Answer:
A. data-link layer
Explanation:
Data-link layer is the first layer and allows a contiguous sequence of bits to be transmitted through the network.
On top of it is the Network Layer and it handles the task of routing network messages from one computer to another.
Then comes the Transport Layer which is the basic layer at which one network computer communicates with another network computer.
Answer:
def length( mystring):
count = 0
for i in mystring:
count += 1
return count
def reversed( mystring):
strlist = []
for i in range(length(mystring)):
strlist.append(mystring[(length(mystring) - 1) - i])
txt = "".join(strlist)
return txt
string = 'Yolanda'
print(reversed(string))
Explanation:
The python module defines two functions 'reversed' and 'length'. The length function counts the number of characters in a string variable while the reversed function reverses the string variable value.
Answer:
computers
Explanation:
it is because other remaining are not able to access network
Answer:
<u>First generation are</u>
a)they are unreliable
b)they are very costly and
c)huge in size
<u>Second generation are</u>
a)they use a transistor
b)smaller in size compared to first generation
c)they are faster than the first generation
<u>Third generation are </u>
a)its more reliable than the first generation and the second generation
b)faster than first generation and the second generation
c)consume less electricity
<u>Fourth generation are</u>
a) they are very cheap
b)they are very small in size
c)they are portable and reliable
Explanation:
explanation is in the answer
