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Huawei H12-821_V1.0 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Multicast | - IP Multicast Technologies
|
| Topic 2: Routing Basics | - IP Routing Fundamentals
|
| Topic 3: BGP | - BGP Technologies
|
| Topic 4: Ethernet Switching Technology | - Switching Fundamentals
|
| Topic 5: Network Service and Management | - O&M Technologies
|
| Topic 6: OSPF | - OSPF Fundamentals
|
| Topic 7: Routing and Traffic Control | - Traffic Management
|
| Topic 8: IS-IS | - IS-IS Fundamentals
|
| Topic 9: Network Solutions | - Enterprise Network Solutions
|
| Topic 10: Network Security | - Security Technologies
|
| Topic 11: WLAN | - Wireless Networking
|
| Topic 12: Network Reliability | - Reliability Technologies
|
| Topic 13: IPv6 | - IPv6 Fundamentals
|
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
The following figure shows the BGP state switching mechanism. Drag the following BGP states to the corresponding sequence numbers.
Correct Answer:
Explanation:
1 - Idle
2 - Connect
3 - OpenSent
4 - OpenConfirm
5 - Established
6 - Active
The BGP finite state machine defines how a BGP speaker transitions through various states when establishing and maintaining a BGP session. Below is the role of each state:
Idle (1) - BGP is waiting to start a connection. Initial state of the BGP process.
Connect (2) - BGP initiates a TCP connection to the peer.
OpenSent (3) - TCP connection is established; BGP sends an OPEN message and waits for one from the peer.
OpenConfirm (4) - BGP has received a valid OPEN message and is now expecting a KEEPALIVE.
Established (5) - BGP session is fully established; UPDATE messages can now be exchanged.
Active (6) - If the TCP connection fails in Connect state, BGP transitions to Active and will retry connection.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"BGP goes through the following states in order: Idle # Connect # Active # OpenSent # OpenConfirm # Established. The transition depends on the success or failure of TCP connection setup and BGP message exchanges." (Chapter: BGP Principles - Section: BGP State Machine)
The AS_Path attribute records the numbers of all ASs that a route passes through from the local end to the destination in the vector order. If a BGP speaker advertises a route to an IBGP peer, it creates an empty AS_Path in an Open message. This prevents routing loops between ASs.
- A. TRUE
- B. FALSE
Correct Answer: A 🗳️
In BGP, the origin attribute of the routes imported using the import-route command is incomplete.
- A. TRUE
- B. FALSE
Correct Answer: A 🗳️
Explanation: Only visible for TestkingPDF members. You can sign-up / login (it's free).
Route attributes are specific descriptions of routes. BGP route attributes can be classified into four types.
Which of the following are well-known discretionary attributes?
- A. Local-Preference
- B. Atomic_Aggregate
- C. Community
- D. MED
Correct Answer: A,B 🗳️
Explanation: Only visible for TestkingPDF members. You can sign-up / login (it's free).
Which of the following attacks is not the network layer attack?
- A. ICMP attack
- B. Smurf attack
- C. IP spoofing attack
- D. ARP spoofing attack
Correct Answer: D 🗳️
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