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| Section | Weight | Objectives |
|---|---|---|
| Network Security and Services | 15% | - Network security overview - FTP / TFTP and file management - AAA (Authentication, Authorization, Accounting) - IPsec VPN fundamentals - Network management protocols (SNMP, NTP) - Firewall basics and security zones |
| Ethernet Technology Basics | 20% | - STP / RSTP / MSTP spanning tree protocols - VLAN principles and configuration - VLAN intercommunication (sub-interface, VLANIF) - MAC address table and forwarding - Link aggregation (LACP) - Ethernet overview and frame structure |
| IP Technology Basics | 25% | - IPv4 addressing and subnetting - NAT (Network Address Translation) - DHCP principles and configuration - ACL (Access Control List) - IPv6 basics and address types - ICMP protocol - OSPF fundamentals (single-area) - Static routing and default routing |
| WLAN Technology Basics | 10% | - WLAN RF fundamentals (channels, bands) - WLAN networking architecture (AC + AP) - WLAN basic configuration and troubleshooting - WLAN overview and 802.11 standards |
| Typical Campus Networking Solution | 5% | - Campus network architecture design - Typical campus network deployment scenarios - Hierarchical network model (core, aggregation, access) - Network reliability and redundancy design |
| Data Center Network Basics | 5% | - Cloud computing and virtualization basics - Data center network architecture overview - Data center fabric concepts (VXLAN, SDN) |
| Network O&M and Troubleshooting | 10% | - Network maintenance tools (ping, tracert, display commands) - Troubleshooting methodology and process - Network documentation and baselining - Common network fault diagnosis |
| Data Communication Network Basics | 10% | - Basic principles and operations of VRP (Versatile Routing Platform) - TCP/UDP principles - Basic network concepts, IP network architecture, and standardization organizations - Data forwarding process - OSI and TCP/IP protocol models and functions of each layer - ARP principles - Basic concepts and life cycle of campus network |
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NEW QUESTION # 52
If PC1 obtains an IPv6 address through SLAAC, which of the following is the network prefix length of the address that PC1 receives?
Answer: C
Explanation:
In SLAAC (Stateless Address Autoconfiguration), IPv6 hosts always use a 64-bit interface identifier with a /64 network prefix. The router advertisement provides a /64 prefix, and the host generates the remaining 64 bits for its interface ID.
NEW QUESTION # 53
The figure below shows the partial topology of a campus network and the corresponding data plan. The interconnected physical interfaces only allow traffic from the interconnection VLAN, and the corresponding VLANIF interfaces have been created. Across the entire campus network, OSPF is deployed to implement Layer 3 connectivity, and STP is enabled. Given this, which of the following statements are true?
Answer: B,C
Explanation:
The topology contains three Layer 3 interconnection VLANs: VLAN 12 between Core1 and ACC1, VLAN
13 between Core1 and ACC2, and VLAN 23 between ACC1 and ACC2. OSPF is enabled across the campus, while STP still controls Layer 2 forwarding on the VLAN links. If ACC2 GE1/0/3 is an alternate port, STP blocks service forwarding on the ACC1-ACC2 path. As a result, OSPF Hello packets cannot be exchanged across that blocked Layer 2 path and ACC1 and ACC2 cannot establish an OSPF neighbor relationship on VLAN 23, so C is true. Core1 still has routes for all three interconnection networks: VLAN 12 and VLAN 13 are directly connected, and information for VLAN 23 can be learned through OSPF from the access devices, making B true. Statement A is incorrect because ACC1 already has VLANIF 23 as a directly connected network rather than needing to learn that same connected segment through OSPF. Statement D is also false:
STP can still be relevant on Layer 2 VLAN links even in a campus using Layer 3 routing.
NEW QUESTION # 54
When Telnet or the web system is used to manage a device, which of the following mechanisms can be deployed to allow only fixed user IP addresses to log in to the device?
Answer: A
Explanation:
An Access Control List (ACL) can filter packets based on specified matching conditions, including source and destination IP addresses.
Huawei ' s HCIA-Datacom training material explains that ACLs provide traffic classification and access- control capabilities.
To restrict remote management access, an administrator can configure ACL rules that permit connections originating from authorized management IP addresses and deny connections from other sources.
The ACL must be applied to the appropriate management service or user interface for the restrictions to take effect.
Option A is incorrect because telemetry is primarily used for collecting and reporting operational data.
Option C is incorrect because SNMP is designed for network monitoring and management rather than implementing the specified login-source filtering mechanism.
Option D provides authentication, authorization, and accounting, but it is not the direct mechanism requested for filtering specific source IP addresses.
Therefore, option B is correct.
NEW QUESTION # 55
When planning IPv4 addresses for a campus network, which of the following methods can you use to assign an IP address to the interface connecting the campus egress device to the WAN?
(Choose all that apply.)
Answer: A,B,D
Explanation:
For IPv4 WAN-facing interfaces in campus networks, valid address assignment methods include static configuration, DHCP-based dynamic allocation, and PPPoE for access authentication and address assignment in broadband scenarios. These are all standard IPv4 mechanisms for obtaining or configuring IP addresses on WAN interfaces.
SLAAC is an IPv6 stateless auto-configuration mechanism and is not used for IPv4 address assignment, so it is not applicable in this context.
NEW QUESTION # 56
An administrator attempts to add the following rule to ACL 2001 on R1:
[R1] acl 2001
[R1-acl4-basic-2001] rule deny tcp destination-port eq telnet source 192.168.1.3 0 destination 192.168.2.0
0.0.0.255
In this case, the rule cannot be configured successfully.
Answer: A
Explanation:
ACL 2001 is a basic IPv4 ACL because Huawei numbered basic ACLs use the range 2000 to 2999. A basic ACL can match relatively simple conditions such as source IP address and an effective time range, but it does not support matching the IP protocol, destination IP address, or TCP/UDP source and destination port numbers. The attempted rule includes tcp, destination-port eq telnet, and a destination network, all of which require an advanced ACL. Huawei advanced ACLs use the 3000 to 3999 range and can match protocol type, source and destination addresses, and Layer 4 port values. Therefore, even after correcting the obvious command typo from ad 2001 to acl 2001, the rule syntax is still incompatible with a basic ACL 2001 and cannot be successfully configured in that ACL view. To implement the intended policy, the administrator should create an advanced ACL and express the TCP Telnet and destination conditions there. Consequently, the statement that the rule cannot be configured successfully is TRUE, option A.
NEW QUESTION # 57
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