1) Which device connects a computer to the internet through a telephone line? a) Router b) Modem c) Switch d) Hub 2) What does RJ45 mainly refer to? a) A type of modem b) A connector for network cable  c) A wireless signal d) A type of repeater 3) Which device boosts weak signals in a network? a) hub b) Switch c) Repeater d) modem 4) The device that connects multiple computers in a LAN and sends data to all ports is a: a) hub b) switch c) modem d) router 5) A Switch sends data only to: a) all devices  b) The modem c) The intended device d) the repeater  6) A Router connects: a) Similar networks b) Different networks (like LAN to Internet) c) Only computers d) Only wireless devices 7) The Gateway works as: a) A network entry and exit point  b) Repeater c) A connector d) A cable 8) Which device allows wireless connection to a network? a) RJ45 b) Switch c) Modem d) Wi-Fi care 9) The Ethernet card is also called: a) Router b) Modem c) Network Interface Card(NIC) d) Repeater 10) Which of these devices works at the data link layer (Layer 2) of the OSI model? a) Switch  b) Router c) Gateway d) Modem 11) What is the full form of Modem? a) Modulator–Demodulator b) modular device c) Modern Device d) Mode Detector 12) Which device converts digital signals to analog and vice versa? a) Router b) Switch c) Modem d) Hub 13) Which device is used for wired network connections in computers? a) Wi-Fi Card b) Ethernet Card c) RJ45 Connector d) Modem 14) How many pins does an RJ45 connector have? a) 4 b) 6 c) 8 d) 12 15) Which device boosts or regenerates weak signals in a network? a) Repeater b) Router c) Hub d) Switch 16) Which device broadcasts data to all connected devices? a) Router b) Switch c) Hub d) Gateway 17) Which device forwards data only to the intended device? a) Modem b) Hub c) Switch d) Repeater 18) Which device connects different networks and routes data between them? a) Router b) Hub c) Gateway d) Modem 19) Which component enables wireless internet connectivity in laptops and PCs? a) RJ45 Connector b) Ethernet Card c) Wi-Fi Card d) Modem 20) Which device translates protocols and acts as a gate between networks? a) Switch b) Router c) Gateway d) Repeater

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