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Questions and Answers
What is the primary function of the physical layer in the OSI model?
What is the primary function of the physical layer in the OSI model?
- To manage and control data exchange between devices
- To encode and decode data for transmission
- To provide routing and switching of data packets
- To create electrical, optical, or radio wave signals that represent the bits in each frame (correct)
Who defines the standards governing the physical layer?
Who defines the standards governing the physical layer?
- Electrical and communications engineering organizations (correct)
- Internet Engineering Task Force (IETF)
- Software engineers and computer scientists
- OSI model developers
What are the three functional areas addressed by Physical Layer Standards?
What are the three functional areas addressed by Physical Layer Standards?
- Network Layer, Transport Layer, and Session Layer
- Physical Components, Encoding, and Routing
- Signaling, Error Correction, and Flow Control
- Physical Components, Encoding, and Signaling (correct)
What is the role of the destination node physical layer?
What is the role of the destination node physical layer?
What is encoded and transmitted by the physical layer?
What is encoded and transmitted by the physical layer?
What is the primary focus of the physical layer standards?
What is the primary focus of the physical layer standards?
What is the purpose of the physical components in the physical layer?
What is the purpose of the physical components in the physical layer?
What is the relationship between the physical layer and the data link layer?
What is the relationship between the physical layer and the data link layer?
What is encoding in the context of the physical layer?
What is encoding in the context of the physical layer?
What type of signal transition represents a 0 bit in Manchester encoding?
What type of signal transition represents a 0 bit in Manchester encoding?
What type of encoding is used in 100BASE-TX Ethernet standards?
What type of encoding is used in 100BASE-TX Ethernet standards?
What is the primary function of the physical layer in terms of signaling?
What is the primary function of the physical layer in terms of signaling?
What determines the method of signaling in the physical layer?
What determines the method of signaling in the physical layer?
What is the purpose of encoding in the physical layer?
What is the purpose of encoding in the physical layer?
What type of encoding is used in older Ethernet standards such as 10BASE-T?
What type of encoding is used in older Ethernet standards such as 10BASE-T?
What is the role of physical layer standards in terms of signaling?
What is the role of physical layer standards in terms of signaling?
What is the main difference between Goodput and Throughput?
What is the main difference between Goodput and Throughput?
What is the primary factor that limits copper cabling in networks?
What is the primary factor that limits copper cabling in networks?
What effect does crosstalk have on data signals in copper cabling?
What effect does crosstalk have on data signals in copper cabling?
What acts as a mitigation technique for attenuation in copper cabling?
What acts as a mitigation technique for attenuation in copper cabling?
How does latency affect the transfer of data between two points?
How does latency affect the transfer of data between two points?
Which of the following elements can lead to signal distortion in copper cabling?
Which of the following elements can lead to signal distortion in copper cabling?
What determines the measure of data transferred over a given period of time in a network?
What determines the measure of data transferred over a given period of time in a network?
Why is copper cabling considered the most common type of cabling in networks today?
Why is copper cabling considered the most common type of cabling in networks today?
Why are fiberoptic cables well suited for use?
Why are fiberoptic cables well suited for use?
What is a limitation of wireless communication when it comes to security?
What is a limitation of wireless communication when it comes to security?
What distinguishes fiberoptic cabling from UTP cabling in terms of installation skills?
What distinguishes fiberoptic cabling from UTP cabling in terms of installation skills?
What is a key characteristic of wireless media that impacts bandwidth sharing among users?
What is a key characteristic of wireless media that impacts bandwidth sharing among users?
Why is fiberoptic cabling immune to electrical hazards?
Why is fiberoptic cabling immune to electrical hazards?
What factor makes wireless communication more susceptible to disruptions?
What factor makes wireless communication more susceptible to disruptions?
How does fiberoptic cabling compare to UTP cabling in terms of media and connector costs?
How does fiberoptic cabling compare to UTP cabling in terms of media and connector costs?
What property of fiberoptic cabling makes it well suited for long-distance connections?
What property of fiberoptic cabling makes it well suited for long-distance connections?
What is bandwidth in a network?
What is bandwidth in a network?
Which unit is used to measure bandwidth?
Which unit is used to measure bandwidth?
What does digital bandwidth measure?
What does digital bandwidth measure?
What are the factors that determine the practical bandwidth of a network?
What are the factors that determine the practical bandwidth of a network?
Which term is NOT used to measure the quality of bandwidth?
Which term is NOT used to measure the quality of bandwidth?
What does 'bps' stand for in the context of bandwidth measurement?
What does 'bps' stand for in the context of bandwidth measurement?
How many bits are in a kilobit per second (Kbps)?
How many bits are in a kilobit per second (Kbps)?
What is the equivalent of 1 Gbps in bits per second (bps)?
What is the equivalent of 1 Gbps in bits per second (bps)?
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