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Huawei H12-821_V1.0 Exam Syllabus Topics:

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:

Question 1

Which of the following statements regarding multicast MAC addresses are false?

A. The high 24 bits of the multicast MAC address are 0x01005E, the 25th bit is fixed to 1, and the lower
23 bits of the MAC address map to the lower 23 bits of the multicast IP address.
B. One multicast MAC address maps to 32 multicast IP addresses.
C. One multicast MAC address maps to only one multicast IP address.
D. A multicast MAC address identifies receivers of a multicast group on the data link layer.

Question 2

As shown in the figure, R1 imports the direct route 10.1.1.0/24 to OSPF. An engineer enables bidirectional route re-advertisement on R2 and R3.

After the network becomes stable , which of the following is the Pre (preference) value of the route
10.1.1.0/24 in the routing table of R3 ?

A. 10
B. 150
C. 15
D. 0

Question 3

Which of the following PIM protocol packets have unicast destination addresses.

A. Register Stop
B. Bootstrap
C. Assert
D. Graft

Question 4

An enterprise administrator views the following details about a BGP route during routine O & M:
yaml
CopyEdit
< HUAWEI > display bgp routing-table 192.168.1.1
BGP local router ID: 10.1.1.1
Local AS number: 100
Paths: 2 available, 0 best, 0 select
BGP routing table entry information of 192.168.1.1/32:
From: 10.1.1.2 (10.1.1.2)
Route Duration: 00h01m31s
Relay IP Nexthop: 0.0.0.0
Relay IP Out-Interface: --
Original nexthop: 172.16.1.2
AS-path: 200, origin incomplete, MED 0, localpref 100, pref-val 0, internal, pre 255, invalid for IP unreachable Not advertised to any peer yet Which of the following statements are true about the BGP route?

A. The route is preferentially selected because its Local_Pref has a higher priority.
B. The local BGP router ID is 10.1.1.1.
C. The original next hop of the route is 172.16.1.2.
D. The local AS number is 100.

Question 5

BFD control packets are encapsulated in UDP packets for transmission. What is the destination port number of multi-hop BFD control packets?

A. 2784
B. 3784
C. 5784
D. 4784

Solutions: