多項選擇題

Refer to the diagram. All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? （）

A.The subnet mask in use is 255.255.255.192.
B.The subnet mask in use is 255.255.255.128.
C.The IP address 172.16.1.25 can be assigned to hosts in VLAN1
D.The IP address 172.16.1.205 can be assigned to hosts in VLAN1
E.The LAN interface of the router is configured with one IP address.
F.The LAN interface of the router is configured with multiple IP addresses.


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1.單項選擇題What is the alternative notation for the IPV6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72?（）

A.B514：82C3：0029：：EC7A：0000：EC72
B.B514：82C3：0029：EC7A：EC72
C.B514：82C3：：0029：EC7A：0：EC72
D.B514：82C3：：0029：EC7A：EC72

2.多項選擇題Which two benefits are provided by using a hierarchical addressing network addressing scheme? （）

A.reduces routing table entries
B.auto-negotiation of media rates
C.efficient utilization of MAC addresses
D.dedicated communications between devices
E.ease of management and troubleshooting

3.多項選擇題What are three advantages of VLANs? （）

A.VLANs establish broadcast domains in switched networks.
B.VLANs utilize packet filtering to enhance network security.
C.VLANs provide a method of conserving IP addresses in large networks.
D.VLANs provide a low-latency internetworking alternative to routed networks.
E.VLANs allow access to network services based on department, not physical location.
F.VLANs can greatly simplify adding, moving, or changing hosts on the network.

4.單項選擇題Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?（）

A.the switch with the lowest MAC address
B.the switch with the higest MAC address
C.the switch witch the higest IP address
D.the switch with the lowest IP address

5.多項選擇題

Refer to the exhibit.Which two statements are true of the interfaces on switch1?（）


A.AhubisconnecteddirectlytoFastEthernet0/5
B.FastEthernet0/1isconfiguredasatrunklink.
C.FastEthernet0/5hasstaticallyassignedmacaddress
D.InterfaceFastEthernet0/2hasbeendisable.
E.MultipledevicesareconnecteddirectlytoFastEthernet0/1.
F.FastEthernet0/1isconnectedtoahostwithmultiplenetworkinterfacecards.

6.多項選擇題Which two of these statements regarding RSTP are correct? （）

A.RSTP cannot operate with PVST+.
B.RSTP defines new port roles.
C.RSTP defines no new port states.
D.RSTP is a proprietary implementation of IEEE 802.1D STP.
E.RSTP is compatible with the original IEEE 802.1D STP.

7.多項選擇題What are the possible trunking modes for a switch port? （）

A.transparent
B.auto
C.on
D.desirable
E.client
F.forwarding

9.單項選擇題

Refer to the exhibit. At the end of an RSTP election process, which access layer switch port will assume the discarding role?（）

A.Switch3, port fa0/1
B.Switch3, port fa0/12
C.Switch4, port fa0/11
D.Switch4, port fa0/2
E.Switch3, port Gi0/1
F.Switch3, port Gi0/2

10.多項選擇題Refer to the exhibit. The output that is shown is generated at a switch. Which three of these statements are true? （）

A.All ports will be in a state of discarding, learning, or forwarding.
B.Thirty VLANs have been configured on this switch.
C.The bridge priority is lower than the default value for spanning tree.
D.All interfaces that are shown are on shared media.
E.All designated ports are in a forwarding state.
F.The switch must be the root bridge for all VLANs on this switch.