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Questions and Answers
What is the main function of Layer 1, The Physical Layer?
What is the main function of Layer 1, The Physical Layer?
- Separates signals by frequency
- Routes messages to the right protocol stack
- Determines the type and method for sharing the network (correct)
- Accomplishes switching by using a fast-switching matrix
What type of system is it if modulation-demodulation is used, i.e., if it uses a carrier signal and data modulation/demodulation?
What type of system is it if modulation-demodulation is used, i.e., if it uses a carrier signal and data modulation/demodulation?
- Baseband system
- Switched media system
- Broadband or carrier-band system (correct)
- Contention method system
What does broadband refer to in the context of network technology?
What does broadband refer to in the context of network technology?
- Using a fast-switching matrix
- Containing only a single carrier on the bus
- Separating signals by frequency or time (correct)
- Having only one digital signal on the bus
What technology offers network services for multiple LANs on one trunk or consists of carrier-supplied services like ISDN and DSL?
What technology offers network services for multiple LANs on one trunk or consists of carrier-supplied services like ISDN and DSL?
What is the main characteristic of baseband transmission?
What is the main characteristic of baseband transmission?
What is the main characteristic of switched media access schemes?
What is the main characteristic of switched media access schemes?
What is a common name for industrial networks according to the text?
What is a common name for industrial networks according to the text?
In data communications of the 1970s, what made it a costly venture?
In data communications of the 1970s, what made it a costly venture?
What do industrial LANs include according to the text?
What do industrial LANs include according to the text?
According to the preferred definition in the text, when does a company have a LAN?
According to the preferred definition in the text, when does a company have a LAN?
What is the IEEE 802 model primarily concerned with?
What is the IEEE 802 model primarily concerned with?
What was the primary focus of data communications in the 1970s according to the text?
What was the primary focus of data communications in the 1970s according to the text?
What does the combination of 'smart' devices and electrical connectivity constitute, as per the text?
What does the combination of 'smart' devices and electrical connectivity constitute, as per the text?
What are some common names for industrial networks as mentioned in the text?
What are some common names for industrial networks as mentioned in the text?
What can be used to form a distributed control system according to the text?
What can be used to form a distributed control system according to the text?
What should one look at first to understand how the IEEE 802 model complements other models?
What should one look at first to understand how the IEEE 802 model complements other models?
What is the main difference between baseband and broadband?
What is the main difference between baseband and broadband?
What is a characteristic of the star topology?
What is a characteristic of the star topology?
What is an advantage of the bus topology?
What is an advantage of the bus topology?
Which type of transmission media is considered for Ethernet systems?
Which type of transmission media is considered for Ethernet systems?
What is the main difference between the original 802.11 standard and standard 802.11a?
What is the main difference between the original 802.11 standard and standard 802.11a?
What is a characteristic of the ring topology?
What is a characteristic of the ring topology?
What does network topology refer to?
What does network topology refer to?
Why was twisted-pair telephone wiring investigated by early network designers?
Why was twisted-pair telephone wiring investigated by early network designers?
What does Ethernet switches essentially function as?
What does Ethernet switches essentially function as?
What type of topology does most broadband systems use?
What type of topology does most broadband systems use?
Which type of cable is considered ideal for ring topology networks?
Which type of cable is considered ideal for ring topology networks?
What does the term 'logical connection' refer to in network systems' architecture?
What does the term 'logical connection' refer to in network systems' architecture?
What is the function of a repeater in a network?
What is the function of a repeater in a network?
What is the main function of a hub in a network?
What is the main function of a hub in a network?
What kind of devices do modern bridges typically operate as?
What kind of devices do modern bridges typically operate as?
What is the main difference between a bridge and an Ethernet switch?
What is the main difference between a bridge and an Ethernet switch?
What is the function of a router in a network?
What is the function of a router in a network?
What is the primary function of a brouter in a network?
What is the primary function of a brouter in a network?
What is the main function of gateways in the context of industrial settings?
What is the main function of gateways in the context of industrial settings?
What is media access in the context of network operation?
What is media access in the context of network operation?
What is polling as an access method in networking?
What is polling as an access method in networking?
What is an example of a modified method of polling?
What is an example of a modified method of polling?
What is one of the functions mentioned for gateways in Internet terminology?
What is one of the functions mentioned for gateways in Internet terminology?
What is one function mentioned for gateways in industrial settings?
What is one function mentioned for gateways in industrial settings?
Which IEEE 802.11 standard operates in the 60 GHz millimeter wave spectrum?
Which IEEE 802.11 standard operates in the 60 GHz millimeter wave spectrum?
Which IEEE 802.11 standard allows WLAN operation in the TV white space spectrum in the VHF and UHF bands?
Which IEEE 802.11 standard allows WLAN operation in the TV white space spectrum in the VHF and UHF bands?
Which IEEE 802.11 standard provides a data rate of up to 433.3 Mbps per spatial stream in 80 MHz channels in the 5 GHz band?
Which IEEE 802.11 standard provides a data rate of up to 433.3 Mbps per spatial stream in 80 MHz channels in the 5 GHz band?
Which IEEE 802.11 standard is meant to cover much larger areas than the 802.11 standards?
Which IEEE 802.11 standard is meant to cover much larger areas than the 802.11 standards?
What technology is used to operate the IEEE 802.11 standards over moderate distances and provide a bit rate comparable to wired LANs?
What technology is used to operate the IEEE 802.11 standards over moderate distances and provide a bit rate comparable to wired LANs?
Which IEEE 802.11 standard uses the 5 GHz band and provides up to 54 Mbps?
Which IEEE 802.11 standard uses the 5 GHz band and provides up to 54 Mbps?
Which IEEE 802.11 standard extended the original 802.11 to provide 11 Mbps transmission in the 2.4 GHz band using DSSS?
Which IEEE 802.11 standard extended the original 802.11 to provide 11 Mbps transmission in the 2.4 GHz band using DSSS?
Which IEEE 802.11 standard works in the 2.4 GHz band and has a maximum data rate of 54 Mbps?
Which IEEE 802.11 standard works in the 2.4 GHz band and has a maximum data rate of 54 Mbps?
Which IEEE 802.11 standard uses an orthogonal frequency division multiplexing encoding scheme rather than FHSS or DSSS?
Which IEEE 802.11 standard uses an orthogonal frequency division multiplexing encoding scheme rather than FHSS or DSSS?
Which IEEE 802.11 standard uses multiple antennas technology to make possible spatial multiplexing and other coding schemes?
Which IEEE 802.11 standard uses multiple antennas technology to make possible spatial multiplexing and other coding schemes?
What does IEEE 802.16 WiMAX stand for?
What does IEEE 802.16 WiMAX stand for?
What characterizes Wireless Mesh Networks?
What characterizes Wireless Mesh Networks?
What is the maximum distance for 1000BASE-T over copper?
What is the maximum distance for 1000BASE-T over copper?
Which standard was developed for unshielded twisted pair in the 10 GbE?
Which standard was developed for unshielded twisted pair in the 10 GbE?
What is the primary responsibility of the MAC layer in IEEE 802 Media Access Control?
What is the primary responsibility of the MAC layer in IEEE 802 Media Access Control?
What is a characteristic of Token Passing Bus networks?
What is a characteristic of Token Passing Bus networks?
What does 'connectionless' service mean?
What does 'connectionless' service mean?
What are the maximum distances for 1000BASE-SX and 1000BASE-LX?
What are the maximum distances for 1000BASE-SX and 1000BASE-LX?
What is the primary function of the Logical Link Control in IEEE 802.2?
What is the primary function of the Logical Link Control in IEEE 802.2?
What type of cable is required for 1000BASE-CX?
What type of cable is required for 1000BASE-CX?
What is the maximum distance for 1000BASE-T over copper?
What is the maximum distance for 1000BASE-T over copper?
What type of cable is required for 1000BASE-CX?
What type of cable is required for 1000BASE-CX?
What is the maximum distance for 10GbBASE-SR over fiber?
What is the maximum distance for 10GbBASE-SR over fiber?
What was the standard known as for the copper version of the 10 GbE?
What was the standard known as for the copper version of the 10 GbE?
What is the main function of gateways in the context of industrial settings?
What is the main function of gateways in the context of industrial settings?
What characterizes Wireless Mesh Networks according to the text?
What characterizes Wireless Mesh Networks according to the text?
What is a characteristic of the ring topology according to the text?
What is a characteristic of the ring topology according to the text?
What does 'connectionless' service mean as per the text?
What does 'connectionless' service mean as per the text?
What technology offers network services for multiple LANs on one trunk or consists of carrier-supplied services like ISDN and DSL?
What technology offers network services for multiple LANs on one trunk or consists of carrier-supplied services like ISDN and DSL?
What is the main characteristic of baseband transmission according to the text?
What is the main characteristic of baseband transmission according to the text?
Which IEEE 802.11 standard uses multiple antennas technology to make possible spatial multiplexing and other coding schemes?
Which IEEE 802.11 standard uses multiple antennas technology to make possible spatial multiplexing and other coding schemes?
What was the primary focus of data communications in the 1970s according to the text?
What was the primary focus of data communications in the 1970s according to the text?
In an event-driven polling scheme, how does the master station initiate communication with the stations?
In an event-driven polling scheme, how does the master station initiate communication with the stations?
What is the defining characteristic of token passing in a network?
What is the defining characteristic of token passing in a network?
What is the minimum length requirement for Ethernet frames at a speed of 10 Mbps to prevent collisions?
What is the minimum length requirement for Ethernet frames at a speed of 10 Mbps to prevent collisions?
What is the interpretation of 10BASE5 in terms of network specifications?
What is the interpretation of 10BASE5 in terms of network specifications?
What is the primary requirement for the connecting cable in 100BASE-T as compared to 10BASE-T?
What is the primary requirement for the connecting cable in 100BASE-T as compared to 10BASE-T?
What is the main benefit of using 100BASE-FX in full duplex mode?
What is the main benefit of using 100BASE-FX in full duplex mode?
What distinguishes 1000BASE-T from other Ethernet standards such as 10BASE-T and 100BASE-T?
What distinguishes 1000BASE-T from other Ethernet standards such as 10BASE-T and 100BASE-T?
What is the interpretation of 10BASE-FL in terms of network specifications?
What is the interpretation of 10BASE-FL in terms of network specifications?
What is the main function of the IEEE 802.3 standard in industrial networks?
What is the main function of the IEEE 802.3 standard in industrial networks?
What characterizes ThinNet/10BASE2 as compared to ThickNet/10BASE5?
What characterizes ThinNet/10BASE2 as compared to ThickNet/10BASE5?
What distinguishes 100BASE-FX from 100BASE-T in terms of network specifications?
What distinguishes 100BASE-FX from 100BASE-T in terms of network specifications?
What is the significance of using RG58A/U coaxial cable in network connections?
What is the significance of using RG58A/U coaxial cable in network connections?
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