I need help to answer these 3 problems for networking

Why does the "Offset" field in the IPv4 header measure the offset in 8-byte units? What is the maximum size in bits that the "Offset" field can cover and what is the maximum size of an IPv4 frame can be? Explain your answer Suppose a message that contains 1044 bytes of data contained in an IPv4 message is passed to networks for delivery. The first network has an maximum transfer unit (MTU) of 1024 bytes; the second has an MTU of 576 bytes. Give the sizes and offsets of the sequence of fragments delivered to the network layer at the destination host. Assume all IP headers are 20 bytes. Note that MTU is the maximum size bytes that you can transfer over a network (including the IP header). Thus every IP frame (the message + IP header) can't exceed MTU size. Traceroute is a command which can show you the path a packet of information takes from your computer to one you specify. It will list all the routers it passes through until it reaches its destination, or fails to and is discarded. In addition to this, it will tell you how long each 'hop' (each hop is tested 3 times) from router to router takes. In Windows, select Start > Programs > Accessories > Command Prompt. Enter the word tracert, followed by a space, then the domain name. Example: Tracert www.thesource95.com a) How many routers do you traverse just to get out of your local site? Attach a print screen of your command window. How does it work? Tracert sends multiple IP packets to the destination address with TTL values that start with 1 and incremented each time. Each router in the path forwards the packet to the destination and decrements its TTL. When a router in the middle finds a packet with TTL=0, it responds back with "time exceeded" message. b) What is the name of the protocol that the routers use to send the "time exceeded" message