Answer:
B) Keyloggers
Explanation:
Keyloggers are malicious softwares used by hackers to secretly record and capture keystrokes on a person's computer when they are using it. This enables the hackers steal sensitive data like passwords, bank details, address etc. Keyloggers are one of the oldest forms of cyber threats used by cybercriminals to spy on unsuspecting users. Keyloggers can be sent through links to access. computer o directly installed with access to the computer.
Liam a would need to contact the software developer. So the answer is B
Answer:
In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically "0" (zero) and "1" (one). The base-2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit, or binary digit.
Explanation: and the key to reading binary is separating the code into groups of usually 8 digits and knowing that each 1 or 0 represents a 1,2,4,8,16,32,64,128, ect. from the right to the left. the numbers are easy to remember because they start at 1 and then are multiplied by 2 every time.
Answer:
b) Bounded Waiting
Explanation:
int currentThread = 1;
bool thread1Access = true;
bool thread2Access = true;
thread1 { thread2 {
While (true) {
While (true)
{
while(thread2Access == true)
{
while(thread1Access == true)
{
If (currentThread == 2) {
If (currentThread == 1)
{
thread1Access = false; thread2Access = false;
While (currentThread == 2);
While (currentThread == 1);
thread1Access = true; thread2Access = true;
} }
/* start of critical section */ /* start of critical section */
currentThread = 2 currentThread = 1
… ...
/* end of critical section */ /* end of critical section */
thread1Access = false; thread2Access = false;
… ...
} }
} }
} }
It can be seen that in all the instances, both threads are programmed to share same resource at the same time, and hence this is the bounded waiting. For Mutual exclusion, two threads cannot share one resource at one time. They must share simultaneously. Also there should be no deadlock. For Progress each thread should have exclusive access to all the resources. Thus its definitely the not the Progress. And hence its Bounded waiting.
Answer:
Explanation:
In MATLAB, the following command:
Performs the element by elemet division of A and B. This comand is called Right-array division.
So, in your case, we could divide A by B element by element, only using fully-vectorised code (ie. no loops), with the following code:
![a = [2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 33 34 35 36 37 38 39 40];b = [1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 43 45 47 49 50 54 59 60];C = a./b](https://tex.z-dn.net/?f=a%20%3D%20%5B2%204%206%208%2010%2012%2014%2016%2018%2020%2022%2024%2026%2028%2030%2032%2033%2034%2035%2036%2037%2038%2039%2040%5D%3B%3C%2Fp%3E%3Cp%3Eb%20%3D%20%5B1%203%205%207%209%2011%2013%2015%2017%2019%2021%2023%2025%2027%2029%2031%2033%2043%2045%2047%2049%2050%2054%2059%2060%5D%3B%3C%2Fp%3E%3Cp%3EC%20%3D%20a.%2Fb)
;
C would be the element by element division of A and B, with no loops.
