A.to prevent unauthorized Telnet access to a switch port
B.to limit the number of Layer 2 broadcasts on a particular switch port
C.to prevent unauthorized hosts from accessing the LAN
D.to protect the IP and MAC address of the switch and associated ports
E.to block unauthorized access to the switch management interfaces over common TCP ports
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A.a switch with a trunk link that is configured between the switches
B.a router with an IP address on the physical interface that is connected to the switch
C.a switch with an access link that is configured between the switches
D.a router with subinterfaces configured on the physical interface that is connected to the switch
A.Flash,TFTPserver,ROM
B.Flash,NVRAM,ROM
C.ROM,NVRAM,TFTPserver
D.NVRAM,TFTPserver,ROM
E.TFTPserver,Flash,NVRAM
根據下圖,Switch1剛剛完成重啟,并完成上電自檢。HostA發(fā)送它的第一個偵到HostC,交換機首先會對switching table做什么操作()
A.Switch1會添加192.168.23.4到switchingtable
B.Switch1添加192.168.23.12到switchingtable
C.Switch1添加000A 8A47.E612到switchingtable
D.Switch1添加000B DB95.2EE9到switchingtable
A.IR
B.DSSS
C.FHSS
D.DSSS and FHSS
E.IR,FHSS,and DSSS
A.permit all packets matching the first three octets of the source address to all destinations
B.permit all packets matching the last octet of the destination address and accept all source addresses
C.permit all packets from the third subnet of the network address to all destinations
D.permit all packets matching the host bits in the source address to all destinations
E.permit all packets to destinations matching the first three octets in the destination address
A.RIPng
B.OSPFv3
C.static
D.IS-ISfor IPv6
根據下圖,R1能通告給R2的最有效的匯總是?()
A.172.1.0.0/22
B.172.1.0.0/21
C.172.1.4.0/22
D.172.1.4.0/24 172.1.5.0/24 172.1.6.0/24 172.1.7.0/24
E.172.1.4.0/25 172.1.4.128/25 172.1.5.0/24 172.1.6.0/24 172.1.7.0/24
A.6to4 tunneling
B.VPN tunneling
C.GRE tunneling
D.ISATAP tunneling
E.PPP tunneling
F.Teredo tunneling
A.VTP is disabled on this switch.
B.The switch can create, change, and delete VLANs.
C.The switch learns VLAN information but does not save it to NVRAM.
D.The switch can create VLANs locally but will not forward this information to other switches.
E.The switch learns VLAN information and updates the local VLAN data base in NVRAM.
A.4to6 routing
B.6to4 routing
C.binary routing
D.dual-stack routing
E.NextGen routing
最新試題
請參見圖示。網絡中的主機A 正在向主機B 發(fā)送數據段。有關所交換的數據段的流量控制如圖所示。下列關于此通信的陳述,哪兩項是正確的?()
請參見圖示。已啟用路由器的NAT 功能供PC 訪問Internet??梢詾槁酚善鹘涌赟0/0/0分配下列哪一個IP 地址?()
請參見圖示。主機A 嘗試與主機C 建立TCP/IP 會話。在嘗試期間,路由器Y 的FastEthernet 接口fa0/1捕獲到一個幀。捕獲的幀中包含源IP 地址為172.16.1.5而目的IP 地址為172.16.7.24的數據包。捕獲該幀時,它的源MAC 地址是什么?()
路由器使用哪一項信息來確定源主機和目的主機之間的路徑?()
請參見圖示。網絡中的所有設備均使用默認配置。此拓撲中需要多少個邏輯地址范圍?()
請參見圖示。RouterB 已經過正確配置。RouterA 的以太網接口Fa0/0已使用如圖所示的命令進行配置。但是,從RouterA 的Fa0/0接口無法成功ping 通RouterB 的Fa0/0接口。應在RouterA 上采取什么措施來解決此問題?()
請參見圖示。哪種邏輯拓撲是對圖示網絡的準確描述?()
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請參見圖示。主機X 和主機Y 與本地網絡的通信受到限制。此問題的原因是什么?()
請參見圖示。某用戶想要查看當前的配置。圖中所示為ipconfig/all 命令的輸出。從此輸出可以得到哪三項結論?()