Complete Question:
The main disadvantage of using this device is its negative impact on network performance, resulting from the fact that any incoming signal on any of its ports is re-created and sent out on any connected ports.
Group of answer choices
a. Router
b. Switch
c. Bridge
d. Hub
Answer:
d. Hub.
Explanation:
A hub can be defined as a layer one (physical) device used for connecting various network devices such as switches and routers in a local area network (LAN). It comprises of many ports which are used for connecting segments of a local area network (LAN). Hubs are generally considered to be unintelligent because when frames are received at a port, it is then copied to every other connected port on the network.
<em>Hence, the main disadvantage of using a hub is its negative impact on network performance, resulting from the fact that any incoming signal on any of its ports is re-created and sent out on any connected ports.</em>
Answer:
Randy should deploy SSH to allow the sales department to connect to the company network securely over cellular data signal.
Explanation:
Option A is the correct answer because SSH means Secure Shell. And Secure Shell is a cryptographic network protocol for operating network services securely over an unsecured network. Any network service can be secured with SSH
Option B is not correct because VPN mean virtual private network. And what VPN does is to extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.
Option C is not correct because IMEI means International Mobile Equipment Identity and is a number that is use to uniquel identify 3GPP and iDEN mobile phones, as well as some satellite phones.
Option D is not correct because POP3 is an example of email protocol. Post Office Protocol version 3 (POP3) is a standard mail protocol used to receive emails from a remote server to a local email client. POP3 allows you to download email messages on your local computer and read them even when you are offline.
Answer:
i not know mainframe computer there is many use of computer
Answer:
A. Arbitrary code execution
Explanation:
A buffer-overrun, also known as buffer overflow occurs when a programmer makes an error during coding, which could make his system easily susceptible to attacks from a hacker. The root cause of this problem is an overflow of data in a buffer, and programs that are written in C and C+ + are more likely to be affected by this problem. When a buffer-overrun occurs, it would most likely lead to arbitrary code execution.
Arbitrary code execution is an uncontrolled and unrestricted coding by the attacker which alters the original coding. The attacker could input more information into the coding, which alters the original information and which would make the application porous and accessible by just anyone. It is important that programmers run regular tests on their programs, so as to detect any coding errors.
From January 2005 through July 2017, approximately 853 million electronic data records in the US were breached.
This allowed the attackers to take control over people's personal data, such as their various credit card numbers, and other important data, as well as their addresses, etc. The cyber police, as well as the regular police have been working hard to stop this from happening, but the hackers are very strong and smart.
