Important Huawei H35-210_V2.5 Exam Questions

Answer: C

Explanation:

The Ethernet II frame is the most commonly used Ethernet frame format. It consists of several fields, and its structure is well-defined in networking standards.

Structure of the Ethernet II Header :

Destination MAC Address (6 bytes) : Specifies the MAC address of the intended recipient.

Source MAC Address (6 bytes) : Specifies the MAC address of the sender.

EtherType (2 bytes) : Indicates the protocol encapsulated in the payload (e.g., IPv4, ARP).

Total Size :

The Ethernet II header without a VLAN tag is 14 bytes in size.

If a VLAN tag is added (using IEEE 802.1Q), the header size increases to 18 bytes due to the additional 4-byte VLAN tag.

Why Not Other Options?

32 bytes : This is incorrect because the Ethernet II header is much smaller.

22 bytes : This is incorrect because the header size is fixed at 14 bytes (without VLAN tagging).

18 bytes : This would only apply if VLAN tagging were included, which is not specified in the question.

Thus, the correct answer is 14 bytes .

HCIA Huawei ACCESS Official Documentation , Chapter: Ethernet Frame Structure.

IEEE 802.3 Ethernet Standards .

Answer: D

Answer: C

Answer: A, B, C

Explanation:

Firewall Settings (Option A) :

Incorrect firewall settings on the PC can block outbound HTTP/HTTPS traffic, preventing access to web pages.

Browser Settings (Option B) :

Misconfigured browser settings (e.g., proxy settings in Internet Explorer) can prevent the browser from connecting to websites.

Upper-Layer Device Configuration (Option C) :

Incorrect configurations on upper-layer devices (e.g., NAT, routing, or DNS settings) can prevent proper communication between the user and external networks.

Website Server Fault (Option D) :

If the issue affects all web pages , it is unlikely to be caused by a single website server being faulty. This option is irrelevant in this scenario.

Why A, B, C?

These options directly address potential issues that could prevent access to all web pages after successful authentication.

Thus, the correct answers are A, B, C .

HCIA Huawei ACCESS Official Documentation , Chapter: Broadband Troubleshooting.

Broadband Access Network Fault Analysis by Huawei.

Answer: B, C

Explanation:

Optical Splitter Overview :

Optical splitters are passive devices used in PON (Passive Optical Network) systems to divide the optical signal from the OLT into multiple paths for ONUs.

Standard Split Ratios :

Common split ratios include:

1:4 : Divides the signal into 4 paths.

1:8 : Divides the signal into 8 paths.

1:16 : Divides the signal into 16 paths.

1:32 : Divides the signal into 32 paths.

1:64 : Divides the signal into 64 paths.

Non-standard split ratios like 1:14 or 1:18 are not supported because they do not align with the design principles of PON systems.

Why B, C?

1:14 and 1:18 are not standard split ratios and are not used in PON systems.

Thus, the correct answers are B, C .

HCIA Huawei ACCESS Official Documentation , Chapter: Optical Splitters.

ITU-T G.984.x Standards for GPON .