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iClicker Questions

iClicker Questions. CNIT 201E. Modified 8-31-10. After 4.1. What OSI Model Layer labels data with a port number ?. Application, Presentation, or Session Transport Network Data Link Physical. 1 of 7. What OSI Model Layer labels data with a MAC Address ?.

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iClicker Questions

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  1. iClicker Questions CNIT 201E Modified 8-31-10

  2. After 4.1

  3. What OSI Model Layer labels data with a port number? • Application, Presentation, or Session • Transport • Network • Data Link • Physical 1 of 7

  4. What OSI Model Layer labels data with a MAC Address? • Application, Presentation, or Session • Transport • Network • Data Link • Physical 2 of 7

  5. What OSI Model Layer labels data performs segmentation? • Application, Presentation, or Session • Transport • Network • Data Link • Physical 3 of 7

  6. Which protocol will deliver a large data file the most rapidly? FTP HTTP TCP UDP HTTPS 4 of 7

  7. Which item is not found in the TCP header? • ACK number • Source IP Address • Source Port Number • Window Size • Checksum 5 of 7

  8. A client requests a Web page. What TCP port on the Web server receives the request? • 23 • 53 • 80 • 110 • A port larger than 1023 6 of 7

  9. A client requests a Web page. What TCP port on the client sends the request? • 23 • 53 • 80 • 110 • A port larger than 1023 7 of 7

  10. After 4.2

  11. When a user opens a Web page, what is the first TCP packet sent to the server? • SYN • SYN/ACK • HTTP GET • ACK • ARP 1 of 5

  12. Which item is not a flag field in the TCP Header? GET ACK PSH URG RST 2 of 5

  13. Which type of packet is normally sent to indicate that the session should be ended? ACK FIN PSH URG RST 3 of 5

  14. What TCP Header Field specifies how many bytes can be sent before waiting for acknowledgement? Window Checksum Flags Sequence Number Acknowledgement Number 4 of 5

  15. What TCP Header Field has the value 80 in an HTTP GET segment? Source Port Checksum Flags Sequence Number Destination Port 5 of 5

  16. Binary Lesson 4Hexadecimal and Binary Practice

  17. Counting to 15 Base Base Base 16 Base Base Base 16 Two Ten (Hex) Two Ten (Hex) 0 0 0 1000 8 8 1 1 1 1001 9 9 10 2 2 1010 10 A 11 3 3 1011 11 B 100 4 4 1100 12 C 101 5 5 1101 13 D 110 6 6 1110 14 E 111 7 7 1111 15 F

  18. Four Bits Make a Nybble 4s 2s 1s 8s 1001 A nybble can be represented by one hexadecimal digit Values from 0 to 15, or 0 to F

  19. Eight Bits Make a Byte 128s 64s 64s 32s 32s 32s 16s 16s 16s 8s 8s 8s 8s 4s 4s 4s 4s 2s 2s 2s 1s 1s One nybble: 0 through F One nybble: 0 through F 10011001 So this number is 128 + 16 + 8 + 1 = 153

  20. Two hexadecimal digits make a byte One nybble: 0 through F # of 16s One nybble: 0 through F # of 1s 10011001 So this number is $99 = 9*16 + 9 = 144+9 = 153

  21. Binary iClicker Questions

  22. What is 16 in hexadecimal? $0A $A6 $0F $10 $16 1 of 11

  23. What is $A0 in decimal? 160 100 10 255 90 2 of 11

  24. What is 64 in hexadecimal? $20 $30 $34 $40 $44 3 of 11

  25. What is 252 in hexadecimal? $F0 $F8 $FA $FC $FE 4 of 11

  26. Convert this binary number to hexadecimal:01101011 $23 $63 $67 $69 $6B 5 of 11

  27. What is the highlighted IP Address? 127.0.0.1 192.168.0.139 192.168.0.101 192.168.0.91 Something else 6 of 11

  28. Convert this IP address to hexadecimal:127.0.0.1 80 00 00 01 81 00 00 01 79 00 00 01 7F 00 00 01 7D 00 00 01 7 of 11

  29. Convert this IP address to binary:127.0.0.1 11111111 00000000 00000000 00000001 01111111 00000000 00000000 00000001 00111111 00000000 00000000 00000001 00011111 00000000 00000000 00000001 00001111 00000000 00000000 00000001 8 of 11

  30. Convert this IP address to binary:147.144.0.1 11111111 00000000 00000000 00000001 01111111 00000000 00000000 00000001 10010111 10010000 00000000 00000001 10010011 10010000 00000000 00000001 10010111 10110000 00000000 00000001 9 of 11

  31. Convert this IP address to binary:147.255.255.254 10010111 00000000 00000000 00000001 10010011 11111111 00000000 00000001 10010111 11111111 11111111 11111111 10010011 11111111 11111111 11111110 10010011 11111111 11111111 11111101 10 of 11

  32. Convert this subnet mask to binary:255.255.255.0 11111111 11111111 11111111 11111111 11111111 00000000 00000000 00000000 01111111 01111111 01111111 00000000 11111111 11111111 11111111 00000001 11111111 11111111 11111111 00000000 11 of 11

  33. After 4.4

  34. Which TCP header value is dynamically adjusted to react to network congestion? • Source Port • Destination Port • Window Size • Acknowledgement Number • Sequence Number 1 of 3

  35. A computer is ready to send a file to another computer over a network link with a latency of 100 ms (for a round-trip). How long will it have to wait before it can start sending data via TFTP? No Delay 50 ms 100 ms 150 ms 200 ms or more 2 of 3

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