Answer:
Laser printer
Explanation:
This is a guess based on experience, but laser printers have rollers, drums, and other various parts that need periodic replacement.
See page 87 of https://www.laserpros.com/img/manuals/hp-manuals/hp-lj-4100-manual.pdf for an example.
- The subnet mask would be a 32-bit integer which is formed by assigning the host bits to all 0's and the networking bits to so many 1's.
- In this method, the subnetting separates the IP address between host and network addresses.
- The subnet mask covers an IP address with its 32-bit number, thus the term "mask".
Given:
Network IP address
Subnet numbers
Calculating the borrow bits:

a)
Calculating the dotted decimal value for the subnet mask:

b)
The additional bits which will be needed to mask the subnet mask that is = 4.
Learn more: brainly.com/question/2254014
Answer: PKI certificates
Explanation: PKI is known as the public key infrastructure which is commonly used for the encryption of the data and also for the data signing. They have the ability to assign the keys pair.
PKI certificates are in the form of strings of alpha-numeric running for a mathematical functions. They use the third party protocols for the execution and they are widely accepted by the authoritative identity.