d would be your answer....................................
Answer:
B, D, E
Explanation:
B. Apexpages.standardsetcontroller controller=new
apexpages.standardsetcontroller(database.getquerylocator('select id from account'));
D. Apexpages.standardsetcontroller controller = new
apexpages.standardsetcontroller (database.getquerylocator([select id
from account])); and
E. Apexpages.standardsetcontroller controller = new
apexpages.standardsetcontroller (database.query('select id from
account'));
Answer:
The answer is "Option D".
Explanation:
Trojan program is a malicious code that is also known as a virus. It is a rootkit, that aims to infect the computer to hide or obscure an object. These programs are mainly used to download additional content, such as additional pieces of malware, to the infected computer, and other options are wrong that can be defined as follows:
- In option A, It is not correct, this option infects the system.
- In option B, It is used for infects another computer that's why it is incorrect.
- In option C, It is incorrect because it is used in cybersecurity.
Search engines - there was no single way to ask a question


(10101)_2=(21)10


Given : Number (10101)_2(10101)2
To find : What is the value of (10101)_2(10101)2 in decimal number system?
Solution :
Decimal number system is a positional numeral system employing 10 as the base.
Now, to convert it into base 10
Multiply each digit of the following binary by the corresponding power of 2:
(10101)_2(10101)2
=1\times 2^4+0\times 2^3+1\times 2^2+0\times 2^1+1\times 2^0=1×24+0×23+1×22+0×21+1×20
=1\times 16+0\times 8+1\times 4+0\times 2+1\times 1=1×16+0×8+1×4+0×2+1×1
=16+0+4+0+1=16+0+4+0+1
=21=21
Therefore, (10101)_2=(21)_{10}(10101)2=(21)10