QUESTION 1
Which of the following is not an advantage of link aggregation on CE series switches?

A. Increased bandwidth
B. Improved reliability
C. Improved forwarding performance of switches
D. Load balancing supported

Correct Answer: C
QUESTION 2
Which of the following statements are true about common storage types used by enterprises?

A. Block storage applies to databases that require high I/O.
B. Block storage typically applies to remote backup storage.
C. servers are typically used for file storage.
D. Object storage devices are typically disk arrays.

Correct Answer: AC
QUESTION 3
Which of the following statements are true about configuring network devices through NETCONF, CLI, and SNMP?

A. Network devices from different vendors use the same CLI format, making the CLI-based network device configuration method efficient.
B. The NETCONF-based network device configuration method supports multiple transaction processing mechanisms, such as trial running, rollback upon errors, and configuration rollback.
C. The NETCONF-based network device configuration method can be used to deliver configurations to network devices in batches.
D. The SNMP-based network device configuration method supports various security protocols, such as SSH, TLS, and HTTP.

Correct Answer: BC
QUESTION 4
Which of the following technologies are Layer 4 load balancing technologies?

A. PPP
B. LVS

C. HAProxy
D. Nginx

Correct Answer: BC
QUESTION 5
Which of the following statements is false about the services provided by the components involved in the VM onboarding process?

A. Cinder provides block storage services.
B. Nova provides network services.
C. Without the Glance service, OpenStack can still provide simple VM images.
D. Horizon provides a unified GUI.

Correct Answer: BC
QUESTION 6
In the DCN architecture, which of the following VASs can be provided?

A. Firewall
B. In-depth detection
C. Load balancing
D. Intrusion prevention

Correct Answer: ABCD
QUESTION 7
When constructing a large Layer 2 network, which of the following protocols runs in the control plane to transmit VM IP addresses and MAC addresses?

A. VXLAN
B. OSPF
C. BGP EVPN
D. VLAN

Correct Answer: C
QUESTION 8
Hierarchical protection domains, also called protection rings, are defined for CPU instructions. Which of the following rings are included?

A. Ring1
B. Ring2
C. Ring4
D. Ring3

Correct Answer: ABD
QUESTION 9
Which of the following components in the FusionCompute virtualization suite can implement DR service management?

A. UitraVR
B. OVS
C. eBackup
D. KRM

Correct Answer: A
QUESTION 10
Which of the following resource management belongs to compute resource management?

A. VM management
B. Disk management
C. Port group management
D. Cluster management

Correct Answer: AD
QUESTION 11
Hierarchical protection domains, also called protection rings, are defined for CPU instructions. Ring                ，the least privileged ring, is where most applications reside. (Enter a digit.)

Correct Answer: 3
QUESTION 12
Hosted virtualization can invoke hardware resources without relying on the underlying host OS.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 13
The figure shows the VXLAN packet format. Which of the following statements is false about the packet?

A. The source MAC address in the outer Ethernet header is the MAC address of the VTEP to which the VM that sends the packet belongs.
B. The source IP address in the outer Ip header is the IP address of a VXLAN tunnel’s local VTEP.
C. The VXLAN header contains the VNI, which is used to differentiate tenants.
D. source port number in the UDP header is 4789.

Correct Answer: D
QUESTION 14
VXLAN is a Network Virtualization over Layer 3 (NVO3) technology that uses MAC-in-UDP encapsulation. Which of the following are concepts in VXLAN?

A. VTEP
B. NVE
C. VNI
D. BD

Correct Answer: ABCD
QUESTION 15
In the figure, there are four switches on a VXLAN network 3 and Layer 3 gateways are deployed on Leaf1 and Leaf2 using EVPN. Which of the following statements is false?

A. Leaf1 can function a as both a Layer 2 VXLAN gateway and a Layer 3 VXLAN gateway, supporting flexible deployment.
B. If a route reflector (RR) is deployed on the network, Leaf1 and Leaf2 only need to establish BGP EVPN peer relationships with the RR.
C. Leaf1 needs to learn ARP entries of all servers.
D. After a BGP EVPN peer relationship is established between Leaf1 and Spine1, they can send EVPN routes to each other.

Correct Answer: C
QUESTION 16
Which of the following statements are true about centralized and distributed VXLAN gateways?

A. In centralized gateway mode, the Layer gateway is deployed on one device. All inter-subnet traffic is forwarded by the Layer 3 gateway, implementing centralized traffic management.
B. In a distributed gateway scenario, leaf nodes only need to learn ARP entries of servers connected to them. This solves the ARP entry bottleneck problem in a centralized gateway scenario and improves network scalability.
C. If a centralized Layer gateway is used, the gateway must generate ARP entries of tenants whose traffic it forwards.
D. When distributed VXLAN gateways are deployed on a network using the typical spine-leaf architecture, leaf nodes function as Layer 3 VXLAN gateways.

Correct Answer: ABCD
QUESTION 17
In VXLAN, a Layer 3 VNI is associated with a VPN instance for inter-subnet transmission of VXLAN packets.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 18
Which of the following statements are true about EVPN?

A. EVPN uses a mechanism similar to BGP/MPLS IP VPN. Based on BGP, EVPN defines a new NLRI for MAC address learning and advertisement between sites on a Layer 2 network.
B. Ethernet Virtual Private Network (EVPN) is a VPN technology used for Layer 2 network interconnection.
C. EVPN applies to VXLAN networks to transfer VTEP discovery and host MAC address learning from the data plane to the control plane.
D. VXLAN uses EVPN as the control plane to solve the traffic flooding problem on a DCN.

Correct Answer: ABCD
QUESTION 19
Which of the following statements are true about BGP EVPN configurations?

A. The l2vpn-family evpn command displays the BGP-EVPN address family view in a BGP process.
B. The evpn-overlay enable command configures EVPN as the VXLAN control plane.
C. The interface Eth-Trunki0.1 command configures a Layer sub-interface for a VXLAN service access point.
D. The display bgp routing table command displays BGP EVPN routing information.

Correct Answer: ABC
QUESTION 20
VXLAN uses MAC-in-                   encapsulation to encapsulate Ethernet packets. (Enter the acronym in uppercase letters.)
Correct Answer: UDP