Which of the following statements about overhead bytes is incorrect?

A1 and A2 are framing bytes. These bytes are used to separate STM-1 frames in a signal flow.

J0 is a regenerator section trace byte. This byte is used to repeatedly transmit a section access point identifier, so that the receive end can verify its continuous connection to the specified transmit end.

B1 is bit interleaved parity-8 (BIP-8). This byte is used to monitor bit errors at the regenerator section layer.

E1 and E2 are orderwire bytes. These bytes are used to provide a voice channel for orderwire connections.

Which of the following factors determines that the optical signal-to-noise ratio (OSNR) at the receive end decreases to a certain extent After signals are transmitted for a certain distance in a WDM system, the optical signal-to-noise ratio (OSNR) at the receive end decreases to a certain extent. Which of the following is the main cause?

Multiplexers and demultiplexers are used.

New types of optical fibers are not used.

Fiber attenuation is excessively high.

Which of the following methods can be used to multiplex lower-order ODUk to higher-order ODUk?

Wavelength division multiplexing

Frequency division multiplexing

Which of the following is the basic requirement of a DWDM system on a light source?

The output wavelength is stable.

The direct modulation method is used.

The dispersion tolerance is low.

Which of the following statements about the definition of SDH is correct?

A complete standard digital signal hierarchy that provides synchronous digital transmission, multiplexing, and cross-connection

A hierarchy of standardized digital signals that can be asynchronously multiplexed

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

A hierarchy that can be used for asynchronous digital transmission

Huawei H31-311 Practice Test 5 - Free Online Exam Questions 161-186

Spam

Selling illegal goods, money scams etc.

Hate Speech

Serious attack on a group.

Harassment and bullying

Harassing an individual (including doxing)

Harmful activities

Threatening or glorifying violence or serious harm, including self-harm

Adult content (Consensual)

Nudity/Sexual content

Sexual exploitation and abuse (child safety)

Sexually explicit or suggestive imagery or writing involving minors

Sexual exploitation and abuse (adults and animals)

Sexually explicit or suggestive imagery or writing involving non-consenting adults or non-humans

Plagiarism

Reusing content without attribution (link and blockquotes)

Poorly written

Not in English or has very bad formatting, grammar, and spelling

Inappropriate credential

Author's credential is offensive, spam, or impersonation

Other

Ex. Illegal content, incomplete question...

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