4A0-N01 Online Practice Questions and Answers

What statement regarding VSD user management is TRUE?

A. We can create CMS user groups for each enterprise.

B. Each enterprise user belongs to only one user group.

C. Open LDAP and Active Directory can be integrated into VSD.

D. LDAP integration is configured at the VSD global level, and it is not configurable enterprise.

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

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.

What task is NOT part of VSD policy evaluation for a newly-instantiated virtual machine?

A. Checking metadata.

B. Creating a virtual port.

C. Building a forwarding table

D. Assigning an IP address.

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.

Which of the following is NOT a goal of NFV?

A. Reduce equipment cost

B. Faster time-to-market for new services

C. Efficiency through automation

D. Increase network bandwidth

Which two elements of the Nuage Networks VCS Solution act respectively as the control and data plane of a virtual router?

A. VSD and VSC

B. VSC and VSG

C. VSC and VRS

D. VSD and VSG

For a packet transmitted using VXLAN encapsulation, where is the VXLAN header within the packet?

A. It is part of the Layer 2 Ethernet header, just like VLAN.

B. It is added between the Layer 2 header and the Layer 3 IP header.

C. It is added between the Layer 3 IP header and the TCP/UDP transport layer header.

D. It is added between the UDP header and the payload.

Refer to the diagram. Which statement is describing a step incorrectly?

A. Step a, which consists of defining network domain and policy templates on VSD, must be performed first in all situations.

B. Step d, which refers to the VRS agent informing the VSC of the placement of a new VM, is triggered by step f in which the VM is instantiated on a hypervisor.

C. Step b, in which the VSC queries VSD on network service and policies required for a new VM, is triggered either by API calls from the CMS or by manual configuration.

D. Step e, in which the forwarding tables are deployed, consists of the VSC sending them not only to the VRS agent hosting the new VM, but to all applicable VRS agents.

What is NOT a function performed by VSD?

A. VSD is the service definition point where all the network service and policy templates are created.

B. VSD is an analytics engine that can provide historic and real time information on the network and the VM usage of the network.

C. VSD communicates to the cloud management systems through RESTful APIs.

D. VSD is the DNS and NTP server for the datacenter network.