Answer:
Your computer now has the IP address of that website cached, and no longer has to lookup the IP address of that domain name. The TTL of the first query is bigger than the TTL of the second query as less time was taken to execute the request.
Explanation:
On the first request to the website, the computer needs to contact other machines to find the record of the IP address.
On the second request, the computer already has the IP address and can use that to connect.
Answer:
Explanation:
Given
Required
The product using distributive property
Express 16 as 10 + 6
Distributive property states that:
So, the expression becomes
Evaluate each product
Janelle should have clicked Save & Close to close the contact.
Answer: Memory hierarchy is the hierarchy that is created on the basis of the response time of different memories. The performance obtained by the memory helps in creating a computer storage space in distinguished form. The factors considered for the creating of the hierarchy structure are usually response time, storage capacity, complexity etc.
Usage of different kind of memories take place due to different kind of requirements from the system which cannot be fulfilled using one memory device.The requirement is based on saving time, decreasing complexity , improving performance etc.Example of requirements can be like some functions and files do not require much space , some might require quick accessing,etc.
Thus hierarchy of any particular system is in the form of fast to slow order from registers,cache memory, Random access memory(RAM) and secondary memory.
BIOS instructs the computer on how to preform basic functions such as booting and keyboard control. It is also used to identify and configure the hardware in a computer
