A.防止敏感用戶和應(yīng)用暴露于不受信任的用戶前
B.網(wǎng)絡(luò)性能提升
C.凈化協(xié)議流量,防止暴露協(xié)議漏洞
D.正確的配置防火墻后,使得安全策略的實現(xiàn)更簡單、可擴(kuò)展、更健壯
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你可能感興趣的試題
A.RIP is an example of distance vector routing protocols.
B.Updates are periodic and include the entire routing table.
C.Routing updates are sent only after topology changes
D.The protocol can be useful in hub-and-spoke and hierarchical networks.
E.Convergence is usually faster than with link state protocols
F.Each router has its own view of the topology
A.10.10.0.0/18 subnetted with mask 255.255.255.252
B.10.10.0.0/25 subnetted with mask 255.255.255.252
C.10.10.0.0/24 subnetted with mask 255.255.255.252
D.10.10.0.0/23 subnetted with mask 255.255.255.252
E.10.10.0.0/16 subnetted with mask 255.255.255.252
A.ICMP消息
B.Traceroute
C.DOS TCP SYN
D.DOS smurf
A.Addresses are allocated after a negotiation between the server and the host to determine the length ofthe agreement.
B.Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address mustbe made ,and another address is then assigned.
C.Addresses are leased to host.A host will usually keep the same address by periodicallycontacting theDHCP sever to renew the lease.
D.Addresses are permanently assigned so that the host uses the same address at all times.
A.spanning-tree backbonefast
B.spanning-tree uplinkfast
C.spanning-tree portfast
D.spanning-tree cost512
A.拒絕服務(wù)器攻擊
B.IP地址欺騙
C.DOS TCP SYN攻擊
D.DOS smurf攻擊
A.802.3ad
B.802.1w
C.802.1Q
D.802.1d
A.每個用戶的挑戰(zhàn)驗證機(jī)制
B.簡化路由器對ACL的處理
C.降低網(wǎng)絡(luò)黑客對網(wǎng)絡(luò)的攻擊機(jī)會
D.在不損害其他安全配置的前提下,可以動態(tài)的讓用戶穿越防火墻
A.data integrity
B.encryption
C.key exchange
D.authentication
A.ping
B.tracert
C.ipconfig
D.show ip route
E.winipcfg
F.show interfaces
最新試題
請參見圖示。網(wǎng)絡(luò)技術(shù)人員試圖確定主機(jī)A 的正確IP 地址配置。以下哪一項是主機(jī)A 的有效配置?()
請參見圖示。從主機(jī)X 發(fā)出的到主機(jī)Y 的tracert 命令已成功。下列哪一項正確地反映了追蹤列表中顯示的中間網(wǎng)絡(luò)設(shè)備的順序?()
OSI 哪一層可提供有序的數(shù)據(jù)重構(gòu)服務(wù)?()
OSI 模型的哪兩項功能在第2層實現(xiàn)?()
請參見圖示。一臺路由器(其路由表如圖所示)收到發(fā)往192.168.1.4的數(shù)據(jù)包。路由器將如何處理該數(shù)據(jù)包?()
請參見圖示。網(wǎng)絡(luò)技術(shù)人員使用圖中所示的連接將主機(jī)A 連接到路由器以創(chuàng)建初始配置。下列有關(guān)此連接的陳述中哪一項正確?()
請參見圖示。某用戶想要查看當(dāng)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(jié)論?()
請參見圖示。主機(jī)B 嘗試與主機(jī)C 建立TCP/IP 會話。在嘗試期間,San Francisco 器由器的FastEthernet 接口fa0/1捕獲到一個幀。捕獲的幀中包含源IP 地址為10.10.1.2而目的IP 地址為10.31.1.20的數(shù)據(jù)包。捕獲該幀時,它的目的MAC 地址是什么?()
以下哪兩種介質(zhì)可提供高達(dá)1Gb/s 的帶寬?()
路由器使用哪一項信息來確定源主機(jī)和目的主機(jī)之間的路徑?()