Answer:
Hold the CPU fan so that it won't spin and blow this with compressed air.
Explanation:
While cleaning the computer system from the inner side then we have to follow some steps.
- Firstly, shut down the system properly and remove it from the power supply.
- Then, open the cabinet of the computer system.
- Then, clean the internal parts of the system through simple air pressure and hold the CPU fan during that time to avoid spinning.
- Clear the dirt layer using the can of compressed air over the cabinet fans.
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
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Answer:
The following are code in the Java Programming Language.
//define boolean type function
boolean isReverse(int ar[], int b[])
{
//declare integer type variable
int x;
//set the for loop
for (x=0; x < ar.length && ar[x] == b[ar.length-1-x]; x++);
return x == ar.length;
}
Explanation:
<u>The following are the description of the code</u>.
In the above code that is written in the Java Programming Language, we define the boolean data type function that is 'is Reverse()' and pass two array integer data type arguments that is 'ar', 'b' in the then, declare integer data type variable that is 'x'. Set the for loop that the boolean type value is true or false.
Answer:
def analyze_text(sentence):
count = 0
e_count = 0
for s in sentence:
s = s.lower()
if s.isalpha():
count += 1
if s == "e":
e_count += 1
return "The text contains " + str(count) + " alphabetic characters, of which " + str(e_count) + " (" + str(e_count*100/count) + "%) are ‘e’."
Explanation:
Create a function called analyze_text takes a string, sentence
Initialize the count and e_count variables as 0
Create a for loop that iterates through the sentence
Inside the loop, convert all letters to lowercase using lower() function. Check each character. If a character is a letter, increment the count by 1. If a character is "e", increment the e_count by 1.
Return the count and e_count in required format
