WorksheetsSwitching, layering
Total questions: 52
Worksheet time: 26mins
What is an Endpoint or Host?
A unit of data transmission
A machine running user application
A physical communication channel
A collection of interconnected machines
What is a Packet?
A unique name given to a machine
A machine that processes packets
A unit of data transmission
A physical communication channel
What is a Link?
A machine running user application
A unit of data transmission
A physical communication channel
A unique name given to a machine
What is a Router?
A machine that processes packets
A collection of interconnected machines
A unique name given to a machine
A unit of data transmission
What is a Network?
A unique name given to a machine
A collection of interconnected machines
A machine running user application
A physical communication channel
What is an Address?
A unit of data transmission
A machine that processes packets
A unique name given to a machine
A physical communication channel
What is one of the main topics covered in today's lecture?
The history of the Internet
How Internet communication works
Internet security protocols
Social media trends
Which aspect of Internet communication involves understanding how data is moved between links?
Links
Endpoints
Routers
Servers
What is a key focus when diving deeper into Internet communication?
Designing websites
Understanding physical communication links
Creating mobile apps
Developing software
What is another topic mentioned in the lecture besides Internet communication?
Internet history
How to measure the Internet
Cybersecurity
Cloud computing
How do digital computers communicate?
With letters and numbers
With 1s and 0s
With images and sounds
With colors and shapes
What is a challenge in transmitting 1s and 0s in a network?
Storage problem
Encoding and decoding problem
Power supply problem
Speed problem
What type of signaling is often used in physical transmission on a single link?
Digital
Analog
Binary
Optical
What process is used to convert bits to signals in physical transmission?
Decoding
Demodulation
Modulation
Encryption
What is the process of converting signals back to digital form called?
Encoding
Decoding
Modulation
Transmission
What type of signaling is often used in physical transmission?
Digital
Binary
Analog
Quantum
What process is used to convert bits to signals in physical transmission?
Decoding
Modulation
Encryption
Compression
What is the process of converting signals back to digital called?
Encoding
Modulation
Decoding
Transcoding
What type of signals are physical signaling methods like light and AC voltages often considered?
Digital
Analog
Binary
Optical
What process is used to convert bits to signals through modulation of the physical characteristics of signals?
Decoding
Encryption
Encoding
Compression
What is the process of converting signals back to digital by decoding physical signals called?
Encoding
Modulation
Decoding
Transmission
What type of signals are physical signaling methods like light and AC voltages often classified as?
Digital
Analog
Binary
Optical
What process is used to convert bits to signals by modifying the physical characteristics of signals?
Decoding
Demodulation
Modulation
Encryption
What is the process of converting signals back to digital form called?
Encoding
Decoding
Modulation
Transmission
What term is used to denote physically moving data from one link to another?
Routing
Switching
Transmitting
Broadcasting
What do routers need to move data across links?
Protocols
Switching
Encryption
Compression
What is the function of a router in a network?
To store data
To move data across links
To encrypt data
To compress data
Which of the following is a method of switching used in host applications to transfer data?
Circuit Switching
Message Switching
Packet Switching
Data Switching
What is circuit switching?
A method of data transmission where the full path of connected links is set up from the origin to the destination.
A method of data transmission where data is sent in packets without a dedicated path.
A method of data transmission using wireless signals.
A method of data transmission that uses satellite links.
Which of the following is an example of circuit switching?
Telephone network
Internet
Satellite communication
Radio broadcasting
What is the first step in circuit switching?
Data transmission begins
Control message sets up a path from origin to destination
Source releases the circuit
Entire path remains allocated to the transmission
What happens after the accept signal in circuit switching?
Control message sets up a path
Source releases the circuit
Data transmission begins
Entire path remains allocated to the transmission
What remains allocated to the transmission in circuit switching?
Only the used path
Entire path
No path
Partial path
What occurs when the transmission is complete in circuit switching?
Data transmission begins
Control message sets up a path
Source releases the circuit
Accept signal informs source
What does the header in message switching typically include?
Source address
Destination address
Message content
Network protocol
How does a message travel through a network in message switching?
All links are reserved at the same time
It hops from node to node
It uses a single dedicated path
It broadcasts to all nodes
What is the analogy used for message switching?
Telephone service
Internet browsing
Postal service
Television broadcasting
What happens when the entire message is received at a router in message switching?
The message is discarded
The next step and link in its journey are selected
The message is sent back to the sender
The message is encrypted
What occurs if the selected link is busy in message switching?
The message is lost
The message is sent to another router
The message waits in a queue
The message is split into smaller parts
In store and forward switching, what does the router do before sending the first bit of the message on the outgoing link?
Encrypts the message
Waits for all bits of a message to arrive on the incoming link
Compresses the message
Sends the message immediately
What is the alternative to store and forward switching?
Packet switching
Circuit switching
Cut-through switching
Message switching
What is the main concept illustrated in the diagram?
Message Switching
Circuit Switching
Packet Switching
Frequency Switching
What type of delay is shown in the diagram related to message switching?
Propagation Delay
Store and Forward Delay
Transmission Delay
Processing Delay
What are messages split into in packet switching?
Bytes
Packets
Frames
Segments
What is a characteristic of packets in packet switching?
Packets are sent all at once
Packets are not numbered
Packets have a maximum length
Packets are not addressed
What does pipelining in packet switching provide?
Lower utilization of link resources
Higher utilization of link resources
No utilization of link resources
Equal utilization of link resources
What is the main concept illustrated in the diagram?
Circuit switching
Packet switching
Message switching
Frequency switching
What type of delay is shown in the diagram?
Propagation delay
Transmission delay
Store and forward delay
Processing delay
What type of packet switching does the Internet use?
Circuit switching
Store-and-forward packet switching
Message switching
Virtual circuit switching
What is a characteristic of circuit switching compared to packet switching?
Circuit switching can start transmitting data right away.
Circuit switching does not require admission control.
Circuit switching incurs an initial delay in setting up resources.
Circuit switching makes resource reservation decisions per packet.
Which type of switching does not reserve resources for the conversation?
Circuit switching
Packet switching
Message switching
Telephone switching
Why are telephone networks harder to build compared to packet-switched networks?
They require fewer guarantees.
They are less reliable.
They need more guarantees and reliability.
They use packet switching.
