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In networking, PDU means "protocol data unit", and it is the generic name of the "packets" of data used at different levels of the network. Using the numbering of the OSI layers:
At layer 2, the PDUs are called "frame". Example: An Ethernet frame, a frame-relay frame.
At layer 3, the PDUs are called "packets". Example: An IP packet.
At layer 4, the PDUs are called "segments". Example: A TCP segment, a UDP segment.
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The PDU at the Network layer is called?
The PDU at the Network layer is referred to as a packet. A PDU at the Data Link Layer is referred to as a frame.
What are the parts of a pdu that are always present in any pdu?
The Header and the payload The Header and the payload
What is the layer 4 UDP PDU called?
Datagrams TCP/IP layer 4 PDU's are called segments...
The PDU at the Transport layer is called?
The PDU (protocol data unit) @ transport layer (e.g. TCP or UDP) is called as 'segment' .
The Application layer separates data into or discrete amounts of data?
PDU (protocol data units) -Yuriy-
What is pdu encapsulation?
protocol data unit
What is the name of the PDU at the Transport layer?
Frames
What is it called when only one PDU can cross a wire in each direction at any given time?
LLC in LAN Technologies (4) LLC protocol - HDLC protocol Type 3 of operation - each transmitted PDU is acknowledged: - a new unnumbered PDU is defined: Acknowledge Connectionless (AC) PDU - user data are sent in AC command PDUs an must be ack using an AC response PDU. - to guard against the lost PDUs, a 1-bit sequence number is used: the sender alternates 0 and 1… - only one PDU in each direction may be outstanding at any time
What is the layer 4 TCP PDU called?
Segements
What is the PDU of the network layer?
What is a PDU? corruption of a frame during transmission data reassembled at the destination retransmitted packets due to lost communication a layer specific encapsulation
Can you plug a ups into a pdu?
yes but not the other way around
Explain the difference between a PDU and a datagram?
A PDU (Protocol Data Unit) is defined by which layer it is in. In the physical layer and network layer, it is synonymous with the packet, in the data link layer, it is the frame. In the transport layer, it is a datagram for UDP. A datagram holds one or more PDU's, as it is the basic unit of transferring information via packet switching.
