W4 - Ethernet and Network Layer (SY25-26/C305-304i)

Multiple Choice

What two layers of the OSI reference model governs the ethernet?

• Application and Presentation

• Session and Transport

• Data Link and Physical

• Network and Data Link

Multiple Choice

Which among the following is not a function of data encapsulation?

• Frame delimiting

• Addressing

• Error detection

• None of the mentioned

Multiple Choice

What happens if a switch receives a frame with an unknown unicast destination MAC address?

• It sends an ARP request for the address.

• It drops the frame immediately.

• It forwards the frame out all ports except the incoming port.

• It stores the frame in its memory buffer until the address is learned.

Multiple Choice

What is the primary function of the Address Resolution Protocol (ARP)?

• To resolve MAC addresses to IP addresses.

• To resolve IPv4 addresses to MAC addresses.

• To manage the IP packet fragmentation process.

• To maintain a routing table for remote networks.

Multiple Choice

What are the four basic operations performed by the network layer?

• Addressing, encapsulation, routing, and de-encapsulation.

• Data encapsulation, media access control, error detection, and frame delimiting.

• Connection establishment, data transfer, acknowledgment, and connection termination.

• Physical signaling, frame delimiting, error detection, and addressing.

Multiple Choice

What is a key characteristic of a static route?

• It is automatically discovered by the router.

• It is maintained by a dynamic routing protocol.

• It must be manually configured by an administrator.

• It is only used for local traffic.

Lesson Assessment

Multiple Choice

A Layer 2 Ethernet switch makes its forwarding decisions based on which of the following?

• Layer 2 Ethernet MAC addresses.

• IP addresses.

• TCP port numbers.

• Logical Link Control (LLC) information.

Multiple Choice

What information is included in an ARP request message?

• The source and destination IP addresses.

• The target IPv4 address and the target MAC address.

• The source and destination MAC addresses.

• The default gateway's IP address.

Multiple Choice

What is an Ethernet MAC address?

• A 32-bit logical address used for routing.

• A 48-bit binary value expressed as 12 hexadecimal digits.

• A 64-bit address used for identifying a specific network.

• A 24-bit value assigned by the internet service provider.

Multiple Choice

What is the purpose of a default gateway?

• It acts as a switch to forward traffic on the local network.

• It is a device that a host sends all local traffic to.

• It allows a host to communicate with devices on a remote network.

• It stores the MAC address table for the entire network.