Computer Networks Fundamentals: OSI Layers and Signal Transmission
Test your knowledge of computer networking concepts including OSI model layers and digital signal encoding techniques.
Questions
Where can a long string of 0s and 1s cause a drift and make it difficult for the receiver to decode correctly?
- Baseline wandering
- Data encoding
- Data rate
- Line coding
- Data element
Which of the following provides user interface and support for services, such as electronic mail, remote file access and transfer and shared database management?
- Application layer
- Network layer
- Data link layer
- Physical layer
- Peer process
Which of the following presents problems for a system that cannot pass low frequencies or a system that uses electrical coupling?
- Bandwidth
- DC components
- Self synchronization
- Signal rate
- Dispersion
Which of the following layers is concerned with the syntax and semantics of the information exchanged between two systems?
- Session layer
- Physical layer
- Presentation layer
- Open system
- ISO standard
Which of the following is a procedure of constraining something from a continuous set of values to a discrete set?
- Quantization
- Quantization level
- Quantization error
- Attenuation
- Thermal