Practice Free H12-891_V1.0-ENU Exam Online Questions
SSH connections are usually established on TCP/IP connections, and in rare cases they can be established on UDP connections.
- A . True
- B . False
In the virtualized campus network scenario deployed through iMaster NCE-Campus, which of the following descriptions about configuring network service resources is correct?
- A . Network service resources include DHCP server, RADIUS server, Portal server, and other servers, etc.
- B . The Internet address in the network service resource must belong to the "Interconnect IP" in the "Underlay Automation Resource Pool"
- C . Configuring network service resources means configuring Fabric’s global resource pool.
- D . If the scenario is selected as "Directly connected switch", it means that the Border will add the interconnection port to the interconnection VLAN without a label.
After the RPT tree is established, what is the wrong description about SPT switching?
- A . All multicast traffic passes through the RP router, and the RP router may become a bottleneck for data forwarding.
- B . After the SPT switch is completed, multicast traffic still passes through the RPT tree.
- C . SPT has the shortest path and better forwarding performance
- D . The RPT tree may not be the optimal path for multicast traffic forwarding.
Telemetry is a technology that remotely collects data from physical or virtual devices at high speed.
For the model using gRPC push, which of the following is not a component of the data model layer?
- A . Notification message layer
- B . Telemetry layer
- C . Business data layer
- D . RPC layer
MAC address learning of static VXLAN tunnels relies on packet interaction between hosts (such as ARP packet interaction).
- A . True
- B . False
As shown in the picture, which of the following descriptions is wrong?
The message information of the VLAN configuration delivered by the NETCONF protocol is as follows:
- A . The purpose of this NETCONF message is to create VLAN 10 on the device
- B . The label indicates the configuration library used by the NETCONF message. In this example, it is the startup configuration library.
- C . Indicates that the purpose of this message is to modify, create or delete configuration data
- D . <protocol Vlan xc: operation="merge"> means modifying the existing or non-existing target data in the configuration database. If the target data does not exist, create it. If the target data exists, modify it.
Unified monitoring and performance management of network equipment are important functions of the operation and maintenance platform. Which of the following protocols or technologies does the operation and maintenance platform use to obtain equipment monitoring data? (Multiple choice)
- A . SNMP
- B . Telemetry
- C . NetStream
- D . Syslog
Which of the following descriptions of LDP free label retention methods are correct? (Multiple choice)
- A . Save memory and label space
- B . Requires more memory and label space
- C . Keep all labels distributed by neighbors
- D . Only keep labels from next-hop neighbors and discard all labels from non-next-hop neighbors.
In Huawei SD-WAN solution, which of the following networks does the management channel access the iMaster NCE WAN controller?
- A . Campus network
- B . Underlay WAN network
- C . LAN side network
- D . Overlay network
The IETF took advantage of the strong scalability of OSPF to expand the functions of OSPF so that it can support IPv6 networks. The protocol with expanded functions is called OSPFv3. OSPFv3 and OSPFv2 are compatible.
- A . True
- B . False