Networking Basics Questions and Answers

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Networking Basics Questions with Answers introduce the core concepts of data communication, protocols, and network topologies. Understanding IP addressing, routing, and OSI layers is fundamental for technical placements and IT certification exams such as Cisco CCNA, Infosys, and IBM assessments. These programming questions and answers with explanations provide clarity on how networks function in real-world scenarios. From Ethernet fundamentals to TCP/IP models, mastering these topics ensures a solid foundation for both academic and professional success. Practice free networking MCQs online and download PDFs for thorough preparation.

Networking Basics

Showing 10 of 33 questions

11. Which protocol does DHCP use at the Transport layer?

  • IP
  • TCP
  • UDP
  • ARP
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12. Which command is used to determine if an IP access list is enabled on a particular interface?

  • show access-lists
  • show interface
  • show ip interface
  • show interface access-lists
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13. Where is a hub specified in the OSI model?

  • Session layer
  • Physical layer
  • Data Link layer
  • Application layer
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14. What does the passive command provide to dynamic routing protocols?

  • Stops an interface from sending or receiving periodic dynamic updates.
  • Stops an interface from sending periodic dynamic updates but not from receiving updates.
  • Stops the router from receiving any dynamic updates.
  • Stops the router from sending any dynamic updates.
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15. Which protocol is used to send a destination network unknown message back to originating hosts?

  • TCP
  • ARP
  • ICMP
  • BootP
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16. How often are BPDUs sent from a layer 2 device?

  • Never
  • Every 2 seconds
  • Every 10 minutes
  • Every 30 seconds
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17. How many broadcast domains are created when you segment a network with a 12-port switch?

  • 1
  • 2
  • 5
  • 12
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18. What does the command routerA(config)#line cons 0 allow you to perform next?

  • Set the Telnet password.
  • Shut down the router.
  • Set your console password.
  • Disable console connections.
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19. Which router command allows you to view the entire contents of all access lists?

  • show all access-lists
  • show access-lists
  • show ip interface
  • show interface
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20. Which class of IP address has the most host addresses available by default?

  • A
  • B
  • C
  • A and B
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