New terms and their definitions: Course module Android: a mobile operating system based on Linux Application

IP datagram: A highly structured series of fields that are strictly defined
IP masquerading: The NAT obscures the sender's IP address from the receiver
IP options field: An optional field and is used to set special characteristics for datagrams primarily used for testing purposes
L
Line coding: Modulation used for computer networks
Listen: It means that a TCP socket is ready and listening for incoming connections
Local Area Network (LAN): A single network in which multiple devices are connected
M
MAC(Media Access Control) address: A globally unique identifier attached to an individual network interface. It's a 48-bit number normally represented by six groupings of two hexadecimal numbers
Modulation: A way of varying the voltage of a constant electrical charge moving across a standard copper network cable
Multicast frame: If the least significant bit in the first octet of a destination address is set to one, it means you're dealing with a multicast frame. A multicast frame is similarly set to all devices on the local network signal, and it will be accepted or discarded by each device depending on criteria aside from their own hardware MAC address
Multiplexing: It means that nodes on the network have the ability to direct traffic toward many different receiving services
MX record: It stands for mail exchange and this resource record is used in order to deliver email to the correct server
N
Name resolution: This process of using DNS to turn a domain name into an IP address
Network Address Translation (NAT): A mitigation tool that lets organizations use one public IP address and many private IP addresses within the network
Network layer: It's the layer that allows different networks to communicate with each other through devices known as routers. It is responsible for getting data delivered across a collection of networks
Network port: The physical connector to be able to connect a device to the network. This may be attached directly to a device on a computer network, or could also be located on a wall or on a patch panel
Network switch: It is a level 2 or data link device that can connect to many devices so they can communicate. It can inspect the contents of the Ethernet protocol data being sent around the network, determine which system the data is intended for and then only send that data to that one system
Next hop: The IP address of the next router that should receive data intended for the destination networking question or this could just state the network is directly connected and that there aren't any additional hops needed. Defined as part of the routing table