Free Nuage Networks Virtualized Cloud Services (VCS) Fundamentals Exam 4A0-N01 Exam Practice Test

What statement about Open vSwitch is TRUE?

• It is a standard virtual switch that can run on any operating system.
• It can only be configured using Openflow by an SDN controller.
• It provides tunneling mechanisms, for example: VXLAN.
• It supports most of the open protocols, for example: OSPF, BGP.

What statement is FALSE regarding the relationship between a zone and a subnet within a domain?

• Each zone can have multiple subnets.
• Each subnet can belong to multiple zones.
• A QoS policy defined at the subnet level takes precedence over a QoS policy defined at the zone level.
• A security policy applied to the zone impacts all subnets associated to that zone.

What statement about statistics rules on Nuage VCS is FALSE?

• Users can define statistics rules for domain/zones/subnets/vPorts. The rule applied to the most granular object is the one used.
• Statistics are collected in an Elasticsearch statistics engine and are aggregated over hours, days, and months.
• Statistics are pushed from VRS up to VSC, which in turn sends them to the VSD stats engine.
• When a TCA threshlod is exceeded, an event is displayed in the UI and a message is sent on the JMS bus.

If we compare a Nuage Virtual Service Node to a physical service router, which module is VSC mapped to?

• Switch fabric
• Line card
• CPU module
• Internal clock

Which statement is TRUE when comparing Virtual Machines and Containers?

• Virtual Machines are faster to boot.
• Contained do not need a CMS.
• All Virtual Machines on the same hypervisor must run the same guest OS.
• All Containers on the same host use the same OS kernel.

What is the difference between host vPort and bridge vPort?

• A host vPort is provisioned on VRS-G, while a bridge vPort is provisioned on VSG.
• A host vPort is provisioned for VLAN traffic, while a bridge vPort is for VxLAN traffic.
• A host vPort only supports one VLAN, while a bridge vPort can be configured with multiple VLANs.
• A host vPort requires static MAC address configuration, while a bridge vPort learns MAC addresses dynamically.

What statement about policy groups is FALSE?

• Several vPorts (in the same or different subnets) can be associated with one policy group.
• One vPort can be associated with multiple policy groups.
• For an ingress security policy, if a hardware endpoint policy group is chosen as the source, the destination must also be hardware endpoints.
• The policy group is the syntactic equivalent of the security group used by cloud management systems.

What statement regarding VSD user management is TRUE?

• We can create CMS user groups for each enterprise.
• Each enterprise user belongs to only one user group.
• Open LDAP and Active Directory can be integrated into VSD.
• LDAP integration is configured at the VSD global level, and it is not configurable enterprise.

What statement is TRUE regarding the workflow for live migration of a virtual machine with Nuage Networks VCS?

• Only the destination hypervisor's VRS agent notifies the VSC of the VM migration.
• Both the source and destination hypervisor's VRS agents notify the VSC of the VM migration.
• VSD is not notified of the VM migration.
• CMS (if used) is not notified of the VM migration.

What is NOT a function of VRS?

• VXLAN tunneling
• Detecting VM events
• DHCP and ARP proxy
• Libvirtd