Answer:
See explaination
Explanation:
def readFileFirstLast(filename):
# doc string
''' Function accept the filename and opens the fle
and reads all lines and strips new line character and
stores first and last in a string and return that string'''
#eception handle if file not found
try:
#opening the file
f = open(filename)
#reading the first line and striping the ne line
string = f.readline().strip()
#iterating until last line
for line in f:
pass
#concate the last line after strip the new line character to the string
string = string + " " + line.strip()
#return the string
return string
except:
#if file not found
return "File not found"
#taking the file name from user
filename = input("Enter a file name: ")
#printing the doc string in function
print("\ndoc_sting: \n"+ readFileFirstLast.__doc__+"\n")
#printing the returned string by calling the readFileFirstLast()
print("output string :")
print(readFileFirstLast(filename))
Answer: Amazon DynamoDB
Explanation: Amazon DynamoDB(Database) is the database that works in quick speed of milliseconds at any area.It has the characteristics like built-in security section, manageable, restoration function, durable etc.These features helps in handling the request of numerous people on large scale everyday.
It can work in multiple region to and can have multiple master .Thus, the database demand mentioned in the question can be completed by using Amazon DynamoDB as it can fulfill the requires of the company.
Answer:
Nanosecond
Explanation:
Nanosecond is used for measuring DIMM read and write times.
