Nokia Nuage Networks Professional - Software Defined Datacenter (NNP SD-DC) 4A0-N01 Questions & Answers

• Question 31:

  What is the difference between host vPort and bridge vPort?

  A. A host vPort is provisioned on VRS-G, while a bridge vPort is provisioned on VSG.

  B. A host vPort is provisioned for VLAN traffic, while a bridge vPort is for VxLAN traffic.

  C. A host vPort only supports one VLAN, while a bridge vPort can be configured with multiple VLANs.

  D. A host vPort requires static MAC address configuration, while a bridge vPort learns MAC addresses dynamically.

  Correct Answer: A

  Bridge vPort hosted in Nuage VSG/VSA Gateways Software, VRS and VRS-G hosted vPort

  Reference: https://matscloud.blogspot.com/2017/06/nuage-networks-vsp-deep-dive.html

• Question 32:

  Which domain can be extended to a 7750 DCI by GRE tunnels?

  A. A managed L2 domain.

  B. An unmanaged L2 domain.

  C. A subnet within an L3 domain.

  D. An L3 domain.

  Correct Answer: D

• Question 33:

  What statement is TRUE regarding multiple virtual IP addresses assigned to a single vPort?

  A. The virtual IP addresses can be in a different subnet than the VM interface IP address.

  B. All virtual IP addresses of a vPort must be in the same subnet.

  C. One of the virtual IP addresses can be the same as the VM interface IP address.

  D. Every virtual IP address must be associated with a virtual MAC, which differs from the VM interface MAC address.

  Correct Answer: A

  If you have only one public IP address available, and you want to host multiple servers, use aVIP.

• Question 34:

  What statement regarding Openflow sessions in data center networks is TRUE?

  A. By default, the Openflow session is established with TCP port 6633.

  B. Openflow sessions run between VSCs.

  C. Security in mandatory with SSL encryption.

  D. Openflow sessions can be established over either the data plane or the management plane.

  Correct Answer: C

  SSL (Secure Sockets Layer) is the standard security.

• Question 35:

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

  A. Only the destination hypervisor's VRS agent notifies the VSC of the VM migration.

  B. Both the source and destination hypervisor's VRS agents notify the VSC of the VM migration.

  C. VSD is not notified of the VM migration.

  D. CMS (if used) is not notified of the VM migration.

  Correct Answer: B

• Question 36:

  To auto-instantiate services on a 7750 DCI, which protocol needs to be enabled between the 7750 SR and VSD?

  A. SNMP

  B. Openflow

  C. XMPP

  D. BGP EVPN

  Correct Answer: C

• Question 37:

  What statement correctly describes the difference between a managed Layer 2 domain and an undamaged Layer 2 domain?

  A. A managed L2 domain has one or more zones and each zone can have multiple subnets, each with its own IP address pool, while an unmanaged L2 domain does not have zones or subnets.

  B. Managed L2 domains can have overlapping IP address pools, while unmanaged L2 domains are not allowed to have overlapping IP address pools.

  C. In a managed L2 domain, Nuage VCS manages security policies, while in an unmanaged domain, Nuage VCS cannot manage the security policies.

  D. In a managed L2 domain, Nuage VCS performs DHCP and ARP proxy functions, while in an unmanaged domain VCS has no visibility of IP addresses.

  Correct Answer: B

• Question 38:

  What statement is TRUE regarding the security policies provided by Nuage VCS?

  A. The match criteria in security policies can be based on MAC address, IP address and TCP/UDP port number.

  B. Each policy entry has an associated priority that defines the order in which policy entries are evaluated.

  C. Ingress security policy controls the traffic flowing into the virtual machine.

  D. The default ingress security policy allows all traffic to be forwarded.

  Correct Answer: A

• Question 39:

  What statement about statistics rules on Nuage VCS is FALSE?

  A. Users can define statistics rules for domain/zones/subnets/vPorts. The rule applied to the most granular object is the one used.

  B. Statistics are collected in an Elasticsearch statistics engine and are aggregated over hours, days, and months.

  C. Statistics are pushed from VRS up to VSC, which in turn sends them to the VSD stats engine.

  D. When a TCA threshlod is exceeded, an event is displayed in the UI and a message is sent on the JMS bus.

  Correct Answer: A

• Question 40:

  Refer to the diagram.

  

  What is the correct sequence of events for a VM to be instantiated, and for its required network connectivity to be created with the Nuage VCS solution?

  a.

  Network domain and policy templates are defined on VSD.

  b.

  VSC queries VSD on network service and policies.

  c.

  VSD provides VSC with network service and policies.

  d.

  VRS agent informs VSC of the new VM placement.

  e.

  VSC deploys policy to applicable VRS agents.

  f.

  VM instantiated on the hypervisor.

  A.

  a->b->c->d->e->f

  B.

  a->b->c->f->d->-e

  C.

  a->f->d->b->c->-e

  D.

  f->d->b->a>c->-e

  Correct Answer: D