Q1. Consider the subnet with prefix 128.119.40.128/26. Given an instance of one IP address (of form xxx.xxx.xxx.xxx) that can be assigned to this network. Suppose an ISP owns the block of addresses of the form 128.119.40.64/25. Assume it wants to create four subnets from this block, with each block having the same number of IP addresses. What are prefixes (of form a.b.c.d/x) for the four subnets?

Q2. A can of Mountain Dew soda contains 46 g of sugar. Assume that your body completely digests this sugar, 170 kcal of heat energy is available from the sugar. Around how many grams of water will you have to evaporate as sweat to lose this 170 kcal of energy?