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# HW6A - 115.3.28.10 01110011 00000011 00011100 00001010 b...

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IT 420 HW 6 Wonchul Song 1. Assume a bridge contains the following table: Destination MAC Address Output Port A 1 B 1 C 2 D 2 a. A frame with a destination address of D arrives on port 1. Should the bridge forward the frame out of port 1, forward the frame out of port2, or drop it? Forward the frame out of port 2 b. A frame with a destination address of B arrives on port 1. Should the bridge forward the frame out of port 1, forward the frame out of port 2, or drop it? Drop 2. Describe switched Ethernet. Ethernet network that is controlled by a switch instead of a shared hub. The switch cross connects all clients, servers and network devices, giving each sending-receiving pair the full rated transmission speed. Each host has the full use of the connection via switch. (send & receive) 3. Change the IP addresses below from dotted decimal notation to binary notation. Make sure each address has exactly 32 bits. a.

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Unformatted text preview: 115.3.28.10 01110011 00000011 00011100 00001010 b. 134.105.23.7 10000110 01101001 00010111 00000111 c. 185.34.67.225 10111001 00100010 01000011 11100001 4. Change the IP addresses below from binary notation to dotted decimal notation. a. 01111110 11110000 01100111 01111111 126.240.103.127 b. 10000000 10110011 00001100 01001100 128.179.12.76 c. 00110101 11100101 10110000 10000011 53.229.176.131 5. What are the netid and the hostid in the following class-ful IP addresses? a. 220.171.44.14 netid = 220.171.44 hostid = 14 b. 81.211.130.8 netid = 81 hostid = 211.130.8 c. 131.56.67.3 netid = 131.56 hostid = 67.3 6. Identify whether each IP address is valid or invalid. If invalid, give a reason. a. 131.107.2.226 Valid b. 255.268.3.100 Invalid. Second dotted decimal field is way too big. c. 1.3.6.12 Valid d. 254.224.206 Invalid. It is lacking one dotted decimal fields....
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HW6A - 115.3.28.10 01110011 00000011 00011100 00001010 b...

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