[Jun-2026] VMware 6V0-21.25 Exam: Basic Questions With Answers
New 2026 Realistic Free VMware 6V0-21.25 Exam Dump Questions and Answer
NEW QUESTION # 32
Which two methods can be used to monitor the hit count for vDefend firewall rules?
(Choose two)
Response:
- A. NSX Manager UI
- B. NSX API
- C. vSphere Client Network tab
- D. Log Insight dashboards
- E. vCenter High Availability panel
Answer: A,B
NEW QUESTION # 33
Which rule type is most suitable for controlling lateral movement between VMs in a specific security group?
Response:
- A. IDS Policy
- B. Distributed Firewall Policy
- C. Gateway Firewall Rule
- D. NAT Rule
Answer: B
NEW QUESTION # 34
Which three benefits are achieved through VMware vDefend firewall's software-defined architecture?
(Choose three)
Response:
- A. Reduced dependency on physical firewalls
- B. Scalability with infrastructure growth
- C. Centralized enforcement at the data center edge
- D. Elimination of hypervisor patching needs
- E. Fine-grained workload isolation
Answer: A,B,E
NEW QUESTION # 35
Which three characteristics define a mature NDR solution in a virtualized environment?
(Choose three)
Response:
- A. Machine learning-based anomaly detection
- B. Dependence on manual rule entry
- C. Built-in support for distributed block storage
- D. Real-time correlation with external threat feeds
- E. Integration with security automation tools
Answer: A,D,E
NEW QUESTION # 36
Which three key attributes define a vDefend firewall rule?
(Choose three)
Response:
- A. Log Level
- B. Destination
- C. Source
- D. Service
- E. Uplink Type
Answer: B,C,D
NEW QUESTION # 37
What is the primary purpose of Network Traffic Analysis (NTA) in VMware NSX?
Response:
- A. To manage DHCP and DNS configurations
- B. To analyze VM snapshots and disk usage
- C. To display physical switch interface status
- D. To monitor and identify abnormal traffic patterns within virtual networks
Answer: D
NEW QUESTION # 38
How can the Gateway Firewall contribute to a Zero Trust model?
Response:
- A. By disabling TLS termination on perimeter firewalls
- B. By inspecting external traffic and enforcing strict boundary controls
- C. By allowing unrestricted intra-cluster communications
- D. By dynamically routing traffic through storage switches
Answer: B
NEW QUESTION # 39
What is the primary benefit of applying micro-segmentation within a private cloud data center security model?
Response:
- A. It enables faster deployment of distributed storage volumes
- B. It improves VM snapshot performance during backup operations
- C. It isolates sensitive workloads with granular east-west traffic control
- D. It reduces the cost of licensing hypervisors in a multi-tenant environment
Answer: C
NEW QUESTION # 40
Which component is responsible for defining the security policy in a software-defined firewall architecture?
Response:
- A. NSX Policy API or UI
- B. vSphere Update Manager
- C. DRS Load Balancer
- D. NSX Application Platform
Answer: A
NEW QUESTION # 41
What is the difference between IDS and IPS modes in NSX?
Response:
- A. IDS requires licensing; IPS does not
- B. IDS supports only physical NIC traffic; IPS supports VM traffic
- C. IDS encrypts network packets; IPS decrypts them
- D. IDS only logs alerts; IPS actively blocks detected threats
Answer: D
NEW QUESTION # 42
Which two actions can a Gateway Firewall rule perform when evaluating network traffic?
(Choose two)
Response:
- A. Log the traffic flow for auditing purposes
- B. Allow or deny traffic based on source/destination criteria
- C. Encrypt the payload before delivery
- D. Modify subnet masks dynamically
- E. Redirect traffic to a Distributed Firewall
Answer: A,B
NEW QUESTION # 43
Which two techniques are fundamental to securing private cloud infrastructure from lateral threat movement within the data center?
(Choose two)
Response:
- A. Consolidating all VMs to a single cluster
- B. Applying context-aware DFW rules
- C. Implementing storage tiering for sensitive data
- D. Utilizing network traffic mirroring tools only at the edge
- E. Enabling east-west micro-segmentation policies
Answer: B,E
NEW QUESTION # 44
What is the role of the Shared Services Platform (SSP) in VMware's vDefend architecture?
Response:
- A. It manages vSphere storage policies for encrypted datastores
- B. It provides centralized routing for external connectivity
- C. It serves as the default backup proxy for distributed firewalls
- D. It hosts telemetry and analytics services for firewall rule recommendations
Answer: D
NEW QUESTION # 45
What is required to enable IDPS functionality in NSX?
Response:
- A. Enable service chaining with third-party antivirus
- B. Install NSX on vSAN witness appliances
- C. Enable Transparent Packet Forwarding on vCenter
- D. Deploy Distributed IDPS sensors on ESXi hosts
Answer: D
NEW QUESTION # 46
How does the zero-trust security model apply to private cloud data centers?
Response:
- A. By automatically allowing all north-south traffic
- B. By eliminating the need for firewall policies altogether
- C. By using a perimeter firewall to secure the virtual environment
- D. By enforcing verification and least-privilege access at every level
Answer: D
NEW QUESTION # 47
Which two capabilities are provided by the Advanced Threat Prevention module in NSX?
(Choose two)
Response:
- A. Real-time threat intelligence integration
- B. Snapshot isolation of encrypted VMs
- C. NSX Edge load balancing across multiple datacenters
- D. Inline malware scanning using sandboxing
- E. Storage acceleration for vSAN clusters
Answer: A,D
NEW QUESTION # 48
What is the primary function of vDefend Security Intelligence in planning application segmentation?
Response:
- A. Monitors compliance scores across ESXi hosts
- B. Automatically provisions firewall rules to external DNS servers
- C. Visualizes traffic flows and recommends segmentation policies
- D. Creates backup policies for NSX Manager logs
Answer: C
NEW QUESTION # 49
Which three security features can be enforced using Gateway Firewall policies in NSX?
(Choose three)
Response:
- A. L2 switching between VMs
- B. Stateful packet inspection
- C. North-south traffic segmentation
- D. Cluster-level backup operations
- E. NAT and VPN rule enforcement
Answer: B,C,E
NEW QUESTION # 50
Which two tools are used to troubleshoot connectivity and rule enforcement issues within a vDefend environment?
(Choose 2)
Response:
- A. Traceflow
- B. Log Insight Collector
- C. vSAN Disk Group Monitor
- D. ESXi Configuration Assist
- E. NSX Manager Packet Capture
Answer: A,E
NEW QUESTION # 51
Which three benefits does rule publishing via NSX Policy Mode provide in vDefend firewall management?
(Choose three)
Response:
- A. Ensures consistent configuration across regions
- B. Supports declarative policy management
- C. Allows section-level version control
- D. Enables auto-scaling of compute clusters
- E. Reduces risk of configuration drift
Answer: A,B,E
NEW QUESTION # 52
In a large-scale deployment, how can administrators reduce firewall rule sprawl and improve manageability?
Response:
- A. Create a rule for every individual VM
- B. Disable rule logging for all policies
- C. Leverage security groups and tagging for policy abstraction
- D. Use physical IP addresses in every rule
Answer: C
NEW QUESTION # 53
Which two best practices should be followed when deploying IDPS across large-scale private cloud environments?
(Choose two)
Response:
- A. Disable NSX Manager alerts to avoid false positives
- B. Use adaptive threat profiles based on workload risk level
- C. Tune detection signatures based on observed traffic patterns
- D. Apply identical rules to every tenant for uniform protection
- E. Enable logging for every rule regardless of impact
Answer: B,C
NEW QUESTION # 54
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