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【正文】 y useful network troubleshooting tool. Using the output in the graphic, select the statements that are true. (Choose two.)A). CDP operates at the network layer of the OSI model.B). The output of this mand displays information about directly connected Cisco devices only.C). The switch is attached to the SanJose1 FastEthernet0/21 interface.D). SanJose1 is running CDP version . E). SanJose1 has two fully operational, cdpenabled Cisco switches directly connected to it.F). SanJose2 is a 2600 series router running several routed protocols.41. The output of the show ip interface brief mand displays Serial0 is up, line protocol is down. Which of the following are possible causes for the line protocol being in the down state? (Choose two.)A). The clock rate is not set on the DTE.B). An incorrect default gateway is set on the router.C). A network is missing from the routing protocol configuration.D). The encapsulation on the Serial0 interface is incorrect.E). Keepalives are not being sent.42. The network administrator shown in the graphic is unable to access the TFTP server attached to the Miami router. Consider only the IP addressing scheme to identify the causes of this problem. (Choose two.)A). The default gateway configured on the network administrator39。s workstation is not a valid host address.B). The IP address configured on interface E1 of the Miami router is not a valid host address.C). The IP address of the TFTP server is a subnetwork address.D) The IP address of the S0 interface of the Detroit router is a broadcast address.E). The IP addresses for the Miami S1 interface and the Detroit S0 are not in the same subnet.Question and Answer: (16%)1. (1). Describe the differences between routed and routing protocols. And give some examples of them. Routed protocol: any network protocol that provides enough information in its network layer address to all a packet to be forwarded from one host to another host based on the addressing scheme. Routed protocol define the field formats within a packet. Packets are generally conveyed from end system to end system.Routing protocol supports a routed protocol by providing mechanisms for sharing routing information. Routing protocol messages move between the routers. A routing protocol allows the routers to municate with other routers to update and maintain tables.Routed protocols transport data across a network and routing protocols allow routers to properly direct the data from one location to another.Routed protocol examples: IP IPX AppleTalkRouting protocol examples: RIP IGRP EIGRP OSPF (2). what are the three types of routing protocol? And give some examples of these three types of routing protocols.Distance vector: RIP IGRP EIGRP linkstate: 2. (1). What are the differences between standard ACL and extended ACL? Standard ACL chacks the sourse address of routed IP packets and pares it against the statements defining the ACL. Either permit or deny access for an entire protocol suite. Extended ACL checks the source and destination IP address and also can check for protocols and TCP or UDP port number. Access can be permitted or denied based on where a packet originated, its destination, the protocol type, the port address, and application. When packets are discarded, some protocols send an echo packet to the sender, which states that the destination was unreachable.(2). Configure and enable an IP access list that stops packets from subnet accesslist 2 deny accesslist 3 deny host ip accessgroup 2 outip accessgroup 3 inPage 12 of 12
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