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Which two items are used by a host device when performing an ANDing operation to determine if a destination address is on the same local network?
subnet mask destination IP address
What can be identified by the network layer header?
destination host address
What happens when a node on an Ethernet network is creating a frame and it does not have the destination MAC address?
The node sends out an ARP request with the destination IP address.
What contact does IPv4 make with the destination before sending a packet?
Before sending a packet, IPv4 establishes contact with the destination by using the Address Resolution Protocol (ARP) to map the destination IP address to a MAC (Media Access Control) address on the local network. If the destination is on a different network, IPv4 sends the packet to the default gateway, which is determined by the subnet mask. The packet includes the destination IP address, and the network layer handles routing it through the appropriate paths until it reaches the destination.
What information is found in the network layer header?
The destination host address
Is the default gateway address a portion of the destination IP address?
No, it is not. A destination IP address may be any address, usually on a completely different network. The default gateway address is used to determine where to send packets that need to be routed outside of the current local area network.
Can a routing table in a datagram network have two entries with the same destination address?
In a datagram network, the destination addresses are unique. They cannot be duplicated in the routing table.
Which network components are identified by a Backbone Destination Address and a Backbone Source Address?
The Provider Edge Bridges
What can be identified by examining network layer encapsulation?
IP source and destination address
What is the effect of a router on delimiting broadcast traffic and conserving bandwidth?
Generally speaking, routers will unicast-forward incoming packets which have a network broadcast address as destination, unless they are directly connected to that network/subnet and therefore know that the destination address is a broadcast address
Which part of an ip packet does the router use to make routing decisions?
the network portion of the destination ip address
What is used to reassemble the packets in the correct order at the destination device in a packet-switched data network?
In a packet-switched data network, what is used to reassemble the packets in the correct order at the destination device?
