1) Which topology connects all devices to a central hub? a) Star b) Bus c) Ring d) Mesh 2) What device forwards data packets between networks? a) Router b) Switch c) Modem d) Hub 3) What is the role of a switch in a network? a) To filter and forward data packets b) To connect to the internet c) To translate domain names to IPs d) To encrypt network traffic 4) What is the term for the arrangement of devices in a network? a) Protocol b) Gateway c) Firewall d) Topology 5) A ________ topology connects devices in a circular chain. a) Mesh b) Bus c) Ring d) Star 6) A ________ connects multiple devices in a LAN and forwards data based on MAC addresses. a) Router b) Hub c) Switch d) Modem 7) A hub is more intelligent than a switch. a) True b) False 8) A router can connect multiple networks together. a) False b) True 9) Which topology ensures maximum reliability by connecting each device to every other device? a) Star b) Ring c) Bus d) Mesh 10) What term refers to dividing a physical network into multiple virtual networks? a) LAN b) MAN c) VLAN d) WAN 11) What is a collision domain? a) A region covered by Wi-Fi signals b) A secure private network c) A network segment where packet collisions occur d) A part of the Internet 12) A bus topology requires a main cable that all devices connect to. a) False b) True 13) Which network type spans a large geographical area? a) LAN b) MAN c) PAN d) WAN 14) A ________ is a device that strengthens and retransmits network signals. a) Switch b) Router c) Repeater d) Hub 15) Which transmission mode allows two-way simultaneous communication? a) Half-duplex b) Broadcast c) Simplex d) Full-duplex 16) Bandwidth measures the speed of data transmission. a) False b) True 17) What type of address is assigned to every device in a network for identification? a) Firewall b) IP c) Gateway d) DNS 18) A ________ device connects two different types of networks and translates data between them. a) Router b) Gateway c) Switch d) Modem 19) What device is commonly used in wireless networks to connect devices? a) Repeater b) Firewall c) Access Point d) Modem 20) A WAN is typically used for office-level networks. a) True b) False 21) A ________ is used to block unauthorized access to a network. a) Firewall b) VLAN c) DNS d) Hub 22) Which type of network covers a small area like an office or building? a) PAN b) LAN c) WAN d) MAN 23) A mesh topology can still operate if one device fails. a) False b) True 24) What is the purpose of a DNS in networking? a) Forwarding network packets b) Encrypting user data c) Resolving domain names to IP addresses d) Blocking unauthorized access 25) A ________ acts as the interface between a local network and the internet. a) Switch b) Router c) Firewall d) Modem 26) Which network topology is the simplest and cheapest to implement? a) Bus b) Star c) Mesh d) Ring 27) A hybrid topology combines the features of multiple topologies a) True b) False 28) Which network type spans across a city or metropolitan area? a) MAN b) LAN c) WAN d) PAN 29) What is the role of a VLAN in networking? a) To divide a physical network into multiple virtual networks b) To amplify wireless signals c) To encrypt data d) To route data between networks 30) In a star topology, devices are connected to a ________. a) Central hub b) Ring connector c) Backbone cable d) Mesh router 31) What does TCP stand for? a) Transmission Control Protocol b) Total Control Protocol c) Transfer Communication Protocol d) Transmission Communication Protocol 32) Which protocol is used to transfer files over a network? a) FTP b) HTTP c) SMTP d) DNS 33) HTTP is a secure protocol for transferring data. a) True b) Fase 34) An IPv6 address is 128 bits long. a) True b) Fase 35) What does a subnet mask do? a) Defines the network and host portions of an IP address b) Blocks unauthorized devices c) Encrypts network traffic d) Assigns IP addresses 36) How many bits are there in an IPv4 address? a) 32 b) 64 c) 16 d) 128 37) What is the range of private IP addresses in Class C? a) 192.168.0.0 - 192.168.255.255 b) 10.0.0.0 - 10.255.255.255 c) 172.16.0.0 - 172.31.255.255 d) 127.0.0.0 - 127.255.255.255 38) How many layers are in the OSI model? a) 7 b) 5 c) 6 d) 4 39) Which OSI layer is responsible for routing data? a) Network b) Transport c) Data Link d) Session 40) What does the transport layer provide? a) Reliable data delivery b) Physical connections c) IP address resolution d) User authentication 41) The application layer is where user interaction occurs. a) True b) False 42) What tool is used to test the reachability of a device on a network? a) Ping b) Traceroute c) Netstat d) Nslookup 43) Which command shows the path data takes through a network? a) Traceroute b) Ping c) Nslookup d) Netstat 44) Bandwidth is the total data transfer capacity of a network. a) True b) False 45) Which frequency bands are used for Wi-Fi? a) 2.4 GHz and 5 GHz b) 3 GHz and 6 GHz c) 2 GHz and 4 GHz d) 1 GHz and 10 GHz 46) What does SSID stand for? a) Service Set Identifier b) Secure Signal ID c) System Signal Identifier d) Static Service Identifier 47) Wireless networks are less secure than wired networks by default. a) True b) False 48) What is a transmission mode? a) A method of transmitting data between two devices  b) A protocol for encrypting network traffic c) A device for forwarding packets d) A process for assigning IP addresses 49) Which transmission mode allows data to flow in only one direction? a) Simplex b) Half-Duplex c) Full-Duplex d) Broadcast 50) Which transmission mode allows two-way communication, but only one direction at a time? a) Half-Duplex b) Simplex c) Full-Duplex d) Asynchronous 51) Full-duplex transmission mode allows simultaneous data flow in both directions. a) True b) False 52) What is an example of simplex communication? a) Television broadcast b) Phone call c) File transfer d) Video conferencing

Network Fundamentals Quiz

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