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Responsible for network addressing and routing through an internetwork
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Network layer responsibilities
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Protocol responsible for network addressing and routing through an internetwork
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Internet Protocol (IP)
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IOS keyboard shortcut to delete a single character
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Ctrl+D or Backspace
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IP address
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Dotted decimal formatted address consisting of 4 octets
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Distance vector routing protocols
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RIP, IGRP
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Three-way PPP authentication with hashed password
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Challenge Handshake Authentication Protocol (CHAP)
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Bridge Protocol Data Unit (BPDU)
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STP switch configuration protocol
Sent every 2 seconds by default |
CIDR /15
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255.254.0.0
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Command to shutdown an interface
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shutdown
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Responsible for translating and encoding. Ensures that the data transferred from the Application layer of one system can be read by the Application layerof another host.
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Presentation layer responsibilities
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Stops routing loops by setting the problem route to infinity
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Poison reverse
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Connectionless protocol at the Transport layer
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User Datagram Protocol (UDP)
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CIDR /17
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255.255.128.0
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Presentation Layer
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Layer 6
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Command to disable RIP
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Router(config)# no router rip
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