Which of following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）A、LSPB、PSNPC、ISHD、CSNPE、IIH
Which of following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）
- A、LSP
- B、PSNP
- C、ISH
- D、CSNP
- E、IIH
相关考题：
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
Which two statements are correct regarding IS－IS?() A. Routers maintain a single link-state database per area.B. Routers maintain a separate Level 1 link-state database.C. Routers maintain a separate Level 2 link-state database.D. Routers maintain a single Level 1 link-state database across multiple areas.
Which CLI command is used to see the current OSPF link－state database?() A. show ospf databaseB. show ospf neighborC. show protocols ospfD. show ospf link-state
What is periodically sent by a DIS on a LAN to ensure that all adjacent neighbors' IS － IS link － state databases are synchronized?() A. complete SNP (CSNP)B. partial SNP (PSNP)C. database queryD. database description packet (DDP)E. link - state summaryF. hello
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
WhichoffollowingisusedtoperiodicallymulticastbyDISonaLANtoensureIS－ISlinkstatedatabaseaccuracy?() A.LSPB.PSNPC.ISHD.CSNPE.IIH
Which of the following technologies can be used in distance vector routing protocols to prevent routing loops?（）A、Spanning Tree ProtocolB、Shortest path first treeC、Link-state advertisements (LSA)D、Hold-down timersE、Split horizonF、VRP
What is periodically sent by a DIS on a LAN to ensure that all adjacent neighbors' IS - IS link - state databases are synchronized?（）A、complete SNP (CSNP)B、partial SNP (PSNP)C、database queryD、database description packet (DDP)E、link - state summaryF、hello
While troubleshooting some connectivity issues， you issue the "show ip ospf database" in order toexamine the link state database. Which three of the statements below are true regarding theOSPF link state database？（）A、Each router has an identical link state databaseB、External routes are imported into a separate link state databaseC、Synchronization of link state databases is maintained via flooding of LSAsD、Information in the link state database is used to build a routing table by calculating a shortest-path treeE、By default， link state databases are refreshed every 10 minutes in the absence of topologychanges
In Multicast VPN （MVPN） implementations， which two of the following statements are regarding the DefaultMDT Group？（）A、It is used for PIM control trafficB、It is optionally configured for a high bandwidth multicast source to reduce multicast traffic replication to uninterested PE routersC、Within the VPF configuration in the PE router， multiple Default MDT groups are configured so each VPF can support multiple multicast sourcesD、There is a reduced multicast state in the MPLS core P routersE、When multicast traffic exceeds a certain configured threshold， traffic from the Data MDT is switched to the Default MDT to conserve bandwidth
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
Which of the following OSI model layers is used for logical addressing?（）A、PhysicalB、TransportC、NetworkD、Data link
Which of the following multicast mode does Auto-RP require？（）A、Link-modeB、Dense modeC、Sparse modeD、Sparse-dense mode
以下关于IS-IS协议Hello报文结构不正确的是？（）A、Level-1 LAN IIH报文结构和Level-2 LAN IIH报文结构是一致的B、LAN IIH固定长度为27个字节C、P-to-P IIH报文固定长度为20个字节D、LAN IIH有一个字节的优先级字段
Which of the following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）A、CSNPB、LSPC、ISHD、HelloE、IIHF、PSNP
What is periodically multicasted （every 10 seconds） by the DIS on a LAN to ensure IS-IS Link StateDatabase accuracy？（）A、PSNPB、CSNPC、LSPD、IIHE、ISH
Which of the following devices is used to connect a WAN to a LAN?（）A、Basic routerB、Basic switchC、BridgeD、Repeater
Which of the following routing protocols is a link state and uses a backbone called area 0？（）A、OSPFB、EIGRPC、BGPD、IS-IS
Which of the following are considered link state protocols?（）A、RIPv2 and EIGRPB、EGP and IGPC、OSPF and IS-ISD、RIP and BGP
Which of the following commands is used to observe the current state of the routing table？（）A、routeB、lsattrC、netstatD、ifconfig
Which two statements are correct regarding IS-IS？（）A、Routers maintain a single link-state database per area.B、Routers maintain a separate Level 1 link-state database.C、Routers maintain a separate Level 2 link-state database.D、Routers maintain a single Level 1 link-state database per area.
Which CLI command is used to see the current OSPF link-state database?（）A、show ospf databaseB、show ospf neighborC、show protocols ospfD、show ospf link-state
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
单选题What is periodically sent by a DIS on a LAN to ensure that all adjacent neighbors' IS - IS link - state databases are synchronized?（）Acomplete SNP (CSNP)Bpartial SNP (PSNP)Cdatabase queryDdatabase description packet (DDP)Elink - state summaryFhello
单选题What is periodically multicasted （every 10 seconds） by the DIS on a LAN to ensure IS-IS Link StateDatabase accuracy？（）APSNPBCSNPCLSPDIIHEISH
单选题Which of following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）ALSPBPSNPCISHDCSNPEIIH
单选题Which of the following routing protocols is a link state and uses a backbone called area 0？（）AOSPFBEIGRPCBGPDIS-IS