Answer:
a. 118.20.210.254
Explanation:
Here are the few characteristics of Class A:
First bit of the first octet of class A is 0.
This class has 8 bits for network and 24 bits for hosts.
The default sub-net mask for class A IP address is 255.0.0.0
Lets see if the first bit of first octet of 118.20.210.254 address is 0.
118 in binary (8 bits) can be represented as : 1110110
To complete 8 bits add a 0 to the left.
01110110
First bit of the first octet of class A is 0 So this is class A address.
For option b the first octet is : 183 in the form of bits = 10110111 So it is not class A address
For option c the first octet is 215 in the form of bits = 11010111 So it is not class A address
For option d the first octet is 255 in the form of bits = 11111111. The first bit of first octet is not 0 so it is also not class A address.
Answer:
A.
Explanation:
The malware that replicates itself and can infect the entire system is a worm.
A worm is a type of malware that gets self-activated and replicated. This worm spreads rapidly over the computer system and can corrupt all the files and the entire system.
A worm is a standalone application and does not require action from humans.
Therefore, option A is correct.
In programming they know it as a String which is a sequence of characters that are composed of literal constants or some kind of variables. A sting is any finite sequence of characters. every single string has its own lenght and this is one of the most important characteristics of them. Strings are essential to communicate information from the program to the user.
Question 1: Best way is option 1, Worst way is option 4.
Question 2: Best way is option 4, Worst way is option 3
I think the answer to your question is opt. D
