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Showing posts from July 31, 2009

CCNA 4 Final latest (7/31/2009)

Thanks Khaled ismael. If you have CCNA final exam, please send to me at: nguyenhuuhai.it@gmail.com 1. What are two main components of data confidentiality? (Choose two.)  check sum  digital certificates   encapsulation  encryption  hashing 2. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows "up, line protocol up". The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found? application layer network layer data link layer physical layer 3. Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text? CHAP and HDLC CHAP and PPP PAP and HDLC PAP and PPP 4. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into