ITM 301 Lecture Notes - Lecture 11: Hostname, Netstat, Ipsec

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Farid Shirazi

Document Summary

80 multiple choice questions (4 or 5 options) What is the speed of oc1: 51. 8, 155, 622, 600. Tcp/ip and osi model: osi layers (names and numbering) 6: the function of each osi layer. Protocols for httpp, https, dns (application: map osi layers to tcp/ip. Data link and physical from osi connects to network interface of tcp/ip: tcp -> connection oriented. Or responses with an error (if cannot deliver) ex: 404 error: udp is a connectionless oriented protocol. Igmp- does not guarantee message delivery, does not check for errors. Subnet is used to separate net address from a given ip. Important tcp/ip servers: dhcp -> dora ports 67,68. A dhcp server assigns a ip to a client for 8 days: dns port number: 53. A-> hostname, ptr->reverse lookup, cname-> alias, mx, soa, srv. Update: socket = ip + port, important port #s. Basic rate -> 2 channels: 64 k/s, 1 data channel 16 k/s.