検証済み6V0-21.25問題集と解答で2026年最新の6V0-21.25をダウンロード [Q29-Q44]

検証済み6V0-21.25問題集と解答で2026年最新の6V0-21.25をダウンロード

更新された100%カバー率リアル6V0-21.25試験問題で100%合格保証付いてます

VMware 6V0-21.25 認定試験の出題範囲：

トピック	出題範囲
トピック 1	Protecting Container Workloads with vDefend Firewall: Covers applying granular, context-based security enforcement to container workloads to enable zero-trust and prevent lateral threats.
トピック 2	Gateway Firewall: Covers edge security devices that control and filter north-south network traffic, blocking unauthorized access at the network perimeter.
トピック 3	Security Automation: Covers integrating tools and scripting to automate firewall policy creation, security group management, and network configuration.
トピック 4	Lateral Protection with vDefend Distributed Firewall: Covers implementing policy-based rules to control east-west traffic and prevent lateral threat movement across the private cloud.
トピック 5	Context Aware Firewall and Identity Firewall: Covers advanced firewall controls that use user identity and application context rather than just IP addresses and ports.
トピック 6	Advanced Threat Prevention: Covers a suite of analysis tools designed to defend against both known and unknown advanced attack vectors.
トピック 7	Private Cloud Data Center Security: Covers foundational concepts for securing workloads and infrastructure within a private cloud data center environment.
トピック 8	VMware vDefend Firewall Architecture: Covers the design and components of VMware's software-defined, distributed security architecture.
トピック 9	Planning Application Segmentation with vDefend Security Intelligence: Covers using the distributed analytics engine to analyze workload and network context for developing micro-segmentation policies.
トピック 10	Malware Prevention Detection: Covers safeguarding private cloud workloads against ransomware and malicious activity targeting virtualized environments.
トピック 11	Security Operations: Covers the ongoing management and operational practices for maintaining security in a private cloud environment.
トピック 12	Role-Based Access Control: Covers creating roles and groups within the security operations team to grant appropriate portal access.
トピック 13	VMware vDefend Firewall Management: Covers day-to-day administration and management of the distributed firewall solution for securing virtualized workloads.
トピック 14	NTA (Network Traffic Analysis) & NDR (Network Detection and Response): Covers proactive threat detection and response using NTA and NDR capabilities to secure virtualized workloads and environments.
トピック 15	Shared Services Platform (SSP): Covers the back-end security data and analytics platform that underpins vDefend security services.

 

質問 # 29
Which of the following must be done in order to detect DNS anomalies with NTA? (Select all that apply)

• A. Configure a L7 APPID DNS rule allow rule
• B. Do nothing, it works out of the box
• C. Enable the DNS Tunneling and DGA detectors
• D. Configure a L4 TCP/UDP port 53 allow rule

正解：A

解説：
Network Traffic Analysis (NTA) relies heavily on understanding the context and payload of network communications, not just the ports they use. If you simply create a standard Layer 4 firewall rule allowing TCP/UDP port 53 (Option B), the firewall will let the traffic pass without deep inspection.
To detect advanced DNS anomalies (like DNS Tunneling, where attackers hide data inside DNS queries, or DGA), the NTA engine must be able to read the actual DNS query strings. By configuring a Layer 7 APPID rule specifically for DNS (Option C), you force the vDefend architecture to send that traffic through the Deep Packet Inspection (DPI) engine. This DPI visibility is an absolute prerequisite for the NTA detectors to successfully analyze the DNS payload for malicious patterns.

質問 # 30
What is the primary purpose of Network Traffic Analysis (NTA) in VMware NSX?
Response:

• A. To analyze VM snapshots and disk usage
• B. To display physical switch interface status
• C. To monitor and identify abnormal traffic patterns within virtual networks
• D. To manage DHCP and DNS configurations

正解：C

質問 # 31
Which two practices are recommended when designing lateral protection strategies for segmented workloads?
(Choose two)
Response:

• A. Disable DFW logging for compliance
• B. Leverage security groups and dynamic membership
• C. Use DNS names in all firewall rules
• D. Define granular security policies per application tier
• E. Allow all intra-cluster traffic for performance

正解：B、D

質問 # 32
Which three security features can be enforced using Gateway Firewall policies in NSX?
(Choose three)
Response:

• A. NAT and VPN rule enforcement
• B. North-south traffic segmentation
• C. L2 switching between VMs
• D. Cluster-level backup operations
• E. Stateful packet inspection

正解：A、B、E

質問 # 33
Which of the following are optional CNI Plugin functionalities? (Select all that apply)

• A. NetworkPolicy enforcement
• B. Pod network connectivity
• C. East-West service load balancing
• D. IP address management (IPAM)

正解：A、C、D

解説：
When integrating container orchestration (like Kubernetes) with VMware vDefend, a Container Network Interface (CNI) plugin (such as Antrea) is utilized. The fundamental, non-optional requirement of a CNI is providing basic pod network connectivity (Option B). However, advanced features like East-West service load balancing (kube-proxy replacement), enforcing Kubernetes NetworkPolicies (security), and handling IP Address Management (IPAM) are considered optional or configurable functionalities depending on the specific CNI implementation and how the cluster is architected to integrate with vDefend.

質問 # 34
Which of the following is true regarding VMware vDefend security solutions?

• A. Provides decentralized control
• B. Eliminates the needs for additional security controls
• C. Scales linearly with the data center
• D. Requires logical networking components from VMware Cloud Foundation

正解：C

解説：
The fundamental architectural advantage of a software-defined, distributed security model like VMware vDefend is its scalability. In a legacy hardware environment, if your data center traffic doubles, you must purchase and rack larger, more expensive physical firewalls to handle the choke point.
Because vDefend's Distributed Firewall and Distributed IDS run directly inside the hypervisor on every host, the security capacity scales linearly. Every time you add a new ESXi server to your vSphere cluster to increase compute capacity, you automatically and proportionally add more firewall throughput and inspection capacity to the environment without creating a centralized bottleneck. (Note: Control remains centralized via the NSX Manager, making Option B false).

質問 # 35
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. Requires centralized inspection points
• C. Enables fine-grained control at the VM level
• D. Enhances compliance by segmenting sensitive environments
• E. Limits lateral movement by enforcing workload isolation

正解：B、C、E

質問 # 36
Which feature is available when using IDS on the Edge Gateway and not available on distributed IDS?

• A. Expanded Signature Set
• B. Detection Mode
• C. Impact Score
• D. TLS Inspection

正解：D

解説：
A significant portion of modern malware and exploit traffic hides inside encrypted HTTPS tunnels. To inspect this traffic, the security appliance must decrypt it first.
TLS Inspection (Decryption/Proxying) is highly resource-intensive and requires complex certificate management (acting as a Man-in-the-Middle). In the vDefend architecture, this heavy lifting is delegated to the Edge Nodes via the Gateway IDS/IPS.
The Distributed IDS/IPS-which runs directly inside the ESXi hypervisor kernel at the VM's vNIC-is designed for lightning-fast, highly optimized East-West inspection without massive CPU overhead. Therefore, inline TLS decryption/inspection is exclusively a Gateway IDS/IPS feature and is not performed by the Distributed IDS engine.

質問 # 37
Which three potential misconfigurations should be checked when troubleshooting Distributed Firewall enforcement failures?
(Choose three)
Response:

• A. Rule precedence and ordering issues
• B. Disabled logging on Tier-0 Gateway
• C. Incorrect security group membership
• D. Service insertion or redirection failure
• E. Overlapping NSX VLAN transport zones

正解：A、C、D

質問 # 38
You need to control traffic between the different zones of your IT infrastructure (I.E. Production, Dev, and DMZ). How should you build the respective security tags to be able to easily refer to all of them in your orchestration tool?

• A. Define each zone with a unique scope, use the same tag for all zones
• B. Define each zone with the same tag, use a unique scope for each tag
• C. Define each zone with a unique tag and a unique scope
• D. Define each zone with a unique tag, use the same scope for all tags

正解：D

解説：
In vDefend, tags are constructed using a key-value pair system comprised of a "Scope" (the category) and a "Tag" (the specific value). When automating security deployments via APIs or orchestration tools (like Aria Automation or Terraform), standardizing this structure is critical for dynamic grouping.
The best practice is to use the same scope (e.g., Scope = "Zone") and assign a unique tag for each environment (e.g., Tag = "Production", Tag = "Dev", Tag = "DMZ"). This allows an automation script to easily query the API by saying, "Show me all objects where the Scope is 'Zone'," instantly retrieving the VMs across all your different infrastructure environments for reporting or dynamic firewall grouping.

質問 # 39
Which component allows administrators to view intrusion detection alerts and threat severity in NSX?
Response:

• A. vRealize Network Insight
• B. NSX Security Overview Dashboard
• C. vSphere Host Web Client
• D. NSX Edge CLI

正解：B

質問 # 40
What is a confidence score in regard to IDS/IPS scores?

• A. Confidence of the detection being accurate
• B. Confidence of the detection being inaccurate
• C. Numeric value indicating "badness" of a threat
• D. Combined Value of Risk Score and confidence score 0-100

正解：A

解説：
In Intrusion Detection Systems, false positives (flagging legitimate traffic as an attack) are a major operational headache that cause "alert fatigue." To help security analysts prioritize their time, VMware vDefend Threat Intelligence assigns a Confidence Score to its signatures and resulting alerts.
This score specifically represents the system's confidence of the detection being accurate (a true positive). A high confidence score means the signature is highly specific and the context of the traffic almost definitively proves malicious intent, meaning the analyst should act immediately. The "badness" or potential damage of the threat (Option A) is represented by a separate metric called "Severity."

質問 # 41
If you want to run Gateway IDS/IPS, what is the minimum Edge Form Factor size supported to run this feature?

• A. Medium
• B. Large
• C. X-Large
• D. Small

正解：B

解説：
Gateway IDS/IPS is an incredibly resource-intensive service. Unlike basic stateful firewall rules that just check IP headers and ports, Gateway IDS/IPS performs complex Deep Packet Inspection (DPI) against thousands of threat signatures for heavy North-South perimeter traffic. Furthermore, it often handles TLS Inspection (Decryption), which requires massive CPU and memory allocations.
Because of these heavy computational requirements, VMware restricts the deployment of Gateway IDS/IPS to Edge Nodes deployed with a minimum form factor size of Large. Deploying this service on Small or Medium Edge nodes is unsupported, as they lack the compute resources and would immediately bottleneck data center traffic.

質問 # 42
What of the following is true regarding Dynamic groups and Static groups in vDefend?

• A. In static groups the members of the groups are manually defined and in dynamic groups expressions are used
• B. Static groups can only include virtual machines and its network adapters
• C. Static groups which contain Logical Switches/Segments can only be used for Policy based routing
• D. Dynamic groups which contain Logical Switches/Segments can only be used for Policy based routing

正解：A

解説：
In vDefend (NSX), grouping objects is the foundation of creating scalable security policies.
Static Groups: As the name implies, these require an administrator to manually select and add specific inventory objects (like individual VMs, exact IP addresses, or MAC addresses) to the group. If a new VM is spun up, the administrator must manually add it to the static group for the firewall rule to apply.
Dynamic Groups: These utilize criteria-based expressions (e.g., "VM Name contains 'WEB'" or "VM Tag equals 'Production'"). This is the highly recommended approach for modern micro-segmentation. When a new VM is provisioned that matches the expression (e.g., it is tagged as "Production"), vDefend automatically adds it to the dynamic group and applies the necessary firewall rules without any manual administrative intervention.

質問 # 43
Which core architectural feature enables the vDefend Distributed Firewall (DFW) to apply security policies directly at the hypervisor level?
Response:

• A. Kernel-based packet filtering
• B. NSX Intelligence Engine
• C. Distributed Services Engine
• D. Edge Service Gateway

正解：A

質問 # 44
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