Practice Free H12-891_V1.0-ENU Exam Online Questions
Which of the following aspects are mainly considered in cutover risk assessment? (Multiple choice)
- A . Losses caused by risks
- B . Location of key risk points
- C . Scope of risk impact
- D . Time of risk impact
The network administrator wants to use the IP Prefix List to match specific routing entries. Which of the following routing entries will be matched by the IP Prefix List in the figure? (Multiple choice)
- A . 10.0.1.0/24
- B . 10.0.0.1/30
- C . 10.0.2.0/24
- D . 10.0.0.0/24
If public key authentication is used during the SSH user authentication phase, the public key needs to be passed to the server in advance.
- A . True
- B . False
Which of the following descriptions about AH (Authentication Header, Packet Authentication Header Protocol) is wrong?
- A . AH provides anti-packet replay function
- B . AH provides data source verification
- C . AH provides message encryption function
- D . AH provides data integrity verification
C
IP v6 on a router SR-Policy routing information. Which of the following does [10] mean?
The engineer wanted to log in to Huawei equipment remotely. When writing the SSH Python script, he used the Paramiko library to write the following code: cli.ssh.invoke_shell() cli.send(‘screen-length 0 temporaryn’) where screen-length 0. Which of the following is the function of temporary?
- A . Cancel automatic line wrapping
- B . Cancel split-screen display
- C . Perform split-screen display
- D . Perform automatic line wrapping
B. As a new forwarding technology, IER uses the basic IGP routing protocol and unicast routing forwarding mechanism, so that there is no need to run IGMP between multicast recipients and multicast routers.
- A . True
- B . False
Which of the following descriptions about GRE tunnels is wrong?
- A . GRE can encapsulate IPv4 unicast packets
- B . The GRE implementation mechanism is simple and puts less burden on the equipment at both ends of the tunnel.
- C . GRE can encapsulate IPv6 unicast packets
- D . GRE can encapsulate IPv6 broadcast messages
As shown in the figure, R1, R2, R4, and R4 are in the same MPLS domain, and LDP is used to distribute MPLS labels between devices. R4 is the egress LSR of the FEC 4.4.4.0/24. If you want to realize that when R1 accesses 4.4.4.0/24, R4 does not need to query the label table but can understand the forwarding priority of the data, then R3’s outgoing label for the FEC is ()
Network information collection is the prerequisite for network optimization, including network topology and interface bandwidth collection, link delay collection, and traffic statistics collection. Which of the following technologies cannot be used for traffic statistics collection?
- A . PCEP
- B . SNMP
- C . Net Stream
- D . Telemetry
The OPS (Open Programmability System) function of Huawei network equipment provides open programmability capabilities of network equipment. To facilitate users to write scripts, Huawei provides a Python script template for the OPS function, and the OPS Connection class is created in the script template. Among them, the member function for creating device resource operations is def post (self, uri, req_data).
- A . True
- B . False