1 What is a protocol in computer networking? A A set of rules for communication B A type of cable C A hardware device D A software application
2 In which transmission mode can data flow in only one direction? A Simplex B Half-duplex C Full-duplex D Multiplex
3 What does TCP/IP stand for? A Transmission Control Protocol / Internet Protocol B Transfer Control Protocol / Internal Protocol C Telecommunication Control Protocol / Internet Protocol D Transmission Connection Protocol / Internet Protocol
4 Which type of network connects devices within a person's immediate vicinity, such as a room? A LAN B PAN C WAN D MAN
5 Which of the following is NOT a main objective of a computer network? A Resource sharing B Data communication C Increasing hardware cost D Reliability
6 In which transmission mode can data flow in both directions but only one direction at a time? A Simplex B Half-duplex C Full-duplex D Multiplex
7 Which network topology connects each device to a central hub or switch? A Bus topology B Ring topology C Star topology D Mesh topology
8 In which topology are all devices connected to a single central cable? A Star Topology B Ring Topology C Bus Topology D Mesh Topology
9 Which networking device connects multiple networks and chooses the best path for data? A Switch B Hub C Router D Access Point
10 Which of the following is a real-world application of computer networks in healthcare? A Online banking B Telemedicine C Online shopping D Video streaming
11 Which network security method uses hardware or software to control incoming and outgoing traffic? A Encryption B Antivirus software C Firewall D Password
12 Which network security method uses a barrier to control incoming and outgoing traffic? A Encryption B Antivirus Software C Firewall D Password
13 Which device is used to connect a wireless network to a wired network? A Router B Switch C Access Point D Modem
14 Which of the following is a key concept in network security? A Confidentiality B Topology C Bandwidth D Protocol
15 Which transmission mode allows data to flow in only one direction? A Simplex B Half-Duplex C Full-Duplex D Multiplex
16 Which device is used to connect a wireless device to a wired network? A Switch B Router C Access Point D Modem
18 In which transmission mode can data flow in only one direction at a time? A Simplex B Half-Duplex C Full-Duplex D Duplex
19 Which device is used to connect multiple devices in a star topology? A Switch B Router C Modem D Repeater
20 Which of the following is an objective of computer networks? A To isolate computers B To share resources and information C To increase the cost of communication D To reduce data storage options
22 In a bus topology, what happens if the main cable fails? A Only one computer is affected B The entire network stops working C Data transfer speeds up D A backup cable is automatically used
23 At which OSI layer is data encapsulated into frames? A Physical Layer B Data Link Layer C Network Layer D Transport Layer
24 Which device is used to connect multiple networks and select the best path for data? A Switch B Router C Access Point D Hub