TCP Padding. Firewall question BGP. Basic knowledge of subnets. .
Tac Engineer Interview Questions
174 tac engineer interview questions shared by candidates
First Round: Technical (C,C++,OS,Microprocessor related questions). Quants and Aptitude (General Quants questions). Second Round: General Discussion Topic - Effect of Diversity in a Company Third Round: Technical Interview - Asked questions based on your Resume. Asked in detail about the Projects, how they were implemented, design procedures, technologies used, and what was my part in the Project. He went on to say that TAC was highly customer oriented and tried to put me off by saying that I wasn't meant for this job ( Maybe, the Projects in my Resume tipped him off about my Software Development Skills). I handled it by talking about the impact of customer input and satisfaction, and how R&D was meaningless without customer input first. Fourth Round: HR Round Tell me about yourself. Do you have any questions ?
Phone questions included basic questions about networking, proxies and dns, they asked about a problematic situation i faced in the past and how did I resolve it. In person interview consisted of 2 role play scenarios in which I was to troubleshoot the client network. The objective was to use soft skills to manage the situation, get the required information and based on this information provide a problem description, conclusions if possible and finally provide an action plan. This was followed by crunching 25-30 page documentation within an hour of preparation time and doing a little presentation on the topic. Finally, I had both a managers questioning as well as technical questioning. Questions ranged from explaining OSPF, comparing it to EIGRP, STP Loop prevention mechanisms ...
Explain ARP packet flow? different types of ARP
About the TCP/ip model in depth
1- Tell me about yourself. 2- Network classes? 3- What is Subetting? 4- What is subnet mask? 5- Different types of network and different type of topology? 6-OSI model? how is it different from TCP/IP model? 7- What is DNS? 8- Explain tcp vs udp communication. 9- Difference between Hub and Switch?
Introduce yourself. what is a subnet mask? what is ACL? Describe OSI Model.
How do you rebuild this phone?
Networking basics- routing protocols, TCP- UDP, OSI Model, 3 way handshake, port and protocol number, ARP and other protocols etc., email flow, packet flow Security:- Firewall, IDS-IPS, Encryption, IPSec and SSL VPN, Cryptography, DDoS attack, Phishing, CIA triangle. Commands:- ipconfig, tracert, ping, nets at,ns lookup, One scenario based question from routing and firewall
Please explain option field in the TCP header?
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