Junior System Administrator

Junior System Administrator Interview Questions and Answers

Updated 1 Feb 2025
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Q1. How would you check slowness on a workstation what measures will you take ?

Ans.

To check slowness on a workstation, I would perform various diagnostic tests and optimizations.

  • Check CPU and memory usage using Task Manager or Resource Monitor

  • Scan for malware and viruses using antivirus software

  • Check for disk fragmentation and optimize disk usage

  • Update operating system and drivers to the latest versions

  • Disable unnecessary startup programs and services

  • Check network connectivity and speed

Q2. Do you have any experience on sccm and windows OS migration?

Ans.

Yes, I have experience in SCCM and Windows OS migration.

  • I have worked with SCCM to deploy software updates and patches.

  • I have also used SCCM to deploy new operating systems to computers.

  • I am familiar with the process of creating and deploying task sequences for OS migration.

  • I have experience with Windows 7 to Windows 10 migration.

  • I have also worked on Windows Server migration using SCCM.

  • I am comfortable with troubleshooting issues related to SCCM and OS migration.

Junior System Administrator Interview Questions and Answers for Freshers

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Q3. What is the difference between switch, hub and router?

Ans.

Switch forwards data to specific devices based on MAC addresses, hub broadcasts data to all devices, router connects different networks.

  • Switch operates at layer 2 of the OSI model, hub operates at layer 1, and router operates at layer 3.

  • Switch forwards data only to the intended device based on MAC addresses, while hub broadcasts data to all connected devices.

  • Router connects different networks and routes data between them based on IP addresses.

  • Switches are more efficient than ...read more

Q4. What does modem and router stand for ?

Ans.

Modem stands for modulator-demodulator and router stands for a device that forwards data packets between computer networks.

  • Modem converts digital data from a computer into analog signals for transmission over telephone lines

  • Router is a networking device that forwards data packets between computer networks

  • Examples: Modem - DSL modem, Cable modem; Router - Wireless router, Ethernet router

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Q5. What is ec2 in detail.

Ans.

EC2 is a web service that provides resizable compute capacity in the cloud.

  • EC2 stands for Elastic Compute Cloud.

  • It allows users to rent virtual servers on which they can run their own applications.

  • EC2 instances can be easily scaled up or down based on demand.

  • Users have full control over their instances, including the choice of operating system, networking, and security settings.

  • EC2 provides a wide range of instance types optimized for different use cases, such as general-purp...read more

Q6. Safety for important human

Ans.

Safety for important human

  • Ensure proper security measures are in place

  • Regularly update and maintain systems

  • Train employees on safe practices

  • Have a disaster recovery plan in place

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Q7. What is DORA process ?

Ans.

DORA process stands for Discovery, Optimization, Remediation, and Automation in IT operations.

  • Discovery involves identifying the current state of IT systems and processes.

  • Optimization focuses on improving efficiency and performance.

  • Remediation addresses any issues or problems found during the discovery phase.

  • Automation aims to automate repetitive tasks to streamline operations.

  • Example: Using DORA process to enhance network monitoring and troubleshooting.

Q8. What is 405 error means ?

Ans.

405 error means method not allowed.

  • 405 error occurs when the requested method is not allowed for the specified resource.

  • It is typically returned when trying to use a method (such as POST or PUT) that is not supported by the server for the requested URL.

  • For example, trying to POST data to a URL that only allows GET requests would result in a 405 error.

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