Question: undefined 16. A is a connecting device that operates in the physical and data link layers of the Internet model. a. hub b. switch C.

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16. A is a connecting device that operates in the physical and data link layers of the Internet model. a. hub b. switch C. router d. none of the above 17. The following . IP address 172.16.20.54 converts to in binary. a) 10101110.00010000.00010100.00110110 b) 10101100.00010000.00010100.00110100 c) 10101100.00010000.00010100.00110110 d) 10101100.00010000.00010100.00111110 a. 18. Which protocol assigns IP addresses to a client connected in the internet DHCP b. IP c. RPC d. none of the above 19. What does 192 translate to in binary a. 00111110 b. 00000011 c. 11110000 d. 11000000 20. Type of transmission in which character's bit are sent one after other is classified as a. one bit at a time transmission b. fast transmission c. serial transmission d. parallel transmission duplex 21. A communication between a computer and a keyboard involves transmission. a. simplex b. half-duplex C. full-duplex d. semi-duplex 22. In which layer of the OSI Model do Routers works a. physical b. data link c. network layer d. session layer 23. PDU's at the data link layer are known as a. frames b. packets c. datagrams d. segments

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