Answer:
Select commands would return all the rows and columns in the table.
Explanation:
In the database management system, it consists of one or more table. To handle this table it provides the concept of SQL(Structured Query Language). It is a programming language that design, manage, store data into the relational database. It is case sensitive language. In the SQL many commands used for handle table data, it returns all rows and columns from the table.
Syntax of select command can be given as:
Select * from tablename;
Example:
select * from ProductCategory;
returns all the data from the table.
In select command, we will also return select data by using condition
SELECT column1 [, column2, ...]
FROM tablename
WHERE condition
In the conditional clause we use these operators that can be given as:
= Equal, > Greater than, < Less than, >= Greater than equal to, <= Less than equal to, != Not equal to.
Answer:
Option (A) A successful WPS attack has occurred
Explanation:
- WPS stands for Wi-Fi Protected Setup.
- Its a network security protocol in the Wi-Fi which has a vulnerability.
- The connection to the Wi-Fi can be established through the router in four ways. They are
- (a) PIN method
- (b) Push button method
- (c) Near field communication method
- (d) USB Method.
- Out of all the modes to be connected to the network, the PIN method has a flaw in it.
- In this PIN method, an attacker can brute force the PIN (guessing the PIN by some techniques) and gain unauthorized access to the network.
- In the given case in the question, the network administrator finds that multiple unauthorized devices has gained access to the network.
- Option (A) is correct.
- Option (B) ARP Poisoning, (C) botnet and (D) Evil Twin attack are different and so are the wrong options.
Answer:
Explanation:
Computer simulations are helpful because they can handle the computation of a big number of variables, at the same time. The universe is a constantly changing place with many different variables changing other variables. Thus, a computer is ideal to simulate, or predict, real life phenomena because of its processing power.
there's a chance the web server could quite possibly be backed up from all the requests and not being cleaned or updated often
