ccna questions online

ccna questions online.A. AUI B. DB-15 C. RJ-45D. SC3.7 Answers to Self-Test Questions1. ao All Ethernet uses CSMA/CD: carrier listen multiple access/conflict detection. b and d are incorrect because they are both incorrect terms. c describes getting an Ethernet to recover from a conflict.2. co EthernetII uses the type field, while 802.3 uses the length field; for 802.3, A, B, and D are correct, so none is the correct answer.3. the CoMAC address is 6 bytes long and 12 bits long when expressed in hexadecimal. a is incorrect because G is not a character used in hexadecimal. b is incorrect because it is 15 bits long. d is incorrect because it is 16 bits long.Addressing 4. Bo11000001 corresponds to a hexadecimal number and a decimal number of Cl and 193, respectively. a and D are incorrect because B1 corresponds to a binary number of 10110001. c and D are incorrect because 195 corresponds to a binary number of 11000011. 5. Do11100111 corresponds to a decimal number of 231. a corresponds to a binary number of 11101011; B corresponds to the binary number 11110100; and C corresponds to the binary number 11000000. 6. The correct association is as follows.Decimal value Hexadecimal value Binary value7. coUTP uses copper conductors and is subject to EMI and RFI. a and b are incorrect because UTP uses 4 pairs of copper conductors. d is incorrect because fiber is required in this case.8. B. Use