Question#2: Suppose an ISP in Cincinnati is granted a block of address starting with 155.155.0.0/19. The ISP needs to distribute these addresses to 4 groups of customers as follows: a. First group has 32 customer and each need approximately 64 addresses. b. Second group has 64 customers and each need 16 addresses. c. Third group has 16 customers and each need 128 addresses. d. Fourth group has 8 customer and each need 256 addresses. • List first and last address for each sub-block. • How many addresses are still left? • Map all IPV4 address to IPV6 address (hint: find the IPV6 prefix and merge above calculated IPV4 addresses with it).

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Storage Devices

Storage devices can store digital information/data and applications (in the form of audio, video, image, etc.) to process the result of any computational work. They are a kind of computer hardware that stores information and instruction to be processed. A storage unit is a part of a computer system. Every computer has a storage device. The storage devices work as a memory. They are also known as a storage medium, digital storage, or storage media, which temporarily or permanently store information. They are used either internally or externally in the computer system, server, or any computation device to hold the information. Examples include a pen drive, CD, DVD, floppy disk, memory card and so forth.