LPIC-2 Network Client Management Practice Question
Exhibit
Refer to the exhibit.
lease {
interface "eth0";
fixed-address 192.168.1.100;
option subnet-mask 255.255.255.0;
option routers 192.168.1.1;
option domain-name-servers 192.168.1.10,8.8.8.8;
renew 2 2025/03/25 10:00:00;
rebind 2 2025/03/25 12:00:00;
expire 2 2025/03/25 14:00:00;
}The DHCP client lease file shows a lease for 192.168.1.100. If the client fails to contact the original DHCP server by the rebind time (12:00), what will occur?
⚠ Common exam trap
A common mix-up: candidates confuse the rebind time (T2) with the expire time (T3), leading candidates to think the client releases or stops using the address immediately, when in fact it broadcasts to any server for a lease extension.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The client will attempt to contact any DHCP server to extend the lease.
When a DHCP client reaches the rebind time (T2, default 87.5% of lease duration) without contacting the original server, it enters the REBINDING state. In this state, the client broadcasts a DHCPREQUEST to any available DHCP server to extend the lease. Option D correctly describes this behavior, as defined in RFC 2131.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The client will continue to use the address until the expire time without any further attempts.
Why it's wrong here
The client will still try to contact DHCP servers during the rebind state.
- ✗
The client will immediately release the address.
Why it's wrong here
The client retains the address until the expire time.
- ✗
The client will rebind with a new IP address from any server.
Why it's wrong here
rebind attempts to extend the same address, not obtain a new one.
- ✓
The client will attempt to contact any DHCP server to extend the lease.
Why this is correct
After rebind, the client broadcasts to any DHCP server for a lease extension.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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