Huawei HCIA-Access V2.5 H35-210_V2.5 Exam Questions

Page: 1 / 14
Total 114 questions
Question 1

Which of the following protocols works at the transport layer and is connectionless-oriented?



Answer : C

The transport layer in the OSI model is responsible for end-to-end communication and includes two main protocols: TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) .

IP (Internet Protocol) : Works at the network layer and is responsible for routing packets across networks.

ARP (Address Resolution Protocol) : Works at the network layer and maps IP addresses to MAC addresses.

TCP : A connection-oriented protocol at the transport layer that ensures reliable communication through acknowledgments and retransmissions.

UDP : A connectionless-oriented protocol at the transport layer that provides faster but less reliable communication compared to TCP.

Since the question specifies a connectionless-oriented protocol at the transport layer, the correct answer is UDP .


HCIA Huawei ACCESS Official Documentation , Chapter: Transport Layer Protocols.

TCP/IP Protocol Suite Overview by Huawei.

Question 2

When the IP address lease of a DHCP client reaches a specified point, the DHCP client renews the IP address lease. The number of times for sending renewal packets decreases as the number of times for IP address renewal increases.



Answer : B


Question 3

When adding an ONU to the OLT, if Control flag is deactive, run theont activatecommand in GPON port mode to activate the ONU.



Answer : A


Question 4

In Huawei access network products, which of the following VLANs contain two VLAN tags? (Select All that Apply)



Answer : A, D

Stacking VLAN (QinQ):Adds an outer VLAN tag (double tagging).


Question 5

When other SNMP parameters are correctly configured, how to configure the Trap source address of a device to ensure that the NMS can receive device alarms normally?



Answer : C

SNMP Trap Source Address :

The trap source address is the IP address used by the device to send SNMP traps to the NMS (Network Management System).

Configuration Options :

Option A : Setting the trap source address to 127.0.0.1 (localhost) is incorrect because it is not routable and cannot be used for communication with the NMS.

Option B : Using the loopback address is possible but not recommended unless the NMS is explicitly configured to accept traps from the loopback address.

Option C : Setting the trap source address to the same address used by the NMS to add the device ensures proper communication and alignment between the device and NMS.

Option D : Incorrect because not all options are valid.

Why C?

Configuring the trap source address to match the address used by the NMS ensures that the NMS can correctly identify and process traps from the device.

Thus, the correct answer is C .


HCIA Huawei ACCESS Official Documentation , Chapter: SNMP Configuration.

RFC 3411: SNMP Framework .

Question 6

The Ethernet technology is a widely used technology. According to different transmission rates, the Ethernet technology is classified into 10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s. The 10 Mbit/s and 100 Mbit/s Ethernet transmission media are twisted pairs, but the 1000 Mbit/s Ethernet is too fast and requires optical fibers as the transmission media.



Answer : B


Question 7

In the access technology of the access network, which of the following access modes can provide the maximum access bandwidth?



Answer : B

GPON (Gigabit Passive Optical Network) is a fiber-based access technology that supports downstream bandwidth up to 2.5 Gbps and upstream up to 1.25 Gbps, far exceeding the bandwidth capabilities of DSL technologies. ADSL (up to 8 Mbps), ADSL2+ (up to 24 Mbps), and VDSL (up to 100 Mbps over short distances) are copper-based technologies with significantly lower maximum bandwidth compared to GPON.


Page:    1 / 14   
Total 114 questions