FENWICK AND RAVI Interview Questions and Answers

The tool or command to resume copying data from where it left off in a Linux server is rsync.

• Use rsync command with the --partial and --progress options to resume copying data from where it left off.

• Example: rsync --partial --progress source_directory/ destination_directory/

Isolate infected mail server, scan for virus, remove virus, restore from backup if necessary.

• Isolate infected mail server from network to prevent spread of virus

• Scan mail server with antivirus software to detect and remove virus

• Restore mail server from backup if necessary to ensure no data loss

• Inform mail users about the situation and advise on any necessary actions

• Implement security measures to prevent future infections

Firewalls are security systems that monitor and control incoming and outgoing network traffic. IPS and IDS are intrusion prevention and detection systems that analyze network traffic for malicious activity.

• Firewalls act as a barrier between a trusted internal network and untrusted external networks.

• IPS (Intrusion Prevention System) actively monitors network traffic for potential threats and takes action to prevent them.

• IDS (Intrusion Detection System) passively monitors netwo...read more

A packet travels over two systems by following the OSI model for network communication and the TCP/IP model for internet communication.

• Packet is created at the application layer in the OSI model

• It then moves down through the transport, network, data link, and physical layers in the OSI model

• At the TCP/IP model, the packet moves through the application, transport, internet, and network access layers

• Each layer adds its own header information to the packet

• Example: A user sends a...read more

Electricity is generated at power plants using various sources like coal, natural gas, or renewable energy. It is then transmitted through power lines to homes and businesses. In a computer, electricity is converted into readable form through components like the power supply, motherboard, and processor.

• Electricity is generated at power plants using sources like coal, natural gas, or renewable energy

• It is transmitted through power lines to homes and businesses

• In a computer, el...read more