What does a DHCP lease determine in networking? Learn how a DHCP lease specifies how long an IP address is assigned to a device, ensuring efficient IP address management—essential for Cisco Certified Support Technician (CCST) Networking 100-150 exam success.
Table of Contents
Question
What does a DHCP lease determine?
A. The maximum number of MAC addresses allowed
B. The VLAN assigned to a device
C. The DNS settings for a device
D. The default gateway configuration
E. How long an IP address is assigned to a device
Answer
E. How long an IP address is assigned to a device
Explanation
A DHCP lease defines how long a device can use an assigned IP address before renewal.
A DHCP lease determines how long an IP address is assigned to a device.
The DHCP (Dynamic Host Configuration Protocol) lease time is the duration for which a DHCP server allows a device to use a specific IP address before it must renew the lease or request a new address.
When a device joins a network, it receives an IP address from the DHCP server along with a lease time. The device can use that IP address for the specified period. Before the lease expires, the device must renew the lease to continue using the same IP address; otherwise, the address may be reassigned to another device.
This mechanism prevents unused IP addresses from being tied up indefinitely and helps manage IP address allocation efficiently, especially in networks with a limited address pool.
Lease renewal typically occurs when half the lease time has passed, and if renewal fails, the device must request a new lease after expiration.
A DHCP lease defines the time period a device can use an assigned IP address before it must renew or release it back to the DHCP server.
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