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NetWo1 Reviewer-Prelim
Contributed by: Fernandez
  • 1. What is a computer network?
A) A software used to browse the internet
B) A collection of unrelated computers
C) A group of devices connected to share resources
D) A system for storing files offline
  • 2. Which of the following is NOT a key component of a network?
A) Protocols
B) Devices
C) Operating System
D) Medium
  • 3. What is the primary advantage of networking?
A) Limits internet access
B) Increases communication and resource sharing
C) Increases software costs
D) Reduces productivity
  • 4. Which of the following is an example of resource sharing?
A) Storing documents on a local computer
B) Using a USB drive to transfer files
C) Printing from multiple devices using a single printer
D) Copying files manually from one device to another
  • 5. Which protocol defines the rules for internet communication?
A) TCP/IP
B) HTML
C) JPEG
D) USB
  • 6. Which device assigns dynamic IP addresses?
A) DHCP Server
B) DNS Server
C) Router
D) Firewall
  • 7. How many bits are in an IPv4 address?
A) 128
B) 64
C) 16
D) 32
  • 8. What is the primary difference between IPv4 and IPv6?
A) IPv6 only works on wireless networks
B) IPv4 is faster than IPv6
C) IPv4 supports encryption while IPv6 does not
D) IPv6 supports larger address space than IPv4
  • 9. Which of the following is a private IP address range?
A) 200.0.0.1
B) 203.0.113.10
C) 8.8.8.8
D) 192.168.1.1
  • 10. What is the main function of NAT (Network Address Translation)?
A) Assigns MAC addresses
B) Encrypts network traffic
C) Converts private IP addresses to public IP addresses
D) Blocks unauthorized devices
  • 11. What does a firewall do?
A) Blocks unauthorized network access
B) Assigns MAC addresses
C) Converts IP addresses
D) Boosts Wi-Fi signals
  • 12. Which organization defines internet protocols?
A) IEEE
B) W3C
C) IETF
D) ISO
  • 13. What is MAC spoofing?
A) Changing an IP address
B) Encrypting network data
C) Blocking a device from the network
D) Faking a device’s MAC address
  • 14. What is the main advantage of a VPN?
A) Lower hardware costs
B) Eliminates IP addressing
C) Faster network speeds
D) Secure, encrypted communication
  • 15. What is the purpose of a proxy server?
A) Manages Bluetooth connections
B) Acts as an intermediary for network requests
C) Converts digital signals to analog
D) Assigns MAC addresses
  • 16. Which device forwards data based on MAC addresses?
A) Switch
B) Router
C) Modem
D) Hub
  • 17. What is the purpose of an access point?
A) Extends wireless network coverage
B) Encrypts data
C) Assigns IP addresses
D) Manages network security
  • 18. What does a router do?
A) Directs data between networks
B) Converts data into signals
C) Assigns MAC addresses
D) Encrypts network traffic
  • 19. Which device is commonly used to prevent unauthorized access to a network?
A) Firewall
B) Modem
C) Hub
D) Repeater
  • 20. What is a modem used for?
A) Filtering unauthorized traffic
B) Storing network data
C) Converting digital data to analog and vice versa
D) Assigning MAC addresses
  • 21. Which topology connects all devices to a central hub?
A) Mesh
B) Bus
C) Star
D) Ring
  • 22. Which topology has a single point of failure in the central cable?
A) Star
B) Mesh
C) Bus
D) Hybrid
  • 23. Which topology is best for redundancy?
A) Bus
B) Star
C) Ring
D) Mesh
  • 24. Which topology forms a loop where each device is connected to two others?
A) Mesh
B) Ring
C) Star
D) Bus
  • 25. What is a hybrid topology?
A) A topology used in data centers only
B) A combination of two or more topologies
C) A network without wired connections
D) A network that does not use a central hub
  • 26. What is the main function of a firewall?
A) Storing network data
B) Increasing network speed
C) Filtering network traffic
D) Assigning MAC addresses
  • 27. Which of the following can slow down a network?
A) Using fiber optics
B) High latency
C) Strong security
D) High bandwidth
  • 28. Which device reduces congestion by forwarding packets to specific devices?
A) Switch
B) Router
C) Hub
D) Repeater
  • 29. What does QoS (Quality of Service) do in a network?
A) Converts network signals
B) Encrypts all data
C) Assigns static IP addresses
D) Prioritizes certain types of traffic
  • 30. Which factor affects internet speed the most?
A) MAC address
B) Signal strength
C) Device name
D) File type
  • 31. What does OSI stand for?
A) Operational Systems Infrastructure
B) Open Systems Interconnection
C) Open Systems Internet
D) Online Security Integration
  • 32. How many layers are in the OSI model?
A) 7
B) 4
C) 6
D) 5
  • 33. Which layer is responsible for the physical transmission of data?
A) Physical
B) Network
C) Transport
D) Data Link
  • 34. Which layer handles routing of data between different networks?
A) Transport
B) Data Link
C) Application
D) Network
  • 35. What is the primary function of the OSI model?
A) To encrypt all network data
B) To replace all other networking models
C) To increase internet speed
D) To provide standardization for network communication
  • 36. Which layer ensures reliable communication and manages flow control?
A) Network
B) Physical
C) Transport
D) Data Link
  • 37. What is the main function of the Data Link Layer?
A) Assigning IP addresses
B) Encrypting network traffic
C) MAC addressing and error detection
D) Managing end-user applications
  • 38. Which OSI layer manages encryption and data formatting?
A) Network
B) Transport
C) Application
D) Presentation
  • 39. What is the role of the Session Layer?
A) Establishes, maintains, and terminates communication sessions
B) Assigns MAC addresses to devices
C) Controls routing of packets
D) Encrypts and compresses data
  • 40. Which layer interacts directly with end-user applications?
A) Physical
B) Transport
C) Network
D) Application
  • 41. Which protocol is used for routing at the Network Layer?
A) SMTP
B) FTP
C) HTTP
D) IP
  • 42. Which protocol is used at the Transport Layer for reliable communication?
A) UDP
B) ARP
C) ICMP
D) TCP
  • 43. Which of the following protocols is used to resolve IP addresses to MAC addresses?
A) FTP
B) ARP
C) HTTP
D) DNS
  • 44. Which layer of the OSI model is responsible for breaking data into packets?
A) Data Link
B) Transport
C) Application
D) Network
  • 45. Which of the following is a real-world application of the OSI model?
A) Designing graphics for applications
B) Managing database queries
C) Diagnosing network issues
D) Creating new programming languages
  • 46. A network that spans a larger area than a LAN, typically a city or a large campus.
A) MAN
B) VPN
C) PAN
D) LAN
E) WAN
  • 47. A network that connects devices within a limited geographic area, such as a home, office, or school.
A) VPN
B) PAN
C) MAN
D) LAN
E) WAN
  • 48. A network that spans large geographical areas, such as countries or continents.
A) MAN
B) VPN
C) LAN
D) WAN
E) PAN
  • 49. Connects devices within a short range (Bluetooth devices, personal hotspots).
A) VPN
B) LAN
C) WAN
D) MAN
E) PAN
  • 50. Creates a secure, encrypted connection over public networks for private data transmission.
A) LAN
B) VPN
C) MAN
D) WAN
E) PAN
  • 51. A simple networking device that connects multiple devices in a network but does not have the intelligence of a switch. It broadcasts incoming data to all connected devices.
A) Access Point
B) Router
C) Modem
D) Hubs
E) Switches
  • 52. This address is used to identify devices on a local network (like LANs) and ensure that data is sent to the correct destination within the network.
A) IP Address
B) MAC Address
C) Lan Address
  • 53. Develops global technical standards, including for networking
A) ISO
B) IEEE
C) W3C
D) IETF
  • 54. Defines technical standards, especially for network hardware and wireless communication.
A) IEEE
B) W3C
C) ISO
D) IETF
  • 55. A small chunk of data sent over the network. Large files are broken into multiple packets for transmission.
A) Information
B) Data
C) Packets
D) Data Packets
  • 56. A device that allows wireless devices to connect to a wired network via Wi-Fi or other wireless standards.
A) Switches
B) Repeater
C) Router
D) Modem
E) Access Point
  • 57. What is the largest example of a WAN.
A) Internet
B) SpaceX
C) Google
D) YouTube
  • 58. A type of copper cabling used in networking. It consists of pairs of wires twisted together to reduce electromagnetic interference (EMI).
A) Fiber Optic Cables
B) Shielded Twisted Pair (STP)
C) Unshielded Twisted Pair (UTP)
  • 59. similar to UTP but with an additional layer of shielding around the twisted pairs to further reduce interference.
A) Fiber Optic Cables
B) Unshielded Twisted Pair (UTP)
C) Shielded Twisted Pair (STP)
  • 60. This use light to transmit data, rather than electrical signals. They offer significantly higher bandwidth and longer transmission distances than copper cables.
A) Unshielded Twisted Pair (UTP)
B) Fiber Optic Cables
C) Shielded Twisted Pair (STP)
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