H12-222-ENU Online Training Archives

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1. A flow mirroring port can transmit the specified service flows on the mirroring port to the monitoring device for analysis and monitoring.

TRUE

FALSE

2. In peer-to-peer VPN model, which of the following devices is directly connected to a client and is responsible for connecting VPN services to the carrier network?

Client device

3. QoS provides different service quality to meet a variety of different needs.

Which of following functions are provided by the QoS? (Multiple Choice)

Provide dedicated bandwidth.

Reduce the packet loss ratio.

Prevent and manage network congestion.

Setting the source address of packets.

4. Which IP precedence value represents the critical service traffic?

5. What about all outgoing labels in the label forwarding table of a MPLS-capable device for the same route with the same next hop?

They must be different.

They must be the same.

They may be the same.

6. How is traffic classification classified based on reference different information of rules? (Multiple Choice)

Simple traffic classification

Complex traffic classification

On-demand classification

Service traffic classification

7. Which of the following command is used to configure the listening address of the SDN controller?

openflow listening-ip 1.1.1.1

sdn controller souce-address 1.1.1.1

controller-ip 1.1.1.1

sdn listening-ip 1.1.1.1

8. Which of the following statements regarding the firewall zone is true?

Different zones of Firewall can use the same priority.

A firewall interface can belong to different zones.

Different firewall interfaces can belong to the same zone.

The default firewall zone can be deleted.

9. eSight single-server mode allows login of only one user. If another user logs in, the system displays a message indicating that a user is online currently.

TRUE

FALSE

10. Which of the following are highlights of the Service Chain component of the Agile Controller? (Multiple Choice)

Services are orchestrated based on the Layer 3 GRE tunnels and service devices can be deployed flexibly.

Service orchestration operations are visualized in the topology, simplifying the configuration and management.

Adding or deleting service devices does not change the physical topology of the live network and existing routes.

Services are orchestrated automatically, without the need for manual maintenance.

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11. Which of the following statements regarding Agile Controller guest account application mode is false?

Created by the administrator

Created by employees with guest management rights

Created by the receptionist

Registered by guests

12. Which of the following statements regarding the trusted and untrusted zones are true? (Multiple Choice)

The direction for the access from the trusted zone to the untrusted zone is the outbound direction.

The direction for the access from the trusted zone to the untrusted zone is the inbound direction.

The security level of the trusted zone is 85.

The security level of the untrusted zone is 50.

13. MPLS is a label forwarding technology.

Which of the following MPLS statements is false?

MPLS uses the connection-oriented control plane and connectionless data plane.

The control plane transmits route information and distributes labels. The data plane transmits packets along the created label switched path (ISP).

Switches in an MPLS domain only need to forward packets based on the label added before the IP header.

Compared with traditional IP forwarding, MPLS label forwarding greatly improves the data forwarding efficiency.

14. Which information of IPv4 packets is used for simple traffic classification? (Multiple Choice)

DSCP information

IP precedence

Traffic class information

802.1p information

15. The interface IP address and VRRP virtual IP address can be the same.

TRUE

FALSE

16. NFV and SDN depend on each other and must be used together.

TRUE

FALSE

17. Which of the following methods can be used to improve network QoS? (Multiple Choice)

Increasing link bandwidth

Using proper queue scheduling and congestion avoidance mechanisms

Using high-performance devices

Provide services at different times for different business

18. In the port mirroring, real and reliable data must be collected in real time.

TRUE

FALSE

19. SDN technology advocate layered open architecture. Then which organization advocate and defines the centralized architecture and Open Flow?

ONF

IETF

ETSI

ITU

20. What are the prerequisites for eSight to receive and manage alarms reported by devices? (Multiple Choice)

The devices are managed by eSight.

Trap parameters have been correctly configured on the devices.

The SNMP protocol and parameters are correctly configured for managed devices on eSight.

There are reachable routes between eSight and devices.

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21. The Agile Controller is an automated control system for network resources. It provides a unified policy engine to realize unified access control policies within the entire organization, and implements 5W1H-based (user identity, access time, access location, device type, device source, and access mode) authentication and authorization.

TRUE

FALSE

22. Compared with traffic policing, traffic shaping uses queues to cache the traffic that exceeds the limit.

Which of the following statements regarding traffic shaping is false?

Compared with traffic policing, traffic shaping has good anti-burst capability.

Traffic shaping enables packets to be transmitted at an even rate.

Because queues are used, the delay is added when congestion occurs.

Compared with traffic policing, traffic shaping is more suitable for voice services.

23. Which of the following statements regarding RT are true? (Multiple Choice)

Each VPN instance is associated with one or more pairs of VPN Target attribute, used to control VPN routing information advertisement and reception between sites.

RTs are classified into two types: Export Target and Import Target.

Export Target and Import Target are independent from each other and support multiple values to implement flexible VPN access control.

The RT value is advertised to neighbors through the BGP extended community attribute in Update messages.

24. MPLS VPN is used to solve some limitations of traditional VPN technology.

Which are the major limitation that MPLS VPN solves?

Private routes cannot communicate with each other.

Leased lines are expensive.

Bandwidth resources cannot be fully used.

The address space is overlapping.

25. Which of the following statements regarding Free Mobility of the Agile Controller are true? (Multiple Choice)

When administrators configure Free Mobility, they need to select proper authentication points and policy execution points.

In the Free Mobility, Administrators can add static network segments or server resources to security groups, and manually bind their IP addresses to the security groups.

Free Mobility uses a configuration matrix to define access permissions between two security groups such as users and servers.

Free Mobility defines higher forwarding priorities for the VIP user group to ensure their network experience.

26. At which layer does a packet filtering firewall check data packets?

Application layer

Physical layer

Network layer

Link layer

27. Besides resource discovery, allocation, and management, which function else does the VIM management module of NFV provide?

Resource scheduling

Resource monitoring

Resource reclaiming

Troubleshooting

28. What are differences between the DiffServ and IntServ models? (Multiple Choice)

The DiffServ model provides different services destined for different destinations.

The DiffServ model provides different services destined for different sources.

The DiffServ model does not need to maintain the status of each flow.

The DiffServ model applies to large-scale backbone networks.

29. In TCP/IPv4, what are potential security threats? (Multiple Choice)

There is no data source verification mechanism.

There is no data packet acknowledgement mechanism.

There is no data integrity verification mechanism.

There is no confidentiality guarantee mechanism.