30 Questions
What is necessary for two devices to communicate?
They must use the same rules
What is the message source in communication?
The device that sends the message
What are the rules that govern communication?
Protocols
What is the purpose of protocols in communication?
To ensure successful delivery of messages
What is the channel in communication?
The media that carries the message
What are the requirements for successful communication?
Identified sender, common language, speed, and confirmation
What is the primary function of the Hypertext Transfer Protocol (HTTP)?
Governs the way a web server and a web client interact
Which protocol is responsible for providing guaranteed delivery?
Transmission Control Protocol (TCP)
What is a protocol suite?
A group of inter-related protocols necessary to perform a communication function
Which protocol suite is maintained by the Internet Engineering Task Force (IETF)?
Internet Protocol Suite or TCP/IP
At which layers do TCP/IP protocols operate?
Application, transport, and internet layers
What is the primary function of the Internet Protocol (IP)?
Delivers messages globally from the sender to the receiver
What is the most common LAN protocol?
Ethernet
What is the TCP/IP protocol suite?
A open standard protocol suite that is freely available to the public
What is the purpose of standards organizations?
To develop and promote the concept of open standards
What does the TCP/IP protocol suite include?
Many protocols
What is the advantage of open standards?
To encourage innovation
What is the role of a client in the TCP/IP communication process?
To de-encapsulate the web page for the web browser
What is the function of the default gateway in a LAN?
To act as a 'door' to remote locations
What happens if devices on the LAN do not have the default gateway address?
Their traffic will be confined to the LAN only
What is the role of Layer 2 in the routing process?
To forward traffic to the default gateway
What type of addressing is used in the data link layer?
Local addressing
What is the source MAC address in the first segment?
AA-AA-AA-AA-AA-AA
What remains the same throughout the routing process?
L3 addressing
What happens to a layer's header when it completes its process?
It's stripped off and passed to the next layer
What is the order of the data stream from top to bottom?
Bits, Frame, Packet, Segment, Data
What is the primary responsibility of the Network Layer?
Delivering IP packets from source to destination
What do the Data Link Layer source and destination addresses identify?
Network interfaces on the same network
What is the purpose of the IP address's network portion or prefix?
It indicates the network group which the IP address is a member
What is the host portion of an IPv4 address also known as in IPv6?
Interface ID
Learn about the fundamental protocols that govern communication over the internet, including HTTP, TCP, IP, and Ethernet. Understand their roles and functions in delivering data packets.
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