Answer:
The answer is B: The oath they took when they began their career.
Explanation:
Answer:particular layer N, a PDU is a complete message that implements the protocol at that layer. However, when this “layer N PDU” is passed down to layer N-1, it becomes the data that the layer N-1 protocol is supposed to service. Thus, the layer N protocol data unit (PDU) is called the layer N-1 service data unit (SDU). The job of layer N-1 is to transport this SDU, which it does in turn by placing the layer N SDU into its own PDU format, preceding the SDU with its own headers and appending footers as necessary. This process is called data encapsulation, because the entire contents of the higher-layer message are encapsulated as the data payload of the message at the lower layer.
What does layer N-1 do with its PDU? It of course passes it down to the next lower layer, where it is treated as a layer N-2 SDU. Layer N-2 creates a layer N-2 PDU containing the layer N-1 SDU and layer N-2’s headers and footers. And the so the process continues, all the way down to the physical layer. In the theoretical model, what you end up with is a message at layer 1 that consists of application-layer data that is encapsulated with headers and/or footers from each of layers 7 through
Explanation:
The commands are found in the ribbon.
Answer:
Explanation:
a. To initiate a DMA transfer, the CPU first sets up the DMA registers, which contain a pointer to the source of a transfer, a pointer to the destination of the transfer, and a counter of the number of bytes to be transferred. Then the DMA controller proceeds to place addresses on the bus to perform transfers, while the CPU is available to accomplish other work.
b. Once the entire transfer is finished, the DMA controller interrupts the CPU.
c. Both the CPU and the DMA controller are bus masters. A problem would be created if both the
CPU and the DMA controller want to access the memory at the same time. Accordingly, the CPU should be momentarily prevented from accessing main memory when the DMA controller seizes the memory bus. However, if the CPU is still allowed to access data in its primary and secondary caches, a coherency issue may be created if both the CPU and the DMA controller update the same memory locations.
Answer:
ok ask the teacher what the answers are first ok
Explanation:Add me on discord