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
What is periodically multicasted （every 10 seconds） by the DIS on a LAN to ensure IS-IS Link StateDatabase accuracy？（）
A
PSNP
B
CSNP
C
LSP
D
IIH
E
ISH
参考解析
解析：
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相关考题：
Within IS－IS, the restart helper performs which task?() A. It sends CSNPs to the restarting router.B. It periodically sends TLV 211 to the restarting router.C. It informs other routers in the domain that a router has restarted.D. It tears down adjacency and sends its entire database after 30 seconds.
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
In JUNOS software, what is the default interface metric for IS－IS?() A.1B.10C.100D.10^8/link bandwidth
How often are IS－IS Hello packets transmitted?() A. 3 seconds for DIS; 9 seconds for non-DISB. 9 seconds for DIS; 3 seconds for non-DISC. 10 seconds for DIS; 3 seconds for non-DISD. 10 seconds for all routers
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
What is the recommended practice regarding UDLD when implementing it in all fiber－optic LAN ports?() A. Adjust the default hello timers to three seconds for aggressive mode.B. Enable it in global mode and on every interface you need to support.C. Enable it in global mode to support every individual fiber-optic interface.D. Enable it to create channels containing up to eight parallel links between switches.E. Enable it in global mode to support every individual fiber optic and Ethernet interface.
Whatisperiodicallymulticasted(every10seconds)bytheDISonaLANtoensureIS－ISLinkStateDatabaseaccuracy?() A.PSNPB.CSNPC.LSPD.IIHE.ISH
以下关于在IS-IS协议中广播链路的LSDB同步描述正确的是（）。A、LSP通过组播形式进行泛洪B、DIS周期性地发送CSNP报文C、对于本地数据库中没有的或者更新的LSP信息，普通IS-IS路由器向DIS路由器发送PSNP报文请求需要的LSPD、收到LSP后需要发送PSNP报文进行确认
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
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
In JUNOS software, what is the default interface metric for IS-IS?（）A、1B、10C、100D、10^8/link bandwidth
以下关于伪节点描述正确的是（）。A、在IS-IS协议中，所有网络在外部都被看成一个伪节点B、伪节点不是一个真实的路由器，它不会产生LSPC、DIS会产生伪节点LSPD、在一个IS-IS路由域中只有一个伪节点
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
Within IS-IS, the restart helper performs which task?（）A、It sends CSNPs to the restarting router.B、It periodically sends TLV 211 to the restarting router.C、It informs other routers in the domain that a router has restarted.D、It tears down adjacency and sends its entire database after 30 seconds.
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
How often are IS-IS Hello packets transmitted?（）A、3 seconds for DIS; 9 seconds for non-DISB、9 seconds for DIS; 3 seconds for non-DISC、10 seconds for DIS; 3 seconds for non-DISD、10 seconds for all routers
单选题What is the recommended practice regarding UDLD when implementing it in all fiber-optic LAN ports?（）AAdjust the default hello timers to three seconds for aggressive mode.BEnable it in global mode and on every interface you need to support.CEnable it in global mode to support every individual fiber-optic interface.DEnable it to create channels containing up to eight parallel links between switches.EEnable it in global mode to support every individual fiber optic and Ethernet interface.
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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Within IS-IS, the restart helper performs which task?（）AIt sends CSNPs to the restarting router.BIt periodically sends TLV 211 to the restarting router.CIt informs other routers in the domain that a router has restarted.DIt tears down adjacency and sends its entire database after 30 seconds.
单选题What are the default values for GRE tunnel keeplive time and number of retries？（）A5 seconds and 3 retriesB10 seconds and 5 retriesC10 seconds and 3 retriesD20 seconds and 5 retriesE5 seconds and 5 retries
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?（）ARouter A remains the DIS and generates a new pseudonode LSP for that LANBRouter A remains the DIS and NO new pseudonode LSP is generated for that LANCRouter D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router ADRouter 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In JUNOS software, what is the default interface metric for IS-IS?（）A1B10C100D10^8/link bandwidth
单选题How often are IS-IS Hello packets transmitted?（）A3 seconds for DIS; 9 seconds for non-DISB9 seconds for DIS; 3 seconds for non-DISC10 seconds for DIS; 3 seconds for non-DISD10 seconds for all routers