Opmal Value of Measurements (Two Dimensions) – Three Sides

Open Systems Interconnection model Quiz 1 Answers 1. A NIC works at the Data Link layer. 1) True 2) False Correct answer: True 2. What OSI layer encodes and converts user information into binary data. Provides protocol conversion, encryption, and compression ? 1) 2) 3) 4) 5) 6) Application Presentation Session Transport Network Data Link Correct answer: Presentation 3. Redirectors operate at what layer ? 1) 2) 3) 4) 5) 6) Application Presentation Transport Network Data Link Physical Correct answer: Presentation 4. A Gateway works at the Application, Presentation, Session, and Transport layers. 1) True 2) False Correct answer: True 5. What layer handles data frames between the Network and Physical layers ? 1) 2) 3) 4) 5) 6) Presentation Session Transport Network Data Link Physical Correct answer: Data Link 6. What OSI layer translates logical network address and names to their physical address ? 1) 2) 3) 4) 5) 6) Application Presentation Session Transport Network Data Link Correct answer: Network 7. What OSI layer manages who can transmit data at a certain time and for how long ? 1) 2) 3) 4) 5) 6) Application Presentation Session Transport Network Data Link Correct answer: Session 8. Opens manages, and closes conversations between two computers, also performs name recognition and functions such as security, this describes what layer ? 1) 2) 3) 4) 5) 6) Application Presentation Session Transport Network Data Link Correct answer: Session 9. Which layer do Repeaters, Hubs, Transceivers, and Amplifiers operate ? 1) 2) 3) 4) 5) 6) Application Session Transport Network Data Link Physical Correct answer: Physical 10. The Data Link layer is really two seperate layers what are they ? 1) 2) 3) 4) Frame Access Control and Logical Link Control Logical Link Control and Media Access Control Link Control and Access Control Data Link Control and Network Access Control Correct answer: Logical Link Control and Media Access Control 11. A Bridge, and Switch work at what layer ? 1) 2) 3) 4) Application Presentation Session Network 5) Data Link 6) Physical Correct answer: Data Link 12. TCP, and SPX operate at what layer ? 1) 2) 3) 4) 5) 6) Presentation Session Transport Network Data Link Physical Correct answer: Transport 13. Gateway, Advanced Cable Tester, and Brouter all work at what layer ? 1) 2) 3) 4) 5) 6) Application Presentation Session Transport Network Physical Correct answer: Transport 14. DNS, FTP, SNMP, SMTP, and TELNET are all protocols that use what layer ? 1) 2) 3) 4) 5) 6) Application Session Transport Network Data Link Physical Correct answer: Application 15. A repeater works at the physical and network layers. 1) True 2) False Correct answer: False 16. NetBEUI operates at both the Network and Transport. 1) True 2) False Correct answer: True 17. OSI layer that defines cables, NIC cards ? 1) 2) 3) 4) 5) 6) Presentation Session Application Physical Network Transport Correct answer: Physical 18. Defines cabling and connections. 1) 2) 3) 4) 5) 6) Presentation Session Transport Network Data Link Physical Correct answer: Physical 19. This layer represents the services, that directly support the user applications such as software for file transfers, database access, and e-mail. 1) Application 2) Session 3) Transport 4) Network 5) Data Link 6) Physical Correct answer: Application 20. IP, and IPX operate at what layer ? 1) 2) 3) 4) 5) 6) Application Presentation Session Transport Network Data Link Correct answer: Network