cisco 200-301 videos

cisco 200-301 videos

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Figure 5.21 below shows an IP phone with some typical connections. The device needs power and ports for a headset but there are also two IP ports, one for the phone to connect to the network switch and one to connect to the desktop PC. Unicast data: data sent to one device Multicast data: data sent to a group of devices Broadcast data: data sent to all devices Router Solicitation messages are sent by hosts when interfaces are enabled for IPv6. These messages are used to request that routers on the local segment generate RA messages immediately, rather than at the next scheduled RA interval. Figure 3.12 below illustrates a wire capture of an RS message: SwitchA#delete vlan.dat Delete filename [vlan.dat]? Any delay in passing traffic is known as latency. Cisco switches offer three ways to switch the traffic, depending upon how thoroughly you want the frame to be checked before it is passed on. The more checking performed, the more latency you will introduce to the switch. The three switching modes to choose from are: You can’t use the .64 subnet because this is already in use. You are now free to use either of the other two subnets. If you needed only one, you could chop down the remaining one to give you more subnets, each with fewer hosts. Advanced Features of Firewalls With windowing, each system agrees upon how much data is to be sent before an acknowledgment is required. This “window” opens and closes as data moves along in order to maintain a constant flow. Topology Here is the answer to Exercise 1: The Subnetting Secrets Chart 1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5, Fa0/6, Fa0/7, Fa0/8, Fa0/9, Fa0/10, Fa0/11, Fa0/12, Fa0/13,cisco 200-301 videos, The lifetime value for each advertised prefix is also provided to the nodes and may contain a value from 0 to infinite. When nodes receive the prefix, they validate the lifetime value and cease using the prefix when the lifetime value reaches 0. Alternatively, if a value of infinite is received for a particular prefix, the network hosts will never cease using that prefix. Each advertised prefix contains two-lifetime values: the valid lifetime value and the preferred lifetime value.

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