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Pass Nokia Certification 4A0-N01 Exam With 65 Questions
NEW QUESTION 12
What statement regarding active/standby VSD cluster is TRUE?
- A. Both the primary and secondary cluster are running all VSD services.
- B. VSP components (eg: VSCs) need reconfiguration after failover.
- C. The active/standby mode is also supported in standalone VSD.
- D. XMPP connections to the secondary cluster are blocked.
Answer: C
NEW QUESTION 13
What is NOT a function of the VSC?
- A. CMS integration
- B. BGP federation
- C. SDN controller
- D. XMPP communication with VSD
Answer: C
Explanation:
Reference:
https://www.sdxcentral.com/networking/sdn/definitions/nuage-networks-vsc/
NEW QUESTION 14
What mapping is FALSE?
- A. VRSS-Control plane
- B. VSD-Management plane
- C. VSC-Control plane
- D. CMS-Management plane
Answer: A
NEW QUESTION 15
Which protocol is used for VSC federation?
- A. XMPP
- B. BGP VPN-IPv4
- C. Openflow
- D. BGP EVPN
Answer: C
Explanation:
Explanation
The VSC uses standard protocols to peer with existing networks, allowing it to discover full network topology and reachability. Through Openflow, it distributes relevant switching and routing information to hypervisors within the virtualized datacenter network.
NEW QUESTION 16
What statement regarding Openflow sessions in data center networks is TRUE?
- A. Openflow sessions run between VSCs.
- B. By default, the Openflow session is established with TCP port 6633.
- C. Openflow sessions can be established over either the data plane or the management plane.
- D. Security in mandatory with SSL encryption.
Answer: D
Explanation:
SSL (Secure Sockets Layer) is the standard security.
NEW QUESTION 17
The ML2 plug-in is part of which OpenStack project?
- A. Nova
- B. Ironic
- C. Heat
- D. Neutron
Answer: D
NEW QUESTION 18
What statement is TRUE regarding service chaining provided by Nuage VCS?
- A. Service chaining only works for virtual appliances.
- B. Service chaining is flow-based traffic redirection.
- C. It consists of packets being forwarded by the local VPLS, then through the enterprise VPRN and lastly
the backhaul VPLS. - D. A virtual firewall is required to perform service chaining.
Answer: A
NEW QUESTION 19
Which statement is TRUE when comparing Virtual Machines and Containers?
- A. All Containers on the same host use the same OS kernel.
- B. Contained do not need a CMS.
- C. Virtual Machines are faster to boot.
- D. All Virtual Machines on the same hypervisor must run the same guest OS.
Answer: A
NEW QUESTION 20
What statement about floating public IP addresses in the Nuage environment is CORRECT?
- A. NAT is performed for the traffic leaving the enterprise domain and entering the public network.
- B. They are managed by enterprise admin users.
- C. Once a floating IP is configured on the vPort , the VM will stop using its enterprise private IP address.
- D. There can be more that one floating IP address associated with one vPort.
Answer: D
NEW QUESTION 21
The ML2 plug-in is part of which OpenStack project?
- A. Nova
- B. Ironic
- C. Heat
- D. Neutron
Answer: D
Explanation:
Explanation/Reference: https://docs.openstack.org/mitaka/networking-guide/config-ml2.html
NEW QUESTION 22
What statement regarding the VRS-G is FALSE?
- A. Virtual machines created on the hypervisor are attached to access ports on VRS-G.
- B. The VRS-G is the software VXLAN/VLAN gateway of the Nuage Networks VCS solution.
- C. The VRS-G is deployed on a hypervisor, following the same deployment requirements as a regular VRS.
- D. The network ports on VRS-G point towards the Nuage Networks overlay VXLAN network.
Answer: C
Explanation:
This permits the bridging of the hypervisor-focused overlay networking and physical devices in the data center. Reference: https://jujucharms.com/nuage-vrsg/
NEW QUESTION 23
What statement correctly describes the difference between a managed Layer 2 domain and an undamaged Layer 2 domain?
- A. Managed L2 domains can have overlapping IP address pools, while unmanaged L2 domains are not allowed to have overlapping IP address pools.
- B. 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.
- 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.
Answer: A
NEW QUESTION 24
If we compare a Nuage Virtual Service Node to a physical service router, which module is VSC mapped
to?
- A. Switch fabric
- B. CPU module
- C. Line card
- D. Internal clock
Answer: A
Explanation:
Explanation/Reference:
Explanation:
The switching fabric is independent of the bus technology and infrastructure used to move data between
nodes and also separate from the router. The term is sometimes used to mean collectively all switching
hardware and software in a network.
Reference: https://searchstorage.techtarget.com/definition/switching-fabric
NEW QUESTION 25
For a packet transmitted using VxLAN encapsulation, where VxLAN header within this packet.
- A. It is added between the Layer 3 IP header and the TCP/UDP transport layer header.
- B. It is added between the UDP header and the payload
- C. It is added between the Layer 2 header and the Layer 3 IP header.
- D. It is part of the Layer 2 Ethernet header, just like VLAN.
Answer: B
NEW QUESTION 26
What statement is CORRECT regarding the extension of a VXLAN L# domain to a 7750 DCI?
- A. The VXLAN tunnel is from the domain VPRN. The tunnel payload is the IP packet.
- B. The VXLAN tunnel is from the backhaul BPLS. The tunnel payload is the IP packet.
- C. The VXLAN tunnel is fom the domain VPRN. The tunnel payload is the Ethernet frame.
- D. The VXLAN tunnel is from the baclhaul VPLS. The tunnel payload is the Ethernet frame
Answer: B
NEW QUESTION 27
What statement best describes the concept of Policy-Based Automation provided by Nuage Networks?
- A. Network devices as TOR/EOR switch, and leaf/spine routers, are automatically provisioned based on the configuration policy.
- B. The Nuage Networks VCS solution can integrate with any CMS, operate on any hypervisor, and be deployed in any data center network.
- C. The overlay network instances are automatically created according to the configuration details defined in a specific policy.
- D. The virtual machines are automatically instantiated according to the specific policy defined in the CMS.
Answer: B
NEW QUESTION 28
Which of the following is a host-centric overlay solution for a modern data center?
- A. VxLAN
- B. SPBM
- C. TRILL
- D. VPLS
Answer: A
Explanation:
Explanation/Reference:
Explanation:
Modern data center, traditional technologies are limiting the speed, flexibility, scalability, and manageability
of application deployments. There is emerging interest in the industry in overlay technologies (such as
MPLS, VXLAN, LISP...)
Reference: https://community.cisco.com/t5/data-center-documents/cisco-data-center-overlays-with-focus-
on-vxlan-slides-from/ta-p/3159545
NEW QUESTION 29
What impact does server virtualization have on a traditional datacenter network?
- A. Server virtualization requires a software upgrade of the network devices (for example, TOR/EOR switch, leaf and spine routers) in a traditional datacenter network.
- B. Traffic between the virtual machines must be carried in the overlay network, which is not supported by a traditional datacenter network.
- C. Server virtualization requires a hardware upgrade of the network devices (for example, TOR/EOR switch, leaf and spine routers) in a traditional datacenter network.
- D. Traditional network configuration involves manual interaction, which cannot keep up with the dynamic reallocation of compute resources to virtual machines.
Answer: A
NEW QUESTION 30
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. In a managed L2 domain, Nuage VCS manages security policies, while in an unmanaged domain,
Nuage VCS cannot manage the security policies. - C. 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. - D. Managed L2 domains can have overlapping IP address pools, while unmanaged L2 domains are not
allowed to have overlapping IP address pools.
Answer: D
NEW QUESTION 31
What statement about the relationship between the SDN controller and VTEP devices is correct?
- A. The optimal deployment is one SDN controller per VTEP device.
- B. The SDN controller collect VM-related information such as MAC and IP, and leads the VTEP devices with this information.
- C. The SDN controller controls VTEP devices using Openflow and tells the VTEP devices which routing/birding protocol to use to dynamically learn the VTEP forwarding table.
- D. The optimal deployment is one SDN controller for all VTEP devices
Answer: B
NEW QUESTION 32
Which statement correctly describes cloud computing?
- A. Services are offered as needed through the Internet.
- B. SDN is the key enabler for cloud computing.
- C. Services are statically provisioned by a cloud service provider.
- D. It provides convenient, permanent network access to a shared pool of computing resources.
Answer: D
Explanation:
Explanation
Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources
NEW QUESTION 33
Which two elements of the Nuage VCS solution act respectively as the control and data plane of a virtual router?
- A. VSC and VRG
- B. VSC and VRS
- C. VSD and VSG
- D. VSD and VSC
Answer: B
NEW QUESTION 34
Which of the following is a solution to create virtual is which the server runs the hypervisor as a specialized operating system and, as a consequence, there is no need for a conventional operating system?
- A. Kernel
- B. Native hypervisor
- C. Hosted hypervisor
- D. Container
Answer: B
NEW QUESTION 35
What statement about policy groups is FALSE?
- A. For an ingress security policy, if a hardware endpoint policy group is chosen as the source, the destination must also be hardware endpoints.
- B. Several vPorts ( in the same or different subnets) can be associated with one policy group.
- C. One vPort can be associated with multiple policy groups.
- D. The policy group is the syntactic equivalent of the security group used by cloud management systems.
Answer: B
NEW QUESTION 36
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