Which protocol is an open standard protocol framework that is commonly used in VPNs,to provid secure end-to-end communication?（）..

第1题

[单选题] Which protocol is an open standard protocol frame work that is commonly used in VPNs，to provid secureend-to-end communication？（）

A、L2TP B、IPsec C、PPTP D、RSA

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第2题

[单选题] Which protocol is an open standard protocol framework that is commonly used in VPNs,to provid secure end-to-end communication?（）

A、L2TP B、IPsec C、PPTP D、RSA

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第3题

[单选题] Which protocol is an open standard protocol framework that is commonly used in VPNs,to provid secure end-to-end communication?（）

A、L2TP B、IPsec C、PPTP D、RSA

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第4题

[单选题] Which protocol is an open standard protocol framework that is commonly used in VPNs,to provid secure end-to-end communication?（）

A、L2TP B、IPsec C、PPTP D、RSA

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第5题

[多选题] Part of the job as a network administrator is being able to make a distinction between routed protocols and routing protocols. Which of the following statements is true regarding them?（）

A、A routing protocol is assigned to an interface and determines the method of packet delivery. B、A routed protocol is assigned to an interface and determines the method of packet delivery. C、A routing protocol determines the path of a packet through a network. D、A routed protocol determines the path of a packet through a network. E、A routing protocol operates at the transport layer of the OSI model. F、A routed protocol updates the routing table of a router.

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第6题

[多选题] Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）

A、supports VLSM B、link - state routing protocol C、operati on is similar to BGP D、supports two routing levels within an autonomous system

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第7题

[单选题] Which of the following is an EGP routing protocol?（）

A、IGP B、OSPF C、BGP D、RIP

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第8题

[] An administrator is using a protocol analyzer to monitor traffic between two servers. However, the only traffic that appears is broadcast and traffic originating from the administrator's PC. Which of the following devices is the administrator plugged into? （） An administrator is using a protocol analyzer to monitor traffic between two servers. However, the only traffic that appears is broadcast and traffic originating from the administrator's PC. Which of the following devices is the administrator plugged into? （）

A、A.Hub B、B. Bridge C、C. Switch D、D. Router

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第9题

[多选题] Which two of these are characteristics of the 802.1Q protocol?（）

A、it is a layer 2 messaging protocol which maintains vlan configurations across network. B、it includes an 8-bit field which specifies the priority of a frame. C、it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes. D、it modifies the 802.3 frame header,and thus requires that the FCS be recomputed. E、it is a trunking protocol capable of carring untagged frames.

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Which protocol is an open standard protocol framework that is commonly used in VPNs,to provid secure end-to-end communication?（）

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