Cisco Certified Support Technician (CCST) NetworkingIP ServicesEasy
A network administrator is configuring a DHCP server to assign IP addresses to devices in a new subnet. Which of the following is the primary purpose of the DHCP lease time configuration?
- ATo define how long a client can use an assigned IP address before needing to renew it.
- BTo set the time interval for the DHCP server to broadcast its presence on the network.
- CTo specify the maximum number of clients that can receive an IP address from the server.
- DTo determine the duration for which a client's MAC address is cached by the DHCP server.
Show answer & explanationAnswer & explanation
Correct answer: A. To define how long a client can use an assigned IP address before needing to renew it.
The DHCP lease time specifies the duration for which an IP address is allocated to a client. After this period, the client must renew its lease or acquire a new address.
Why the other options are wrong
- B. While DHCP involves broadcasts, the lease time does not control the server's broadcast interval.
- C. This is related to the scope size, not the lease time.
- D. The DHCP server does not typically cache MAC addresses for a specific duration related to the lease time; it uses them for address assignment.
DHCP Lease Time
The duration for which a DHCP client can use an assigned IP address before it needs to renew or request a new one.
- Set by the DHCP server.
- Can be configured to vary based on network needs.
- Impacts IP address availability and network traffic.
Memory trick: Lease time is like renting an apartment; you have it for a set duration.