4A0-N01 無料問題集「Nokia Nuage Networks Virtualized Cloud Services (VCS) Fundamentals」

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

（B）VSC can only be installed as virtual machines.

（C）XMPP is used to synchronize the active and standby VSCs.

（D）VSC can be deployed in standalone mode or in high-availability cluster mode.

（A）Platform as a Service (PaaS)

（B）Software as a Service (SaaS)

（C）Infrastructure as a Service (IaaS)

（D）Cloud as a Service (CaaS)

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

（B）Only the destination hypervisor's VRS agent notifies the VSC of the VM migration.

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

（D）VSD is not notified of the VM migration.

（A）The API interface provides a way to program the SDN switch directly.

（B）The SDN controller provides global provisioning of network devices.

（C）SDN supports cloud computing by automating virtual machine instantiation.

（D）Network control is fully integrated into the forwarding plane.

（A）It is a standard virtual switch that can run on any operating system.

（B）It supports most of the open protocols, for example: OSPF, BGP.

（C）It can only be configured using Openflow by an SDN controller.

（D）It provides tunneling mechanisms, for example: VXLAN.

（A）Cloud orchestration

（B）VSC functionality

（C）Top of Rack switch/Leaf router

（D）Hardware VXLAN/VLAN gateway

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

（B）In a managed L2 domain, Nuage Networks VCS manages security policies, while in an unmanaged domain, Nuage Networks VCS cannot manage the security policies.

（C）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.

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