Your question:

You are using tracert to determine the path a packet takes across your internetwork. Which OSI Model layer are you examining?

OSI Model Layer for Tracert Answer and Explanation

TTL is a field within the IP header, which belongs to Layer 3. It determines how many hops (routers) a packet can traverse before being discarded.

Eliciting ICMP Time Exceeded Messages:

Tracert records the IP address of each router that sends back an ICMP Time Exceeded message.

This allows it to build a list of the routers that a packet traverses on its journey to the destination.

It utilizes IP headers (Layer 3) to manipulate TTL values.

It relies on ICMP (Layer 3) messages to gather information about the path.