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質問 # 63
Refer to the exhibit.
An administrator would like to change the private IP address of the NAT VM I72.l6.101.il to a public address of 80.80.80.1 as the packets leave the NAT-Segment network.
Which type of NAT solution should be implemented to achieve this?
- A. NAT64
- B. DNAT
- C. Reflexive NAT
- D. SNAT
正解：D
解説：
Explanation
SNAT stands for Source Network Address Translation. It is a type of NAT that translates the source IP address of outgoing packets from a private address to a public address. SNAT is used to allow hosts in a private network to access the internet or other public networks1 In the exhibit, the administrator wants to change the private IP address of the NAT VM 172.16.101.11 to a public address of 80.80.80.1 as the packets leave the NAT-Segment network. This is an example of SNAT, as the source IP address is modified before the packets are sent to an external network.
According to the VMware NSX 4.x Professional Exam Guide, SNAT is one of the topics covered in the exam objectives2 To learn more about SNAT and how to configure it in VMware NSX, you can refer to the following resources:
VMware NSX Documentation: NAT 3
VMware NSX 4.x Professional: NAT Configuration 4
VMware NSX 4.x Professional: NAT Troubleshooting 5
質問 # 64
Refer to the exhibits.
Drag and drop the NSX graphic element icons on the left found in an NSX Intelligence visualization graph to Its correct description on the right.
正解：
解説：
質問 # 65
Which CLI command does an NSX administrator run on the NSX Manager to generate support bundle logs if the NSX UI Is inaccessible?
- A.
- B.
- C.
- D.
正解：B
解説：
Explanation
According to the web search results, the CLI command that an NSX administrator can run on the NSX Manager to generate support bundle logs if the NSX UI is inaccessible is request support-bundle. This command creates a compressed file that contains various logs and configuration files from the NSX Manager and other NSX components. The file can be downloaded from a URL that is displayed after running the command. The file can be used for troubleshooting or sent to VMware support .
質問 # 66
An architect receives a request to apply distributed firewall in a customer environment without making changes to the network and vSphere environment. The architect decides to use Distributed Firewall on VDS.
Which two of the following requirements must be met in the environment? (Choose two.)
- A. NSX version must be 3.2 and later
- B. VDS version 6.6.0 and later
- C. NSX version must be 3.0 and later
- D. vCenter 8.0 and later
正解：A、B
解説：
Explanation
Distributed Firewall on VDS is a feature of NSX-T Data Center that allows users to install Distributed Security for vSphere Distributed Switch (VDS) without the need to deploy an NSX Virtual Distributed Switch (N-VDS). This feature provides NSX security capabilities such as Distributed Firewall (DFW), Distributed IDS/IPS, Identity Firewall, L7 App ID, FQDN Filtering, NSX Intelligence, and NSX Malware Prevention. To enable this feature, the following requirements must be met in the environment:
The NSX version must be 3.2 and later1. This is the minimum version that supports Distributed Security for VDS.
The VDS version must be 6.6.0 and later1. This is the minimum version that supports the NSX host preparation operation that activates the DFW with the default rule set to allow.
References:
Overview of NSX IDS/IPS and NSX Malware Prevention
質問 # 67
An administrator needs to download the support bundle for NSX Manager. Where does the administrator download the log bundle from?
- A. System > Utilities > Tools
- B. System > Settings > Support Bundle
- C. System > Support Bundle
- D. System > Settings
正解：C
解説：
Explanation
According to the VMware NSX Documentation, this is where you can download the support bundle for NSX Manager from the NSX UI:
System > Support Bundle: This option allows you to download a support bundle that contains logs, configuration files, and diagnostic information from your NSX Manager node and cluster. You can use this option to troubleshoot issues or provide information to VMware support.
https://docs.vmware.com/en/VMware-vSphere/7.0/vmware-vsphere-with-tanzu/GUID-794C691E-B950-4838-97
https://docs.vmware.com/en/VMware-NSX/4.1/administration/GUID-73D9AF0D-4000-4EF2-AC66-6572AD1A
質問 # 68
Which two of the following features are supported for the Standard NSX Application Platform Deployment?
(Choose two.)
- A. NSX Intrusion Detection and Prevention
- B. NSX Intelligence
- C. NSX Network Detection and Response
- D. NSX Malware Prevention Metrics
- E. NSX Intrinsic Security
正解：C、E
解説：
Explanation
According to the VMware NSX Documentation, these are two of the features that are supported for the Standard NSX Application Platform Deployment:
* NSX Network Detection and Response: This feature provides advanced threat detection and response capabilities for network and application security. It includes features such as Distributed Intrusion Detection and Prevention (IDS/IPS), Web Reputation Analysis, File and Process Analysis, and NSX Advanced Threat Prevention.
* NSX Intrinsic Security: This feature provides built-in security for applications and workloads across clouds. It includes features such as Distributed Firewall, Identity Firewall, Service Insertion, Micro-segmentation, and Policy-based Automation.
質問 # 69
An NSX administrator has deployed a single NSX Manager node and will be adding two additional nodes to form a 3-node NSX Management Cluster for a production environment. The administrator will deploy these two additional nodes and Cluster VIP using the NSX UI.
What two are the prerequisites for this configuration? (Choose two.)
- A. All nodes must be in separate subnets.
- B. NSX Manager must reside on a Windows Server.
- C. All nodes must be in the same subnet.
- D. The cluster configuration must be completed using API.
- E. A compute manager must be configured.
正解：C、E
解説：
According to the VMware NSX Documentation, these are the prerequisites for adding nodes to an NSX Management Cluster using the NSX UI:
All nodes must be in the same subnet and have IP connectivity with each other.
A compute manager must be configured and associated with the NSX Manager node.
The NSX Manager node must have a valid license.
The NSX Manager node must have a valid certificate.
質問 # 70
Which TraceFlow traffic type should an NSX administrator use tor validating connectivity between App and DB virtual machines that reside on different segments?
- A. Broadcast
- B. Multicast
- C. Unicast
- D. Anycast
正解：C
解説：
Explanation
Unicast is the traffic type that an NSX administrator should use for validating connectivity between App and DB virtual machines that reside on different segments. According to the VMware documentation1, unicast traffic is the traffic type that is used to send a packet from one source to one destination. Unicast traffic is the most common type of traffic in a network, and it is used for applications such as web browsing, email, file transfer, and so on2. To perform a traceflow with unicast traffic, the NSX administrator needs to specify the source and destination IP addresses, and optionally the protocol and related parameters1. The traceflow will show the path of the packet across the network and any observations or errors along the way3. The other options are incorrect because they are not suitable for validating connectivity between two specific virtual machines. Multicast traffic is the traffic type that is used to send a packet from one source to multiple destinations simultaneously2. Multicast traffic is used for applications such as video streaming, online gaming, and group communication4. To perform a traceflow with multicast traffic, the NSX administrator needs to specify the source IP address and the destination multicast IP address1. Broadcast traffic is the traffic type that is used to send a packet from one source to all devices on the same subnet2. Broadcast traffic is used for applications such as ARP, DHCP, and network discovery. To perform a traceflow with broadcast traffic, the NSX administrator needs to specify the source IP address and the destination MAC address as FF:FF:FF:FF:FF:FF1. Anycast traffic is not a valid option, as it is not supported by NSX Traceflow. Anycast traffic is a traffic type that is used to send a packet from one source to the nearest or best destination among a group of devices that share the same IP address. Anycast traffic is used for applications such as DNS, CDN, and load balancing.
質問 # 71
Which two commands does an NSX administrator use to check the IP address of the VMkernel port for the Geneve protocol on the ESXi transport node? (Choose two.)
- A. esxcfg-nics -1l
- B. esxcfg-vmknic -1l
- C. net-dvs
- D. esxcli network ip interface ipv4 get
- E. esxcli network nic list
正解：B、D
解説：
Explanation
To check the IP address of the VMkernel port for the Geneve protocol on the ESXi transport node, an NSX administrator can use the following commands:
esxcli network ip interface ipv4 get: This command displays the IPv4 configuration of all VMkernel interfaces on the host, including their IP addresses, netmasks, and gateways. The Geneve protocol uses a VMkernel interface named geneve0 by default1 esxcfg-vmknic -l: This command lists all VMkernel interfaces on the host, along with their MAC addresses, MTU, and netstack. The Geneve protocol uses a netstack named nsx-overlay by default
https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.2/installation/GUID-B7E7371E-A9F6-4880-B184-
https://www.vmadmin.co.uk/resources/35-esxserver/49-vmkniccmd
質問 # 72
When configuring OSPF on a Tler-0 Gateway, which three of the following must match in order to establish a neighbor relationship with an upstream router? (Choose three.)
- A. Area ID
- B. Protocol and Port
- C. Naming convention
- D. Subnet mask
- E. MTU of the Uplink
- F. Address of the neighbor
正解：A、D、E
解説：
Explanation
ccording to the VMware NSX Documentation, these are the three parameters that must match in order to establish an OSPF neighbor relationship with an upstream router on a tier-0 gateway:
* MTU of the Uplink: The maximum transmission unit (MTU) of the uplink interface must match the MTU of the upstream router interface. Otherwise, OSPF packets may be fragmented or dropped, causing neighbor adjacency issues.
* Subnet mask: The subnet mask of the uplink interface must match the subnet mask of the upstream router interface. Otherwise, OSPF packets may not reach the correct destination or be rejected by the upstream router.
* Area ID: The area ID of the uplink interface must match the area ID of the upstream router interface.
Otherwise, OSPF packets may be ignored or discarded by the upstream router.
質問 # 73
An NSX administrator wants to create a Tler-0 Gateway to support equal cost multi-path (ECMP) routing.
Which failover detection protocol must be used to meet this requirement?
- A. Host Standby Router Protocol (HSRP)
- B. Bidirectional Forwarding Detection (BFD)
- C. Beacon Probing (BP)
- D. Virtual Router Redundancy Protocol (VRRP)
正解：B
解説：
Explanation
According to the VMware NSX 4.x Professional documents and tutorials, BFD is a failover detection protocol that provides fast and reliable detection of link failures between two routing devices. BFD can be used with ECMP routing to monitor the health of the ECMP paths and trigger a route change in case of a failure12. BFD is supported by both BGP and OSPF routing protocols in NSX-T3. BFD can also be configured with different timers to achieve different detection times3.
質問 # 74
Which Is the only supported mode In NSX Global Manager when using Federation?
- A. Proxy
- B. Controller
- C. Policy
- D. Proton
正解：C
解説：
NSX Global Manager is a feature of NSX that allows managing multiple NSX domains across different sites or clouds from a single pane of glass. NSX Global Manager supports Federation, which is a capability that enables synchronizing configuration and policy across multiple NSX domains. Federation has many benefits such as simplifying operations, improving resiliency, and enabling disaster recovery.
The only supported mode in NSX Global Manager when using Federation is Policy mode. Policy mode means that NSX Global Manager acts as a policy manager that defines and distributes global policies to local NSX managers in different domains. Policy mode also allows local NSX managers to have their own local policies that can override or merge with global policies.
質問 # 75
Sort the rule processing steps of the Distributed Firewall. Order responses from left to right.
正解：
解説：
Explanation
The correct order of the rule processing steps of the Distributed Firewall is as follows:
Packet arrives at vfilter connection table. If matching entry in the table, process the packet.
If connection table has no match, compare the packet to the rule table.
If the packet matches source, destination, service, profile and applied to fields, apply the action defined.
If the rule table action is allow, create an entry in the connection table and forward the packet.
If the rule table action is reject or deny, take that action.
This order is based on the description of how the Distributed Firewall works in the web search results1. The first step is to check if there is an existing connection entry for the packet in the vfilter connection table, which is a cache of flow entries for rules with an allow action. If there is a match, the packet is processed according to the connection entry. If there is no match, the packet is compared to the rule table, which contains all the security policy rules. The rules are evaluated from top to bottom until a match is found. The match criteria include source, destination, service, profile and applied to fields. The action defined by the matching rule is applied to the packet. The action can be allow, reject or deny. If the action is allow, a new connection entry is created for the packet and the packet is forwarded to its destination. If the action is reject or deny, the packet is dropped and an ICMP message or a TCP reset message is sent back to the source.
質問 # 76
What are tour NSX built-in rote-based access control (RBAC) roles? (Choose four.)
- A. Read
- B. LB Operator
- C. Full Access
- D. None
- E. Enterprise Admin
- F. Auditor
- G. Network Admin
正解：B、E、F、G
解説：
Explanation
https://docs.vmware.com/en/VMware-NSX/4.1/administration/GUID-26C44DE8-1854-4B06-B6DA-A2FD426C
質問 # 77
Which three of the following describe the Border Gateway Routing Protocol (BGP) configuration on a Tier-0 Gateway? (Choose three.)
- A. The network is divided into areas that are logical groups.
- B. Can be used as an Exterior Gateway Protocol.
- C. FIGRP Is disabled by default.
- D. BGP is enabled by default.
- E. It supports a 4-byte autonomous system number.
正解：B、C、E
解説：
The answer is A, B, and D.
A) Can be used as an Exterior Gateway Protocol. This is correct. BGP is a protocol that can be used to exchange routing information between different autonomous systems (AS). An AS is a network or a group of networks under a single administrative control. BGP can be used as an Exterior Gateway Protocol (EGP) to connect an AS to other ASes on the internet or other external networks1 B) It supports a 4-byte autonomous system number. This is correct. BGP supports both 2-byte and 4-byte AS numbers. A 2-byte AS number can range from 1 to 65535, while a 4-byte AS number can range from 65536 to 4294967295. NSX supports both 2-byte and 4-byte AS numbers for BGP configuration on a Tier-0 Gateway2 C) The network is divided into areas that are logical groups. This is incorrect. This statement describes OSPF, not BGP. OSPF is another routing protocol that operates within a single AS and divides the network into areas to reduce routing overhead and improve scalability. BGP does not use the concept of areas, but rather uses attributes, policies, and filters to control the routing decisions and traffic flow3 D) FIGRP Is disabled by default. This is correct. FIGRP stands for Fast Interior Gateway Routing Protocol, which is an enhanced version of IGRP, an obsolete routing protocol developed by Cisco. FIGRP is not supported by NSX and is disabled by default on a Tier-0 Gateway.
E) BGP is enabled by default. This is incorrect. BGP is not enabled by default on a Tier-0 Gateway. To enable BGP, you need to configure the local AS number and the BGP neighbors on the Tier-0 Gateway using the NSX Manager UI or API.
To learn more about BGP configuration on a Tier-0 Gateway in NSX, you can refer to the following resources:
VMware NSX Documentation: Configure BGP 1
VMware NSX 4.x Professional: BGP Configuration
質問 # 78
When a stateful service is enabled for the first lime on a Tier-0 Gateway, what happens on the NSX Edge node'
- A. SR is instantiated and automatically connected with DR.
- B. DR Is instantiated and automatically connected with SR.
- C. SR and DR doesn't need to be connected to provide any stateful services.
- D. SR and DR Is instantiated but requites manual connection.
正解：A
解説：
Explanation
The answer is A. SR is instantiated and automatically connected with DR.
SR stands for Service Router and DR stands for Distributed Router. They are components of the NSX Edge node that provide different functions1 The SR is responsible for providing stateful services such as NAT, firewall, load balancing, VPN, and DHCP.
The DR is responsible for providing distributed routing and switching between logical segments and the physical network1 When a stateful service is enabled for the first time on a Tier-0 Gateway, the NSX Edge node automatically creates an SR instance and connects it with the existing DR instance. This allows the stateful service to be applied to the traffic that passes through the SR before reaching the DR2 According to the VMware NSX 4.x Professional Exam Guide, understanding the SR and DR components and their functions is one of the exam objectives3 To learn more about the SR and DR components and how they work on the NSX Edge node, you can refer to the following resources:
* VMware NSX Documentation: NSX Edge Components 1
* VMware NSX 4.x Professional: NSX Edge Architecture
* VMware NSX 4.x Professional: NSX Edge Routing
質問 # 79
Which three selections are capabilities of Network Topology? (Choose three.)
- A. Display how the Physical components ate interconnected.
- B. Display the VMs connected to Segments.
- C. Display how the different NSX components are interconnected.
- D. Display the uplinks configured on the Tier-1 Gateways.
- E. Display the uplink configured on the Tier-0 Gateways.
正解：B、C、E
解説：
According to the VMware NSX Documentation, these are three of the capabilities of Network Topology, which is a graphical representation of your network infrastructure in NSX:
Display how the different NSX components are interconnected: You can use Network Topology to view how your segments, gateways, routers, firewalls, load balancers, VPNs, and other NSX components are connected and configured in your network.
Display the uplink configured on the Tier-0 Gateways: You can use Network Topology to view the uplink interface and segment that connect your tier-0 gateways to your physical network. You can also view the VLAN ID and IP address of the uplink interface.
Display the VMs connected to Segments: You can use Network Topology to view the VMs that are attached to your segments. You can also view the IP address and MAC address of each VM.
質問 # 80
Which three NSX Edge components are used for North-South Malware Prevention? (Choose three.)
- A. IDS/IPS
- B. Reputation Service
- C. Security Hub
- D. Thin Agent
- E. RAPID
- F. Security Analyzer
正解：A、C、E
解説：
Explanation
https://docs.vmware.com/en/VMware-NSX/4.1/administration/GUID-69DF70C2-1769-4858-97E7-B757CAED0 The main components on the edge node for north-south malware prevention perform the following functions:
* IDS/IPS engine: Extracts files and relays events and data to the security hub North-south malware prevention uses the file extraction features of the IDS/IPS engine that runs on NSX Edge for north-south traffic.
* Security hub: Collects file events, obtains verdicts for known files, sends files for local and cloud-based analysis, and sends information to the security analyzer
* RAPID: Provides local analysis of the file
* ASDS Cache: Caches reputation and verdicts of known files
質問 # 81
Which Is the only supported mode In NSX Global Manager when using Federation?
- A. Proxy
- B. Controller
- C. Policy
- D. Proton
正解：C
解説：
NSX Global Manager is a feature of NSX that allows managing multiple NSX domains across different sites or clouds from a single pane of glass. NSX Global Manager supports Federation, which is a capability that enables synchronizing configuration and policy across multiple NSX domains. Federation has many benefits such as simplifying operations, improving resiliency, and enabling disaster recovery.
The only supported mode in NSX Global Manager when using Federation is Policy mode. Policy mode means that NSX Global Manager acts as a policy manager that defines and distributes global policies to local NSX managers in different domains. Policy mode also allows local NSX managers to have their own local policies that can override or merge with global policies.
質問 # 82
When running nsxcli on an ESXi host, which command will show the Replication mode?
- A. get logical-switch <Logical-Switch-UUID>
- B. get logical-switch status
- C. get logical-switches
- D. get logical-switch <Local-Switch-UUID> status
正解：C
解説：
Explanation
https://vdc-download.vmware.com/vmwb-repository/dcr-public/c3fd9cef-6b2b-4772-93be-3fe60ce064a1/1f67b9
質問 # 83
What are two valid options when configuring the scope of a distributed firewall rule? (Choose two.)
- A. DFW
- B. Segment Port
- C. Tier-1 Gateway
- D. Group
- E. Segment
正解：D、E
解説：
C) Segment. This is correct. A segment is a logical construct that represents a layer 2 broadcast domain and a layer 3 subnet in NSX. A segment can be used to group and connect virtual machines, containers, or bare metal hosts that belong to the same application or service. A segment can also be used as the scope of a distributed firewall rule, which means that the rule will apply to all the traffic that enters or exits the segment12 E) Group. This is correct. A group is a logical construct that represents a collection of objects in NSX, such as segments, segment ports, virtual machines, IP addresses, MAC addresses, tags, or security policies. A group can be used to define dynamic membership criteria based on various attributes or filters. A group can also be used as the scope of a distributed firewall rule, which means that the rule will apply to all the traffic that matches the group membership criteria32
質問 # 84
Which command is used to display the network configuration of the Tunnel Endpoint (TEP) IP on a bare metal transport node?
- A. ifconfig
- B. tcpdump
- C. tepconfig
- D. debug
正解：A
解説：
Explanation
The command ifconfig is used to display the network configuration of the Tunnel Endpoint (TEP) IP on a bare metal transport node2. The TEP IP is assigned to a network interface on the bare metal server that is used for overlay traffic. The ifconfig command can show the IP address, netmask, broadcast address, and other information of the network interface. For example, the following command shows the network configuration of the TEP IP on a bare metal transport node with interface name ens192:
ifconfig ens192
The output of the command would look something like this:
ens192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.10.10 netmask
255.255.255.0 broadcast 10.10.10.255 inet6 fe80::250:56ff:fe9a:1b8c prefixlen 64 scopeid 0x20<link> ether
00:50:56:9a:1b:8c txqueuelen 1000 (Ethernet) RX packets 123456 bytes 123456789 (123.4 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 234567 bytes 234567890 (234.5 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 The TEP IP in this example is 10.10.10.10.
References:
IBM Cloud Docs
質問 # 85
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