HCIP-Access V2.5 (H35-211_V2.5-ENU) Free Practice Test

Question 1

Enable DHCP Option 82 switch in global and VLAN service template mode. Ports and service virtual ports allow user-side DHCP messages to carry ption82 information. When the access device receives user-side DHCP option 82 messages, what is processed strategy?

A. The access device strips the ption82 information carried in the DHCP message on the user side and adds the local user information.

B. The access device directly forwards the DHCP message on the user side without any processing.

C. The access device strips and forwards the Option 82 information of the DHCP message on the user side.

D. The access device discards the DHCP message on the user side.

Correct Answer: A

Question 2

OLT has a powerful rogue ONU control function, and can detect and isolate rogue ONUs in any scenario.

A. False

B. True

Correct Answer: A

Question 3

There are many protection methods for OLT dual uplinks. Which of the following technologies can be used as OLT dual uplinks? (Multiple choice)

A. Main control board protection

B. Link Aggregation

C. Smart link&monitor link

D. Ethernet Protection Group

Correct Answer: A,B,C,D

Question 4

For the PITP P mode, the VBAS request message is encapsulated in a PADS message and sent to the OLT.

A. FALSE

B. TRUE

Correct Answer: A

Question 5

At present, operators pay more and more attention to the reliability of the network, and put forward various reliability requirements for the equipment of the access network, from the reliability requirements of a single node to the end-to-end reliability requirements, these requirements mainly include which of the following aspects? (Multiple choice)

A. Downstream Protection Requirements

B. Device software-level protection requirements

C. Device hardware-level protection requirements

D. Upstream Protection Requirements

Correct Answer: A,B,C,D

Question 6

Regarding Gem port design principles, which of the following statement is wrong?

A. In FTTH mode, each user (ONU) is assigned a Gem port for each service flow.

B. In FTTB mode, for ordinary users, it is recommended that each ONU allocate Gem ports according to the outer VLAN of the service flow, and each Gem port corresponds to a maximum of 1024 VLAN.

C. Gem ports need to be planned under the same PON port, and the Gem port ID between PON ports can be repeated.

D. In FT TB mode, for important broadband dedicated line users, it is recommended that each broadband dedicated line user corresponds to a Gem port.

Correct Answer: B

Question 7

The range of class D multicast addresses is from 224.0.0.0 to 238.255.255.255.

A. False

B. Ture

Correct Answer: A

Question 8

What are the main congestion management technologies in OLT? (Multiple choice)

A. WRR

B. PQ+WRR

C. PO

D. WRED

Correct Answer: A,B,C

Question 9

Which of the following conditions are met to trigger automatic protection switching of GP ON Type B single-homing protection? (Multiple choice)

A. Trunk fiber break

B. Deterioration of backbone optical fiber line quality

C. OLT main POM port failure

D. Branch fiber break

Correct Answer: A,B,C

Question 10

Which of the following statements about the PITP protocol is wrong?

A. PITP protocol includes PITP Pi mode and PITP V mode

B. The purpose of OPIT feature is to provide the upper-layer authentication server with the physical location information of the access user. After the BRAS device obtains the user access location information, it can realize the binding authentication of the user account and the access location information, avoiding the user account Misappropriation and roaming

C. In PITP VI mode, the user's physical location information will be added to the P PoE message sent by the user side to cooperate with the upper server for user authentication

D. PITP P mode can also be called PPOE+ mode

Correct Answer: C

Question 11

The number of users under the OLT can also determine whether the VLA adopts single-layer or double-layer VLAN mode. Single-layer VLAN can be used when the number of users is small, and double-layer VLAN must be used when the need to differentiated services and the number of users is second to ().

A. 2K

B. 4K

C. SK

D. 1K

Correct Answer: B

Question 12

If you want to cooperate with the upper authentication server for user authentication, you can add the user's physical location information source to which field in the DHCP request message initiated by the user?

A. Options 61

B. Options 80

C. Options 82

D. Options 60

Correct Answer: C

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Huawei HCIP-Access V2.5 (H35-211_V2.5-ENU) Free Practice Test