1.1 Explain concepts related to the Open Systems Interconnection (OSI) reference model.

1. At which of the following layers of the Open Systems Interconnection (OSI) model do the protocols on a typical local area network (LAN) use media access control (MAC) addresses to identify other computers on the network?

1. Physical

2. Data link

3. Network

4. Transport

2. Which of the following organizations developed the Open Systems Interconnection (OSI) model?

1. International Telecommunication Union (ITUT)

2. Comité Consultatif International Télégraphique et Téléphonique (CCITT)

3. American National Standards Institute (ANSI)

4. Institute of Electrical and Electronics Engineers (IEEE)

5. International Organization for Standardization (ISO)

3. Which layer of the Open Systems Interconnection (OSI) model is responsible for the logical addressing of end systems and the routing of datagrams on a network?

1. Physical

2. Data link

3. Network

4. Transport

5. Session

6. Presentation

7. Application

4. On a TCP/IP network, which layers of the Open Systems Interconnection (OSI) model contain protocols that are responsible for encapsulating the data generated by an application, creating the payload for a packet that will be transmitted over a network?(Choose all that apply.)

1. Physical

2. Data link

3. Network

4. Transport

5. Session

6. Presentation

7. Application