ICND1 – Drag and Drop
+ ARP: A PC sends packets to the default gateway IP address the first time since the PC turned on.
+ ICMP: The network administrator is checking basic IP connectivity from a workstation to a server.
+ DNS: The TCP/IP protocol stack must find an IP address for packets destined for a URL.
+ DHCP: A network device will automatically assign IP addresses to workstations.
+ NAT: A PC with address 10.1.5.10 must access devices on the Internet.
+ DHCP: Only routers and servers require static IP addresses. Easy IP administration is required.
+ DNS: A PC only knows a server as MediaServer. IP needs to send data to that server.
+ OSPF: A protocol is needed to replace current static routes with automatic route updates.
+ SNMP: a protocol used to monitor and manage network devices
+ FTP: a reliable, connection-oriented service that uses TCP to transfer files between systems
+ TFTP: a connectionless service that uses UDP to transfer files between systems
+ DNS: a protocol that converts human-readable names into machine-readable addresses
+ DHCP: used to assign IP addresses automatically and set parameters such as subnet mask and default gateway
|service password-encryption||encrypt all clear text passwords|
|line console 0
|protect access to the user mode prompt|
|enable secret noWay1n4u||set privileged mode encrypted password|
|line vty 0 4
|set password to allow Telnet connections|
|enable password uwi11NeverNo||set privileged mode clear text password|
+ application layer: SMTP
+ transport layer: TCP
+ internet layer: IP
+ network access layer: Ethernet