Answer: b. My name is BobBob
Explanation:
- $foo = 'Bob'; // Assigns foo variable the value Bob
- $bar = $foo; // Assigns the value of foo to bar
- $bar = "My name is $bar"; //changes the $bar this is the way to include variables directly in the string.
- print $bar; // this prints My name is and moves to the variable $bar which prints the value of $bar which is the value of $foo i.e. Bob
- print $foo; // prints another Bob
Answer:
LED is the correct answer for the following question.
Explanation:
LED is a display that is used in the Laptop screen which is a type of blacklight technology. Blacklight technology is a technology that is used to increase readability when the light is low.
An LED display is used in a modern laptop. It is a flat panel display. Its brightness is so high and allows a user to use it in the presence of the sunlight. It is designed in 1962 for the first time.
The above question asked about a blacklight technology that is used in a laptop device which is the LED display used in a modern laptop. Hence the answer is LED
Answer:
Option (A) is the right answer.
Explanation:
According to the scenario, the user system is giving the error of invalid certificate while other users on the same network do not report any error, which means that there is some problem in a particular system.
Date and time can also be one of the main cause of this error because wrong date and time creates problem in surfing many websites by giving certificate error.
Hence the most appropriate answer is option (A).
While other option are wrong because of the following reasons:
- UEFI boot mode is mainly used in booting the operating system and has no connection with network.
- Logon time is also wrong because if the problem is with the login server, it can not give certificate error.
- User access control is also not correct because it is used to control the access of the user.