Fundamentals of IT Flashcard 1

Front

Which of the following are the function of a HUB? Recieves data packets from a connected device and transfers a copy to all connected nodes , Recieves data packets, processes them and transfers them onto the device specifically listed in the destination address of the packet, Send data across a telephone network, Stores the address of each computer on the network and uses routing tables to calculate the quickest and shortest path

Back

Recieves data packets from a connected device and transfers a copy to all connected nodes

Answer explanation

In networking, a hub is a device that links multiple computers and devices together. Hubs can also be referred to as repeaters or concentrators, and they serve as the center of a local area network (LAN). In a hub, each connected device is on the same subnet and receives all data sent to the hub.

Tags

IT

Fundamentals of IT

Communication hardware

OCR

Front

A printer is a type of ..................... device

Back

Output

Front

What is the role of Anti Virus software?

Back

Used to locate and delete viruses on a computer system.

Answer explanation

Antivirus software is used to locate and delete viruses on a computer system. The antivirus scans each file on the computer and compares it against a database of known viruses. Files with similar features to viruses in the database are identified and deleted.

There are thousands of known viruses but new ones are created each day by attackers so antivirus software must be regularly updated to keep systems secure.

Other roles of an antivirus:

• Checking all incoming and outgoing emails and their attachments.

• Checking files as they are downloaded.

• Scanning the hard drive for viruses and deleting them.

Front

What is Whistle Blowing?

Back

When a member of staff reveals that the organisation they work for are engaging in unlawful practices.

Front

What is a 'system freeze'?

Back

This occurs after a fatal error when the operating system stops, usually because of a driver software error.