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Home Huawei H12-891

Huawei H12-891 Exam Practice Questions (P. 5)

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Question #41
Huawei Open Programmability System (OPS) uses HTTP methods to access managed objects to manage network devices. To facilitate script compilation, Huawei OPS provides the Python script template. Which of the following methods of the OPSConnection class in the OPS script template are incorrect?
  1. A
  2. B
  3. C
  4. D

Correct Answer:
A

Question #42
Huawei Open Programmability System (OPS) provides openness and programmability capabilities for network devices and enables users to perform secondary development. To facilitate script compilation, Huawei OPS provides the Python script template. Which of the following statements about the Python script template are correct? (Choose three.)
  1. A
    The OPSConnection class is used to invoke RESTful APIs. This class defines methods for establishing HTTP connections. You do not need to modify the methods.
  2. B
    The initialization method of the OPSConnection class is def__init__(self, host, port=80). When the OPSConnection class is initialized in the main() function, the host parameter needs to be set to the IP address of the management interface of the network device to be managed.
  3. C
    Users need to search for the corresponding URI and the XML content of the HTTP packet body in the RESTful API Reference based on the managed object to be accessed, and modify the Python script template accordingly.
  4. D
    The OPSConnection class has four methods: create, delete, set, and get, which encapsulate the PUT, DELETE, POST and GET methods of HTTP.

Correct Answer:
ABC

Question #43
Which of the following are key technologies used to implement SRv6 Policies based on Huawei’s CloudWAN solution architecture?
  1. A
    BGP-LS
  2. B
    BGP IPv6 SR Policy
  3. C
    PCEP
  4. D
    NETCONF

Correct Answer:
B

Question #44
MPLS supports both static and dynamic LSP establishment. Which of the following protocols cannot dynamically establish LSPs in MPLS TE scenarios?
  1. A
    BGPB. RSVP-TE
  2. B
    OSPF
  3. C
    IS-IS

Correct Answer:
A

Question #45
As shown in the figure, PE1 and PE2 exchange private network route information with their respective CEs through OSPF, and the same domain ID is configured on PE1 and PE2. Which of the following LSA types may be transmitted to CE2 when PE2 imports BGP routes to the OSPF process?
  1. A
    Type 1 LSA
  2. B
    Type 3 LSA
  3. C
    Type 5 LSA
  4. D
    Type 7 LSA

Correct Answer:
C

Question #46
Which of the following statements regarding MPLS label encapsulation format are correct? (Choose three.)
  1. A
    The total length of one layer of MPLS label is 4 bytes.
  2. B
    The TTL field in an MPLS label has the similar meaning as that in an IP packet, and can prevent loops.
  3. C
    The S field in an MPLS label has 1 bit and is used to identify whether the label is the bottom-of-stack label. If the value is 1, the label is a penultimate-layer label.
  4. D
    For Ethernet and PPP packets, a label stack is located between the Layer 2 packet header and data. If a VLAN tag is available, the label stack is placed between Ethernet header and the VLAN tag.

Correct Answer:
ABC

Question #47
Which of the following topologies does the overlay network support in the Huawei SD-WAN Solution?
  1. A
    Hub-spoke
  2. B
    Full-mesh
  3. C
    Partial-mesh
  4. D
    Hierarchical

Correct Answer:
A

Question #48
In the Huawei CloudCampus Solution, which of the following deployment modes are supported by Huawei switches?
  1. A
    CLI
  2. B
    Web interface
  3. C
    Huawei registration center
  4. D
    DHCP Option 148

Correct Answer:
D

Question #49
Which of the following types of authorization information can be delivered by a RADIUS server after a client passes 802.1 X authentication? (Choose three.)
  1. A
    MAC address
  2. B
    ACL
  3. C
    VLAN ID
  4. D
    UCL group

Correct Answer:
BCD

Question #50
As shown in the figure, in a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, VTEP1 transmits a BGP EVPN Type 2 route to VTEP2. The EVPN RT value is 20:1. Which of the following items are incorrect? (Choose two.)
  1. A
    VTEP2 directly discards the route.
  2. B
    VTEP2 compares the RT carried in the route and finds that it is different from the IRT of the EVPN instance bound to BD 20. Therefore, VTEP2 discards the route.
  3. C
    VTEP2 compares the RT carried in the route with the IRT of the EVPN instance bound to BD 20. Because the RTs are different, VTEP2 does not add the MAC address entry carried in the route to the MAC address table of BD 20.
  4. D
    VTEP2 compares the RT carried in the route with the IRT bound to the IP VPN instance VTEP_VBDIF20. Based on this, VTEP2 learns the IP route carried in the route advertisement packet and adds the route to the IP routing table of the IP VPN instance.

Correct Answer:
AD

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