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| Section | Objectives |
|---|---|
| Topic 1: IPv6 | - IPv6 Fundamentals
|
| Topic 2: Network Service and Management | - O&M Technologies
|
| Topic 3: IS-IS | - IS-IS Fundamentals
|
| Topic 4: Routing Basics | - IP Routing Fundamentals
|
| Topic 5: WLAN | - Wireless Networking
|
| Topic 6: OSPF | - OSPF Fundamentals
|
| Topic 7: Routing and Traffic Control | - Traffic Management
|
| Topic 8: Network Security | - Security Technologies
|
| Topic 9: Multicast | - IP Multicast Technologies
|
| Topic 10: Network Reliability | - Reliability Technologies
|
| Topic 11: BGP | - BGP Technologies
|
| Topic 12: Network Solutions | - Enterprise Network Solutions
|
| Topic 13: Ethernet Switching Technology | - Switching Fundamentals
|
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NEW QUESTION # 48
After the administrator of an enterprise deploys a DHCP server, employees complain that their clients cannot obtain IP addresses from the DHCP server. Which of the following may cause this problem?
Answer: A,B
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* DHCP Configuration Issues:
* Option C: The DHCP function is disabled by default on Huawei devices. If the administrator forgets to enable it, clients cannot receive IP addresses.
* Option D: DHCP uses broadcast messages, which do not traverse routers. If the clients and DHCP server are on different subnets, a DHCP relay agent must be configured.
* Other Options:
* Option A: Multiple DHCP servers can coexist as long as their IP address pools do not overlap.
This is unlikely to cause the problem.
* Option B: STP does not affect DHCP operations unless it delays port activation, which is uncommon in this scenario.
References:
* HCIA-Datacom Study Guide, Chapter: DHCP Configuration and Troubleshooting
* Huawei DHCP Relay Agent Configuration
NEW QUESTION # 49
On an IS-IS network, each device needs to be configured with a network entity title (NET), which consists of three parts, each containing different fields. Which of the following fields are contained in the Area Address part?
Answer: A,D
Explanation:
Comprehensive and Detailed In-Depth Explanation:
* A NET (Network Entity Title) consists of three parts:
* Area Address # Identifies the IS-IS area.
* System ID # Uniquely identifies the router.
* SEL (NSEL - N-selector) # Always 0 in IS-IS.
* The Area Address part contains:
* AFI (Authority and Format Identifier) # Identifies the address type.
* IDI (Initial Domain Identifier) # Identifies the routing domain.
* System ID is NOT part of the Area Address, so the correct answers are B (AFI) and C (IDI).
# Reference: Huawei HCIA-Datacom Study Guide, IS-IS Addressing and NET Structure.
NEW QUESTION # 50
Four routers run IS-IS and have established adjacencies. The area IDs and router levels are marked in the following figure. R1 and R2 are connected through a PPP link, and R3 is the DIS. Which of the following statements are true?
Answer: A,D
Explanation:
R3, as the DIS in the Level-2 domain, periodically sends Complete Sequence Number Protocol Data Units (CSNPs) to ensure LSDB synchronization among Level-2 routers.
R1 and R2 are in a Level-1 domain, and IS-IS requires the receiving router (R2) to acknowledge an LSP from R1 by sending a Partial Sequence Number Protocol Data Unit (PSNP).
IS-IS LSPs in a broadcast network are sent using multicast, not unicast, making option C incorrect.
For Level-2 LSPs, acknowledgments are not provided using PSNP by R3; CSNPs are sufficient for synchronization .
NEW QUESTION # 51
Which of the following descriptions about configuring the dual-machine hot backup function in the WLAN network is wrong?
Answer: B
NEW QUESTION # 52
Two routers R1 and R2 are directly connected. If you want to establish an OSPF adjacency relationship, R1 uses MD5 port authentication, and R2 uses MD5 area authentication. If the passwords are the same, the two devices can establish an OSPF adjacency relationship.
Answer: A
NEW QUESTION # 53
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