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| Section | Objectives |
|---|---|
| Topic 1: Network Security Basics | - Access control lists (ACL) - Basic network security concepts |
| Topic 2: WLAN Basics | - Wireless networking fundamentals |
| Topic 3: Routing Technologies | - Static routing - Dynamic routing fundamentals (OSPF basics) |
| Topic 4: Network Fundamentals | - OSI and TCP/IP models - Basic network topologies and devices |
| Topic 5: Network Management and Troubleshooting | - Device management concepts - Basic troubleshooting tools and methods |
| Topic 6: IP Addressing and Subnetting | - IPv6 fundamentals - IPv4 addressing and subnet masks |
| Topic 7: Switching Technologies | - STP/RSTP concepts - VLAN configuration and trunking |
| Topic 8: IP Services | - NAT basics - DHCP and DNS concepts |
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NEW QUESTION # 78
The MAC address table of SW1 is shown in the figure. If SW1 receives a data frame with the destination MAC address 0050-5600-0003 from PC1, through which of the following interfaces does SW1 send the data frame?
Answer: A,B,D
Explanation:
The MAC address table in the exhibit contains learned entries for 0050-5600-0001 on GE1/0/1 and 0050-
5600-0002 on GE1/0/2, but there is no entry for destination MAC 0050-5600-0003. A frame arriving from PC1 on GE1/0/1 with an unknown unicast destination is therefore flooded within the VLAN. Huawei Ethernet switching behavior sends the unknown unicast frame through all other eligible Layer 2 interfaces in that VLAN, while never sending it back through the ingress interface. In the shown topology, the remaining interfaces are GE1/0/2, GE1/0/3, and GE1/0/4. Consequently, the frame is sent through options A, D, and B respectively. GE1/0/1, option C, is excluded because it is the ingress interface from which SW1 received the frame. If SW1 later learns 0050-5600-0003 on a specific port, subsequent unicast frames can be forwarded only through that learned port. For the empty destination entry shown, the verified answer is A, B, and D.
NEW QUESTION # 79
An IPv6 address is 128 bits long and typically represented in hexadecimal notation, for example,
2001:0001:0DB8:2345:CD30:1230:4567:89AB:CDEF.
Answer: A
Explanation:
An IPv6 address is 128 bits in length and is represented in hexadecimal format, typically written as eight groups of four hexadecimal digits separated by colons. The example given follows the correct IPv6 representation format, so the statement is correct.
NEW QUESTION # 80
RSTP uses the proposal/agreement mechanism to shorten the time that an upstream port waits before transitioning to the Forwarding state, but no temporary loop occurs. Why?
Answer: A
Explanation:
RSTP (Rapid Spanning Tree Protocol) employs a synchronization mechanism with the proposal/agreement handshakes to prevent loops during topology changes. By synchronizing states between switches, RSTP avoids temporary loops while quickly transitioning ports to the forwarding state.
NEW QUESTION # 81
When a Huawei network device functions as a Telnet server, which of the following are possible causes of a client falling to log in to the Telnet server? (Choose all that apply.)
Answer: A,B,D
Explanation:
A Telnet login failure can occur due to multiple reasons related to reachability, service configuration, or device setup. If the network between the client and the server is unreachable, the TCP-based Telnet session cannot be established. If the user interface (VTY lines) is not configured to allow Telnet access, login attempts will be rejected. Similarly, if the Telnet server function is not enabled on the device, remote Telnet connections cannot be established. The source interface configuration is not required for basic Telnet server functionality, so it is not a common cause of login failure.
NEW QUESTION # 82
An enterprise ' s network switch has security vulnerabilities because its software version is outdated. The administrator wants to upload a patch file through FTP to fix the vulnerabilities. Which of the following files is a patch file that can be uploaded by the administrator?
Answer: D
Explanation:
Huawei network devices use file extensions to distinguish software images, patches, configuration files, and other packages. A patch package uses the .pat extension, so test.pat is the only option that represents a Huawei patch file. A .cc file is normally associated with a VRP system software package rather than a patch.
Configuration data is stored in supported configuration formats and is not identified by the .pat extension. An administrator can transfer the patch file to the device by FTP, SFTP, or another supported file-transfer method and then activate or load it according to the platform ' s patch procedure. The purpose of a patch is to correct defects or vulnerabilities without necessarily replacing the complete system software package. Because the question asks specifically for the file that can be uploaded as a patch to remediate a security vulnerability, the filename ending in .pat is the technically correct selection. The source answer B is therefore consistent with Huawei Datacom file-management conventions.
NEW QUESTION # 83
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