WGU D413 Telecomm and Wireless Communications Actual Exam 2 Final Exam with Correct Solutions 2026 April Series

WGU D413 Telecomm and Wireless Communications Actual Exam 2 Final Exam with Correct Solutions 2026 April Series Which IEEE 802.11 wireless standard has the highest data rate? A. 802.11a B. 802.11b C. 802.11g D. 802.11n D. 802.11n A student is researching how personal devices connect to other devices using Bluetooth technology. Which IEEE standard working group can the student reference to learn more about Bluetooth connections? A. 802.15 B. 802.35 C. 802.18 D. 802.24 A. 802.15 A company is developing a television network to broadcast local news content using analog signals. Which multiplexing technique should be used? A. Frequency-division multiplexing B. Code-division multiplexing C. Synchronous time-division multiplexing D. Integrated Services Digital Network (ISDN) multiplexing A. Frequency-division multiplexing A network administrator is setting up a network that will utilize lasers to send analog data through fiber-optic cable. Which multiplexing technique should the administrator use? A. Wavelength-division multiplexing WGU D413 WGU D413 B. Frequency-division multiplexing C. Synchronous time-division multiplexing D. Asynchronous time-division multiplexing A. Wavelength-division multiplexing Which type of multiplexing is used to send and receive digital signals between connected devices? A. Time-division multiplexing B. Frequency-division multiplexing C. Wavelength-division multiplexing D. Amplitude-division multiplexing A. Time-division multiplexing Which category of multiplexing randomly allocates time slots to different data signals depending on the rate at which they are being generated from the source? A. Synchronous time-division multiplexing B. Asynchronous time-division multiplexing C. Integrated Services Digital Network (ISDN) multiplexing D. Transmission System 1 multiplexing B. Asynchronous time-division multiplexing Which multiplexing technique transmits each signal from one input source via a single time slot through the creation of different slots? A. Asynchronous time-division multiplexing B. Synchronous time-division multiplexing C. Dense wavelength-division multiplexing D. Code-division multiplexing B. Synchronous time-division multiplexing What are the three types of broadband modems? Cable, DSL, Fiber modems Baseband A method of transmitting data in the form of a digital signal, using the entire bandwidth of a cable. Broadband WGU D413 WGU D413 A method of transmitting data in the form of several analog signals at the same time. Which cable realizes noise protection with the use of foil shielding? A. A cable transmitting signals between 15 and 20 kHz B. A cable transmitting signals between 10 and 15 kHz C. A cable transmitting signals between 5 and 10 kHz D. A cable transmitting signals between 0 and 5 kHz A. A cable transmitting signals between 15 and 20 kHz Which type of waves are used in Bluetooth transmission? A. Low-power radio waves B. High-power radio waves C. Low-power ultraviolet waves D. High-power ultraviolet waves A. Low-power radio waves Which waves have higher frequencies than infrared transmission frequencies? A. Visible light waves B. Microwaves C. Radio waves D. Electromagnetic waves A. Visible light waves What is the wireless service that enables people to have access to mobile internet? A. Bluetooth B. Ethernet C. Wireless Application Protocol (WAP) D. Cellular Digital Packet Data (CDPD) D. Cellular Digital Packet Data (CDPD) Cat 5 100 Mhz, 100Mbps - 1 Gbps Commonly used in 10BaseT and 100BaseTX network Cat 5e WGU D413 WGU D413 100 Mhz, 100Mbps - 1 Gbps Cat 6 250 MHz, 1 Gbps Cat 6a 500 MHz, 10 Gbps Cat 7 600 MHz, 10 Gbps Cat 8 MHz, 40 Gbps Power over Ethernet (PoE) 802.3af, 13 watts at 48 volts 802.11a 54 Mbps - 5 GHz 802.11b 11 Mbps, 2.4 GHz 802.11g 54 Mbps, 2.4 GHz 802.11n 600 Mbps - 5GHz and 2.4GHz RG-6 Cable Coaxial connection 75 Ohms Broadband (Cable) RG-8 Coaxial connection 50 Ohms Thicknet (Ethernet) RG-11 Coaxial connection 75 Ohms Thick Coax (Cable/ Trunk lines) RG-58 Coaxial connection 50 Ohms Thinnet (Ethernet)