MCQs

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1. Which networking device operates only at the OSI model’s physical layer (Layer 1) and simply regenerates and amplifies signals to extend the length of the network?
   a. Repeater
   b. Switch
   c. Router
   d. Bridge
   Answer: a. Repeatergeeksforgeeks+2
2. Which device connects multiple Ethernet devices, operates at layer 1, and transmits data to all connected devices, leading to potential traffic congestion?
   a. Hub
   b. Router
   c. Switch
   d. Gateway
   Answer: a. Hubnetwrix+1
3. A network device that connects two or more network segments, filters data traffic, and operates at the data link layer is known as:
   a. Bridge
   b. Repeater
   c. Router
   d. Gateway
   Answer: a. Bridgegeeksforgeeks+1
4. Which networking device uses MAC addresses to forward frames within LANs and creates separate collision domains?
   a. Switch
   b. Modem
   c. Hub
   d. Repeater
   Answer: a. Switchnetwrix+1
5. Routers work primarily at which OSI layer and use what to direct data packets across networks?
   a. Layer 3, IP addresses
   b. Layer 2, MAC addresses
   c. Layer 1, signals
   d. Layer 4, TCP segments
   Answer: a. Layer 3, IP addressesgeeksforgeeks+1
6. Which device converts data formats between distinct network architectures/protocols, often connecting LANs to the internet and providing protocol translation?
   a. Gateway
   b. Modem
   c. Switch
   d. Hub
   Answer: a. Gatewaytechtarget+2
7. What is a brouter?
   a. A device combining bridge and router functions
   b. A wireless-only router
   c. An old model of bridge
   d. A switch with firewall
   Answer: a. A device combining bridge and router functionsnetwrix+1
8. Which device provides a dedicated connection from a computer to a network and is identified by a unique MAC address?
   a. Network Interface Card (NIC)
   b. Switch
   c. Repeater
   d. Modem
   Answer: a. Network Interface Card (NIC)netwrix
9. Which network device amplifies analog signals for transmission over long distances, such as dial-up internet connections?
   a. Modem
   b. Switch
   c. Repeater
   d. Hub
   Answer: a. Modemtechtarget+1
10. What is the main function of an Access Point in networking?
    a. Allowing wireless devices to connect to a wired network
    b. Encrypting traffic
    c. Managing routing tables
    d. Converting signals
    Answer: a. Allowing wireless devices to connect to a wired networktechtarget+1
11. Which device allows centralized security policy enforcement and often blocks unwanted traffic between networks?
    a. Firewall
    b. Bridge
    c. Switch
    d. Modem
    Answer: a. Firewallmotadata+1
12. Which type of switch combines Layer 2 switching with Layer 3 routing functionality?
    a. Layer 3 switch
    b. Unmanaged switch
    c. Passive switch
    d. Rack-mounted switch
    Answer: a. Layer 3 switchpynetlabs+1
13. What kind of switch operates without configuration, providing simple connectivity for small office/home environments?
    a. Unmanaged switch
    b. Managed switch
    c. Modular switch
    d. Desktop switch
    Answer: a. Unmanaged switchpynetlabs+1
14. A switch that supports remote management, monitoring, and configuration via software tools is called a:
    a. Managed switch
    b. Passive switch
    c. Desktop switch
    d. Hub
    Answer: a. Managed switchpynetlabs+1
15. Which device delivers both electrical power and data over a single cable to devices like cameras and Wi-Fi access points?
    a. PoE switch
    b. Hub
    c. Bridge
    d. Repeater
    Answer: a. PoE switchpynetlabs+1
16. Gigabit switches transfer data at what minimum rate?
    a. 1 Gbps
    b. 10 Mbps
    c. 100 Mbps
    d. 1000 Mbps
    Answer: a. 1 Gbpspynetlabs
17. What type of switch is designed for integration into server racks, supporting many simultaneous connections in large networks?
    a. Rack-mounted switch
    b. Desktop switch
    c. Unmanaged switch
    d. Passive switch
    Answer: a. Rack-mounted switchpynetlabs
18. Networking devices that are virtualized and exist within a cloud infrastructure are called:
    a. Virtual network devices
    b. Desktop switches
    c. Remote bridges
    d. PoE injectors
    Answer: a. Virtual network devicesnetwrix
19. Which network device is essential for home or small business Wi-Fi networks to connect wireless devices to the Ethernet infrastructure?
    a. Wireless Access Point
    b. Passive Hub
    c. Rack Switch
    d. NIC
    Answer: a. Wireless Access Pointtechtarget+1
20. What does a modem primarily do in terms of signal?
    a. Converts digital signals to analog and vice versa
    b. Multiplies signals
    c. Routes packets
    d. Repeats signals without changing format
    Answer: a. Converts digital signals to analog and vice versatechtarget+1
21. Hubs work at which layer of the OSI model?
    a. Physical layer
    b. Data Link layer
    c. Network layer
    d. Application layer
    Answer: a. Physical layergeeksforgeeks+1
22. Which device can segment a LAN into multiple collision domains but not broadcast domains?
    a. Switch
    b. Repeater
    c. Hub
    d. Modem
    Answer: a. Switchgeeksforgeeks+1
23. What is the main limitation of hubs compared to switches?
    a. All traffic is broadcast to all ports
    b. Only supports wireless connections
    c. Provides encryption
    d. Can only connect two devices
    Answer: a. All traffic is broadcast to all portsnetwrix
24. A bridge uses which address type to make forwarding decisions?
    a. MAC address
    b. IP address
    c. Port number
    d. VLAN ID
    Answer: a. MAC addressgeeksforgeeks+1
25. Repeaters amplify signals but do not:
    a. Examine or filter traffic
    b. Connect to wireless networks
    c. Support virtual LANs
    d. Dynamically assign IP addresses
    Answer: a. Examine or filter trafficgeeksforgeeks+1
26. Which device creates a single broadcast domain and multiple collision domains?
    a. Switch
    b. Hub
    c. Bridge
    d. Firewall
    Answer: a. Switchnetwrix+1
27. Which device dynamically updates a table of connected hosts to route packets most efficiently in a network?
    a. Router
    b. Bridge
    c. Hub
    d. Repeater
    Answer: a. Routergeeksforgeeks+1
28. What is the primary function of a DHCP server?
    a. Assigning IP addresses dynamically
    b. Resolving domain names
    c. Filtering network traffic
    d. Encrypting data packets
    Answer: a. Assigning IP addresses dynamicallyuninets
29. Which protocol is used for sending email across the internet?
    a. SMTP
    b. SNMP
    c. FTP
    d. HTTP
    Answer: a. SMTPuninets
30. A device that connects different network architectures and can translate between protocols is known as:
    a. Gateway
    b. Modem
    c. NIC
    d. Hub
    Answer: a. Gatewaytechtarget+2
31. Which type of switch balances unmanaged and managed functionality, often providing a simple web interface?
    a. Smart switch
    b. Layer 3 switch
    c. Passive switch
    d. Bridge
    Answer: a. Smart switchnetwrix
32. Which device can filter network traffic based on rules to secure the network perimeter?
    a. Firewall
    b. Switch
    c. Hub
    d. Bridge
    Answer: a. Firewallmotadata+1
33. What type of network device is required to connect a LAN to a WAN?
    a. Router
    b. Switch
    c. Hub
    d. Repeater
    Answer: a. Routertechtarget+2
34. Which device is typically used to extend Wi-Fi coverage in large homes or buildings?
    a. Wireless repeater
    b. Hub
    c. Bridge
    d. Switch
    Answer: a. Wireless repeaternetwrix
35. Which protocol translates between human-friendly names and numeric IP addresses?
    a. DNS
    b. DHCP
    c. SMTP
    d. SNMP
    Answer: a. DNSuninets
36. The function of a Network Interface Card (NIC) does NOT include:
    a. Converting digital to analog signals
    b. Connecting devices to the network
    c. Providing a unique MAC address
    d. Handling data transmission and reception
    Answer: a. Converting digital to analog signalspynetlabs+1
37. Which network device grew in importance in 2025 due to edge computing and AI-driven automation for network traffic management?
    a. Switch
    b. Modem
    c. Edge gateway
    d. Passive hub
    Answer: c. Edge gatewaynetsync
38. What is the key advantage of modular switches in modern data centers?
    a. Expandability and customization
    b. Simple unmanaged configuration
    c. Work at the physical layer only
    d. Analog signal only
    Answer: a. Expandability and customizationpynetlabs
39. A device that provides centralized wireless connectivity for devices within a specific range is a:
    a. Access Point
    b. Router
    c. Bridge
    d. NIC
    Answer: a. Access Pointtechtarget+1
40. Which layer does a bridge operate in the OSI model?
    a. Data Link layer
    b. Physical layer
    c. Network layer
    d. Transport layer
    Answer: a. Data Link layergeeksforgeeks+1
41. Which device can segment a network and provide some level of management such as VLAN support and security?
    a. Managed switch
    b. Hub
    c. Passive switch
    d. Repeater
    Answer: a. Managed switchnetwrix
42. What is the core difference between a wired and wireless NIC?
    a. Medium of network connection
    b. Protocol translation capability
    c. Ability to amplify signals
    d. Route traffic between networks
    Answer: a. Medium of network connectionpynetlabs+1
43. Which technology became standard in advanced wireless networking devices in 2025, supporting up to 46 Gbps data rates?
    a. Wi-Fi 7
    b. Wi-Fi 6
    c. Bluetooth LE
    d. 802.3af
    Answer: a. Wi-Fi 7rfpage
44. Which device is important for controlling and restricting unauthorized access to a network?
    a. Firewall
    b. Modem
    c. Hub
    d. PoE switch
    Answer: a. Firewallmotadata+1
45. Which device divides broadcast domains in a network?
    a. Router
    b. Repeater
    c. Hub
    d. Bridge
    Answer: a. Routergeeksforgeeks+1
46. Which of the following is a feature of desktop switches?
    a. Compact design for small offices
    b. Used for protocol translation
    c. Functions as a modem
    d. Broadens wireless coverage
    Answer: a. Compact design for small officespynetlabs
47. Which device would be used to connect devices in a star topology?
    a. Hub
    b. Modem
    c. NIC
    d. Brouter
    Answer: a. Hubsanfoundry
48. The function of a repeater does NOT include:
    a. Filtering frames
    b. Amplifying signals
    c. Extending network length
    d. Operating at Layer 1
    Answer: a. Filtering framesnetwrix
49. A router uses which table to make forwarding decisions?
    a. Routing table
    b. MAC table
    c. ARP table
    d. Spanning tree table
    Answer: a. Routing tablegeeksforgeeks+1
50. What is the main function of an SNMP-managed device in a network?
    a. Enabling monitoring and management
    b. Providing wireless access
    c. Amplifying analog signals
    d. Translating domain names
    Answer: a. Enabling monitoring and managementmotadata+1

1. https://www.geeksforgeeks.org/computer-networks/network-devices-hub-repeater-bridge-switch-router-gateways/
2. https://blog.netwrix.com/network-devices-explained
3. https://www.techtarget.com/searchnetworking/tip/An-introduction-to-8-types-of-network-devices
4. https://www.motadata.com/it-glossary/network-devices/
5. https://www.pynetlabs.com/network-devices-and-its-various-types/
6. https://www.uninets.com/blog/computer-networks-mcq
7. https://www.netsync.com/2025/08/13/what-to-know-about-new-technology-networking-in-2025/
8. https://www.rfpage.com/top-wireless-technology-trends-in-2022/
9. https://www.sanfoundry.com/network-security-questions-answers-network-hardware/
10. https://www.lepide.com/blog/the-most-common-types-of-network-devices/
11. https://itexamanswers.net/networking-devices-and-initial-configuration-exam-answers.html
12. https://en.wikipedia.org/wiki/Networking_hardware
13. https://www.nwkings.com/top-20-networking-interview-questions
14. https://www.ibm.com/think/topics/networking
15. https://www.auvik.com/franklyit/blog/network-devices/
16. https://www.watelectronics.com/mcq/network-devices/
17. https://www.comparitech.com/net-admin/networking-technologies/
18. https://business.amazon.in/en/discover-more/blog/networking-devices-buying-guide-2021
19. https://www.youtube.com/watch?v=MXr_cyY0BVc
20. https://testbook.com/objective-questions/mcq-on-networking–5eea6a1639140f30f369f551