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| Section | Weight | Objectives |
|---|---|---|
| Network Reliability | 8% | - Redundancy and failover mechanisms |
| Routing and Traffic Control | 10% | - Policy-based routing - Traffic engineering basics |
| Switching Technologies | 7% | - VLAN and STP fundamentals |
| BGP | 17% | - BGP path selection - BGP policy and attributes |
| IPv6 | 3% | - IPv6 addressing and routing |
| Network Service and Management | 2% | - Network management basics |
| Network Security | 9% | - ACL and basic security mechanisms |
| IS-IS | 8% | - IS-IS protocol fundamentals |
| OSPF | 16% | - OSPF areas and LSDB - OSPF core concepts |
| Large-scale WLAN Architecture | 6% | - Enterprise WLAN deployment basics |
| Network Solution | 2% | - Integrated network design scenarios |
| Multicast | 9% | - IGMP and PIM concepts |
| Routing Fundamentals | 3% | - Network basics and routing principles |
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NEW QUESTION # 247
There are various types of VPNs, which can be applied to different layers. Which of the following network layers does SSL VPN belong to?
Answer: C
Explanation:
SSL VPN and Its Functionality:
* SSL VPN (Secure Sockets Layer Virtual Private Network) provides secure remote access to a network using SSL/TLS protocols.
* SSL VPN operates at the Application Layer of the OSI model. It enables secure communication for applications like web browsers, email clients, and file sharing.
* Unlike IPsec VPN, which operates at the Network Layer, SSL VPN focuses on application-specific encryption and authentication.
NEW QUESTION # 248
After which of the following parameters are modified does an IS-IS neighbor relationship need to re-established?
Answer: A
NEW QUESTION # 249
IGMPv2 uses the timeout mechanism for group members leaving a group. Group members can only leave a group silently. Before the timeout period expires, multicast traffic is still forwarded by the multicast router, and this is a defect.
Answer: B
Explanation:
This statement isfalsebecauseIGMPv2 improves upon IGMPv1 by introducing the Leave Group message.
InIGMPv1, members leave silently, and the router waits for the timeout.
InIGMPv2, a host sends aLeave Groupmessage, prompting the router to send aGroup-Specific Queryto determine if other members are still present. If no responses are received, the group is pruned before timeout.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"IGMPv2 allows group members to actively send Leave messages, reducing unnecessary forwarding delays.
This improves efficiency over IGMPv1."
(Chapter: Multicast Protocols - Section: IGMP Versions)
NEW QUESTION # 250
A network entity title consists of an area address and a system ID. It is a special NSAP (the SEL has a fixed value of 00) and is mainly used for route calculation.
Answer: A
Explanation:
Comprehensive and Detailed in-depth Step-by-Step Explanation:The Network Entity Title (NET) is a unique identifier assigned to an IS-IS router. It is derived from the Network Service Access Point (NSAP) address and consists of the following components:
* Area Address:
* Identifies the area in which the router resides.
* Multiple routers in the same IS-IS area must have the same area address.
* System ID:
* Uniquely identifies the router within the IS-IS area.
* The System ID is typically derived from the router's loopback IP address or another unique value.
* SEL (Selector Field):
* The SEL field is always set to 00 for IS-IS NETs.
The NET is used by IS-IS for route calculation and to identify the router within the IS-IS domain. Therefore, the statement is TRUE.
References:
* Huawei HCIA-Datacom Study Guide, Chapter on "IS-IS Addressing".
* RFC 1195 - Use of OSI IS-IS for Routing in TCP/IP and Dual Environments.
NEW QUESTION # 251
The security zones created by Huawei firewall by default are untrust, dmz, and local ().
Answer:
Explanation:
trust
NEW QUESTION # 252
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