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What does a bridge do when it receives a packet that is destined for a system on the same network segment from which the packet arrived?
jamaican
Which option shows the correct order of PDU de-encapsulation when a device receives messages from a network?
Frame, packet, segment, and lastly data shows the correct order of PDU de-encapsulation when a device receives messages from a network.
Is IP encapsulated data referred to as a segment?
Yes. Encapsulated data that moves through a packet is referred to as a segment. A packet is a bundle of information sent across a network in a structured fashion.
When creating a packet how does the network layer determine the size of the packet?
The Network layer (Layer 3, typically IP) will receive a segment from the Transport layer (Layer 4, typically TCP or UDP), and will add its own header to it to create a packet. The size of the packet will thus always be the size of the segment plus the Network layer header, the same as when the next layer down (the Data Link layer, layer 2, typically Ethernet) encapsulates the packet into a frame for transmission.
A network administrator is using an application that is monitoring packets on the network and sees an EIGRP update packet What is the purpose of the update packet?
bobo The packet is sent to discover neighbors within the EIGRP network. The packet is sent to search for network devices within an EIGRP network. The packet is used to propagate routing information within the EIGRP network. The packet is used to send an unreachable reply to another router within the EIGRP network.
What is the term used to describe a discrete unit of data that is sent from one node to another over the network?
Packet
What is the unit of information called when a network adapter adds the source and destination MAC address to the segment of data before it is transmitted on the network?
Packet
What does a router do when receives a packet from a unknown network?
When a router receives a packet from an unknown network, it first checks its routing table to determine if there is a known route for the destination address. If no route is found, the router typically drops the packet and may send an ICMP "Destination Unreachable" message back to the sender. Alternatively, if configured, the router could forward the packet to a default gateway or a specified next-hop address. This behavior ensures that the router efficiently manages traffic and maintains network security.
How subnet mask is used by a router?
A subnet mask is used by a router to determine which part of an IP address identifies the network and which part identifies the host. When a router receives a packet, it applies the subnet mask to the destination IP address to ascertain if the destination is within the same local network or if it needs to route the packet to a different network. This helps in efficient routing and ensures that data packets are sent to the correct destination. Additionally, it allows routers to manage and segment network traffic effectively.
What three processes does a router execute when it receives a packet from one network that is destined for another network?
decapsulates the Layer 3 packet by stripping off the Layer 2 frame header uses the destination IP Address in the IP header to look up the next-hop address in the routing table encapsulates the Layer 3 packet into the new Layer 2 frame and forwards it out the exit interface
Why do you need a network?
The network layer is responsible for addressing nodes in a logical way. It is also responsible for making decisions on routing a packet from one network to another. Without the network layer it would not be possible to send a packet outside of your own local network.
What is packet?
In computer networking, a packet is a segment of data that is sent over a network from one device, including a computer, to another device. It contains the size, data, type, source. and destination that helps it get to the right destination.
