Chapter 1: The TCP/IP and OSI Models Flashcards
Examples of TCP/ IP transport layer protocols.
TCP and UDP
TCP/ IP data link layer protocols.
Ethernet and PPP.
An HTTP request to TCP for information is what type of interaction?
Adjacent-layer interaction.
TCP segment marking, transmission and subsequent TCP acknowledgement is what interaction?
Same-layer interaction.
A web server adding to a web page a TCP header, IP header and then data link header & trailer, is an example of what process?
Data encapsulation.
Encapsulating data inside data link layer headers and trailers produces what entity?
A frame.
Which OSI layer defines the functions of logical network-wide addressing and routing?
The Network Layer 3.
Which OSI layer defines the standards for cabling and connectors?
The Physical Layer 1.
A logical grouping of bytes that includes the network layer header and encapsulated data, but specifically does not include any headers and trailers below the network layer.
A packet.
A generic reference to network services, typically WAN services, in which the service examines the contents of the transmitted data to make some type of forwarding decision.
Packet switching.
A generic term referring to the header defined by some layer of a networking model, and the data encapsulated by the header (and possibly trailer) of that layer, but specifically not including any lower-layer headers and trailers.
A PDU Protocol Data Unit.
In TCP, a term used to describe a TCP header and its encapsulated data.
A segment.
OSI Layer 1: Name, PDU
Physical, Bits
OSI Layer 2: Name, PDU
Data Link, Frames
OSI Layer 3: Name, PDU
Network, Packets
OSI Layer 4: Name, PDU
Transport, Segments
OSI Layer 5: Name, PDU
Session, Data
OSI Layer 6: Name, PDU
Presentation, Data
OSI Layer 7: Name, PDU
Application, Data
Which OSI Layer provides a user interface?
The Application layer
Which OSI Layer handles processing such as encryption?
The Presentation layer
Which OSI Layer keeps different applications’ data separate?
The Session layer
Which OSI Layer provides error correction before re-transmit?
The Transport layer
Which OSI Layer performs error detection but not correction?
The Data-Link layer
Which OSI Layer provides reliable or unreliable delivery?
The Transport layer
Which OSI Layer combines packets into bytes and bytes into frames?
The Data-Link layer
Which OSI Layer provides logical addressing, which routers use for path determination?
The Network layer
Which OSI Layer provides access to media using MAC addresses?
The Data-Link layer
Which OSI Layer specifies voltage, wire speed and pinout of cables?
The Physical layer
