timers to elect the router witch the fastest links as the designated router  F、It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF  

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第7题
[多选题] The OSPF Hello protocol performs which of the following tasks (Choose two.)（）。

A、It provides dynamic neighbor discovery.  B、It detects unreachable neighbors in 90 second intervals.  C、It maintains neighbor relationships.  D、It negotiates correctness parameters between neighboring interfaces.  E、Ituses timers to elect the router with the fastest links as the designated router.  F、It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.  

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第8题
[单选题] How does the Ethernet Relay Service use the VLAN tag？（）

A、 to provide service internetworking  B、 to support transparency for Layer 2 frames  C、 as a connection identifier to indicate destination  D、 as a mapping to the DLCI in service internetworking  E、 to provide a trunk by which all VLANs can navigate from one site to one or multiple sites  

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第9题
[单选题] VLAN Tagging， also known as Frame Tagging， is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link， a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag？（）

A、 provide service internetworking  B、 support transparency for Layer 2 frames  C、 indicate destination as a connection identifier  D、 map to the DLCI in service internetworking  

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