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:
Importance of backup in system administration:
Backups are crucial in system administrations for preserving continuity and protecting against specific types of hardware failures, service interruptions, and human mistakes. To aid a company in recovering from an unexpected catastrophe, backup copies make it possible to restore data to a previous point in time. To safeguard against primary data loss or corruption, it is essential to save a copies of data on a different media. When a system administrator create a backup, he makes a copy of the data that you can restore if your main data is lost. These errors may be the consequence of faulty hardware or software, corrupted data, or a human error like a targeted attack or an unintentional deletion. System backup and recovery is therefore a crucial skill for system administrators as well as the companies they work for.
Three methods for performing backup:
- Disk image: A efficient method to back up not only the files and directories but also everything else on the system is by creating a disk image. If a user have a disk image, the user can restore everything, including the operating system, applications, data, and more, so the user won't have to worry about any difficulties. Placing the disk image-containing DVD into the DVD-ROM to restore the backup. Additionally, just attach an external HDD to the computer if the user have a disk image that they made.
- External hard drive: The most common backup method is to use an external hard drive or even a USB flash drive. An HDD can be easily, quickly, and affordably backed up. It is effective since consumers may carry their portable backup with them wherever they go.
- Cloud backup: Cloud backup or Online backup has been around for a while, but not many people really utilize it. But the greatest backup technique by far is cloud backup. The user does not have to worry about hardware problems because their files are saved in the cloud and can be accessed from anywhere because the backups are automatically produced and everything is synchronized. It is one of the greatest methods to backup, especially when you consider that the contents are encrypted and stored securely.
1,048,576 is the fastest because it's the highest number and that's the speed of 5g on a I phone
Answer:
PYTHON CODE:
str = input("Enter the first 9 digits of an ISBN-10 as a string : ") # user input
i = 1
checksum = 0 # for total sum
while i < 10:
c = int(str[i - 1]) # getting every digit of the ISBN
c = c * i
checksum += c
i=i+1
checksum=checksum % 11 # getting the last digit of ISBN
ch=checksum
if checksum==10: # if the last digit is 10 then change it to X
ch="X"
print("The Complete 10-Digit ISBN is : ",end="")
print(str,end="") # displaying the 9 digit of ISBN
print(ch) # appending the last digit of ISBN
Explanation:
If you mean you have no knowledge of the subject you're supposed to be researching, than that's the disadvantage, because you will have many,many different pages for what the search engines can relate what you're searching on to what it hints will help.
Disadvantages of using a computer when you don't know how to use a computer.
You don't know how to use a computer.
