41 IP Utilities Wireshark(Ethereal) –captures IP packets on a network interface (usually Ethernet NIC)Packets & higher-layer messages can be displayed and analyzedtcpdump is another command-line based tool for packet analysis
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42 CCNA Questions Q.1 Which layer provides logical addressing that routers will use for path determination? Q.2 Which layer is responsible for converting data packets into electrical signal? Q.3 Which layer combines bits into bytes and bytes into frames, uses MAC addressing, and provides error detection? Q.4 Which layer is used for reliable communication between end