# Suganya Interview Preparation

## Introduction
I have 13 years of experience in enterprise IT environment. I was with TCS for the last 11 years of my career.

I started my career as IT support engineer and handled incidents related to OS and client side applications. Later I moved to server administration role.

## Windows Administration
Active directory, DHCP and DNS server administration
Windows server and client system preparation (OS deployment, network configuration, domain joining)
OS updates, application deployment and patch management through SCCM

## Linux Administration
Handled RHEL, CentOS and Ubuntu servers.
Linux Virtual machine creation
Network and firewall configuration
Setup system monitoring
Application deployment and package management
Troubleshooting reported incidents or issues.

## Monitoring
Monitoring of Server systems for availability and resource utilization
Monitoring of applications for performance parameters
Integration of monitoring systems with ticekting tool
Open source monitoring tool Zabbix

## Documentation and Training
Documented the technical procedures and processes
Trained and onboarded new joinees to the team

## General Questions
#### Strength
Persistence in my effort and won't give up easily
Perform consistently in delivering the assigned task
Take initiative in assessing the existing process and improving it

#### Weakness
At times, I take a bit longer time to thoroughly analyze gathered data to begin on new things.

#### Where do you want to be in another 2 years? What is your goal?
I want to be a senior systems engineer and to lead techical team.

## STAR Scenarios
[Sample Questions](https://novoresume.com/career-blog/star-interview-questions)
#### What is your greatest achievement?
Zabbix migration from 3.4 to 4.0 in centos

1. Tell me about a time when you were faced with a challenging situation. How did you solve it?
* During Zabbix migration from 3.4 to 4.0 in centOS, we took the backup of Zabbix - server, agent and MySQL conf files & PHP files. We got an error when we tried to upgrade using the yum upgrade command "No packages found to update". We found that there was an issue with cache repository files. We cleared the cache using the "yum clean all" command. Then we upgraded to the latest version successfully.

3. Do you usually set goals at work? If yes, could you give me an example of a goal you had and how you achieved it?
* I set goals to complete the assigned task within SLA and Identify the area where we can deploy .
* I assigned with a task of AD user and group addition where i did it using Python script.

5. Give me an example of a time you made a mistake at work.
* Once i created a user mailbox with wrong OU so user was getting different location emails. Then we raised a CR to change the correct OU
7. Have you ever faced conflict with a coworker? How did you resolve the situation?
* When my coworker's task, reassigned to me without any information (progress status of the task)about it. This event made conflict between us. We both had one-on-one discussion about this incident and completed the task.
9. Tell me about a time when you handled the pressure well.
* When POS service was down in one machine, no one received alert about POS service down eventually it made revenue loss for customer due to transaction failure.
* All the respective team were connected in conference and I was involved in troubleshooting this issue and found that the issue was with port so it got resolved by changing firewall rule.

11. Was there a time when you had to be very strategic in order to meet a goal?
12. Give me an example of a situation when you showed initiative and took charge of a situation.
* I took an initiative to deploy New tax software using SCCM, I prepared documentation for plan, deployment and user guidance. Completed the task.

14. Tell me about a time when you went above and beyond your duties for a job or task.
* Apart from my regular duties, I was involved in the POC of in-house system management software, for which I collaborated with other teams who were giving support for this software to collect more details about its features and challenges. Later we compared this data with SCOM, SCCM, Nagios, and Solarwinds and submitted the report for management decisions.
16. Did you ever have to correct one of your superiors when they were wrong? How did you approach that situation?
17. Have you ever had to work under a tight deadline?
18. How do you deal with coworkers that don’t cooperate or can’t contribute enough?
19. Tell me about a time when a client was asking for the impossible. How did you explain and communicate this to them?
20. Give me an example of a time when you didn’t meet a client’s expectations. How did you deal with the situation?
* A business unit wants us to deploy the Tableau Desktop to over 50 users which we did it through SCCM but then at first launch the user has to click to activate and enter their license. we don't have a volume license. Each user has their own license.So we sent an email with documentaion about how to launch and activate their license.
* But the wanted us to do automate it with license details so user doesn't have to do anything on it.
21. Is there a situation you think you could’ve handled better or differently?
22. How do you adapt to sudden changes in the workplace? Could you give me an example?
23. What was the first job you ever had? Do you remember how you adapted and learned the ropes?
* My first was level1 desktop support,
24. Tell me about a time when you had to think on your feet in order to deal with a situation.
25. Sometimes employers put too much on their employees' plates. Was there a time when you were overwhelmed with work? How did you handle the situation?
26. Tell me about a time when you had the liberty to be creative with your work. Was it exciting or difficult for you?
27. Give me an example of a time when you and your team had opposing views on an issue. How did you persuade them to go with your decision?

#### DHCP Failover feature deployment
DHCP failover deployed on Windows 2016 server to ensure Disaster recovery
`Prior to enabling failover feature:`
DC1: 50% of the scope
DC2: 50% of the scope
In case of DC1 failure, only 50% of the scope at DC2 available for assigning IP address to Clients. Few clients did not get IP and have network access issues
`After enabling failover feature:`
Both DCs own 100% of the scope and were in sync about the address lease.

#### Logrotate issue
Application Issue faced and server was down and not reachable by SSH.
Server console was accessed through iLO to analyze the issue.
Found the disk was almost full.
On verification, it was found that log files were not rotated hence the disk size was fully utilized.
logrotate service was down. The configuration file found to have wrong configuration lines. The configuration was amended and old logs were manually purged to resolve the issue.

#### Application issues due to NTP client not in sync
An application which authenticates clients based on certificates was down. Client authentication was failing and the clients were not able to update data to the server.
On troubleshooting, it was found that the ntp client in the server was not synchronizing time from the NTP server. Firewall rules were mistakenly enabled on the outbound direction. Firewall rules were supposed to be enabled only on the inbound direction.
Firewall rules issue was corrected to resolve the issues.