最大MAC地址表示最高优先权
最大MAC地址表示最低优先权
最小MAC地址表示最高优先权
最小MAC地址表示最低优先权
第1题：
A. support for designated intermediate systems and backup designated intermediate systems
B. support for multip le areas per router
C. support for classless routing
D. support for address summarization between areas
E. support for both DIS adjacencies and neighbor adjacencies
第2题：
在优先权相同的情况下选举DesignatedIntermediateSystem（DIS），则（）。
第3题：
A.最大MAC地址表示最高优先权
B.最大MAC地址表示最低优先权
C.最小MAC地址表示最高优先权
D.最小MAC地址表示最低优先权
第4题：
IS - IS is often considered an alternative to OSPF in the IP world. Which two statements identify similarities between IS -IS and OSPF?（）
第5题：
以下关于DIS选举规则描述正确的是（）。
第6题：
Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）
A. supports VLSM
B. link - state routing protocol
C. operati on is similar to BGP
D. supports two routing levels within an autonomous system
第7题：
在直径相同情况下，模数越大齿数则越多。
第8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 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
第9题：
在没有按期提供优先权文件或其译本的情况下，则如同已要求了优先权而作出书面意见；然而，如果必要的优先权文件或其译本在建立国际初审报告之时仍不能获得，则视为未要求优先权而建立国际初审报告。
第10题：
ISIS协议中，如果有优先级更高的路由器出现，DIS会重新选举。