Practice Free H12-891_V1.0-ENU Exam Online Questions
The OPS (Open Programmability System) function of Huawei network equipment provides open programmability of network equipment and empowers users with secondary development capabilities. Which of the following descriptions of the OPS function of Huawei network equipment are correct? (Multiple choice)
- A . Python scripts can also be run on the user’s local PC and call the RESTful API interface opened by the network device.
- B . With the help of OPS function, the function of automatic deployment of empty configuration equipment can be realized
- C . Users can manually run Python scripts through the command line
- D . Users can run Python scripts by configuring the maintenance assistant
Port Security (Port Security) enhances the security of the device by converting some MAC addresses into secure MAC addresses and preventing hosts other than secure MACs from communicating with the device through this interface.
Which of the following are safe MACs? (Multiple choice)
- A . Sticky MAC address
- B . Protected MAC address
- C . Secure static MAC address
- D . Secure dynamic MAC address
The Python Paramiko library implements the SSH protocol in the form of a script. In the Python Paramiko module, which of the following methods can establish an SSH connection? (Multiple choice)
- A . The connect method in the Channel class
- B . from_transport method in SFTP Client class
- C . connect method in SSH Client class
- D . connect method in Transport class
In dual-link hot backup, the AP will establish CAPWAP links with the primary AC and backup AC.
- A . True
- B . False
The enterprise wide area bearer network needs to provide different service quality guarantees for various services. At this time, Qos planning can be used to ensure that various services are forwarded reasonably on the bearer network.
Which of the following descriptions of Qos planning principles are correct? (Multiple choice)
- A . Consistency: Qos planning involves various behaviors such as business classification, marking, scheduling, speed limiting, etc. The entire network needs to be consistent.
- B . Scalability: The current Qos strategy needs to consider subsequent business expansion.
- C . Maintainability: Actual business changes rapidly, and Qos policy adjustments may need to be made frequently during daily maintenance. It needs to be easy to adjust and simple to maintain.
- D . Rationality: Allocate reasonable resources based on the importance of the business
IPv6 link-local addresses can be generated through stateless autoconfiguration.
- A . True
- B . False
Check tags When using EVPN to carry L2VPN, when forwarding unicast traffic, which of the following route types distributes unicast tags?
- A . Ethernet Segment Route
- B . Inclusive Multicast Route
- C . MAC/IP Advertisement Route
- D . Ethernet AD Route
Which of the following protocols is used for southbound management of Huawei iMaster NCE-WAN controller?
- A . NETCONF over SSH
- B . HTTP/2
- C . SNMP
- D . NEICONF over DTLS
In the scenario of dynamically establishing a VXLAN tunnel through BGP EVPN, which of the following descriptions of the principles of BGP EVPN are correct? (Multiple choice)
- A . Use MP_REACH_NLRI to carry the RD value
- B . Several BGP EVPN routes are newly defined by extending BGP
- C . Use MP_REACH_NLRI to carry RT value
- D . Use MP_REACH_NLRI to carry routing information
IPsec is not a separate protocol, but an open standard technical solution. Which of the following protocols does the IPsec protocol framework include? (Multiple choice)
- A . ESP
- B . PKI
- C . SSL
- D . AH