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Huawei H12-821_V1.0 Exam Syllabus Topics:

Section	Objectives
Network Reliability	- Reliability Technologies 1. Redundancy Design 2. BFD 3. VRRP
OSPF	- OSPF Fundamentals 1. OSPF Neighbor Relationship 2. OSPF Area Design 3. LSA and SPF Calculation
Network Solutions	- Enterprise Network Solutions 1. Campus Network 2. Datacom Architecture 3. WAN Solution
Multicast	- IP Multicast Technologies 1. Multicast Forwarding 2. IGMP 3. PIM
Network Security	- Security Technologies 1. Attack Prevention 2. AAA 3. ACL
Routing Basics	- IP Routing Fundamentals 1. Static Routing 2. Route Selection 3. Routing Table Principles
IPv6	- IPv6 Fundamentals 1. IPv4 to IPv6 Transition 2. IPv6 Addressing 3. IPv6 Routing
Network Service and Management	- O&M Technologies 1. Network Monitoring 2. Telemetry 3. SNMP
BGP	- BGP Technologies 1. IBGP and EBGP 2. BGP Route Advertisement 3. BGP Path Selection
IS-IS	- IS-IS Fundamentals 1. Level-1 and Level-2 Routing 2. IS-IS Neighbor Establishment 3. LSP and SPF Mechanism
Ethernet Switching Technology	- Switching Fundamentals 1. Link Aggregation 2. STP/RSTP/MSTP 3. VLAN
WLAN	- Wireless Networking 1. Wireless Security 2. WLAN Deployment 3. WLAN Architecture
Routing and Traffic Control	- Traffic Management 1. Traffic Optimization 2. Policy-based Routing 3. Route Filtering

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q314-Q319):

NEW QUESTION # 314
In BGP, the Origin attribute is used to identify the origin of a route. Which of the following statements are true about the Origin attribute?

A. If multiple routes carry the same destination address but different Origin attributes and all other route selection conditions are the same, BGP selects the optimal route according to the Origin attribute in the following order: IGP > EGP > Incomplete.
B. If a route is imported to BGP by the originator using the network command, the Origin attribute of the BGP route is displayed as i in the BGP routing table.
C. If a route is learned through EGP, the Origin attribute of this BGP route is displayed as ? in the BGP routing table.
D. This attribute is a well-known mandatory attribute.

Answer: A,B,D

Explanation:
Definition of the Origin Attribute:
The Origin attribute is a well-known mandatory attribute used to indicate the source of a route.
It has three possible values:
i (IGP): The route was injected into BGP using the network command.
e (EGP): The route was learned from an EGP protocol (not commonly used now).
? (Incomplete): The route was redistributed into BGP from another routing protocol.

NEW QUESTION # 315
As shown in the figure, the stateful inspection firewall will forward the second TCP three-way handshake message in the figure.

A. FALSE
B. TRUE

Answer: A

NEW QUESTION # 316
By default, a router interface sends PIM Hello messages at an interval of __________ seconds.

Answer:

Explanation:
30 seconds
Explanation:
By default, a router interface sends PIM (Protocol Independent Multicast) Hello messages every 30 seconds to maintain neighbor relationships. This interval can be adjusted using configuration commands .

NEW QUESTION # 317
Which of the following is the reason why two routers that are directly connected can establish neighbor relationships but cannot establish OSPF adjacency relationships?

A. The ospf dr-priority of the two directly connected ports is set to 0.
B. Both routers use the same Router ID
C. The two routers use different Process IDs
D. Different network types are set on the two interfaces directly connected to the two routers.

Answer: A

NEW QUESTION # 318
When OSPF is in the ExStart state, routers and neighbors send DD messages containing link status information digests to each other.

A. FALSE
B. TRUE

Answer: A

NEW QUESTION # 319
......

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