1) What is data transmission? a) The process of storing data on a computer b) The process of sending data from one device to another c) The process of deleting data from a device d) The process of creating new data 2) Which of the following is a characteristic of simplex transmission? a) Data flows in both directions simultaneously b) Data flows in both directions, but not at the same time c) Data flows in one direction only d) Data doesn't flow in any direction 3) In which transmission mode can both devices transmit and receive data, but not at the same time? a) Full-duplex b) Simplex c) Half-duplex d) No-duplex 4) What is an example of a simplex communication device? a) Telephone b) Radio station transmitter c) Video call d) Text messaging 5) Which transmission mode is most efficient for modern internet communication? a) Half-duplex b) Simplex c) Quarter-duplex d) Full-duplex 6) What type of transmission mode does a walkie-talkie use? a) Full-duplex b) Half-duplex c) Twisted pair cable d) Single strand cable 7) Which cable type is most commonly used in modern Ethernet networks? a) Fiber optic cable b) Coaxial cable c) Twisted pair cable d) Single strand cable 8) A regular telephone conversation is an example of which transmission mode? a) Full-duplex b) Half-duplex c) Simplex d) Quarter-duplexb. Half- 9) Which device typically uses simplex transmission? a) Smartphone b) Television remote control c) Computer mouse d) Bluetooth headphones 10) What is a key advantage of full-duplex transmission? a) It uses less energy b) It only needs one device c) It allows simultaneous two-way communication d) It's easier to set up 11) What happens in half-duplex transmission when one device is transmitting? a) Both devices can receive data b) The other device must wait to transmit c) Both devices can transmit d) The other device shuts down 12) What is a major advantage of bus topology? a) Easy to add new devices b) Fastest network type c) Most reliable d) Most secure 13) Which statement about data transmission is TRUE? a) It only works with computers b) It requires internet connection c) It enables information exchange between devices d) It only works with wireless devices 14) What is a limitation of simplex transmission? a) It's too fast b) Communication is one-way only c) It uses too much power d) It requires internet 15) Which transmission mode is most similar to a face-to-face conversation? a) Simplex b) Half-duplex c) Full-duplex d) No-duplex 16) What is a computer network? a) A single computer working alone b) A collection of interconnected computers and devices that can communicate and share resources c) A type of computer game d) A special kind of keyboard 17) Which of these is a basic network topology? a) Circle shape b) Triangle shape c) Star topology d) Square shape 18) What is a network node? a) special kind of computer game b) A type of internet browser c) A device in a network that can send, receive, or store data d) A type of computer virus 19) What is the main benefit of using a computer network? a) It makes computers run faster b) It allows resource sharing between connected devices c) It makes computers more expensive d) It reduces computer memory 20) What is a network segment? a) A portion of a network separated from other parts b) A type of computer mouse c) A computer game level d) A kind of computer screen 21) Which device connects computers in a local network? a) Printer c. b) Scanner c) Switch d) Keyboard 22) In a full mesh network, how is each device connected? a) To one other device b) To a central hub only c) To every other device d) To two nearby devices 23) What does WiFi allow computers to do? a) Run faster b) Connect to networks without wires c) Print documents d) Play music 24) Which topology requires a central device to manage all connections? a) Bus network b) Ring network c) Star network d) Mesh network 25) Which is an example of a network resource? a) A computer desk b) A shared printer c) A computer chair d) A computer manual 26) What is a network cable used for? a) Charging phones b) Playing games c) Connecting computers physically in a network d) Powering computers 27) What is a major advantage of fiber optic cables? a) Lowest cost b) Easiest to install c) Highest data transmission speeds d) Most flexible material 28) What is a network protocol? a) A set of rules for network communication b) A type of computer c) A computer password d) A network game 29) Which is a benefit of using a school network? a) Making the school bigger b) Making students smarter c) Sharing educational resources d) Making computers faster 30) What is the main difference between wired and wireless networks? a) Wired networks are always faster than wireless networks b) Wireless networks use cables while wired networks don't c) Wired networks use physical cables while wireless networks use d) radio waves 31) Which of the following is a common use of infrared technology? a) Connecting to the internet b) Remote controls for TVs and other devices c) Making phone calls d) Sending text messages 32) What is the typical maximum range of a Bluetooth connection? a) About 30 feet (10 meters) b) About 1 mile (1.6 kilometers) c) About 100 yards (91 meters) d) About 5 feet (1.5 meters) 33) Which network type typically provides the most stable and fastest connection? a) Wi-Fi b) Wired network c) Bluetooth d) Infrared 34) What is one advantage of Wi-Fi over wired networks? a) It's always more secure b) It's always faster c) It allows flexibility while staying connected 35) Which network type requires a router? a) Bluetooth b) Infrared c) Wi-Fi d) Direct cable connections 36) What can cause interference with Wi-Fi signals? a) Too many books in a room b) The color of the walls c) Microwave ovens and other electronic devices d) The temperature outside 37) Which feature is unique to Bluetooth technology? a) It can connect to any device within 1 mile b) It can pair devices for short-range communication c) It provides internet access d) It requires direct line of sight 38) What is a characteristic of wired networks? a) They allow easy mobility b) They don't require physical connections c) They provide more consistent speeds and more stable d) They never need maintenance 39) Which wireless technology is best for transferring files for 20 meter? a) Wi-Fi b) Bluetooth c) Infrared d) Radio waves 40) What is a common problem with wireless networks? a) Signal interference b) Too many cables c) They're too expensive to install d) They require too much maintenance 41) What is the main purpose of Wi-Fi? a) To control TV remotes b) To provide wireless internet access c) To make phone calls only d) To connect printers only 42) Which network type requires passwords most often? a) Infrared b) Wi-Fi c) Direct cable connections d) Bluetooth 43) What happens when you move too far from a Wi-Fi router? a) The router breaks b) Your device overheats c) The signal gets weaker d) Nothing changes 44) Which is true about Bluetooth devices? a) They need internet to work b) They must be paired before use c) They only work outdoors d) They require cables 45) Which network type is most commonly used in school computer labs? a) nfrared b) Bluetooth c) Wired network d) atellite 46) What can improve Wi-Fi signal strength? a) Being closer to the router b) Using more Bluetooth devices c) Turning off the lights d) Opening windows 47) In which network topology do all devices connect to a single cable? a) Star network b) Bus network c) Ring network d) Full mesh network 48) Which cable type uses glass or plastic to transmit data using light signals? a) Coaxial cable b) Twisted pair cable c) Fiber optic cable d) Copper cable 49) What is the main advantage of a star network topology? a) Uses less cable than other topologies b) If one device fails, others continue working c) Fastest data transmission speed 50) Which network topology requires the most cabling? a) Bus network b) Ring network c) Star network d) Full mesh network 51) Which cable type is commonly used in cable TV connections? a) Fiber optic cable b) Twisted pair cable c) Coaxial cable d) Network cable 52) What is the main disadvantage of twisted pair cables? a) Limited distance b) Too expensive c) Too thick d) Cannot carry internet signals 53) Which cable type is most commonly used in small office network? a) UTP b) NTP c) STP d) RTP 54) How does data typically travel in a ring topology? a) Through multiple paths simultaneously b) From the central hub to end devices c) In a single direction from device to device d) Through wireless connections only 55) If the main cable fails in a bus topology network, what happens? a) Only some devices lose connection b) The backup cable takes over c) The entire network fails

computer exam term 1 2025

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