2. NetPro_OSIModel

What is the primary role of the Application layer in the OSI model?

• Error checking and correction
• Formatting data for transmission
• Managing network sessions
• Enabling communication between network clients and services

Which of the following protocols is typically associated with the Application layer?

• TCP
• HTTP
• ICMP
• IP

What is the main purpose of the Presentation layer?

• Setting up communication sessions
• Formatting data for the Application layer
• Translating data between systems and encrypting/decrypting data
• Routing packets between networks

What is the function of the Session layer in the OSI model?

• Assigning IP addresses to hosts
• Managing data streams between client connections
• Formatting data for presentation
• Error checking and correction

What is a session in the context of the Session layer?

• A physical connection between devices
• A sequence number assigned to packets
• Each client connection for data transfer
• An encrypted data envelope

Which of the following is a function of the Transport layer?

• Identifying hosts and networks by using logical addresses
• Providing encryption and compression for data
• End-to-end flow control and segmenting data
• Formatting data for the Application layer

What is a data segment in the context of the Transport layer?

• A unit of data at the Network layer
• A physical connection between devices
• An encrypted message envelope
• A unit of data at the Transport layer

Which layer is responsible for identifying hosts and networks by using logical addresses?

• Data Link
• Presentation
• Network
• Transport

How do routers determine the optimal path for data transmission?

• Using physical addresses
• Using domain names
• Using routing protocols considering factors like link speed and reliability
• Using ARP

The Data Link layer defines the rules and procedures for hosts accessing which layer?

• Network
• Transport
• Physical
• Presentation