单选题Which of the following parameters can prevent packet fragmentation on routers when connecting to remote networks？（）A mtuB sb-maxC rfc1323D tcp_mssdflt

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单选题

Which of the following parameters can prevent packet fragmentation on routers when connecting to remote networks？（）

mtu

sb-max

rfc1323

tcp_mssdflt

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第1题

阅读下面的短文，回答问题 [When an IP packet arrives at a router, generally the router looks at the destination address of the packet, and forwards the packet to one of its network interfaces. The forwarding decision is usually done by looking up the destination address from another data structure called a forwarding table. The forwarding table is created by the router using the routing table and possible routing policies existing in the router. The router then creates a table where it lists which networks are accessible through which of the router’s network interfaces. An IP router looks at every IP packet individually and does the forwarding decision on a packet-by-packet basis. If something changes in the router’s routing table, a packet can take a different route from a preceding packet even if it has the same destination.] From the paragraph above，we can see that the router （） a forwarding table according to the routing table and possible routing policies existing in the router. When an IP packet arrives at a router, the （） part of packet is normally checked by the router. An IP router checks every IP Packet individually and makes the forwarding decision based on （）.A．is generating B．generate C．is generated D．generates A．forwarding table B．network interfaces C．routing policies D．destination address A．the destination address and network interfaces B．forwarding table and network interfaces C．the destination address and forward table D．routing policies and routing table

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第2题

An internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ，it will probably pass many (73) until it reaches the router attached to the destination network．A router receives a (74) from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet? The decision is based on optimization： Which of the available (75) is the optimum pathway?A．modemsB．routersC．switchesD．computers

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第3题

A route－based VPN is required for which scenario? ()A. when the remote VPN peer is behind a NAT deviceB. when multiple networks need to be reached across the tunnelC. when the remote VPN peer is a dialup or remote access clientD. when a dynamic routing protocol such as OSPF is required across the VPN

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第4题

Which one of the following statements best explains the split horizon rule used in distance vector routing protocols?()A. Only routers can split boundaries (horizons) between concentric networks.B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.C. Networks can only remain fully converged if all information is sent out all active interfaces.D. Information about a route should not be sent back in the direction from which the original update came.E. Distance vector protocols need fall back routers that are responsible for momentary loops.

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第5题

Routers perform which of the following functions?()A. Packet switchingB. Collision prevention on a LAN segment.C. Packet filteringD. Broadcast domain enlargementE. Broadcast forwardingF. Internetwork communication

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第6题

Which parameter or parameters are used to calculate OSPF cost in cisco routers?()A. Bandwidth,Delay,and MTUB. BandwidthC. Bandwidth and MTUD. Bandwidth , MTU,Reliability,Delay,and Load

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第7题

Which of the following parameters can prevent packet fragmentation on routers when connecting to remote networks？（）A、mtuB、sb-maxC、rfc1323D、tcp_mssdflt

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单选题Which of the following parameters can prevent packet fragmentation on routers when connecting to remote networks？（）A mtuB sb-maxC rfc1323D tcp_mssdflt

题目内容(请给出正确答案)

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