Podcast
Questions and Answers
What is the first step in the process of encapsulation?
What is the first step in the process of encapsulation?
Frames are converted to bits during the encapsulation process.
Frames are converted to bits during the encapsulation process.
True
What is a modulator?
What is a modulator?
A device that transfers digital bit streams over an analog bandpass channel.
Time Division Multiplexing (TDM) allows many independent signals to be transmitted over a __________ signal path.
Time Division Multiplexing (TDM) allows many independent signals to be transmitted over a __________ signal path.
Signup and view all the answers
Match the following modulation techniques with their descriptions:
Match the following modulation techniques with their descriptions:
Signup and view all the answers
Study Notes
Encapsulation & Modulation
- Data transmitted on a network is encapsulated in layers, converting user information to data, segments, packets, and frames, ultimately to bits.
- Reliable connections are established between transmitting and receiving hosts.
- Segments are converted to packets/datagrams with logical addresses for routing.
- Packets are further broken down into frames using MAC addresses for local network identification.
- Frames are translated to bits for transmission using digital encoding and clocking schemes.
Modulation Techniques
- Modulation varies properties of a carrier signal to transmit information.
- Passband refers to a range of frequencies/wavelengths that can pass through a filter without attenuation.
- Digital modulation transfers digital bit streams over analog bandpass channels using techniques like Frequency Division Multiplexing (FDM).
- Analog/digital modulation allows multiple signals to share a physical network simultaneously.
- Digital Baseband Modulation uses all available bandwidth to send digital bit streams over baseband channels.
- Time Division Multiplexing (TDM) transmits multiple signals sequentially over a single path.
Encapsulation and Decapsulation
- Encapsulation adds protocol information to data at each layer of the OSI model (e.g. headers and trailers).
- Each layer has a Protocol Data Unit (PDU) that contains control information plus data.
- Decapsulation removes protocol information at each layer during transmission.
- Layers add headers and trailers in encapsulation and remove them in decapsulation.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore essential networking principles focusing on encapsulation and modulation techniques. This quiz covers how data is organized into layers for transmission and the importance of modulation in signal processing. Test your understanding of these fundamental concepts used in computer networks.
