10+ IT System Administrator Interview Questions and Answers

Yes, I have experience managing entire IT infrastructures independently.

• I have successfully managed the IT infrastructure at my previous job single-handedly

• I am proficient in various IT systems and tools that enable me to handle the entire infrastructure

• I have a strong problem-solving skills and can troubleshoot issues efficiently

My strategy would involve upgrading hardware, implementing automation tools, enhancing security measures, and providing continuous training for the team.

• Upgrade hardware to improve performance and reliability

• Implement automation tools to streamline processes and reduce manual tasks

• Enhance security measures to protect against cyber threats

• Provide continuous training for the team to stay updated with latest technologies and best practices

I work with a variety of servers and network switches depending on the company's infrastructure.

• I have experience with Cisco, HP, and Dell switches.

• I have worked with Windows Server, Linux, and VMware ESXi.

• I am familiar with Active Directory, DNS, DHCP, and Exchange Server.

• I have worked with SAN and NAS storage solutions.

• I am comfortable with configuring firewalls and VPNs.

• I have experience with cloud-based services such as AWS and Azure.

Restricting users' computers can be done through group policies, firewalls, and endpoint security solutions.

• Implement group policies to control user access to certain features or applications

• Use firewalls to block certain websites or restrict internet access

• Deploy endpoint security solutions to prevent unauthorized software installations or access to sensitive data

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices.

• DHCP is used to simplify network administration by automatically assigning IP addresses to devices.

• It eliminates the need for manual IP address configuration.

• DHCP scopes define a range of IP addresses that can be assigned to devices on a network.

• There are three types of DHCP scopes: 1) Global scope, 2) Scope options, and 3) Super scope.

• Global scope ...read more

A server is a computer or system that provides resources, services, and data to other computers or clients over a network.

• A server is a powerful computer that is dedicated to managing network resources.

• It provides services such as file storage, email, web hosting, database management, and more.

• Servers can be physical machines or virtual machines.

• They are designed to be reliable, secure, and scalable.

• Examples of servers include web servers like Apache or Nginx, database server...read more

Exchange Online is a cloud-based email hosting service provided by Microsoft as part of Office 365.

• Cloud-based email hosting service

• Part of Office 365 suite

• Allows users to access emails, contacts, and calendars from anywhere

A protocol is a set of rules that governs the communications between computers on a network.

• A protocol is a set of rules that governs the communications between computers on a network.

• It defines the format and sequence of messages exchanged between devices.

• Examples of protocols include TCP/IP, HTTP, FTP, and SMTP.

Antivirus is a software program designed to detect, prevent, and remove malicious software from a computer or network.

• Antivirus software scans files and programs for known viruses and malware.

• It can also monitor network traffic and block suspicious activity.

• Antivirus programs need to be regularly updated to stay effective against new threats.

• Examples of popular antivirus software include Norton, McAfee, and Avast.

OTDR stands for Optical Time Domain Reflectometer.

• OTDR is a device used to test and troubleshoot fiber optic networks.

• It sends a pulse of light into the fiber and measures the time and intensity of the reflected signal.

• This information is used to locate faults and determine the quality of the fiber.

• OTDRs are commonly used by network technicians and engineers.

• Example brands of OTDRs include Fluke Networks, EXFO, and Anritsu.

The conference level can be checked by accessing the settings or preferences of the conference software or platform.

• Access the settings or preferences of the conference software or platform

• Look for an option related to conference level or access level

• Check if there are different levels such as participant, presenter, moderator, etc.

CCTV stands for Closed Circuit Television.

• CCTV is a video surveillance system used for security purposes.

• It consists of cameras, monitors, and recording devices.

• CCTV footage can be used as evidence in legal proceedings.

• CCTV is commonly used in public places like airports, banks, and shopping malls.