[May 05, 2026] VCEDumps 6V0-21.25 Exam Practice Test Questions (Updated 105 Questions)
Pass VMware 6V0-21.25 Exam Info and Free Practice Test
NEW QUESTION # 28
Which three logging levels are available for vDefend firewall rules?
(Choose three)
Response:
- A. Error
- B. Off
- C. Alert
- D. Informational
- E. Warning
Answer: B,D,E
NEW QUESTION # 29
Which two sources of data are used by NSX for NTA/NDR analytics?
(Choose two)
Response:
- A. Flow telemetry from virtual switches
- B. Distributed Resource Scheduler logs
- C. BIOS-level hardware alerts
- D. Threat intelligence feeds
- E. vSAN replication logs
Answer: A,D
NEW QUESTION # 30
What is the difference between IDS and IPS modes in NSX?
Response:
- A. IDS only logs alerts; IPS actively blocks detected threats
- B. IDS requires licensing; IPS does not
- C. IDS supports only physical NIC traffic; IPS supports VM traffic
- D. IDS encrypts network packets; IPS decrypts them
Answer: A
NEW QUESTION # 31
Which three benefits does micro-segmentation offer when implemented with vDefend for lateral protection?
(Choose three)
Response:
- A. Reduces unnecessary resource reservations for firewall appliances
- B. Enables fine-grained control at the VM level
- C. Enhances compliance by segmenting sensitive environments
- D. Requires centralized inspection points
- E. Limits lateral movement by enforcing workload isolation
Answer: B,D,E
NEW QUESTION # 32
Which two data sources does NSX use for malware detection and correlation?
(Choose two)
Response:
- A. NSX Certificate Store
- B. File reputation databases
- C. Threat Intelligence Feeds
- D. vMotion history logs
- E. ESXi host names
Answer: B,C
NEW QUESTION # 33
In a large-scale deployment, how can administrators reduce firewall rule sprawl and improve manageability?
Response:
- A. Disable rule logging for all policies
- B. Leverage security groups and tagging for policy abstraction
- C. Use physical IP addresses in every rule
- D. Create a rule for every individual VM
Answer: B
NEW QUESTION # 34
Which two best practices should be followed when deploying IDPS across large-scale private cloud environments?
(Choose two)
Response:
- A. Apply identical rules to every tenant for uniform protection
- B. Use adaptive threat profiles based on workload risk level
- C. Disable NSX Manager alerts to avoid false positives
- D. Enable logging for every rule regardless of impact
- E. Tune detection signatures based on observed traffic patterns
Answer: B,E
NEW QUESTION # 35
What is the primary role of a Gateway Firewall in a private cloud architecture?
Response:
- A. To monitor VM snapshot activity for security anomalies
- B. To apply policies to virtual desktop environments
- C. To inspect and control north-south traffic entering or leaving the data center
- D. To manage data deduplication and storage replication
Answer: C
NEW QUESTION # 36
Which two responsibilities fall under the scope of day-to-day security operations in a vDefend-enabled environment?
(Choose two)
Response:
- A. Monitoring rule hit counts and traffic anomalies
- B. Performing packet capture at the storage layer
- C. Performing packet capture at the storage layer
- D. Configuring PCI passthrough for GPU-intensive VMs
- E. Assigning host-based licensing to ESXi nodes
Answer: A,B
NEW QUESTION # 37
Which of the following is NOT a characteristic that describes VMware vDefend Security?
Response:
- A. Supports Policy automation
- B. Elastic scalability
- C. No network changes needed
- D. Application unaware
Answer: D
NEW QUESTION # 38
Which statement best describes the vDefend firewall's distributed architecture?
Response:
- A. It relies on dedicated hardware firewalls to offload inspection tasks
- B. Policies are enforced at the physical network core to minimize processing load
- C. It enables consistent policy enforcement by applying rules at each VM's vNIC level
- D. Security rules are applied only to north-south traffic from external clients
Answer: C
NEW QUESTION # 39
Which two advantages does the Identity Firewall provide when used in private cloud security enforcement?
(Choose two)
Response:
- A. Reduces need for tagging VMs individually
- B. Allows policy application based on user group membership
- C. Enables real-time user session tracking
- D. Applies firewall rules directly to physical switch interfaces
- E. Enforces policies at the storage controller level
Answer: B,C
NEW QUESTION # 40
Which two tools are used to troubleshoot connectivity and rule enforcement issues within a vDefend environment?
(Choose 2)
Response:
- A. Traceflow
- B. NSX Manager Packet Capture
- C. Log Insight Collector
- D. vSAN Disk Group Monitor
- E. ESXi Configuration Assist
Answer: A,B
NEW QUESTION # 41
Which three threat types can be detected by NSX Distributed IDPS?
(Choose three)
Response:
- A. Port scanning and reconnaissance
- B. DNS tunneling
- C. Snapshot file corruption
- D. Lateral movement between workloads
- E. Guest OS licensing violations
Answer: A,B,D
NEW QUESTION # 42
What is the key benefit of using vDefend to secure containerized workloads in a private cloud?
Response:
- A. It disables inter-cluster routing for isolation
- B. It secures container traffic using hypervisor-level inspection and micro-segmentation
- C. It provides automatic OS patching inside Kubernetes clusters
- D. It enables centralized physical VLAN tagging
Answer: B
NEW QUESTION # 43
Which two practices are recommended when designing an RBAC model for vDefend firewall operations?
(Choose two)
Response:
- A. Define custom roles based on operational responsibilities
- B. Assign access based on physical host groupings
- C. Assign "Enterprise Admin" to all users for full access
- D. Disable logging for users with "Read-Only" permissions
- E. Follow the principle of least privilege
Answer: A,E
NEW QUESTION # 44
What is the main advantage of using automation tools for managing distributed firewall policies in vDefend?
Response:
- A. Increases the throughput of the ESXi host's physical NICs
- B. Reduces human error and improves policy consistency across environments
- C. Creates vCenter alarms automatically
- D. Enables traffic inspection without any rule configuration
Answer: B
NEW QUESTION # 45
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