What is the primary purpose of the Virtual Router Redundancy Protocol (VRRP) in a high-availability cluster?

To provide a virtual IP that can be shared between routers so that one router automatically takes over if the other fails

To encrypt traffic between routers in a cluster

To load balance traffic across multiple routers simultaneously

To synchronize the routing tables of multiple routers in real time

An administrator uses ldirectord to manage IPVS for a cluster of web servers. The real servers are configured with the VIP on their loopback interfaces, and the director uses direct routing (DR). The team reports that some clients receive connection timeouts. The administrator checks ldirectord logs and sees that real servers are being marked down and up frequently. What is the most likely cause of the flapping?

The real servers have different subnet masks than the director

The ldirectord checkinterval is set too high, causing delayed health check responses

The health check is sending requests to the VIP, which is also configured on the real servers' loopback interfaces, causing the check to hit the local server instead of the real server's service

The real servers are not configured with IP forwarding enabled

LPI LPIC-3 High Availability and Storage Clusters

Domain 1Objective 2

361.2 Load Balanced Clusters (weight: 8) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 6)

Part of the Topic 361: High Availability Cluster Management domain, which makes up ~29% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~10–17 in this domain), expect 3–6 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

7concepts

Questions 26–28

26foundation · easy
What is the primary purpose of the Virtual Router Redundancy Protocol (VRRP) in a high-availability cluster?
Select an answer first
27expert · hard
An administrator uses ldirectord to manage IPVS for a cluster of web servers. The real servers are configured with the VIP on their loopback interfaces, and the director uses direct routing (DR). The team reports that some clients receive connection timeouts. The administrator checks ldirectord logs and sees that real servers are being marked down and up frequently. What is the most likely cause of the flapping?
Select an answer first
28application · medium
A team runs a stateful application behind HAProxy. They need to ensure that a client's subsequent requests are sent to the same backend server for the duration of a session. Which HAProxy feature should they enable in the backend configuration?
Select an answer first

Finished these 3 questions?

Review the revealed explanations, or continue through the curriculum.

No more pagesBack to LPIC-3-HIGH-AVAILABILITY

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Linux Professional Institute. “LPIC-3-HIGH-AVAILABILITY” is a trademark of its owner, used for identification only.

361.2 Load Balanced Clusters (weight: 8) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 6)

Questions 26–28

What is the primary purpose of the Virtual Router Redundancy Protocol (VRRP) in a high-availability cluster?

A team runs a stateful application behind HAProxy. They need to ensure that a client's subsequent requests are sent to the same backend server for the duration of a session. Which HAProxy feature should they enable in the backend configuration?

Keep studying — Topic 361: High Availability Cluster Management