4A0-N01 Online Practice Questions and Answers

Which of the following is a host-centric overlay solution for a modern data center?

A. SPBM

B. TRILL

C. VxLAN

D. VPLS

What statement about virtual switches is FALSE?

A. A virtual switch is typically implemented within the hypervisor so that the network is extended onto the server.

B. Virtual switches are VLAN capable.

C. Typically, virtual switches are as capable as physical switches, eg: LAG, hardware-based QoS.

D. If a virtual switch is not on the hypervisor, all traffic will go out of the physical NIC.

What does VSD stand for?

A. Virtualized Services Description

B. Virtualized Services Definition

C. Virtualized Services Domain

D. Virtualized Services Directory

What statement regarding VSC deployment is TRUE?

A. VSC can be deployed in standalone mode or in high-availability cluster mode.

B. VSC can only be installed as virtual machines.

C. VSC is based on SR OS, and thus can be integrated module on the 7750 SR.

D. XMPP is used to synchronize the active and standby VSCs.

What three main components comprise the Nuage Networks VCS solution?

A. VSD, VSC, and VSG

B. VSD, VSC, and VRS

C. VNS, VSC, and VSG

D. VNS, VRS, and VSG

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.

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.

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.

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

The ML2 plug-in is part of which OpenStack project?

A. Neutron

B. Ironic

C. Nova

D. Heat

What is NOT a function of the VSC?

A. CMS integration

B. SDN controller

C. BGP federation

D. XMPP communication with VSD

What is NOT a component of VSD?

A. Neutron

B. Statistics Engine

C. Policy Management Engine

D. RESTful API

Which of the following interfaces does NOT belong to the underlay network?

A. Interface on VSD

B. “Control” interface on VSC

C. Openflow interface on VSC

D. Hypervisor interfaces carrying VXLAN traffic.

What statement about the Nuage Networks VCS solution is FALSE?

A. It virtualizes and automates the datacenter network infrastructure.

B. It leverages a variety of open source components such as Openflow and Libvirt.

C. The SDN controller of Nuage Networks VCS, is based on the Nokia 7750 SR OS, which is a proven and highly reliable software component.

D. It requires a specific architecture for its networking hardware infrastructure.

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.