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61. David is trying to troubleshoot an issue with his organization’s frame relay network. He logs onto the remote router via a telnet session and issues the command “debug frame-relay lmi.” He fails to see any output, even after a long time. Which of the following should he do to solve the issue?
62. Two computers are communicating using a TCP protocol. The receiving host has failed to receive all of the segments that should be acknowledged. Which of the following can the host do to improve the reliability of this communication session?
63. Dave is trying to telnet to a router at the address 200.124.35.2 from a host with an IP address 203.24.35.2. The telnet session does not initiate and he suspects an issue with the protocol stack. Which of the following commands should he use?
64. David is working as a network advisor at his organization. Of late, a number of users are complaining about slow network performance, intermittent connectivity, and connection loss. A show interface command output verifies that the Ethernet interface configured as 100 Mbps full-duplex has a series of collisions. Which of the following could be the most likely cause of this problem?
65. The following shows the configuration files for routers A and B:hostname A hostname B! !Username B password king username A password king! !interface serial 0 interface serial 0ip address 14.4.4.8 255.255.0.0 ip address 12.3.6.3 255.255.0.0encapsulation ppp encapsulation pppclockrate 56000 ppp authentication chapIn this situation, if you enter the “show interface serial 0” command on router A, which of the following will be displayed?
