1. What is the primary function of a router in a network?
- To connect multiple devices within the same network segment
- To forward data packets between different networks
- To provide IP addresses to devices
- To filter traffic based on IP addresses
Networking Basics and OSI Model MCQs 30 Questions
Basic Networking Concepts: Introduction to computer networks and their primary functions.
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2. Which protocol is used for secure remote login to a network device?
- FTP
- Telnet
- HTTP
- SSH
3. What does the acronym 'LAN' stand for?
- Local Area Network
- Long Area Network
- Light Area Network
- Large Area Network
4. What is the default subnet mask for a Class C IP address?
- 255.0.0.0
- 255.255.0.0
- 255.255.255.0
- 255.255.255.255
5. Which device operates at the Data Link layer of the OSI model?
- Router
- Hub
- Repeater
- Switch
6. What is the primary purpose of the Domain Name System (DNS)?
- To assign IP addresses to devices
- To route data packets between networks
- To translate domain names into IP addresses
- To encrypt network communications
7. Which protocol is used to retrieve email from a mail server?
- SMTP
- FTP
- SNMP
- POP3
8. What does the term 'bandwidth' refer to in networking?
- The physical width of a network cable
- The delay between data packets
- The frequency of the network signal
- The amount of data that can be transmitted in a fixed amount of time
9. Which topology connects all devices in a network to a central hub?
- Star topology
- Ring topology
- Mesh topology
- Bus topology
10. Which protocol is used to send emails?
- IMAP
- SMTP
- HTTP
- POP3
11. What is a MAC address?
- An IP address assigned to a computer
- A protocol used for accessing web servers
- A type of network topology
- A unique identifier assigned to network interfaces for communications on the physical network segment
12. What does the acronym 'WAN' stand for?
- Wireless Area Network
- Wired Area Network
- World Area Network
- Wide Area Network
13. Which device is used to connect two different networks and direct packets between them?
- Switch
- Router
- Bridge
- Hub
14. What is the purpose of a firewall in a network?
- To connect multiple devices within the same network
- To assign IP addresses to devices
- To boost the signal strength in a network
- To prevent unauthorized access to or from a private network
15. Which protocol is used for transferring files over the Internet?
- FTP
- SNMP
- IMAP
- SMTP
16. What is the function of the Network layer in the OSI model?
- Data encryption and decryption
- Physical addressing
- Path determination and logical addressing
- Session management
17. Which of the following is a private IP address?
- 192.168.1.1
- 172.16.0.1
- 10.0.0.1
- 8.8.8.8
18. What does the acronym 'IP' stand for in networking?
- Internal Protocol
- Internet Protocol
- Interconnected Protocol
- Interface Protocol
19. Which protocol is used to dynamically assign IP addresses to devices on a network?
- DNS
- FTP
- HTTP
- DHCP
20. What is the primary function of the Physical layer in the OSI model?
- Data encryption
- Logical addressing
- Session management
- Transmission of raw bit streams over a physical medium
21. Which of the following is a characteristic of a peer-to-peer network?
- Each computer can act as both a client and a server
- Dedicated server
- High cost to implement
- Centralized administration
22. What is the purpose of the Address Resolution Protocol (ARP)?
- To map domain names to IP addresses
- To assign IP addresses to devices
- To route data packets between networks
- To map IP addresses to MAC addresses
23. Which layer of the OSI model is responsible for error detection and correction?
- Physical Layer
- Network Layer
- Transport Layer
- Data Link Layer
24. What does the acronym 'VPN' stand for?
- Virtual Public Network
- Virtual Protected Network
- Virtual Private Network
- Virtual Personal Network
25. Which protocol is used to securely browse the web?
- HTTPS
- FTP
- Telnet
- HTTP
26. What is the function of a subnet mask in IP addressing?
- To identify the network and host portions of an IP address
- To translate domain names into IP addresses
- To encrypt data packets
- To assign IP addresses to devices
27. What is the purpose of NAT (Network Address Translation)?
- To assign unique IP addresses to all devices in a network
- To encrypt network data
- To resolve domain names to IP addresses
- To convert private IP addresses to public IP addresses
28. Which of the following is a function of a switch in a network?
- To assign IP addresses
- To filter traffic based on IP addresses
- To forward data frames based on MAC addresses
- To provide wireless access
29. What is the primary function of a DNS server?
- To assign IP addresses to devices
- To manage network traffic
- To provide wireless internet access
- To convert domain names to IP addresses
30. Which of the following is a common use of a proxy server in a network?
- To route data packets between networks
- To block access to certain websites
- To connect two different networks
- To assign IP addresses to devices