第一題：
路由器a的配置如下
quidway#show run
now create configuration...
current configuration
!
!
interface ethernet0
ip address
!
interface serial0
encapsulation ppp
backup interface serial 1
ip address
!
interface serial1
encapsulation ppp
ip address
!
interface serial2
flowcontrol normal
async mode dedicated
encapsulation ppp
!
exit
router rip
!
end
路由器b的配置如下
quidway#show run
now create configuration...
current configuration
!
!
interface ethernet0
ip address
!
interface serial0
encapsulation ppp
backup interface serial 1
ip address
!
interface serial1
encapsulation ppp
ip address
!
interface serial2
flowcontrol normal
async mode dedicated
encapsulation ppp
!
exit
router rip
!
end
下述說法正確的'是( bcd )
a、備份功能可以正常使用
b、備份功能不能正常使用
c、兩端可以正常互聯
d、兩端不能正常互聯
第二題：
quidway#show run
now create configuration...
current configuration
!
!
interface ethernet0
ip address
ip ospf enable area
!
interface serial0
clock-select dteclk1
encapsulation ppp
ip address
ip ospf enable area
!
interface serial1
encapsulation ppp
!
interface serial2
flowcontrol normal
async mode dedicated
encapsulation ppp
!
exit
router ospf enable
!
end
路由器b配置如下
quidway#show run
now create configuration...
current configuration
!
!
interface ethernet0
ip address
ip ospf enable area
!
interface serial0
encapsulation ppp
ip address
ip ospf enable area
!
interface serial1
encapsulation ppp
!
interface serial2
flowcontrol normal
async mode dedicated
encapsulation ppp
!
exit
router ospf enable
!
end
如下說法正確的是( a )
a、兩端廣域網可以聯通，但區域網不可以連通
b、兩端廣域網不可以連通，但區域網可以連通
c、廣域網和區域網都可以連通
d、廣域網和區域網都不能連通
