A company runs a critical web service behind two keepalived directors. The primary director has a priority of 150, and the backup has a priority of 100. The team notices that after a failover, the primary does not reclaim the VIP when it recovers, even though it is healthy. The keepalived configuration on the primary includes 'nopreempt'. What is the most likely reason the primary does not reclaim the VIP?

The backup has a higher advert interval, causing it to remain master

The nopreempt directive prevents the primary from taking over the VIP after the backup has become master

The virtual router ID is different on the primary and backup

The primary's priority is not high enough to trigger preemption

In HAProxy, what is the purpose of a 'frontend' section in the configuration?

To configure health checks for the backend servers

To define the IP addresses and ports on which HAProxy listens for incoming client connections

To set global parameters like maximum connections and logging

To define the pool of backend servers that will handle requests

Which LVS forwarding method requires the real servers to have a route back to the director for all return traffic?

Network address translation (NAT)

A company runs a mix of long-lived WebSocket connections and short HTTP requests behind HAProxy. They want to ensure that WebSocket connections are not terminated by idle timeouts, while HTTP requests should still have a reasonable timeout. Which HAProxy configuration approach should be used?

Use a separate frontend for WebSocket traffic with a longer timeout tunnel, and a different frontend for HTTP traffic with standard timeouts

Use option http-server-close to close connections after each request

Set a single global timeout server value that is long enough for WebSocket connections

Enable balance leastconn to distribute WebSocket connections evenly

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 5)

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 21–25

21expert · hard
A company runs a critical web service behind two keepalived directors. The primary director has a priority of 150, and the backup has a priority of 100. The team notices that after a failover, the primary does not reclaim the VIP when it recovers, even though it is healthy. The keepalived configuration on the primary includes 'nopreempt'. What is the most likely reason the primary does not reclaim the VIP?
Select an answer first
22foundation · easy
In HAProxy, what is the purpose of a 'frontend' section in the configuration?
Select an answer first
23foundation · easy
Which LVS forwarding method requires the real servers to have a route back to the director for all return traffic?
Select an answer first
24expert · hard
A company runs a mix of long-lived WebSocket connections and short HTTP requests behind HAProxy. They want to ensure that WebSocket connections are not terminated by idle timeouts, while HTTP requests should still have a reasonable timeout. Which HAProxy configuration approach should be used?
Select an answer first
25foundation · easy
Which HAProxy configuration section combines both listening and backend definitions in a single block, allowing it to both accept connections and route them to servers?
Select an answer first

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361.2 Load Balanced Clusters (weight: 8) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 5)

Questions 21–25

In HAProxy, what is the purpose of a 'frontend' section in the configuration?

Which LVS forwarding method requires the real servers to have a route back to the director for all return traffic?

A company runs a mix of long-lived WebSocket connections and short HTTP requests behind HAProxy. They want to ensure that WebSocket connections are not terminated by idle timeouts, while HTTP requests should still have a reasonable timeout. Which HAProxy configuration approach should be used?

Which HAProxy configuration section combines both listening and backend definitions in a single block, allowing it to both accept connections and route them to servers?

Keep studying — Topic 361: High Availability Cluster Management