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Questions and Answers
What happens to a file before it is sent over the internet?
What happens to a file before it is sent over the internet?
- It is split into smaller sections called packets. (correct)
- It is converted into analog signals.
- It is compressed into a single format.
- It is encrypted for security.
Which of the following best describes packet switching?
Which of the following best describes packet switching?
- A technique that ensures packets take the longest route possible.
- A method where large messages are sent as one continuous piece.
- A process that requires manual sorting of packets at the destination.
- A system that allows messages to be sent reliably over various routes. (correct)
How is the information in a packet represented?
How is the information in a packet represented?
- As digital data consisting of zeros and ones. (correct)
- As a series of visual images.
- As encoded audio signals.
- As long text paragraphs.
What is the maximum approximate size of a packet mentioned?
What is the maximum approximate size of a packet mentioned?
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What must happen to packets when they reach their destination?
What must happen to packets when they reach their destination?
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How does your computer manage the process of packet creation and assembly?
How does your computer manage the process of packet creation and assembly?
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What is a key feature of packet addressing?
What is a key feature of packet addressing?
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Which type of data can be sent using packet switching?
Which type of data can be sent using packet switching?
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Study Notes
Internet Messaging Basics
- Being connected to the internet allows for sending and receiving various types of messages, including text, audio, video, and photographs.
- All digital files, regardless of type, are treated as digital data comprising zeros and ones by computers.
- File transfer over the internet is standardized; all files are sent in the same manner.
Message Packetization
- Messages are divided into smaller sections known as packets before transmission.
- This packetization process facilitates easier handling by network equipment and improves data management.
- Each packet typically contains about 550 characters of data.
- Inside a packet, the data is encoded in binary (zeros and ones).
Packet Transmission and Assembly
- When packets reach their destination, they are reassembled into the original message.
- Users do not need to manually create or reassemble packets; this process is automated by the computer.
- Large messages, like photographs, can generate thousands of packets.
- Each packet is addressed to the intended recipient and includes a numbering system for correct reassembly.
Packet Switching
- Packet switching is a key concept used for reliable message transfer over the internet.
- As packets travel across the internet, they are switched onto the clearest available route, optimizing delivery time.
- This method ensures that nearly all messages arrive at their destination intact.
- Packet switching is not limited to the internet; it is also utilized in local area networks.
- Packet switching operates automatically within network hardware and is engaged whenever a user logs into a network.
Model Building
- A hands-on model will be built to demonstrate the process of how messages are sent over the internet.
- The model is designed to visually replicate the functions of packet switching, emphasizing its complexity broken down into manageable steps.
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