{"id":1100,"date":"2020-11-17T16:04:00","date_gmt":"2020-11-17T16:04:00","guid":{"rendered":"http:\/\/bytereign.com\/?p=1100"},"modified":"2025-04-29T08:51:40","modified_gmt":"2025-04-29T07:51:40","slug":"core-networking-interview-questions","status":"publish","type":"post","link":"https:\/\/bytereign.com\/?p=1100","title":{"rendered":"Core Networking Interview Questions"},"content":{"rendered":"\t\t
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Here’s a list of essential fundamental core networking interview questions. Great for improving your skills and getting ready for interviews, this collection is a helpful resource for mastering networking basics.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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  1. Define Network?<\/span><\/li>
  2. What are the different types of a network? Explain each briefly.<\/span><\/li>
  3. What is a gateway?<\/span><\/li>
  4. What is a Protocol?<\/span><\/li>
  5. Why subnetting is required?<\/span><\/li>
  6. What is Routing?<\/span><\/li>
  7. Explain difference between Router & Switch?<\/span><\/li>
  8. What are the types of MAC Addresses?<\/span><\/li>
  9. What is the difference between Private IP and Public IP?<\/span><\/li>
  10. What is the range of private & public ip address?<\/span><\/li>
  11. What is the difference between broadcast domain and collision domain?<\/span><\/li>
  12. What is ping? for what purpose we use ping?<\/span><\/li>
  13. Define Unicasting, Multicasting and Broadcasting and Any casting?<\/span><\/li>
  14. What are the differences between static ip addressing and dynamic ip addressing?<\/span><\/li>
  15. What is the difference between the Internet, Intranet, and Extranet?<\/span><\/li>
  16. What is AS (Autonomous System)?<\/span><\/li>
  17. What is AD (Administrative Distance)?<\/span><\/li>
  18. Differentiate full-duplex from half-duplex?<\/span><\/li>
  19. List the layers of OSI?<\/span><\/li>
  20. Routers work at which OSI layer?<\/span><\/li>
  21. Switches work at which OSI layer?<\/span><\/li>
  22. What is the difference between TCP and UDP?<\/span><\/li>
  23. In which layer term “Frames” is used?<\/span><\/li>
  24. In which layer term “Packets” is used?<\/span><\/li>
  25. In which layer term “Segments” is used?<\/span><\/li>
  26. What is CRC?<\/span><\/li>
  27. What is the way to establish a TCP connection?<\/span><\/li>
  28. What is the difference between RIPV1 & RIPV2?<\/span><\/li>
  29. What is the administrative distance of RIP?<\/span><\/li>
  30. What is Route Poisoning & Split Horizon in RIP?<\/span><\/li>
  31. How do we configure RIP?<\/span><\/li>
  32. What is EIGRP?<\/span><\/li>
  33. Why EIGRP is called hybrid protocol?<\/span><\/li>
  34. What are the different tables in EIGRP?<\/span><\/li>
  35. What are the different packets in EIGRP?<\/span><\/li>
  36. What is meant by active and passive states in EIGRP?<\/span><\/li>
  37. What is the different K-values used in EIGRP?<\/span><\/li>
  38. What is successor?<\/span><\/li>
  39. What are different route types in EIGRP?<\/span><\/li>
  40. How do we configure EIGRP?<\/span><\/li>
  41. What is OSPF?<\/span><\/li>
  42. What are area types?<\/span><\/li>
  43. What Is Backbone Area?<\/span><\/li>
  44. Explain Area Border Router(ABR)?<\/span><\/li>
  45. What are LSA types?<\/span><\/li>
  46. What Is the Default Hello Interval?<\/span><\/li>
  47. What are different neighbor states in OSPF?<\/span><\/li>
  48. Briefly explain functioning and working of different OSPF?<\/span><\/li>
  49. What are the different OSPF network types?<\/span><\/li>
  50. Name tables which OSPF maintain?<\/span><\/li>
  51. How OSPF DR & BDR Is Elected?<\/span><\/li>
  52. What Parameters Must Match for Two Routers to Become Neighbors?<\/span><\/li>
  53. How Do We Configure OSPF Routing Protocol?<\/span><\/li>
  54. What is the layer 2 loop?<\/span><\/li>
  55. What is Spanning tree protocol?<\/span><\/li>
  56. How STP works?<\/span><\/li>
  57. Define selection criteria of STP root bridge?<\/span><\/li>
  58. How does STP maintain a loop-free network?<\/span><\/li>
  59. What is the basics function of BPDU?<\/span><\/li>
  60. What are the different types of BPDU?<\/span><\/li>
  61. What is the STP blocking state?<\/span><\/li>
  62. What is the STP Forwarding state?<\/span><\/li>
  63. What is Difference between STP and RSTP?<\/span><\/li>
  64. Which command enables RSTP on a switch?<\/span><\/li>
  65. What is the method of selecting a root port?<\/span><\/li>
  66. What are the different states of ports in STP?<\/span><\/li>
  67. Explain different types of STP Timers?<\/span><\/li>
  68. How do we configure STP?<\/span><\/li>
  69. Which switching technology reduces the size of a broadcast domain?<\/span><\/li>
  70. What are the benefits of creating VLANs?<\/span><\/li>
  71. What type of traffic goes through native VLAN?<\/span><\/li>
  72. What is difference between Trunk and Access mode?<\/span><\/li>
  73. What is Inter-Vlan Routing?<\/span><\/li>
  74. What are the different VLAN Frame tagging techniques?<\/span><\/li>
  75. What is QinQ?<\/span><\/li>
  76. Give the commands to create VLANs?<\/span><\/li>
  77. What is VTP?<\/span><\/li>
  78. What is the benefit of VTP?<\/span><\/li>
  79. What are the VLAN Trunking Protocol (VTP) Modes?<\/span><\/li>
  80. What is VTP Transparent Mode?<\/span><\/li>
  81. What is a VTP configuration revision number?<\/span><\/li>
  82. What is VTP Pruning?<\/span><\/li>
  83. What is a VPN?<\/span><\/li>
  84. Explain DHCP briefly?<\/span><\/li>
  85. Briefly describe NAT<\/span><\/li>
  86. What are firewalls?<\/span><\/li>
  87. What is traceroute?<\/span><\/li>
  88. What is ICMP?<\/span><\/li>
  89. What are IGPs and EGPs and why are they different?<\/span><\/li>
  90. What is the purpose of BGP?<\/span><\/li>
  91. Name several path attributes and their function.<\/span><\/li>
  92. What is the global routing table?<\/span><\/li>
  93. What is the Port Number of BGP?<\/span><\/li>
  94. What is the BGP path selection criteria?<\/span><\/li>
  95. What is route reflector and why it is required?<\/span><\/li>
  96. What is synchronization in BGP?<\/span><\/li>
  97. What is Finite State Machine (FSM)?<\/span><\/li>
  98. what is difference between access list and prefix list?<\/span><\/li>
  99. What is MPLS?<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

    Here’s a list of essential fundamental core networking interview questions. Great for improving your skills and getting ready for interviews, this collection<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[1,49],"tags":[83,77,78],"class_list":["post-1100","post","type-post","status-publish","format-standard","hentry","category-blog","category-network-engineering","tag-core-networking","tag-routing","tag-switching"],"_links":{"self":[{"href":"https:\/\/bytereign.com\/index.php?rest_route=\/wp\/v2\/posts\/1100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bytereign.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bytereign.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bytereign.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bytereign.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1100"}],"version-history":[{"count":97,"href":"https:\/\/bytereign.com\/index.php?rest_route=\/wp\/v2\/posts\/1100\/revisions"}],"predecessor-version":[{"id":2484,"href":"https:\/\/bytereign.com\/index.php?rest_route=\/wp\/v2\/posts\/1100\/revisions\/2484"}],"wp:attachment":[{"href":"https:\/\/bytereign.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bytereign.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bytereign.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}