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:
A traffic controller is basically a system design to regulate traffic in a controlled manner with a set of traffic rules to follow so as to ensure public safety .
The main functions of a traffic light controller are listed below:
- To direct and regulate vehicular and pedestrian traffic
- To ensure safety of construction workers, emergency response team and public in general in order to avoid accidents
- These also uses CCTV and other monitoring system to manage flow of traffic and suggestion concerned with traffic congestion. These are provided by local or state authorities.
- To ensure smooth traffic flow in order to save time and chaos.
Answer: True
Explanation:
Yes, the given statement is true, as the bastion host basically require two individual firewall that connect with the internal network and perimeter network by using the perimeter configuration.
Perimeter network basically isolate the the bastion host from the internal network. Bastion host is the serve as the host that connect with the external world. As, perimeter network is one of the type of the firewall network system.
Therefore, the internal network and the perimeter network basically connect with the firewall by using bastion host.
Technology helps business professionals, keep more organized, communicate better, and effectively keeps businesses secure. Technology helps keep employee information and business paper<span> work more organized using</span>computers<span> and </span>software<span>; while making it easier to communicate with employee's using e-mail and memo's. With better alarm systems, camera's and online banking, security measures are endless. </span>
In cyber security, an exploit is a way attackers take advantage of certain vulnerabilities and gain malicious access to systems. There are very many types of exploits that exist in the cyber security world. However, I will mention those ones most commonly used.
DoS attacks – The denial of service attacks is very common. Hackers will gain access to servers and send so many packet requests at the same time. The servers become overwhelmed due to too much memory allocation and the huge amount of traffic ends up crashing the servers.
Unauthorized access – When an attacker has an illegal access to host machines
<u>Application Exploitation</u>
Code injection – This exploit can be used to maliciously inject invalid code into an application program or software and as a result change how the program behaves.
Cross-site scripting – Enable hackers inject malicious scripts on a website of a client. Once they have gained access, they will escalate their privileges and have more access to the site.
Clickjacking – A type of attack that tricks unknown victims into clicking links of a web page they believe are legitimate and end up revealing confidential information of themselves.