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iClicker Questions

iClicker Questions. CNIT 201E. 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 ?. Application, Presentation, or Session Transport

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iClicker Questions

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  1. iClicker Questions CNIT 201E

  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 3

  12. Which item is not a flag field in the TCP Header? GET ACK PSH URG RST 2 of 3

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

  14. After 4.4

  15. 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

  16. 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

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

  18. Lab Notes

  19. Hands-on Labs • Packet Tracer Activities • You can do them anywhere • Lab 4.5.1: Observing TCP and UDP using Netstat • You can do it at home with minor modifications—telnet to hills.ccsf.edu

  20. Hands-on Labs • Lab 4.5.2: TCP/IP Transport Layer Protocols, TCP and UDP • Do in the classroom • Lab 4.5.3: Application and Transport Layer Protocols Examination • You could do it from home, but it will be easier in the classroom • Do Packet Tracer Labs first

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