CCNP Infrastructure Practice Question
A network engineer is configuring a pair of Catalyst switches to run VRRP on VLAN 10 (10.10.10.0/24). The virtual IP must be 10.10.10.1 with a priority of 110 on the primary switch and 100 on the standby. The primary switch is currently active. Which configuration on the primary switch correctly sets the VRRP priority and virtual IP?
⚠ Common exam trap
Many exam-takers confuse VRRP command syntax with HSRP, such as using `virtual-ip` or including a subnet mask, which are not valid for VRRP.
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
✓
interface vlan 10 ip address 10.10.10.2 255.255.255.0 vrrp 10 ip 10.10.10.1 vrrp 10 priority 110
VRRP on Cisco IOS uses the `vrrp <group> ip <address>` command to define the virtual IP, and `vrrp <group> priority <value>` to set priority. The highest priority becomes the master. The correct configuration assigns the physical IP, defines the virtual IP 10.10.10.1, and sets priority 110, ensuring this switch becomes the master. Other options contain invalid syntax or set the wrong priority.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
interface vlan 10 ip address 10.10.10.2 255.255.255.0 vrrp 10 ip 10.10.10.1 vrrp 10 priority 110
Why this is correct
This configuration enters VLAN 10 SVI, assigns the physical IP 10.10.10.2, then enables VRRP group 10 with virtual IP 10.10.10.1 and priority 110. In VRRP, the highest priority becomes the master; 110 exceeds the default 100, making this switch the master. The syntax matches Cisco IOS VRRP commands exactly.
- ✗
interface vlan 10 ip address 10.10.10.2 255.255.255.0 vrrp 10 ip 10.10.10.1 255.255.255.0 vrrp 10 priority 110
Why it's wrong here
The `vrrp 10 ip` command does not accept a subnet mask argument. VRRP inherits the subnet mask from the interface IP address. Adding `255.255.255.0` after the virtual IP is invalid syntax and the command will fail, so the virtual IP would not be configured.
- ✗
interface vlan 10 ip address 10.10.10.2 255.255.255.0 vrrp 10 ip 10.10.10.1 vrrp 10 priority 100
Why it's wrong here
This option sets the priority to 100, which is the default. Since the standby switch also uses the default priority, both switches would have equal priority and the one with the higher IP address would become master, which may not be the intended primary switch. The requirement specifies priority 110 for the primary.
- ✗
interface vlan 10 ip address 10.10.10.2 255.255.255.0 vrrp 10 virtual-ip 10.10.10.1 vrrp 10 priority 110
Why it's wrong here
The command `vrrp 10 virtual-ip 10.10.10.1` does not exist in Cisco IOS VRRP configuration. The correct keyword is `ip` followed by the address, not `virtual-ip`. This option is syntactically invalid and would be rejected by the CLI, so it cannot configure the virtual IP.
Visual reference
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.