Get H31-311_V2.5 Products Practice Material for H31-311_V2.5 Exam Question Preparation [Q72-Q94]

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NO.72 In a 2.5GMSP ring consisting of four MSTP sites, which of the following statements about alarm reports is correct when a protection switchover occurs?

PS Alarms are reported on the tributary board.

APS-INDI alarms are reported on the xCS board. .

Report APS-INDl alerts on the system dashboard.

Report APS-INDI alarms on the board.

NO.73 A PAUSE frames use reserved multicast addresses and are not forwarded by bridges or switches. In this way, the PAUSE frame does not generate any additional information.

True

Error

NO.74 EPL services use ports and bandwidth exclusively, and different users may need to share resources. Which of the following methods can be used to isolate user data?

VLAN ID

MPLS tags

QinQ Technical Wood

All of the above

NO.75 Compared with dense wavelength division multiplexing (DWDM) systems, crude glass division multiplexing (CWDM) systems provide a certain amount of glass length and transmission distance within (kmkm), which greatly reduces system cost and has strong flexibility

100

200

NO.76 What of the following operations may interrupt the network element service? (Multiple choice).

search protects the subnet

Look for trails

Activate the trail

Download the network metadata

NO.77 Automatic Laser Shutdown (ALS): When no optical signal is received, the ALS function automatically turns off the corresponding optical module. This feature protects field maintenance personnel.

True

Error

NO.78 If the overhead bytes pass through two plugged backplane buses, then the two slots are called paired slots that enable automatic transparent transfer of overhead bytes, such as (), () and (). Even if the SCC on the local network element The board is offline, which can also improve msP switching performance and protect DCC communication with other network elements. (Multi-quality selection).

K bytes

D bytes

E1 bytes

B1 word strip

NO.79 For OSN3500, there is a slot mapping relationship between the processing board and the interface pre-processor. The processing board in slot 1 maps to the interface board in slots 19-20.

True

False

NO.80 The rate of SF64 and SL64 boards is STM54. Therefore, the two plates can be interconnected.

True

False

NO.81 Which of the following is the basic requirement of the DWDM system in the light source?

output wavelength stabilization

Use the direct modulation method

Low dispersion tolerance.

The launch function is very high

NO.82 Which of the following statements about the advantages of OTN are incorrect?

WDM function is used to meet the requirements of the bait fiber Tbit/s bandwidth.

OTN provides the final five levels of nested or overlapping TCM connection monitoring.

OTN provides powerful out-of-band FEC functionality to effectively ensure line transmission performance.

0TN provides 2.7 Gbi/s, 10.7Gbt/s, 43Gbt/s and even 111.8 Gbit/s high-speed interfaces.

NO.83 When using a script to back up U2000 data, the backup speed is fast because the backup file is small.

True

False

NO.84 Which of the following statements about overhead bytes is incorrect?

A1 and A2 are framed bytes” These bytes are used to separate STM-1 frames in the signal stream. .

J0 is the regenerator part trace byte. This byte is used to resynch the send segment access point identifier so that the receiving end can verify its continuous connection to the specified sender.

B1 is better than holding interleaved parity 8 (BIP-8). This byte is used to monitor for bit errors in the regenerator section layer.

E1 and E2 are wired bytes. These bytes are used to provide a voice channel for order line connections.

NO.85 Which of the following statements regarding the protection of the cross-connecting plate 1+1 is correct? (Multiple choice).

The source business board sends services to the main and standby crossover boards. .

After the service cross-connection is completed, the active and standby cross-board sends the data of the primary cross-board to the receiving service board.

The receiving service board can only receive data from the active cross-link board

The bus of the two cross-connected modules works independently and does not interfere with each other. .

Dual bus system structure indicates that the service board performs dual data transfer to the cross-connection side and selectively receives data on the cross-connection side. .

Both cross-connecting plates have the same configuration. The service board will selectively receive services from one of them based on the quality of service and the status of the cross-connecting board. .

NO.86 Are the following statements regarding the definition of SDH correct?

hierarchy that can be used for asynchronous digital transfers

A hierarchy of standardized digital signals that can be asynchronously reused

A hierarchy of standardized digital signals that can be cross-connected asynchronously

Complete hierarchy of standard mathematical signals, providing simultaneous digital transmission multiplexing and cross-connectivity

NO.87 Which of the following is not the advantage of WDM?

Large capacity and transparent data transfer

Easy to upgrade and maximize protection for existing investments

gold replacement for SDH equipment

Future compatible with all optical switching networks

NO.88 By default, B2-EXC alerts are reported when the number of B2 bit errors exceeds the () threshold.

0.000000001

0.00001

0.001

0.01

NO.89 During service configuration, there are two time slot modes. Huawei uses interleaved time slot mode by default.

True

False

NO.90 Which of the following is not an EVPLAN feature?

bandwidth sharing

Forwarding based on MAC address

point-to-point, and point-to-multipoint topologies

Multipoint to multipoint topology

NO.91 When there is a Critical Error In Seconds (SES) in the PM portion of the ODUk layer, which of the following alarms is reported by NMS?

ODUk_PM_ES

ODUk_PM_SES

ODUk_PM_SESR

ODUk_PM_UAS

NO.92 SDH signals must be scrambled before they can be transmitted over optical fibers. Which of the following bytes is not scrambled? (Multiple choice).

NO.93 Which of the following statements about the clock source are incorrect?

The internal clock source has the lowest priority due to low accuracy.

Typically, a branch clock is not used as a clock source for a device.

Select the same SSM co-editor for all NE in the clock protection subnet

If the difficultY SSM protocol is enabled, you need to set the clock source ID to correct the answer.

NO.94 When configuring VLAN-based service types, which of the following features must be enabled on the port?

Flow control

Go to check

Autonegotiation mode

Broadcast packet suppression

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