Attackers frequently use ACK scans to circumvent a firewall or other filtering tools. During a NULL scan, all packet flags are enabled. The most recent versions of Nessus Server and Client are compatible with Windows, Mac OS X, FreeBSD, and the vast majority of Linux variants.
<h3>What is ack scan ?</h3>
- ACK scans are used to identify hosts or ports that have been blocked or are resistant to other types of scanning. An attacker uses TCP ACK segments to learn about firewall or ACL configuration.
- Attackers probe our router or send unsolicited SYN, ACK, and FIN requests to specific UDP/TCP ports.
- TCP ACK Scan sends an ACK message to the target port to determine whether or not it is filtered.
- On unfiltered ports, a RST reply packet will be sent for both open and closed ports. Filtered ports will either generate no response or generate an ICMP reply packet with an unreachable destination.
- The TCP ACK scanning technique attempts to determine whether a port is filtered by using packets with the ACK flag set.
To learn more about ask scan refer to:
brainly.com/question/13055134
#SPJ4
A 2d array (i.e. 2 dimensional array) represents its elements in rows and columns
<h3>The program in Java</h3>
The method in Java, where comments are used to explain each line is as follows
//This defines the method
public static int diagSum(int[][] myArray) {
//This initializes sum to 0
int sum = 0;
//This iterates through each row of the array
for (int i = 0; i < myArray.length; i++) {
//This calculates the sum of the diagonals
sum+=myArray[i][i];
}
//This returns the sum
return sum;
}
Read more about methods at:
brainly.com/question/15969952
Answer:
Serial data access will go through all the data by order until the target data is reached
Explanation:
This is opposite of direct data access which immediately finds the desired
data
Answer:
The Security Account Manager
Explanation:
The Security Account Manager (SAM), This is a database file found in Windows Operating Systems.... Windows XP, Windows Vista, Windows 7, 8.1 and 10 that stores users' passwords. It can be used to authenticate local and remote users. It is an important and vital component of how Windows stores passwords locally on the computer.
Answer:
It started working in July 16,1995. Mr Jeff Benzos was the founder of Amazon. An is located in 410 Terry Ave N, Seattle 98109,WA.
Explanation: