VMware Avi Load Balancer 30.x Administrator (6V0-22.25) Free Practice Test

Question 1

An administrator is configuring an L4 Virtual Service with the Preserve Client IP option enabled.
What is the effect of this setting on the backend servers?
# Virtual Service > Advanced Settings
Application Profile: System-L4
[x] Preserve Client IP Address

A. The backend servers will see the IP address of the Avi Controller as the source IP for all connections.

B. This option has no effect on the backend servers; it is only for logging purposes.

C. The Service Engine will insert the original client IP into an HTTP header.

D. The backend servers will see the original client's IP address as the source of the TCP connection.

Correct Answer: D

Question 2

An Avi Administrator needs to configure a Virtual Service for a critical application with a requirement for rapid, automated scaling. The administrator wants to ensure that new Service Engines are automatically provisioned and added to the Virtual Service when traffic exceeds a certain threshold. Which Service Engine Group setting is essential for this?
# Service Engine Group Configuration
name: seg-production
max_vs_per_se: 10
min_scaleout_per_vs: 1
max_scaleout_per_vs: 4
# ... other settings
ha_mode: N+M
# ... other settings

A. ha_mode

B. max_vs_per_se

C. max_scaleout_per_vs

D. min_scaleout_per_vs

Correct Answer: C

Question 3

An administrator is tasked with temporarily disabling all WAF processing for a specific Virtual Service to perform a baseline performance test. They need to ensure that the WAF engine does not inspect any traffic for this VS, but they want to keep the WAF configuration in place to re- enable it easily after the test.
The current WAF configuration for the Virtual Service is shown below.
# Virtual Service > WAF Policy
WAF Policy: custom-waf-policy-prod
Mode: Enforcement
What is the most direct and appropriate method to achieve this?

A. In the WAF Policy 'custom-waf-policy-prod', uncheck all signature rules.

B. In the Virtual Service editor, set the WAF Policy to 'None'.

C. Delete the 'custom-waf-policy-prod' WAF Policy.

D. SSH into the Service Engine and stop the WAF process.

Correct Answer: B

Question 4

An organization has enabled Avi's real-time analytics for all their production Virtual Services. To reduce storage consumption and improve query performance, they want to automatically discard logs for routine, successful (HTTP 200) health monitor checks, while keeping all logs for failed checks and actual user traffic. Which combination of settings is required to achieve this? (Select all that apply.)

A. For the Health Monitor, ensure 'Is Federated' is unchecked.

B. In the Analytics Profile for the Virtual Service, configure 'Non-Significant Log Throttling'.

C. For the Health Monitor, disable the 'Log Successful Checks' option.

D. For the Health Monitor, set the 'Health Monitor Type' to 'UDP'.

E. In the Analytics Profile for the Virtual Service, enable 'Log all requests'.

F. In the Analytics Profile for the Virtual Service, disable logging for 'Non-Significant' traffic.

Correct Answer: B,C

Question 5

A Network Architect is designing a security policy for a new data center. The policy mandates that all TLS traffic must use Perfect Forward Secrecy (PFS). Which types of certificates and associated cipher suites support PFS? (Select all that apply.)

A. Certificates with a key length of 1024 bits or less.

B. Any certificate, as long as the client's browser is modern.

C. Self-signed RSA certificates only.

D. RSA certificates, when used with DHE or ECDHE cipher suites.

E. EC certificates, when used with ECDHE cipher suites.

F. Any certificate, as PFS is a server-side setting independent of the certificate type.

Correct Answer: D,E

Question 6

What are the key characteristics of the Active/Active HA mode for a Virtual Service in Avi?

A. It is only suitable for stateless applications.

B. It provides both increased performance/capacity and high availability.

C. It requires the Service Engine Group to be configured in N+M mode.

D. All Service Engines hosting the VS are actively processing client traffic simultaneously.

E. It ensures that if an active SE fails, the VS is migrated to an idle standby SE.

F. It is achieved by setting the "Max Number of Service Engines" for the Virtual Service to a value greater than one.

Correct Answer: B,D,F

Question 7

An Avi Administrator is managing a multi-tenant environment where different applications have varying performance requirements. One tenant reports that their Virtual Service (vs-tenant-A) failed to scale out during a traffic spike. Another administrator mentions that a different Virtual Service (vs- internal-utils) in the same Service Engine Group was undergoing a manual scale-out at the exact same time. The administrator suspects a resource contention issue. Which Avi Controller setting could be adjusted to prevent one Virtual Service's scaling activities from impacting another?

A. Adjust the placement_mode in the Service Engine Group to 'Compact'.

B. Increase the se_group_scalable_max_cpu_pct in the cloud configuration.

C. Configure a VS-Scaleout alert with a lower threshold for vs-tenant-A.

D. Enable 'Dedicated Service Engines' for vs-tenant-A.

Correct Answer: A

Question 8

A vSphere Administrator is analyzing a log from a Virtual Service to understand the traffic flow for a specific client request.
Timestamp: 2025-10-24 11:05:00
Client IP: 10.1.1.10
VIP: 172.16.20.20:80
Pool: pool-web-prod
Server IP: 192.168.30.5
Request: GET /home.html
Response Code: 200 OK
What does the Server IP: 192.168.30.5 field in this log entry represent?

A. The IP address of the Service Engine's interface connected to the server network.

B. The IP address of the specific backend server that was chosen by the load balancer to handle this request.

C. The IP address of the Avi Controller that processed the log.

D. The IP address of the client's machine.

Correct Answer: B

Question 9

A Security Administrator is investigating an alert and reviews a Virtual Service log entry that shows a WAF event. The administrator needs to know which specific security rule was triggered by the client's request. Which fields in the WAF log data would provide this information? (Choose
2.)

A. Rule_Group

B. WAF_Mode

C. Client_IP

D. Response_Code

E. Rule_ID

Correct Answer: A,E

Question 10

A vSphere Administrator is migrating an application from a legacy load balancer that had a feature to insert a unique identifier into the HTTP headers of every request for end-to-end tracing.
The administrator needs to replicate this functionality in Avi. Which features could be used to accomplish this? (Select all that apply.)

A. Create a custom Health Monitor.

B. Create an HTTP Request Policy with a rule to "Add Header" with a system-generated variable like VS_UUID.

C. Enable the X-Forwarded-For option in the Application Profile.

D. Enable "Client Log Streaming" in the Analytics Profile.

E. Modify the SSL/TLS Profile to add the header.

F. Use a DataScript to generate a unique ID and insert it as a header.

Correct Answer: B,F

Question 11

In a Service Engine Group configured for N+M high availability, what is the state of the 'M' buffer Service Engines during normal operation?

A. They are used exclusively for processing health monitor traffic to reduce the load on the active SEs.

B. They are active and processing traffic alongside the 'N' primary Service Engines.

C. They are powered off and are powered on by the Avi Controller only when a failure occurs.

D. They are powered on and running, but are kept idle (not hosting any virtual services), ready to take over in case of a failure.

Correct Answer: D

Question 12

What feature allows multiple tenants to share the same Avi infrastructure?

A. Static Partitioning

B. VRF

C. Multi-Tenancy

D. Overlay Networking

Correct Answer: C

Question 13

An administrator is configuring a Service Engine Group for a vCenter cloud. The "VS Placement Mode" is set to "Compact". What is the expected behavior of the Avi Controller when placing a new Virtual Service into this SEG?
# Service Engine Group Configuration
Name: seg-compact-placement
VS Placement Mode: Compact
Max VS per SE: 20

A. The Controller will distribute Virtual Services evenly across all available Service Engines to keep utilization low on each one.

B. The Controller will try to place the new Virtual Service on an existing Service Engine that is already running other VSs, as long as it is below its max_vs_per_se limit.

C. The Controller will always create a new Service Engine for the new Virtual Service.

D. The Controller will randomly select a Service Engine to host the new Virtual Service.

Correct Answer: B

Question 14

A financial application is being protected by an Avi WAF policy. During a security audit, the team needs to demonstrate that the WAF is actively protecting against Cross-site Scripting (XSS) attacks and that logs are being generated for these events. Which steps must an administrator take to meet this requirement? (Select all that apply.)

A. Ensure the Virtual Service Health Score is 100.

B. Configure the WAF Policy with the System-CRS-XSS rule group enabled.

C. Generate test XSS attack traffic against the Virtual IP (VIP).

D. View the WAF Logs for the Virtual Service to find entries triggered by the XSS rule group.

E. Under the Virtual Service Analytics, check the 'Log all headers' option for Non-Significant logs.

F. Set the WAF Profile mode to WAF_MODE_ENFORCEMENT.

Correct Answer: B,C,D

Question 15

What is the primary trigger for a predictive elastic scale out event in Avi Vantage?

A. The Avi Controller's analytics engine forecasting a traffic increase based on historical data.

B. An alert being triggered by a ControlScript.

C. An administrator manually clicking the "Scale Out" button on the Virtual Service.

D. A recurring, scheduled event based on a time-of-day calendar.

Correct Answer: A

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VMware Avi Load Balancer 30.x Administrator (6V0-22.25) Free Practice Test