How to Prepare for NETWORK ENGINEER INTERVIEW QUESTIONS
Are you thinking about getting a job as a Network Engineer? Are you considering leaving your present position and getting a new job at a new company? Has it been a while since you've interviewed? If you've answered yes to any of these questions then this is the post for you!
TIPS FOR PREPARING FOR THE INTERVIEW
Study - Before you go to you Interview, open the books up and give yourself a general review of networking.
Update your Resume - Read your resume and update it. Please prepare your Resume yourself. don't copy from any others. You must know your strengths and weakness very well.
Watch out for Social Networks - Many employers are getting very smart and will search on your name. Be sure if they find your facebook or twitter page there isn't anything there that you wouldn't want them to see.
Google yourself - Search for yourself on Google and see what you find. You would be amazed an what might pop up. Make sure nothing derogatory shows up.
Get Certified - One of the best things to do to prove you know what your talking about is a certification. This gives a new employer an easy way to understand your knowledge level.
Update LinkedIn Profile :Update your LinkedIn profile at the same time you updating your resume.Make sure your resume and LinkedIn profile shows same clients and duration for all projects you have done.
Preparing for NETWORK ENGINEER INTERVIEW QUESTIONS
Make sure you have enough knowledge in below categories. For more explanation click on the links
Make sure you have enough knowledge in below categories. For more explanation click on the links
- IP Addressing- Make sure you know subnetting (without a subnet calculator!).
- Memorize administrative distances of all routing protocols.
- Review the simple stuff, like 3way handshakes in tcp, setting up hrsp, ip helpers, and vlans.
- Review Spanning Tree - Know what a root bridge is, know what VTP does
- Review VLANs and be able to explain what a vlan is.
- Have a detail idea about Dynamic protocols like OSPF and EIGRP and BGP
- General Concepts of Networking
- Passive Interfaces for RIP,EIGRP and OSPF
- Cisco Three layer Hierarchical model
- Cisco Discovery protocol (CDP)
- OSPF
- Describe OSPF,Different types of routers in OSPF,DR/BDR election
- How OSPF establishes neighbor relation
- DR /BDR Election
- OSPF Network Types
- OSPF LSA and Area types
- OSPF Authentication
- Multicast address of OSPF in IPv4 n IPV6
- If OSPF router is stucked in each stage what the problem is and how to troubleshoot it
EIGRP
- EIGRP notes with interview questions
- Explain EIGRP summarization
- Explain EIGRP Authentication
- Explain EIGRP stub types
- Explain EIGRP Passive interface
- Eigrp unicast neighbor
- What is "Stuck in Active"
- What is graceful shutdown and restart
STP
ACLs
- What is access list.Explain difference between named and numbered access list
- Write an example if you want to allow and to deny…
- List of Well-known port numbers
QOS
- What is that
- What is the diff b/w L2 and L3 QoS
- How it works
Network:
- OSI Model
- Draw the typical network diagram you have to deal with,explain how it works and What part of it you are responsible
- firewall, what is that, how it works, how it is diff from ACLs
- What problems with the network you had had and how you solved it.
- What are the ways to troubleshoot the network, techniques, commands
- network security, ways to achieve it
- Wireless networks
Switching:
Vlan
Vlan
- VLANs and InterVLans
- VTP and Different modes
- Difference between End-to-end VLANs and Local VLANs
- Troubleshooting VLAN Problems
- What is QinQ ( 802.1Q tunneling ) ?
- Private VLAN
- What is Mult VLAN port
- Static and dynamic VlAN
- Vlan Interview Q&A
- How a L2 switch works with broadcast, unicast, multicast, known/unknown traffic
- HSRP
- VRRP
- GLBP
- Protected ports
- What is MAC flooding attack
- What is DAI
- What is VLAN Hopping
- What is Cisco IP SLA
- What is UDLD
- What is DTP
Put yourself in their shoes, what will they need from you? Review the job description and target those things specific to the job your interviewing for .. Good Luck!
These are excellent tips!! I found it very useful. Great contribution
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ReplyDeleteI do interviews for my company on occasion. Almost everything mentioned from this link is accurate. I ask and expect answers on 90% of the things listed from this during the technical interview process (which is where I'm brought in, as I'm an engineer and my Manager asked me to do the technical interview).
ReplyDeleteMost of this is standard fare, but the questions about administrative distances and PDU destination addresses are a little absurd. When I'm asked more than just one or two generic trivia questions in an interview, I start questioning the employer.
ReplyDelete@ FriendlyDespot
ReplyDeleteI wouldn't call it a direct red flag. Put yourself in their shoes. They could have hired someone who was able to hit two general questions then been promptly burned by him after they put him in front of live gear. Or they want to make sure you already have a very very good working knowledge of BGP. I mean, sure the job posting said "Good understanding of implementing and maintaining of BGP." but how can they really determine that if you're just answering a few generic questions?
Now, if you're applying for a NE spot and they're asking you desktop support or group policy questions... Okay, maybe that's a flag.
thanks for give more valuable inform
ReplyDeletecould u advise me on how to start the career on network, i'm graduating as a telecommunication engineer next month.
ReplyDeleteWhich exam do i start with, i learnt we have CCNA, CCNA SP, CCNA SPO CCNA security etc.??????????
Pls, your immediate response will be appreciated.
Hope this link will helps you http://www.ciscopress.com/articles/article.asp?p=2036575
DeleteFor any higher cisco certifications CCNA is the base.You can only certify CCNA (Security or voice) or CCNP (any) after getting CCNA
I came here from Linkedin.Good work
ReplyDeleteToday I presented my icdn2 test and pass, thanks to people like you that post amazing notes about the cisco world.
ReplyDeleteI just wanted to say thank you, you are awesome.
also I wanted to ask you, do you think the ccna data center is worth it?, I think Im going for that one before moving to ccnp in r&s
Thanks for your help!
Congrats for your success.I heard having data center experience is good for getting job.
DeleteAfter CCNA i directly attended CCNP R&S course.Completed CCNP switching exam and now preparing for CCNP Routing.
Nice Post.
ReplyDeleteIf you have a CCNA, I'll expect you to know the following:
Tell me about the OSI model. Describe what would happen to a packet starting at layer 7, working its way down the stack and back up again on the opposite side.
How does DHCP work, or if you're unsure of that, describe to me the difference between TCP and UDP. What protocol does a ping fall into? How does TCP windowing work? Why have a windowing mechanism? Which does voice and video fit into? Why?
My customer wants to know which routing protocol they should implement. Tell me your favorite and compare it to another routing protocol. Where would either fit into a network that you designed? Does one have a place at all?
How many bits in an IPv6 address? How does IPv6 compare to IPv4? Why are we running out of addresses in the IPv4 space? Do you think that will ever happen in the IPv6 space? Why aren't we moving to using IPv6 more often?
How does an access list work? Why is there an implicit deny at the end of one when I look at some devices?
How do you work with multiple projects on your plate at once? If you have a project manager navigating those projects for you, how do you best utilize that person to help you make progress in an efficient manner.
Tell me about your customer service background, how do you go above and beyond what any other engineer could do for me?
How do you handle a contract and out of scope projects? Do you think we should give the customer more than what they pay for?
Your questions are awesome and helpful....In before interviews even am get screwed bcoz this kind of questions asked by interviewer but i need a answers sir..it will helpful for my future F-F interviews...
DeleteShabeer, excellent job mate. For having worked in this industry for quite long, I've stumbled upon some of these basic questions and have lost my way ... silly but its true especially after you've been in a job for more than 5 years without having to brush up on those basics. Every things counts in interview I appreciate that now. Good luck to all.
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ReplyDeleteThe list you mentioned is very helpful and common in used in every interview.Thanks for share this important blog.
ReplyDeleteGood work mate...Keep it up..:)
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ReplyDeleteits very helpful for all...thnx for sharing this....great work....
ReplyDeleteNice Job done Man!...... Salute ! .....Keep posting :)
ReplyDelete1. What is Ethernet?
ReplyDelete2. OSI Layer
3. IP Address Classes
4. IP and Ethernet Frame Structure
5. Scenario based on TTL and Collision & Broadcast Domain
6. What is Ping and questions based on Ping responses
7. DHCP
8. Diff b/w ping and traceroute
9. Protocols Port Number and AD
10. What is Autonomous System?
11. VLAN and Router on Stick (Inter Vlan)
12. VTP , Trunking
13. ARP and Scenario based on ARP
14. Diff b/w L3 Switches and Routers?
15. Routing and Switching Protocols
16. RIP Loop avoidance Methods.
17. Diff b/w RIP V1 and V2.
18. Passive interface in RIP
19. EiGRP Tables , Metrics , Packets , States
20. OSPF
21. DR & BDR Election
22. LSA,States and Areas
23. STP- States ,Timers, Scenario based on STP
24. Root gaurd,BPDU Gaurd,BPDU Filter,
25. Scenario based on ACL , TTL
26. Passive interface in RIP, EIGRP and OSPF
27. Diff b/w EIGRP and OSPF
28. VPN Technologies
29. Why OSPF Stuck in 2 ways, Exstart states?
30. VLAN tagging protocols?
31. What is speed of Ethernet / fast Ethernet in Full duplex?
Hi shabeer I want to buy CCNA note ...please let me know the process on price as well ....waqarsaiyed@yahoo.com
ReplyDeleteI have replied in your email
DeletePlease can u provide the password? The files are passowrd protected.
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I have mailed you the updated link
DeleteHI Shabeer,
ReplyDeleteI am Rakesh from Bangalore. I've gone through your sysnet blog & overhelmed with the way you explained.
Can you please let me know how to buy CCNA & CCNP notes ?
Please drop a mail at shabeeribm @ gmail.com .i will send you the procedure to buy it
DeleteDear Shabeer,
ReplyDeleteYour notes are really nice and helpful.
I would like to purchase it.
I am staying in Banglore (India). Please tell me how I can purchase?
Please drop me a mail at shabeeribm@gmail,com i will send you the details
DeleteDear Shabeer,
ReplyDeleteThe notes are very helpful. i would like to purchase it . Can you please tell me how i can purchase it ?
Dear Shabeer,
ReplyDeleteThe notes are very helpful. i would like to purchase it . Can you please tell me how i can purchase it ?
Please drop a mail at shabeeribm@gmail.com i will send you account details for transferring money
DeleteHi Shabeer,
ReplyDeleteAm from India i would like to buy your CCNA & CCNP R&S complete notes pdf, Could you please share me the process how to buy.
Drop me a mail at shabeeribm@gmail.com i will send you the alternative payment option
DeleteThanks a lot..
ReplyDeleteVery very Help Full Tips and Questions .
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I have forwarded option to your email. Please check it
DeleteDear Shabeer,
ReplyDeleteThe notes of CCNA from sysnet was very helping for attending interviews, could you suggest how could i get complete notes.
if you are from India please drop a mail to shabeeribm@gmail.com or you can buy via paypal
DeleteIf u are d System Administrator what would u do in dis case. If a virus or worm is masking in the group of IP which u are to allow into ur network, while doing deep inspection u found out a virus as been masking in ur IP. If u are d System Administrator what would u do in dis case
ReplyDeleteThis is a good read to help you during interviews. I take these tips to the heart. Find More Interview Tips For freshers here - Visit Here
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Hi Shabeer First of all thanks for sharing such a information knowledge here. And Can you send me the note for CCNA and CCNP(R & S) and security
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ReplyDeletehai shabeer could you please tell me what is the interview process for a fresher on networking job. I did ccna course and also mcse
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ReplyDeletecan you send me ccna notes .jazzgahlot75@gmail.com
and i also want to give ccna R&S v3.0 exam what to do?plzz tell me
You can buy notes via paypal link mentioned in the blog
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