单项选择题
On which types of network will OSPF elect a backup designated router（）。
A.point-to-point and multiaccess
B.point-to-multipoint and multiaccess
C.point-to-point and point-to-multipoint
D.nonbroadcast and broadcast multipoint
E.nonbroadcast and broadcast multiaccess
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相关考题
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单项选择题
Which type of attack is characterized by flood of packet that requesing a TCP connection to a server?（）
A.denial of service
B.brute force
C.reconnaissance
D.Trojan horse -
单项选择题
Which item represents the standard IPACL？（）
A.access-list 50 deny 192.168.1.10.0.0.255
B.access-list 110 permit ip any any
C.access-list 2500 deny tcp any host 192.168.1.1 eq22
D.access-list 101 deny tcp any host 192.168.1.1 -
单项选择题
What is the default routing update period for RIPv2?（）
A.15 seconds
B.30 seconds
C.180 seconds
D.240 seconds
