Scientist Galileo Galilei used the telescope to observe the stars and planets.
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What was the story of Scientist Galileo Galilei?</h3>
Galileo was a natural philosopher, astronomer, and mathematician who made major contributions to the creation of the scientific method and the disciplines of motion, astronomy, and strength of materials.
He also made ground-breaking telescopic discoveries, such as the discovery of Jupiter's four biggest moons.
Hence the correct option is A
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Answer:
C. Wait for about 30 minutes for the system to cool downand try again.
Explanation:
In computer system troubleshooting, there are two areas where problems can arise. They are hardware and software related issues.
software issues are application related like an application not installed properly, malicious software attack, corrupted operating system etc, while hardware has to do with a faulty hardware component in the system.
Example of a hardware related issue, when the active fan is faulty, the computer overheat and eventually shuts down to cool the system. When it cools down, the computer can boot again.
To confirm that the fan is faulty, when it shuts down to cool, wait for some time and try booting the system again. If it comes on, then the fan is bad.
Answer:
Router
Explanation:
A router is a more complex device that usually includes the capability of hubs, bridges and switches. A hub broadcasts data to all devices on a network. This can use a lot of bandwidth as it results in unnecessary data being sent - not all computers might need to receive the data.
Organ viability is determined when a person is declared brain dead, so B.
Answer:
The Transport Layer Security (TLS) protocol adds a layer of security on top of the TCP/IP transport protocols. TLS uses both symmetric encryption and public key encryption for securely sending private data, and adds additional security features, such as authentication and message tampering detection
