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單項(xiàng)選擇題Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?（）

A.crossover
B.straight-through
C.rolled
D.shielded twisted-pair

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1.單項(xiàng)選擇題最早的網(wǎng)絡(luò)安全工具是（）

A.ACS
B.IPS
C.IDS
D.IPSec

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2.單項(xiàng)選擇題Which parameter or parameters are used to calculate OSPF cost in cisco routers？（）

A.Bandwidth，Delay，and MTUB
B.andwidth
C.Bandwidth and MTU
D.Bandwidth，MTU，Reliability，Delay，and Load

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3.單項(xiàng)選擇題Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU?（）

A.BackboneFast
B.UplinkFast
C.Root Guard
D.BPDU Guard
E.BPDU Filter

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4.單項(xiàng)選擇題Host 1 receives a file from remote server 1. Which MAC address appears as the source address in the header of the frames received by Host 1（）。

A.The MAC address of the NIC in Host 1
B.The MAC address of the NIC in server 1
C.The MAC address of the Fa0/0 interface of router R1
D.The MAC address of the s0/0/0 interface of the router R2

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5.多項(xiàng)選擇題By default, each port in a Cisco Catalyst switch is assigned to VLAN1. Which two recommendations are key to avoid unauthorized management access? （）

A.Create an additional ACL to block the access to VLAN 1.
B.Move the management VLAN to something other than default.
C.Move all ports to another VLAN and deactivate the default VLAN.
D.Limit the access in the switch using port security configuration.
E.Use static VLAN in trunks and access ports to restrict connections.
F.Shutdown all unused ports in the Catalyst switch.

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