Junior System Administrator Interview Questions and Answers for Freshers

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

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

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

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