Protocols and Models Flashcards
Protocols must account for the following: ____, ____, ____, ____.
- An identified SENDER and RECEIVER
- Common LANGUAGE or MESSAGE FORMAT
- SPEED and TIMING of delivery
- CONFIRMATION and ACKNOWLEDGMENT
What is encoding ?
Encoding is the process of converting information into another acceptable form for transmission
What layer does the most of encoding?
Data Link Layer
What is the opposite of encoding?
Decoding
What are the Maximum Transfer Unit (MTU) of ethernet, wireless, and token ring?
- Ethernet: 1500 Bytes
- Wireless: 2304 Bytes
- Token Ring: 4464 Bytes
Devices will drop oversized frames/packets. True or False?
True.
Undersized will cause errors
Broadcasts are used in IPv4, but are NOT an option for IPv6. True or False?
True.
IPv6 has “anycast”
List all OSI Model Layers
Application, Presentation, Session, Transport, Network, Data link, Physical
List all TCP/IP Model Layers
Application, Transport, Internet, Network Access
What are the benefits of using a layered model?
- Provides a common language to describe network functions and capabilities
- Prevent technology changes in one layer from affecting other layers
- Foster competition (because products from different vendors can work together)
- Assist in protocol design (because protocols that operate at specific layer have defined information that they act upon a defined interface to other layers
Why segmenting data?
It increases speed and efficiency
What is encapsulation?
Encapsulation is the process where protocols add their information to the data
When devices are connected on the same ethernet network, the data link frame will use the MAC address or the IP address of the destination device?
It uses the actual MAC address of the destination NIC
What are the 3 delivery options for IPv4?
- Unicast
- Multicast
- Broadcast
Network protocols can be implemented in ___, ___ or both.
software, hardware
