What characterizes dynamic IP addressing?

• A. Addresses are fixed and unchangeable
• B. Addresses are assigned permanently
• C. Addresses may change over time
• D. Addresses do not support internet connectivity

Answer: (C)

Dynamic IP addressing is characterized by the fact that addresses may change over time. This occurs because dynamic IP addresses are assigned by a Dynamic Host Configuration Protocol (DHCP) server from a pool of available addresses. When a device connects to the network, it receives an IP address for a limited period, known as a lease. The lease duration can vary, and once it expires, the device may either be assigned the same IP address again or receive a different one.

This approach allows for efficient use of IP address space, especially in networks where devices frequently join and leave. It contrasts with static IP addressing, where addresses are fixed and do not change. Dynamic addressing enables easier management of network resources and provides flexibility in network configurations, making it a commonly used method in both home and enterprise network environments. The other options describe characteristics that are not associated with dynamic IP addressing, as they imply permanence and lack of change.