Q mark) An Ethernet packet belonging to VLAN 36 (decimal) is transmitted over a VLAN trunk. It is tagged using IEEE 802.1 Q format. What is the format of the tagged frame? In particular what are the values of the Type field and Tag control information field in hex format (assuming the user priority and CFI fields are set to 0). Q2 (4 marks) Consider 100 Mbps Ethernet CSMA/CD operating over a coaxial cable that is 800 metres long. Suppose the signal propagation velocity along the cable is 3c/4, where c is the speed of light, c 3 x10 m/s. Find the following: i. What is the time needed for a signal to propagate from one end of the cable to the other? ii What is the maximum number of bits on the cable at any one time? iii. What is the length of a bit on the cable in metres? How many bits does a round-trip time correspond to? Q3. 2 marks) Consider 10 Mbps Ethernet using CSMA/CD operating on a coaxial cable. Suppose the end-to-end propagation time for the cable is 15 us. i. If the signal propagation velocity is 3c/4, what is the length of the cable? ii. Suppose Ethernet packets of size 200 bytes (including all preamble, header, data and FSC fields) are transmitted. What is the maximum utilisation of the cable? State any formulas you use