Practice Free H12-891_V1.0-ENU Exam Online Questions
As shown in the figure is a typical network of "two places and three centers". Which device in the figure is responsible for branch offices accessing the wide area bearer network?
- A . WAN-P
- B . BR-CE
- C . BR-PE
- D . DC-PE
In the firewall dual-machine hot backup scenario, the location, type and number of the service boards and interface cards of the active and standby devices must be the same. Otherwise, the active device will back up past information and be incompatible with the physical configuration of the standby device, causing the active device to fail. A problem occurs after the device is switched.
- A . True
- B . False
The engineer wants to collect the Telemetry sampling data of the device through gRPC communication, and defines the serve function in the Python script, as detailed below. Which of the following descriptions is wrong?
- A . This function defines the opening of the gRPC listening service
- B . Server is a gRPC server object, allowing a maximum of 10 threads
- C . This code contains exception catching and infinite loop monitoring functions
- D . The IP address of the device is 192.168.56.1, and the gRPC communication port number is 20000.
The development of 5G and cloud services drives the implementation of business-defined network architecture, that is, the application puts forward requirements (delay, bandwidth, packet loss rate, etc.), the controller collects network information, and then calculates and displays the path according to business needs to achieve business-driven network.
In order to implement a business-driven network, which of the following information does the controller need to collect? (Multiple choice)
- A . Network topology
- B . Network element IP address
- C . Bandwidth Utilization
- D . Delay
The SID of a certain SRv6 node has functions similar to Node Segment in SR-MPLS. Which of the following instructions does this SID correspond to?
- A . End.T
- B . End
- C . End. DT4
- D . End.X
The LSA header of the OSPP protocol contains multiple fields, among which the link state type (Link State Type), link state ID (Link State ID), and advertising router (Adv Router) triples uniquely identify a LSA.
- A . True
- B . False
Which of the following types of LSAs can carry tag information for external routes?
- A . LSA3
- B . LSA2
- C . LSA4
- D . LSA5
Compared with the OSPFv2 message header, which of the following is an added field in the OSPFv3 message header?
- A . Instance ID
- B . Link ID
- C . IPv6 Auth Type
- D . IPv6 Router ID
MPLS has the concept of forwarding equivalence class FEC. Which of the following descriptions about FEC are wrong? (Multiple choice)
- A . MPLS groups packets with the same forwarding processing method into one category, called FEC
- B . A forwarding equivalence class FEC assigns unique label values to all routers.
- C . Packets with the same FEC will be processed differently in the MPLS network
- D . The division of FEC is very flexible and can be any combination based on source address, destination address, source port, destination port, protocol type or VPN, etc.
Under the distributed gateway, VNI is divided into L2VNI and L3VNI. L2VNI is an ordinary VNI, which is mapped to the broadcast domain BD in a 1:1 manner to realize the forwarding of VXLAN packets within the same subnet: L3VNI is associated with a VPN instance and is used for forwarding VXLAN packets across subnets. () single choice
- A . True
- B . False