Within the Flags detail is a flag titled recursion desired. This flag shows whether or not the local DNS should continue to query other DNSs if it is not able to resolve the current query. As DNS is local, it may or may not have the enough information to allow the address to be resolved. If the recursion flag is set, the local <span>DNS will continue to query higher level DNSs until it is able to resolve the address. In short, t</span>he condition is when a flag is raised and it doesn’t have enough <span>information to allow the request.</span>
Answer:
c. recovery time objective
Explanation:
- Recovery time objective (RTO) is the maximum acceptable duration permitted between an unfortunate loss or failure and the restoration of normal operations and services.
- According to the RTO, the systems, applications or operations must be restored within a targeted time period after a disaster, to avoid unacceptable outcomes of the disruption.
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So a business process must be recovered within this period of time.
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It measures how much a failure affects the normal operations, applications and systems and RTO is measures in time units like seconds minutes hours or days.
- In simple words RTO refers to the time you need to restore system, applications and data.
- For instance a 2-hour RTO refers to restore and get operations or services back to running within 2 hours of the service failure or outrage.
The action that an operating system performs is that it facilitates a computer's basic functions between hardware and software.
<h3>What is the purpose of an operating system in a computer?</h3>
An operating system (OS) is known to be a term that is used in computing and it is said to be one which the program, after being started is said to be loaded into the computer using the boot program.
It is one that helps to handle all of the other application programs in a computer.
The application programs is known to also make use of the operating system and as such, The action that an operating system performs is that it facilitates a computer's basic functions between hardware and software.
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Answer:
Swap daemon
Explanation:
Swap daemon manages the physical memory by moving process from physical memory to swap space when more physical memory is needed. The main function of the swap daemon is to monitor processes running on a computer to determine whether or not it requires to be swapped.
The physical memory of a computer system is known as random access memory (RAM).
A random access memory (RAM) can be defined as the internal hardware memory which allows data to be read and written (changed) in a computer.Basically, a random access memory (RAM) is used for temporarily storing data such as software programs, operating system (OS),machine code and working data (data in current use) so that they are easily and rapidly accessible to the central processing unit (CPU).
Additionally, RAM is a volatile memory because any data stored in it would be lost or erased once the computer is turned off. Thus, it can only retain data while the computer is turned on and as such is considered to be a short-term memory.
There are two (2) main types of random access memory (RAM) and these are;
1. Static Random Access Memory (SRAM).
2. Dynamic Random Access Memory (DRAM).
The physical devices that make up a computer system