多項(xiàng)選擇題Which of the following types of attacks does DHCP snooping prevent?(Choose all that apply.)()

A.Attacker sends multiple DHCP requests flooding DHCP server
B.Attacker connects rogue server initiating DHCP requests
C.Attacker connects rogue server replying to DHCP requests
D.Attacker sends DHCP jam signal causing DHCP server to crash
E.Attacker sends gratuitous ARP replies, thereby jamming the DHCP server
F.Attacker sends unsolicited DHCP replies, thereby jamming the DHCP server


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2.多項(xiàng)選擇題Which of the following router models will support 1000 tunnels?()

A.2811
B.2801
C.2851
D.2821
E.1841
F.3825

3.單項(xiàng)選擇題Which of the following is not a typical maintenance task within a network maintenance model?()

A.Providing technical customer support
B.Changing configurations
C.Updating software
D.Monitoring network performance
E.Replacing hardware
F.Scheduling backups

4.單項(xiàng)選擇題Which of the following correctly fills in the missing words of this sentence: An ARP request uses aaddress, whereas an ARP reply uses a address.()

A.broadcast, multicast
B.unicast, broadcast
C.broadcast, unicast
D.multicast, unicast
E.broadcast, broadcast
F.unicast, multicast

5.單項(xiàng)選擇題Which of the following events would not explain excessive CPU utilization?()

A.A large number of BGP sessions
B.A large BGP table
C.A router is configured with the following command: ip route 0.0.0.0 0.0.0.0 fa 0/1
D.All interface buffers are continually in use
E.A flapping interface
F.The router sends a large number of ARP requests

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