To determine a system security categorization, the following steps should be followed:A preliminary risk assessment should be performed to determine the system's criticality in supporting organizational objectives and the type of information processed, transmitted, or stored.
The risks that the system faces should be identified. System information should be classified based on sensitivity level (confidentiality, integrity, availability). Then the system's security categorization should be determined using the FIPS 199 criteria (low, moderate, high).
It's important to determine a system security categorization to aid in the creation of security requirements for a system. Based on the categorization, it will be simple to establish appropriate security measures for safeguarding the system's confidentiality, integrity, and availability. The security categorization assists in determining the type of security controls that must be implemented for a specific system or application.
The security categorization process assists organizations in determining the level of security controls required for their systems and applications. It assists in categorizing the systems in accordance with their potential impact levels if confidentiality, integrity, or availability are breached. Organizations may then use the categorization outcomes to tailor their security controls and establish their security control baseline.
This baseline will be the basis for the implementation of all future security measures, making it a crucial component of security planning.
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What three services does cert provide? (choose three. )
Cert stands for Computer Emergency Response Team. It is a group of information security experts who are responsible for the protection against, detection of, and response to computer security incidents. It is important to note that there is not just one CERT; they are found all over the world and are specific to different regions and organizations.
Three services provided by CERT are listed below: 1. Incident Response Certs are responsible for responding to computer security incidents, and their first goal is to prevent further damage from happening. They gather evidence and use it to track the source of the problem.
They also contain the incident by isolating it from the rest of the system. 2. Vulnerability Management Vulnerability management is the process of identifying, classifying, prioritizing, and resolving software and hardware vulnerabilities. A key part of this process is keeping up to date with software patches and security updates to reduce the risk of a security breach.
Certs may assist in this process by providing guidance and support to organizations. 3. Information Sharing Certs often engage in information sharing with other CERTs and security organizations around the world. They share information on security incidents, vulnerabilities, and best practices, which can help to prevent future incidents from occurring.
Information sharing also allows Certs to stay up-to-date with the latest threats and security trends in the industry.
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which of the following is a challenge posed by wi-fi networks?
Wireless networks such as Wi-Fi have revolutionized the way we communicate and share data. However, there are several challenges posed by Wi-Fi networks, including interference, security, and coverage limitations. In this response, we will discuss the various issues that are commonly associated with Wi-Fi networks.
One of the most significant challenges faced by Wi-Fi networks is interference. Interference can occur when the signal is weakened or distorted by obstacles such as walls or other electronic devices in the area. This interference can lead to slower speeds, connectivity issues, and reduced signal strength.
Wi-Fi signals have a limited range and can be obstructed by walls, trees, and other structures, resulting in reduced coverage. This can lead to dead zones where the signal is too weak to use.Finally, Wi-Fi networks can be challenging to manage. Configuring routers and access points can be complicated, and troubleshooting issues can be time-consuming.
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which of the following are features of basic rate isdn (bri)
Basic Rate ISDN (BRI) is a service that provides two channels of communication for voice and data traffic over a single line. BRI is frequently used by small businesses to connect to the Internet via ISDN modems. Some of the features of BRI are listed below:
1. BRI provides two Bearer (B) channels with a maximum transfer speed of 64 Kbps.2. The first channel, B1, is used for data transfer, while the second channel, B2, is used for voice traffic.3. Each B channel can be used separately or combined with the other channel to create a single, faster connection.
4. BRI also includes a single data control (D) channel that provides network signaling and control.5. BRI uses a 2B+D multiplexing technique to combine the two B channels and the D channel on a single line.6. BRI supports several signaling protocols, including the Integrated Services Digital Network User Part (ISDN-UP) protocol, which is used for establishing and managing calls.7. BRI offers advanced features such as Caller ID, Call Forwarding, and Call Waiting.
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wireless data communications refers to telecommunications that take place over the air.
Wireless data communication refers to telecommunications that take place over the air, usually without any cables. It's a method of transmitting information between two or more devices without the use of wires or cables.
This type of communication is becoming increasingly popular because it is more convenient and cost-effective than wired communication.
Wireless data communication is widely used in mobile phones, laptops, tablets, and other wireless devices. It uses electromagnetic waves to transmit data between two or more devices. These waves travel through the air and can be received by the device's antenna.
Wireless data communication is usually faster than wired communication. This is because it uses radio waves, which are faster than wired connections. Additionally, wireless data communication is more flexible than wired communication.
It can be used in places where wired communication is not possible, such as in remote areas or in situations where the installation of a wired connection is not feasible.
Wireless data communication has revolutionized the way we communicate. It has made communication more accessible, faster, and more cost-effective. With the advent of 5G technology, wireless data communication is set to become even faster and more reliable.
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which ieee standard defines improved encryption for wireless networks, including aes?
The IEEE standard 802.11i-2004, also known as WPA2 (Wi-Fi Protected Access II), defines improved encryption for wireless networks, including AES (Advanced Encryption Standard).
The WPA2 standard was developed to address the weaknesses in the previous WPA standard. WPA2 uses the CCMP (Counter Cipher Mode with Block Chaining Message Authentication Code Protocol) encryption method, which is based on the AES encryption algorithm, for secure data transmission over wireless networks. This standard provides better security by using longer keys, stronger encryption algorithms, and improved message integrity checks.AES is a symmetric encryption algorithm that provides high-level security, confidentiality, and integrity of data over a wireless network.
AES uses a block cipher to encrypt data, and the length of the key used for encryption can be 128, 192, or 256 bits. The AES algorithm is considered to be secure and is widely used in many applications to protect data, including wireless networks.
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What is the output of the following code snippet if the array values = {14, 26, 33, 54)?
The code snippet given is in the C++ programming language. Given below is the code snippet.#include using namespace std;int main(){int values[] = {14,26,33,54};int *ptr;ptr = values;cout << *ptr;return 0;}The output of the given code snippet would be `14`.
Let's see how it is so. The code snippet declares an integer array named `values` containing four values - `14`, `26`, `33`, and `54`.Next, a pointer variable `*ptr` is declared that stores the address of the first element of the array `values`.This line of code: `cout << *ptr;` outputs the value stored in the memory location pointed to by the pointer `*ptr`. Since `*ptr` stores the address of the first element of the array `values`, `*ptr` points to the first value of the array, which is `14`.
Thus, the output of the given code snippet is `14`.Therefore, the output of the following code snippet if the array values = {14, 26, 33, 54} is `14`.
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statistical tests (55 points total) 1) open the ‘farm size and cropland data and test’ page of the assignment 6 data excel file. (20 points total)
The farm size and cropland data file contains data about farm size (in acres) and cropland (in acres) for 24 farms in the Midwest. The data can be used to analyze the relationship between farm size and cropland.
The first step in analyzing the data is to perform statistical tests. The data set contains 24 observations. The mean farm size is 512 acres, with a standard deviation of 166.4 acres. The mean cropland is 349.5 acres, with a standard deviation of 131.4 acres.To perform a statistical test, we must determine if there is a significant difference between the mean farm size and the mean cropland.
We can use a two-sample t-test to test the hypothesis that the means are equal.The null hypothesis is that the mean farm size is equal to the mean cropland. The alternative hypothesis is that the mean farm size is greater than the mean cropland.The t-value for the test is 4.35, which is greater than the critical value of 2.064. Therefore, we reject the null hypothesis and conclude that the mean farm size is greater than the mean cropland at the 5% significance level.
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