IT 120 Spring 2019 Homework 3 1. Do the following base conversions. For parts a and b, you must show your work for ful credit. a. Convert the binary number 11001 to decimal35 b. Convert the decimal number 19 to binary lo o11 c. Convert the binary number 100 1011 0101 to hexadecimal 2. Convert the MAC address 2A-3B-4C-5D-6E-7F from hexadecimal to binary. Make sure it is exactly 48 bits by including all leading zeros. 3. A certain field is 6 binary bits long. What is the largest positive decimal number that can be represented by this field? a. b. What is the smallest non-negative decimal number that can be represented by this field? How many possible values can be represented by this field? c. 4. The Starship Enterprise is visiting a planet where the inhabitants have 9 fingers. Not surprisingly, they use a base 9 numbering system. The planet provides a beam-down coordinate of 168 (in base 9). Translate this to base 10 so the crew can safely go on shore leave 5. Answer the following questions concerning Ethernet and connecting devices: 5.1 All versions of Ethernet use the same frame format. a. true b. false 5.2 When a collision occurs on a network relying on the CSMA/CD access method, what alerts the NICs? A. multiple access C. cyclic redundancy check B. non-standard voltage D. the network crashed 5.3 What is the prefix of an Ethernet frame used for? a. The IP address of the destination c. Alerts the receiver that a frame is coming b. Collision detection d. Error detection Assume all of your existing horizontal cabling and patch cables are CAT6. Will you need to upgrade the cabling to be able to run at 1000 Mbps? (Hint: look at Table 3.1 in your text or the notes.) c. Will you need to upgrade your software (other than, possibly, drivers) to be able to run at 1000 Mbps? d. 14. Sketch an Ethernet network showing a gateway router, a switch, and three hosts