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There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A's DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80. Which statement is true?（）
- A、Router A remains the DIS and generates a new pseudonode LSP for that LAN
- B、Router A remains the DIS and NO new pseudonode LSP is generated for that LAN
- C、Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router A
- D、Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A
参考答案
更多 “ There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A's DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80. Which statement is true?（）A、Router A remains the DIS and generates a new pseudonode LSP for that LANB、Router A remains the DIS and NO new pseudonode LSP is generated for that LANC、Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router AD、Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A” 相关考题
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There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A‘s DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80.Which statement is true?（）A. Router A remains the DIS and generates a new pseudonode LSP for that LANB. Router A remains the DIS and NO new pseudonode LSP is generated for that LANC. Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router AD. Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A
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Which three statements about the secure domain router are true？（）A、The logical router can span across chassis.B、The fabric and system controller module are shared by all logical routers.C、Each logical router has a distinct fabric and system controller moduleD、The logical router can share a route processorE、The logical router cannot share a route processor
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Which two statements regarding the IS-IS DIS election process are true？ （）A、A priority of 0 will prevent a router from becoming a DIS.B、If the DIS becomes unavailable the backup DIS is promoted to DIS.C、Adding a router with a higher priority than the current DIS will result in the new router becoming DIS.D、Separate L1 and L2 election processes are held on a brodcast network.E、L1 routers on a broadcast network only establish adjacencies with the DIS.F、If there is a tie based on priority，the router whose attached interface has the lowest MAC address becomes the DIS.
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Router R1 and R2 are both configured for HSRP. Which two statements about the HSRP priorities of these two routers are true？（）A、 To assign the HSRP router priority in a standby group， the standby group-number priority priority-value global configuration command must be used.B、 The default priority of a router is zero （0）.C、 The no standby priority command assigns a priority of 100 to the router.D、 Assuming that preempting has also been configured， the router with the lowest priority in an HSRP group would become the active router.E、 When two routers in an HSRP standby group are configured with identical priorities， the router with the highest configured IP address will become the active router.
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A new router is added to an existing HSRP standby group. One of the existing routers is in anactive state， the other is in a standby state. Under what circumstance will the new router becomethe active router？（）A、The new router will become active immediately because it’s the newest router introduced intothe groupB、The new router can become active only when the existing active router and the existing standbyrouter become unavailableC、The new router has a lower priority valueD、The new router will never become active unless the existing active router becomes unavailableE、The new router has preempt configured and a higher priorityF、The new router has a higher priority value
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You have a Level 1-only router (Router A) in IS-IS area 49.0001. How does Router A learn how to get to IP prefixes in other areas?（）A、Router A must have a Level 2 adjacency with the Level 1/Level 2 router in area 49.0001.B、The Level 1/Level 2 router in area 49.0001 sets the "attached" bit in the Level 1 link-state PDU (LSP) it floods into area 49.0001.C、The Level 1/Level 2 router in area 49.0001 sets the "attached" bit in the Level 2 LSP it floods into area 49.0001.D、The Level 1/Level 2 router in area 49.0001 advertises these prefixes into area 49.0001 using a Level 2 LSP it floods into the area.
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Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?（）A、the router with the lowest priorityB、the router with the highest priorityC、the router with the highest System IDD、the router with the highest IP address
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There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）A、No routers are adjacent with each other.B、Only Router A and Router B are adjacent at Level 1.C、Only Router A and Router B are adjacent at Level 2.D、All three routers are adjacent with each other at Level 1.
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单选题A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG. For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）A
When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.B
When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.C
When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.D
When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.E
None of the other answers is correct.
考题
多选题Which two statements regarding the IS-IS DIS election process are true？ （）AA priority of 0 will prevent a router from becoming a DIS.BIf the DIS becomes unavailable the backup DIS is promoted to DIS.CAdding a router with a higher priority than the current DIS will result in the new router becoming DIS.DSeparate L1 and L2 election processes are held on a brodcast network.EL1 routers on a broadcast network only establish adjacencies with the DIS.FIf there is a tie based on priority，the router whose attached interface has the lowest MAC address becomes the DIS.
考题
单选题A new router is added to an existing HSRP standby group. One of the existing routers is in anactive state， the other is in a standby state. Under what circumstance will the new router becomethe active router？（）A
The new router will become active immediately because it’s the newest router introduced intothe groupB
The new router can become active only when the existing active router and the existing standbyrouter become unavailableC
The new router has a lower priority valueD
The new router will never become active unless the existing active router becomes unavailableE
The new router has preempt configured and a higher priorityF
The new router has a higher priority value
考题
单选题You have a Level 1-only router (Router A) in IS-IS area 49.0001. How does Router A learn how to reach prefixes in other areas?（）A
Router A must have a Level 2 adjacency with the Level 1/Level 2 router in area 49.0001.B
The Level 1/Level 2 router in area 49.0001 sets the attached bit in the Level 2 LSP it floods into area 49.0001.C
The Level 1/Level 2 router in area 49.0001 sets the attached bit in the Level 1 link-state PDU (LSP) it floods into area 49.0001.D
The Level 1/Level 2 router in area 49.0001 advertises these prefixes into area 49.0001 using a Level 2 LSP it floods into the area.
考题
单选题There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）A
No routers are adjacent with each other.B
Only Router A and Router B are adjacent at Level 1.C
Only Router A and Router B are adjacent at Level 2.D
All three routers are adjacent with each other at Level 1.
考题
单选题There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A's DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80. Which statement is true?（）A
Router A remains the DIS and generates a new pseudonode LSP for that LANB
Router A remains the DIS and NO new pseudonode LSP is generated for that LANC
Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router AD
Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A
考题
多选题Which three statements about the secure domain router are true？（）AThe logical router can span across chassis.BThe fabric and system controller module are shared by all logical routers.CEach logical router has a distinct fabric and system controller moduleDThe logical router can share a route processorEThe logical router cannot share a route processor
考题
多选题Router R1 and R2 are both configured for HSRP. Which two statements about the HSRP priorities of these two routers are true？（）ATo assign the HSRP router priority in a standby group， the standby group-number priority priority-value global configuration command must be used.BThe default priority of a router is zero （0）.CThe no standby priority command assigns a priority of 100 to the router.DAssuming that preempting has also been configured， the router with the lowest priority in an HSRP group would become the active router.EWhen two routers in an HSRP standby group are configured with identical priorities， the router with the highest configured IP address will become the active router.
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