Are You Preparing for Network Engineer Interview Questions

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We are Updating Frequently asked questions for network engineering job interview very soon.

Network is the system in which the different computers are interconnected. Network Engineers design, implement and maintain the company’s network infrastructure. They support employees by ensuring network systems operations are smooth, effective and secure. Make sure you prepare well on those technical subjects listed below. Don’t think that you know them already, actually spend time refreshing your knowledge to be and look more confident:

• IP Addressing- Make sure you know subnetting (without a subnet calculator!).  Know the value of every bit in each each Octet. Know subnet masks and what their slashed notation is and CIDR. Get familiar with wild card masks.
• Memorize administrative distances of all routing protocols.
• Review the simple stuff, like 3way handshakes in tcp, setting up hrsp, ip helpers.
• Review Spanning Tree – Know what a root bridge is, know what VTP does, be sure you can explain the differences with RSTP.
• Review VLANs and be able to explain what a vlan is.

 Probable Question - Coming Soon With Explanation.

•  What is the subnet mask 10.2.1.3/22?
• Define the criteria for best path selection of a router?
• What is Active Directory?
• What is client/server network?
• What is the administrative distance of EIGRP, eBGP, iBGP?
• Can we use OSPF without backbone area?
• What is your favorite routing Protocol?
• What networking protocols are you mostly familiar with?
• What are the layers of the OSI reference model?
• What are proxy servers and how do they protect computer networks?
• What are the pros and cons of a private IP address?
• Describe common software problems that lead to network defects. How do you resolve them?
• What’s the use of encryption on a network?
• In EIGRP, what is a Stuck in Active route?
• In OSPF, what is a totaly stubby area?  What does Area Zero do?
• Which internal routing protocol would use if you needed to route between Cisco and non-Cisco equipment?
• Explain what a 3-way handshake is in TCP?
• What is a VLAN trunking protocol?
• What is the different between 802.1q and ISL?
• Explain what is an Ether-Channel?
• What do you need to do to setup a VTP domain?
• What is Spanning Tree used for?
• What is a root bridge and why do you need one?
• What is needed on a router interface to allow DHCP to function on a subnet?
• Describe what a stateful firewall is?

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