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

2. After 4.1

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

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

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

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

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

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

9. A client requests a Web page. What TCP port on the client sends the request? A.23 B.53 C.80 D.110 E.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? A.SYN B.SYN/ACK C.HTTP GET D.ACK E.ARP 1 of 5

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

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

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

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

16. Binary Lesson 4 Hexadecimal 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 0 0 0 1000 8 8 1 1 1 1001 9 9 1 1 1 1001 9 9 10 2 2 1010 10 A 10 2 2 1010 10 A 11 3 3 1011 11 B 11 3 3 1011 11 B 100 4 4 1100 12 C 100 4 4 1100 12 C 101 5 5 1101 13 D 101 5 5 1101 13 D 110 6 6 1110 14 E 110 6 6 1110 14 E 111 7 7 1111 15 F 111 7 7 1111 15 F

18. Four Bits Make a Nybble 1 0 0 1 A nybble can be represented by one hexadecimal digit Values from 0 to 15, or 0 to F 8s 4s2s1s

19. Eight Bits Make a Byte 1 0 0 1 1 0 0 1 So this number is 128 + 16 + 8 + 1 = 153 8s4s2s1s8s4s2s8s4s1s2s8s4s 16s32s 128s 64s16s32s64s16s32s One nybble: 0 through F One nybble: 0 through F

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

21. Binary iClicker Questions

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

23. What is $A0 in decimal? A.160 B.100 C.10 D.255 E.90 2 of 11

24. What is 64 in hexadecimal? A.$20 B.$30 C.$34 D.$40 E.$44 3 of 11

25. What is 252 in hexadecimal? A.$F0 B.$F8 C.$FA D.$FC E.$FE 4 of 11

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

27. What is the highlighted IP Address? A.127.0.0.1 B.192.168.0.139 C.192.168.0.101 D.192.168.0.91 E.Something else 6 of 11

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

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

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

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

32. Convert this subnet mask to binary: 255.255.255.0 A.11111111 11111111 11111111 11111111 B.11111111 00000000 00000000 00000000 C.01111111 01111111 01111111 00000000 D.11111111 11111111 11111111 00000001 E.11111111 11111111 11111111 00000000 11 of 11

33. After 4.4

34. Which TCP header value is dynamically adjusted to react to network congestion? A.Source Port B.Destination Port C.Window Size D.Acknowledgement Number E.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? A.No Delay B.50 ms C.100 ms D.150 ms E.200 ms or more 2 of 3