[Oct-2021] 4A0-N01 Pre-Exam Practice Tests | Exam Questions and Answers for Nokia Certification Study Guide
Nuage Networks Virtualized Cloud Services (VCS) Fundamentals Certification Sample Questions
NEW QUESTION 10
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.
Answer: D
NEW QUESTION 11
On which Kubernetes node is the Nuage-kube-mon component installed?
- A. On the master node.
- B. On a dedicated gateway node.
- C. On the worker node.
- D. On the network node.
Answer: C
NEW QUESTION 12
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. The policy group is the syntactic equivalent of the security group used by cloud management
systems. - C. Several vPorts ( in the same or different subnets) can be associated with one policy group.
- D. One vPort can be associated with multiple policy groups.
Answer: C
NEW QUESTION 13
What is NOT a function of VRS?
- A. VxLAN tunneling
- B. DHCP and ARP proxy
- C. Detecting VM events
- D. Libvirtd
Answer: C
NEW QUESTION 14
What statement is TRUE regarding the pull and push mode of CMS integration with Nuage Networks VCS?
- A. In the push model, CMS pushes the network configuration to VSC.
- B. In the push model, VSD pushes the network configuration to CMS.
- C. In the pull model, CMS pulls the network configuration from VSD.
- D. In the pull model, VRS pull the network configuration from CMS.
Answer: A
Explanation:
Reference:
https://www.packetcoders.io/what-is-nuage-networks-vcs-virtualized-cloud-services/
NEW QUESTION 15
What statement regarding the VRS-G is FALSE?
- A. The VRS-G is deployed on a hypervisor, following the same deployment requirements as a regular VRS.
- B. The network ports on VRS-G point towards the Nuage Networks overlay VXLAN network.
- C. Virtual machines created on the hypervisor are attached to access ports on VRS-G.
- D. The VRS-G is the software VXLAN/VLAN gateway of the Nuage Networks VCS solution.
Answer: A
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 16
What use case does not apply in virtual machine migration?
- A. Entry saving by shutting sown under-utilized servers after moving all their VNs.
- B. Optimization of East-West traffic flows.
- C. Maintenance and upgrading of the servers.
- D. Avoidance of disaster caused by a power outage or hardware failure.
Answer: B
NEW QUESTION 17
Which statement is TRUE when comparing Virtual Machines and Containers?
- A. Virtual Machines are faster to boot.
- B. All Containers on the same host use the same OS kernel.
- C. All Virtual Machines on the same hypervisor must run the same guest OS.
- D. Contained do not need a CMS.
Answer: B
NEW QUESTION 18
What statement is TRUE regarding ingress security policies?
- A. By default, all traffic is dropped at ingress.
- B. It is executed right after the floating IP NAT.
- C. An ingress security policy controls the traffic flowing into the virtual machine.
- D. It is executed right after the forwarding policy.
Answer: D
NEW QUESTION 19
Which protocol is used for VSC federation?
- A. BGP VPN-IPv4
- B. Openflow
- C. BGP EVPN
- D. XMPP
Answer: B
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 20
Which two elements of the Nuage Networks VCS Solution act respectively as the control and data plane of a virtual router?
- A. VSD and VSG
- B. VSC and VSG
- C. VSC and VRS
- D. VSD and VSC
Answer: C
Explanation:
Reference:
https://www.nuagenetworks.net/wp-content/uploads/2020/06/Nuage_Networks_VSP_Data_Sheet_EN.pdf
NEW QUESTION 21
What statement best describes the concept of Policy-Based Automation provided by Nuage Networks?
- A. The Nuage Networks VCS solution can integrate with any CMS, operate on any hypervisor, and be deployed in any data center network.
- B. Network devices as TOR/EOR switch, and leaf/spine routers, are automatically provisioned based on the configuration policy.
- 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: A
NEW QUESTION 22
What benefits does virtualization bring to a data center?
- A. Higher bandwidth, control plane simplification and reduced forwarding tables.
- B. Mobility, flexibility, and better resource utilization.
- C. Multitasking with prioritized process scheduling.
- D. More processing power, memory and disk space.
Answer: D
NEW QUESTION 23
Which statement correctly describes cloud computing?
- A. Services are statically provisioned by a cloud service provider.
- B. It provides convenient, permanent network access to a shared pool of computing resources.
- C. SDN is the key enabler for cloud computing.
- D. Services are offered as needed through the Internet.
Answer: B
Explanation:
Explanation
Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources
NEW QUESTION 24
What statement is TRUE regarding multiple virtual IP addresses assigned to a single vPort?
- A. All virtual IP addresses of a vPort must be in the same subnet.
- B. Every virtual IP address must be associated with a virtual MAC, which differs from the VM interface MAC address.
- C. One of the virtual IP addresses can be the same as the VM interface IP address.
- D. The virtual IP addresses can be in a different subnet than the VM interface IP address.
Answer: D
Explanation:
If you have only one public IP address available, and you want to host multiple servers, use aVIP.
NEW QUESTION 25
To auto-instantiate services on a 7750 DCI, which protocol needs to be enabled between the 7750 SR and
VSD?
- A. XMPP
- B. BGP EVPN
- C. SNMP
- D. Openflow
Answer: A
NEW QUESTION 26
What statement is TRUE regarding the security policies provided by Nuage VCS?
- A. The default ingress security policy allows all traffic to be forwarded.
- 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 match criteria in security policies can be based on MAC address, IP address and TCP/UDP port
number.
Answer: D
NEW QUESTION 27
Which of the following interfaces does NOT belong to the underlay network?
- A. Interface on VSD
- B. "Control" interface on VSC
- C. Hypervisor interfaces carrying VXLAN traffic.
- D. Openflow interface on VSC
Answer: B
NEW QUESTION 28
What is the function of a Virtualized Services Gateway (VSG)?
- A. To interconnect a VLAN network with a VXLAN network.
- B. To interconnect multiple data centers.
- C. To extend a data center to the internet.
- D. To enable MPLS over GRE tunneling
Answer: A
NEW QUESTION 29
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