Description : Which of the following is not a transmission medium? a. telephone lines b. coaxial cables c. modem d. microwave systems
Last Answer : microwave systems
Description : Communication channel for telephone line is twisted pair cable and for TV is co_axial cable. -Technology
Last Answer : Optical fibre provides secure transmission as compared to twisted pair and co-axial cable. As, it is more immune to tapping than copper cables.
Description : Identify the fastest wired media out of the following: Ethernet cable, Optical fiber, Co_axial cable -Technology
Last Answer : Optical fiber
Description : Different computers are connected to a LAN by a cable and a (1) modem (2) interface card (3) special wires (4) telephone lines
Last Answer : interface card
Description : Computers cannot communicate with each other directly over telephone lines because they usedigitalpulses whereas telephone lines useanalog sound frequencies. What is the name of the device which permits digital to analog ... A. Interface B. Modem C. Attenuation D. Teleprocessor E. None of the above
Last Answer : Modem
Description : The device that converts computer output for transmission over telephone lines is called (1) interface (2) interpreter (3) modem (4) I/O port
Last Answer : modem
Description : What kind of transmission medium is most appropriate to carry data in a computer network that is exposed to electrical interferences? a) Unshielded twisted pair b) Optical fiber c) Coaxial cable d) Microwave
Last Answer : b) Optical fiber
Description : Modulation and demodulation is performed by (a) Microwave (b) Satellite (c) Modem -Technology
Last Answer : (c) Modem converts digital signals to analog signals or analog signals to digital signals for the purpose of transmitting data over telephone lines or vice-versa.
Description : A modem is connected in between a telephone line and a (a) computer -Technology
Last Answer : (a) Modem is a device that enables computers and other equipment to communicate with each other using telephone lines.
Description : The pieceof hardware that converts your computer'sdigital signal to ananalog signal that cantravel over telephone lines is called (A) red wire (B) blue cord (C) tower (D) modem (E) None of these
Description : The piece of hardware that converts your computers digital signal to an analog signal that can travel over telephone lines is called a: a) Red Wire b) Blue Cord c) Tower d) Modem e) None of These
Last Answer : d) Modem
Description : A modem- 1) Translates along Signals from a computer into digital Signals that can travel along conventional telephone lines 2) Translates digital Signals from a computer into analog Signals that can ... conventional telephone lines 3) Demodulates digital Signals from a computer. 4) None of these
Last Answer : 4) None of these
Description : FTTC stands for: a. Fiber Transmission Timing Constraint b. Fiber Transmission Technology Committee c. Fiber Telephone Transmission Cable d. Fiber To The Curb
Last Answer : d. Fiber To The Curb
Description : This is a global collection of high-powered computer that are connected together with cables, telephone lines, microwave dishes, satellites etc. A) Arpanet B) Internet C) Network
Last Answer : B) Internet
Description : Microwave transmission is an example of line_of_sight transmission. -Technology
Last Answer : TrueMicrowave are the radiowave which supports line-of-sight transmission.
Description : When the computer network uses telephone lines as communication channel -Technology
Last Answer : MODEMperforms the task of Modulation at sender's site and DEModulation at the receiver's end. Basically, our computer generates data in the form of digital signals which needs to be forwarded ... signals should be converted back to the original digital signals, then this is called demodulation.
Description : The digital signals to analog signals are carried out by ………., so that data can travel over telephone lines. -Technology
Last Answer : The digital signals to analog signals are carried out by MODEMso that data can travel over telephone lines.
Description : One advantage of dial-up-internet access is ___ 1) It utilises broadband technology 2) It utilizes existing telephone service 3) It uses a router for security 4) Modem speeds are very fast 5) None of these
Last Answer : Answer :2
Description : Identify the non suitable medium for 802.3 ethernet? a. A thin coaxial cable b. A twisted pair cable c. A microwave link d. A fiber optical cable
Last Answer : c. A microwave link
Description : Which of the following cannot be used as a medium for 802.3 ethernet? a) A thin coaxial cable b) A twisted pair cable c) A microwave link d) A fiber optical cable
Last Answer : c) A microwave link
Description : Communications bandwidth that has the highest capacity and is used by microwave, cable and fibre optics lines is known as: (A) hyper-link (B) broadband (C) bus width (D) carrier wave
Last Answer : Answer: B
Description : . Why are coaxial lines more efficient at microwave frequencies than two-wire transmission lines?
Last Answer : The electromagnetic fields are completely confined
Description : Transmission of printed material over telephone lines. A. Video text B. Facsimile C. Encoding D. Xerox copy
Last Answer : B. Facsimile
Description : Which of the following transmission systems provide the highest data rate to in individual device? a. computer bus b. telephone lines c. voice and mode d. lease lines
Last Answer : computer bus
Description : Which transmission mode is used for data communication along telephone lines? (A) Parallel (B) Serial (C) Synchronous (D) Asynchronous
Last Answer : (B) Serial
Description : It involves converting standard logic levels to a form more suitable to telephone transmission lines
Last Answer : igital line encoding
Description : I have a Surge Protector (with Data Line protection: ethernet, telephone, coaxial cable) Plugged into a UNGROUNDED Outlet. Do is there a risk? It is Safe?
Last Answer : My understanding is that the surge protector helps keep your equipment safe. And the grounding helps keep you safe. The surge protector will trip a circuit so any power spikes won't damage your stuff that is ... least that is how my brother in law explained it to me. (he is a licensed electrician)
Description : The local loop of the telephone system is understood to be A. a single piece of wire connecting the subscriber's telephone set to another telephone set in an adjacent room B. a two-wire or four- ... a facsimile machine to a computer D. a group of wires connecting a telephone set to a modem
Last Answer : B. a two-wire or four-wire communication circuit between the customer’s premise and central office
Description : Can phone (land) lines get crossed in one household (two seperate lines and two different telephone companies)
Last Answer : Wires crossed in the building. Doesn’t have anything to do with WIFI or different phone companies. Other companies still use AT&T (or babybell) lines to provide their service, if it isn’t over their co-ax.
Description : Do you think wifi connection can be interfere if the modem is near the fridge or microwave?
Last Answer : Seriously, I don't think that there is any kind of relationship between a Wi-Fi connection and modem or a refrigerator which would cause a potential interference with the Wi-Fi connection in any way ... or a desktop computer, so I really don't understand how it can interfere with Wi-Fi connection.
Description : The conversion of digital signal into analog for purposes of transmitting into the telephone line is done through ______. A. ISDN B. Radio C. RS232C D. Modem
Last Answer : D. Modem
Description : Which of the following is not referred to as data terminal equipment? A. Telephone set B. Printers C. Modem D. Computer
Last Answer : C. Modem
Description : The probability thata singlebit will be inerror on a typical public telephone lineusing 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error ratefor a communicationline using 9-bit frames is ... to A. 0.003 B. 0.009 C. 0.991 D. 0.999 E. None of the above
Last Answer : 0.009
Description : What are the four things needed to connect to the Internet? 1) Telephone line, modem, computer, and an ISP 2) Modem, computer, PDA and ISP 3) Telephone line, PDA, modem and computer 4) monitor, keyboard, mouse, modem
Last Answer : 1) Telephone line, modem, computer, and an ISP
Description : What are the four things needed to connect to the Internet? 1 Telephone line, modem, computer, and an ISP 2 Modem, computer, PDA and ISP 3 Telephone line, PDA, modem and computer 4 monitor, keyboard, mouse, modem
Last Answer : 1 Telephone line, modem, computer, and an ISP
Description : The telephone line is connected through the ____on the computer. (1) USB (2) Modem (3) Ethernet (4) PS2
Description : Which one of the following allows computers to transfer data using a telephone line ? (1) Keyboard (2) CPU (3) Modem (4) Printer
Description : The device that converts digital signals to analog signals at the start of long distance transmissions is (1) peripheral (2) modem (3) telephone (4) antenna
Description : What is the unit used to measure the data wf is transmitted through modem? (a) Bytes per second (b) Band -Technology
Last Answer : (c) Bits per second is the unit used to measure the data through modem.
Description : Information Technology is operation through applied technologies of computer science through and medium of electronic communications like A. TV B. Telephone C. Internet D. All of the above
Last Answer : D. All of the above
Description : The velocity of a wave travelling in the air medium without transmission lines or waveguides(wireless) is a) 6 x 10 8 b) 3 x 10 8 c) 1.5 x 10 8 d) 9 x 10 8
Last Answer : b) 3 x 10 8
Description : Shunt capacitance is neglected while considering (a) short transmission line (b) medium transmission line (c) long transmission line (d) medium and long transmission lines
Last Answer : (a) short transmission line
Description : In the analysis of which of the following lines shunt capacitance is neglected ? (a) Short transmission lines (b) Medium transmission lines (c) Long transmission lines (d) Medium as well as long transmission lines
Last Answer : (a) Short transmission lines
Last Answer : • Short line approximation for lines that are less than 80 km long. • Medium line approximation for lines whose lengths are between 80 km to 250 km. • Long line model for lines that are longer than 250 km.
Description : An example of an analog communication method is a. laser beam b. microwave c. voice grade telephone line d. all of the above
Last Answer : all of the above
Description : An example of ananalog communication method is A. laser beam B. microwave C. voice grade telephone line D. All of theabove E. None of the above
Last Answer : All of theabove
Description : In cable modem internet access, cable modem terminations system (CMTS) is at: a) cable provider's end b) customer end c) Both of Above d) None of The Above
Last Answer : c) Both of Above
Description : Identify the odd term amongst the following. (a) Microwave (b) Radiowave (c) Bluetooth -Technology
Last Answer : (d) Except optical fibre, all are wireless transmission media.
Description : Microwave transmits signals through open space like radio signal. -Technology
Last Answer : TrueIt supports long distance communication through space like radio signal
Description : A ………….. is a temporary connection that uses the Public Switched Telephone Network (PSTN) to connect to the Internet. -Technology
Last Answer : dial-up connection