Ericsson Cloud Certified Associate –Question
Study Guide with Answers & Full Explanations |
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1. What is the primary role of the NFV Orchestrator (NFVO) in the ETSI NFV
framework?
A) Managing individual Virtual Network Functions (VNFs).
B) Resource orchestration across multiple VIMs and lifecycle management of
Network Services.
C) Managing the hardware resources (servers and storage).
D) Providing the virtualization layer (Hypervisor).
Answer: B) Resource orchestration across multiple VIMs.
2. In Ericsson Cloud Execution Environment (CEE), which OpenStack component is
responsible for block storage?
A) Nova
B) Neutron
C) Cinder
D) Swift
Answer: C) Cinder
3. What is "SR-IOV" (Single Root I/O Virtualization) primarily used for in a Cloud
environment?
A) To increase storage capacity.
B) To improve network performance by allowing a VM to bypass the hypervisor
switch.
, C) To manage user passwords.
D) To backup the database.
Answer: B) To improve network performance.
4. The Ericsson Cloud Manager (ECM) interacts with which layer to trigger the
instantiation of a VNF?
A) Hardware layer
B) VIM (Virtualized Infrastructure Manager) / CEE
C) End-user mobile phone
D) Public internet
Answer: B) VIM (Virtualized Infrastructure Manager) / CEE
5. Which protocol is commonly used for communication between the SDN
Controller and the physical switches?
A) HTTP
B) OpenFlow
C) FTP
D) SMTP
Answer: B) OpenFlow
6. What is the purpose of "Affinity" and "Anti-Affinity" rules in Ericsson CEE?
A) To change the color of the dashboard.
B) To control whether VMs are placed on the same physical host or different
hosts.
C) To limit the number of users.
D) To speed up the internet connection.
Answer: B) To control whether VMs are placed on the same physical host or
different hosts.
,7. In an Ericsson NFVI solution, what is the role of the "Compute Blade"?
A) To store long-term backups.
B) To provide the processing power (CPU and RAM) for running virtual instances.
C) To manage the physical cooling system.
D) To act as a firewall for the entire building.
Answer: B) To provide processing power.
8. Which OpenStack service provides Identity management and Authentication?
A) Glance
B) Keystone
C) Horizon
D) Heat
Answer: B) Keystone
9. "Live Migration" in Ericsson Cloud refers to:
A) Moving a data center to another city.
B) Moving a running VM from one physical host to another with zero or minimal
downtime.
C) Deleting all data.
D) Upgrading the hardware while the power is off.
Answer: B) Moving a running VM with minimal downtime.
10. What is a "VNF Descriptor" (VNFD)?
A) A picture of the server.
B) A configuration template that describes the resources and connectivity
required for a VNF.
C) A list of employees.
D) A bill for the customer.
Answer: B) A configuration template.
, 11. Which Ericsson Cloud component provides the Graphical User Interface
(GUI) for OpenStack?
A) Keystone
B) Horizon
C) Heat
D) Neutron
Answer: B) Horizon
12. What is the purpose of "Glance" in the Ericsson CEE environment?
A) Monitoring CPU usage.
B) Discovering, registering, and retrieving virtual machine (VM) images.
C) Managing network IP addresses.
D) Storing database logs.
Answer: B) Discovering, registering, and retrieving VM images.
13. In the ETSI NFV architecture, what does the "VIM" manage?
A) The billing system.
B) Virtual and physical compute, storage, and network resources.
C) The customer's SIM card profile.
D) The physical cooling of the data center.
Answer: B) Virtual and physical compute, storage, and network resources.
14. What is "NUMA" (Non-Uniform Memory Access) pinning used for in Ericsson
Cloud?
A) To save electricity.
B) To optimize performance by ensuring a VM uses memory physically closest to
its assigned CPU core.
C) To encrypt the hard drive.
D) To connect to the public internet.
Answer: B) To optimize performance.