VMware VMware Certifications 2V0-41.23 Questions & Answers

• Question 31:

  Which two statements are true about IDS Signatures? (Choose two.)

  A. Users can upload their own IDS signature definitions.

  B. An IDS signature contains data used to identify known exploits and vulnerabilities.

  C. An IDS signature contains data used to identify the creator of known exploits and vulnerabilities.

  D. IDS signatures can be High Risk, Suspicious, Low Risk and Trustworthy.

  E. An IDS signature contains a set of instructions that determine which traffic is analyzed.

  Correct Answer: BE

  According to the Network Bachelor article1, an IDS signature contains data used to identify an attacker's attempt to exploit a known vulnerability in both the operating system and applications. This implies that statement B is true. According to the VMware NSX Documentation2, IDS/IPS Profiles are used to group signatures, which can then be applied to select applications and traffic. This implies that statement E is true. Statement A is false because users cannot upload their own IDS signature definitions, they have to use the ones provided by VMware or Trustwave3. Statement C is false because an IDS signature does not contain data used to identify the creator of known exploits and vulnerabilities, only the exploits and vulnerabilities themselves. Statement D is false because IDS signatures are classified into one of the following severity categories: Critical, High, Medium, Low, or Informational1. Reference: 3: Distributed IDS/IPS Settings and Signatures-VMware Docs 2: Distributed IDS/IPS-VMware Docs 1: NSX-T: Exploring Distributed IDS-Network Bachelor

• Question 32:

  A customer is preparing to deploy a VMware Kubernetes solution in an NSX environment.

  What is the minimum MTU size for the UPLINK profile?

  A. 1500

  B. 1550

  C. 1700

  D. 1650

  Correct Answer: C

  The minimum MTU size for the UPLINK profile is 1700 bytes. This is because the UPLINK profile is used to configure the physical NICs that connect to the NSX-T overlay network. The overlay network uses geneve encapsulation, which adds an overhead of 54 bytes to the original packet. Therefore, to support a standard MTU of 1500 bytes for the inner packet, the outer packet must have an MTU of at least 1554 bytes. However, VMware recommends adding an extra buffer of 146 bytes to account for possible additional headers or VLAN tags. Therefore, the minimum MTU size for the UPLINK profile is 1700 bytes (1554 + 146). References: : VMware NSX-T Data Center Installation Guide, page 23. : VMware NSXT Data Center Administration Guide, page 102. : VMware NSX-T Data Center Installation Guide, page 24. https://nsx.techzone.vmware.com/resource/nsx-reference-design-guide#a-31-the-nsx-virtual-switch

• Question 33:

  A company security policy requires all users to log Into applications using a centralized authentication system.

  Which two authentication, authorization, and accounting (AAA) systems are available when Integrating NSX with VMware Identity Manager? (Choose two.)

  A. RADII 2.0

  B. Keyoen Enterprise

  C. RSA SecurelD

  D. LDAP and OpenLDAP based on Active Directory (AD)

  E. SecureDAP

  Correct Answer: CD

  NSX supports two types of authentication, authorization, and accounting (AAA) systems when integrating with VMware Identity Manager: RSA SecurID and LDAP and OpenLDAP based on Active Directory (AD). RSA SecurID is a two-factor authentication system that uses a token-based approach to verify the identity of users. LDAP and OpenLDAP based on AD are directory services that store and manage user information and credentials. Both systems can be used to provide centralized authentication for users who want to access applications in an NSX environment . https://blogs.vmware.com/networkvirtualization/2017/11/remote-user-authentication-and-rbac-with-nsx-t.html

  The integration of VMware Identity Manager with NSX provides the following benefits related to user authentication:

  Support for extensive authentication, authorization, and accounting (AAA) systems, including:

  --RADIUS --Smart cards and common access cards --RSA SecureID --LDAP and OpenLDAP based on Active Directory (AD) Enterprise SSO: --Common authentication platform across multiple VMware solutions--Seamless SSO experience

  NSX has its own native LDAP and Active Directory integration, but VMware Identity Manager also offers this capability

• Question 34:

  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. The cluster configuration must be completed using API.

  C. NSX Manager must reside on a Windows Server.

  D. All nodes must be in the same subnet.

  E. A compute manager must be configured.

  Correct Answer: DE

  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.

• Question 35:

  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. Naming convention

  B. MTU of the Uplink

  C. Subnet mask

  D. Address of the neighbor

  E. Protocol and Port

  F. Area ID

  Correct Answer: BCF

  according 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. https://www.computernetworkingnotes.com/ccna-study-guide/ospf-neighborship-condition-and-requirement.html

• Question 36:

  When collecting support bundles through NSX Manager, which files should be excluded for potentially containing sensitive information?

  A. Controller Files

  B. Management Files

  C. Core Files

  D. Audit Files

  Correct Answer: C

  According to the VMware NSX Documentation1, core files and audit logs can contain sensitive information and should be excluded from the support bundle unless requested by VMware technical support. Controller files and management files are not mentioned as containing sensitive information. Reference: 1: Support Bundle Collection Tool-VMware Docs

  Core files and Audit logs might contain sensitive information such as passwords or encryption keys. https://docs.vmware.com/en/VMware-NSX/4.1/administration/GUID-73D9AF0D-4000-4EF2-AC66-6572AD1A0B30.html

• Question 37:

  Which steps are required to activate Malware Prevention on the NSX Application Platform?

  A. Select Cloud Region and Deploy Network Detection and Response.

  B. Activate NSX Network Detection and Response and run Pre-checks.

  C. Activate NSX Network Detection and Response and Deploy Malware Prevention.

  D. Select Cloud Region and run Pre-checks.

  Correct Answer: D

  To activate Malware Prevention on the NSX Application Platform, the steps are:

  In the NSX Manager UI, select System and in the Configuration section, select NSX Application Platform.

  Navigate to the Features section, locate the NSX Malware Prevention feature card, and click Activate or anywhere in the card.

  In the NSX Malware Prevention activation window, select one of the available cloud regions from which you can access the NSX Advanced Threat Prevention cloud service.

  Click Run Prechecks. This precheck process can take some time as the system validates that the minimum license requirement is met and that it is eligible for use with the NSX Advanced Threat Prevention cloud service. The system also

  validates that the selected cloud region is reachable. Click Activate. This step can take some time1. Therefore, the correct answer is D. The other options are incorrect because they involve activating or deploying NSX Network Detection and

  Response, which is a different feature from Malware Prevention. References: Activate NSX Malware Prevention

• Question 38:

  An administrator has a requirement to have consistent policy configuration and enforcement across NSX instances.

  What feature of NSX fulfills this requirement?

  A. Load balancer

  B. Federation

  C. Multi-hypervisor support

  D. Policy-driven configuration

  Correct Answer: B

  Federation is a feature of NSX that allows the administrator to manage multiple NSX instances with a single pane of glass view, create gateways and segments that span one or more locations, and configure and enforce firewall rules consistently across locations1. Federation provides centralized policy management for security and networking services for all locations and pushes it down to NSX Local Managers at the respective sites for enforcement1. Federation also enables disaster recovery and workload mobility scenarios by providing consistent network and security policies across different sites1. References: 1: NSX Federation-VMware Docs(https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.2/administration/GUID-D5B6DC79-6733-44A7-8072-50221CF2122A.html)

• Question 39:

  Which command Is used to test management connectivity from a transport node to NSX Manager?

  A. esxcli network ip connection list | grep 1234

  B. esxcli network connection list | grep 1235

  C. esxcli network ip connection list | grep 1235

  D. esxcli network connection list | grep 1234

  Correct Answer: C

  The NSX Manager management plane communicates with the transport nodes by using APH Server over NSX-RPC/TCP through port 1234. CCP communicates with the transport nodes by using APH Server over NSX-RPC/TCP through port 1235. Reference: https://docs.vmware.com/en/VMware-NSX/4.1/installation/GUID-FD3140B2-81BD-4FE7-9A23-4EB55B4E3099.html

• Question 40:

  An NSX administrator is creating a Tier-1 Gateway configured In Active-Standby High Availability Mode. In the event of node failure, the failover policy should not allow the original tailed node to become the Active node upon recovery.

  Which failover policy meets this requirement?

  A. Non-Preemptive

  B. Preemptive

  C. Enable Preemptive

  D. Disable Preemptive

  Correct Answer: A

  According to the VMware NSX Documentation, a non-preemptive failover policy means that the original failed node will not become the active node upon recovery, unless the current active node fails again. This policy can help avoid

  unnecessary failovers and ensure stability.

  The other options are either incorrect or not available for this configuration. Preemptive is the opposite of non-preemptive, meaning that the original failed node will become the active node upon recovery, if it has a higher priority than the

  current active node. Enable Preemptive and Disable Preemptive are not valid options for the failover policy, as the failover policy is a drop-down menu that only has two choices: Preemptive and Non-Preemptive.