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The HCIA-Access V2.5 exam covers a wide range of topics related to network access, including network security, authentication, authorization, and accounting (AAA), wireless access technologies, and network access control (NAC) solutions. H35-210_V2.5 exam also covers the latest industry standards and best practices related to network access.
NEW QUESTION # 42
What are the queue scheduling methods supported by MA5600?
- A. CQ
- B. WRR
- C. PQ
- D. FIFO
Answer: B,C
NEW QUESTION # 43
The ADSL2+ is an extension of the ADSL technology. It supports a maximum downstream rate of 24 Mbit/s and an upstream rate of 2.5 Mbit/s. The maximum transmission distance can reach 6.5 km.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
* ADSL2+ Specifications :
* Downstream Rate : ADSL2+ supports a maximum downstream rate of 24 Mbit/s under ideal conditions.
* Upstream Rate : The maximum upstream rate is typically 1 Mbit/s to 3.5 Mbit/s , depending on the line conditions.
* Transmission Distance : The maximum transmission distance for ADSL2+ is approximately 5.5 km , not 6.5 km. Beyond this distance, signal attenuation becomes significant, reducing performance.
* Why FALSE?
* The statement incorrectly states that the maximum transmission distance is 6.5 km, which exceeds the typical range for ADSL2+.
Thus, the correct answer is B .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: ADSL2+ Specifications.
* ADSL2+ Technical Overview by Huawei.
NEW QUESTION # 44
In the 802.1Q tag header, how many digits is the VLAN ID field, and how many VLANs can be specified in total?
- A. 4;16
- B. 10;1024
- C. 8;256
- D. 12;4096
Answer: D
NEW QUESTION # 45
Which of the following statements about IP routes are correct?
- A. Any route must contain the following information: source address, destination address, and next hop.
- B. Routing is a concept at the second layer of the OSI model.
- C. In a LAN, a route consists of the following parts: IP address and MAC address.
- D. IP routes are used to guide IP packet forwarding.
Answer: D
Explanation:
Let us analyze each option:
* Option A : Incorrect. A route does not include MAC addresses. It typically consists of a destination network, subnet mask, next-hop address, and outgoing interface.
* Option B : Correct. IP routes are essential for guiding the forwarding of IP packets from the source to the destination. Routers use routing tables to determine the best path for packet delivery.
* Option C : Incorrect. Routing is a concept at the network layer (Layer 3) of the OSI model, not the data link layer (Layer 2).
* Option D : Incorrect. A route does not require the source address. It only needs the destination network, subnet mask, and next-hop information.
Thus, the correct answer is B .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: IP Routing Basics.
* Routing Fundamentals in IP Networks by Huawei.
NEW QUESTION # 46
Is the following description correct? EPON data packets are variable length. The GPON downstream frame is of fixed length.
- A. True
- B. False
Answer: A
NEW QUESTION # 47
MA5600 supports ADSL2+, which of the following descriptions about ADSL2+ is incorrect?
- A. The farthest reachable distance is 6.5km
- B. Use high frequency bands, sub-channels (32-511) and sub-channels above 512.
- C. The spectrum bandwidth is 1.104MHz
- D. The maximum downlink speed is 24Mbit/s
Answer: C
NEW QUESTION # 48
Is the following description correct? Triple Play refers to the simultaneous provision of multiple different service access methods on one subscriber line.
- A. True
- B. False
Answer: A
NEW QUESTION # 49
Which of the following is the main control board of the UA5000 high-density system?
- A. PWX
- B. PVMB
- C. TSSB
- D. IPMB
Answer: B,D
NEW QUESTION # 50
Generally, which of the following is not a split ratio of an optical splitter in a PON?
- A. 1:4
- B. 1:14
- C. 1:8
- D. 1:18
Answer: B,D
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 .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: Optical Splitters.
* ITU-T G.984.x Standards for GPON .
NEW QUESTION # 51
If the outband NMS is unreachable, which of the following operations can be performed? (Select All that Apply)
- A. The inband and outband NMS IP addresses cannot be in the same IP address segment.
- B. Check the network cable.
- C. Check whether the IP address is set correctly.
- D. Check whether the subnet number and NE number are set correctly.
Answer: A,B,C
Explanation:
* A/B: Basic network checks (IP configuration and physical connectivity).
* C: Inband and outband NMS IPs must be in different subnets to avoid conflicts.
NEW QUESTION # 52
Which of the following is the downstream wavelength of XGS-PON?
- A. 1290 nm
- B. 1310 nm
- C. 1577 nm
- D. 1490 nm
Answer: C
Explanation:
* XGS-PON Wavelengths :
* XGS-PON (10-Gigabit Symmetric Passive Optical Network) uses specific wavelengths for upstream and downstream transmission:
* Downstream (OLT to ONU) : 1577 nm.
* Upstream (ONU to OLT) : 1270 nm.
* Why 1577 nm?
* The ITU-T G.9807.1 standard specifies 1577 nm as the downstream wavelength for XGS-PON.
This wavelength is chosen to avoid interference with GPON, which uses 1490 nm for downstream transmission.
* Other Options :
* 1490 nm : Used for downstream transmission in GPON, not XGS-PON.
* 1310 nm : Used for upstream transmission in GPON, not XGS-PON.
* 1290 nm : Not a standard wavelength in PON technologies.
Thus, the correct answer is C .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: XGS-PON Wavelengths.
* ITU-T G.9807.1 Standards for XGS-PON .
NEW QUESTION # 53
What are the bandwidth types of DBA in GPON network?
- A. Max
- B. Fix
- C. Non-assure
- D. Assure
Answer: A,B,D
NEW QUESTION # 54
Regarding MA5600 Super Vlan and Sub Vlan, which of the following descriptions are correct?
- A. Sub VLAN only contains physical ports, and a three-layer VLAN virtual interface can be established.
- B. Super VLAN is mainly used to save IP addresses
- C. Sub VLAN types can be: Smart VLAN, MUX VLAN, Standard VLAN.
- D. Super VLAN is different from VLAN in the usual sense. It is just a Layer 3 interface and does not contain physical ports.
Answer: B,D
NEW QUESTION # 55
Which one of the following protection schemes can protect branch fibers?
- A. GPON Type A protection
- B. GPON Type C protection
- C. GPON Type B dual-homing protection
- D. GPON Type B single-homing protection
Answer: C
NEW QUESTION # 56
Which of the following is not part of the PON network system?
- A. OAM
- B. ONU
- C. OLT
- D. ODN
Answer: A
NEW QUESTION # 57
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