In a given routing table, which gateway will be used for a packet with the destination address 10.1.5.126?

To determine which gateway will be used for a packet with the destination address of 10.1.5.126, it's important to look at the routing table and understand how routing decisions are made based on network prefixes and the closest match for the destination address.

The correct gateway option is 10.1.1.2. This is likely specified in the routing table as the next-hop address that corresponds to a route that includes 10.1.5.126 within its defined prefix. In routing, addresses are matched based on the most specific route available, which is typically determined by the longest prefix match.

For example, if the routing table has an entry that covers the subnet that includes 10.1.5.126, such as a route for 10.1.5.0/24 pointing to the gateway 10.1.1.2, that would indicate that packets destined for any address in that subnet, including 10.1.5.126, should be sent to 10.1.1.2.

Addresses like 10.1.1.1 and 25.1.1.1 would not be used in this scenario unless they were part of a defined route that includes the