Networking Concepts Quiz

What is the European equivalent of SONET?

• Wavelength Division Multiplexing

• Multiplexor

• Baseband

• SDH Multiplexing

What is commonly found in DSL?

• Code Division Multiplexing

• SONET

• Impulse Noise

• Discrete Multitone

Which type of compression does NOT retain the original data when uncompressed?

• Lossless Compression

• T-1 Compression

• Audio Compression

• Lossy Compression

What can combine all 24 channels into one channel?

• Discrete Multitone

• SONET

• Baseband

• T-1 Compression

What type of noise is also known as thermal noise?

• Crosstalk

• White Noise

• Jitter

• Gaussian Noise

Which of the following causes unwanted coupling between two signal paths?

• Impulse Noise

• Jitter

• Attenuation

• Crosstalk

What is the result of small timing irregularities in digital signals?

• Attenuation

• Impulse Noise

• Crosstalk

• Jitter

What term describes continuous loss of signal strength?

• Impulse Noise

• Crosstalk

• Jitter

• Attenuation

What type of error correction uses Hamming Code?

• Backward Error Correction

• Cyclic Redundancy Check

• Error Detection

• Forward Error Correction

Which of the following helps to detect errors?

• Crosstalk

• Jitter

• Keylogger

• Checksum