OSI Model 0.0 / 5 ? AllITFunNone Created by: lucydosramosCreated on: 01-11-18 11:59 What is the OSI Model used for? Defines how data communication occurs 1 of 28 What is Layer 7? Application layer 2 of 28 What is created on layer 7? Messages and packets 3 of 28 What is Layer 6? Presentation layer 4 of 28 What concepts are included on layer 6? Code conversion, data compression and encryption 5 of 28 What is Layer 5? Session layer 6 of 28 What is layer 5 used for? Establishment, termination and synchronization of sessions 7 of 28 What is layer 4? Transport 8 of 28 What does layer 4 ensure? Error-free transmission 9 of 28 What are the 2 main protocols at layer 4? TCP and UDP 10 of 28 What is layer 3? Network layer 11 of 28 What is layer 3 dedicated too? Routing information to different networks 12 of 28 What devices exist on layer 3? Routers and managed swtches 13 of 28 What is layer 2? Data link layer 14 of 28 What does layer 2 do? Establishes, maintains and decides how transfer is accomplished 15 of 28 What devices exist on layer 2? NICs, bridges and switches 16 of 28 At what level is the MAC address? 2 17 of 28 What is a MAC address? Unique identifier 18 of 28 How can switches be compromised? MAC flood attack 19 of 28 What is layer 1? Physical layer 20 of 28 What are the concepts related to layer 1? Topologies, analog versus digital/encoding etc. 21 of 28 What unit of measurement is used on layer 1? Bits 22 of 28 What is another similar model to the OSI model? TCP model 23 of 28 When is the TCP model used? When not as concerned with how information is sent 24 of 28 How many layers does the TCP model have? 4 25 of 28 Why are ports used? To allow or deny communication types 26 of 28 What are ports used in conjunction with? Firewalls 27 of 28 What are the 3 ranges of ports? Well known, Registered and Dynamic 28 of 28
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