In a complex network, Router transfers data packets by observing some form of parameters or metrics provided in the routing table. Which of the following metrics is NOT included in the routing table?

Frequency is not a routing metric used in any standard routing protocol or routing table. Routing protocols rely on measurable path characteristics such as bandwidth, delay, load, reliability, hop count, and MTU - frequency of a signal is a physical-layer concept unrelated to path selection logic.

Delay is a valid routing metric used by protocols like EIGRP to measure the time it takes for a packet to traverse a path.

Load is a valid routing metric representing the traffic utilization on a link, also used by EIGRP in composite metric calculations.

Bandwidth is a standard routing metric representing the data capacity of a link, used by OSPF, EIGRP, and others to prefer higher-capacity paths.