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Huawei H12-891_V1.0-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Advanced Networking Technologies | - IPv6 deployment and transition - MPLS and VPN technologies |
| Routing and Switching | - BGP fundamentals and policy control - OSPF / IS-IS routing principles |
| Network Security | - Basic security mechanisms - Network attack prevention and isolation |
| Network Automation and Programmability | - SDN concepts - Network automation tools and APIs |
| IP Network Fundamentals | - TCP/IP and OSI model - Network architecture and protocols |
Huawei HCIE-Datacom V1.0 Sample Questions:
Question 1
In an intra-domain MPLSVPN network, when a packet enters the public network and is forwarded, it is encapsulated with two layers of MPLS tags, and the description of the two layers of tags in the following options is incorrect
A. The outer label is used to correctly send packets to the appropriate VPN in
B. on the PE device By default, the outer label is ejected before the packet is forwarded to the last hop device
C. The outer label of mpls VPN is assigned by the LDP protocol or statically, and the inner label is assigned by the MP-BGP neighbor of the peer
D. The outer label of MPLS VPN is called a private network label, and the inner label is called a public network label
Question 2
What type of prefix does a router running BGP advertise to its IBGP neighbor (assuming the router is not configured as a route reflector)? (radio).
A. The prefix is learned through an EBGP neighbor, or the prefix is learned from an from RR
B. Prefixes are learned through other BGP neighbors, or prefixes are learned locally through network or routing introduction
C. Prefixes are learned through other IBGP neighbors, or prefixes are learned from EBGP neighbors, or prefixes are learned through routing introduction
D. Prefixes are learned through EBGP neighbors, or prefixes are learned locally through network or routing introduction
E. A prefix that exists in the routing table
Question 3
When deploying the ISIS protocol in an IPv6 environment, the following statement is correct (single choice).
A. In broadcast networks, IPv4 and. The DIS priority for IPv6 can be set separately
B. By default, the DIS priority for broadcast network interfaces at Level-1 and Level-2 is 1
C. IS-IS is configured under the finger port is ISIS silent, this interface will not send ISIS packets, but will receive ISIS packets
D. In the same broadcast network. If each router supports both IPv4 and IPv6. The DIS for IPv4 and IPv6 must be the same device
Question 4
You want to set the DSCP value of VolP traffic in HW network devices to EF. According to the differentiated service model RFC, traffic token EF should be set to:
A. IP ToS is set to OXEF
B. IP Experimental ECN
C. DSCP is set to decimal 5
D. DSCP is set to decimal 36
E. Bitstream 101110
Question 5
In route-policy, what are the BGP attributes that can be used for the apply clause?
A. Day
B. MED
C. Local-Preference
D. AS-Path
Solutions:
| Question 1 Answer: A,D | Question 2 Answer: D | Question 3 Answer: D | Question 4 Answer: E | Question 5 Answer: B,C,D |








