Answer:
Physical layer never need the header/footer.
Explanation:
The physical layer performs the data transfer in bits through the cables. Various Interface cards like Bluetooth, RS-485, GSM, wireless options, etc., are part of the Physical layer. And in other words, the Physical layer ensures the mechanical or electrical interface between the two devices concerned. The data is being transferred in the form of electrical signals, and this implies that the Physical layer never requires a header or footer for its processing. Though, the application, internet, and transport layer all need headers/footers, as they carry important information required by them for the processing at their level.
Answer:
B is the most appropriate documentation to appear with the printNums procedure
Answer:
For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices. Devices for communication between computers, such as modems and network cards, typically perform both input and output operations.
TRUE HSJSJSJJSHSJSHJSHSJDJDJSHHS
If a code word is defined to be a sequence of different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J, wha
netineya [11]
Answer:
The answer is 6:1 .
Explanation:
We don't need to have prior knowledge of combination or permutation.
Count the way to chose 4 letters.As given in the question chose sequence of different letters
For first place we have 10 letter
For second place we have 9 letter as one is already out
For 3 place we have 8 letter as two letter are already out
For 4 place we have 7 letter as three letter are already out
Total group of 4 letters = 10 * 9 *8*7
Similarly form group of 5 letters we have
Total group of 5 letters = 10 * 9* 8 * 7*6
then Calculating ratio between 4 and 5
We have,
Group 5 : Group 4 ::10 * 9* 8 * 7*6:10 * 9 *8*7
: : 30240 : 5040
divide by 5040 on both side we get
Group 5: Group 4 :: 6 : 1