Answer:
Three (3)
Explanation:
Explanation of the three basic terms here - Knowledge consistency checker, hops and domain controller - will give a clearer answer and explanation to the question as follows;
<em>Domain controller</em> : is a server controller that gives access or controls to users on computer networks by first responding to their authentication requests and verifying those users. In other words, a domain controller is a network security manager.
<em>Hop</em> : A hop is simply the passage of data packets from one network to another. As a packet moves from its source to destination, it moves from router to router. The number of such routers that the packet passes through is called a hop.
<em>The Knowledge Consistency Checker (KCC)</em> : It is the job of the KCC to ensure that these domain controllers participate in the replication promptly and orderly. Replication means copying data from one location to another (within a network or among networks). The KCC ensures that the maximum number of hops permitted is does not exceed 3. i.e no domain controller is more than 3 hops from any other domain controller within a network.
Note: Replication is of two types - intrasite (among all domain controllers within a site) and intersite (among all domain controllers in different sites), and the KCC can manage both type of replication. Also, by default, at every 15 minutes interval, a domain controller generates a replication topology (a logical map that dictates the domain controllers that will replicate with each other).
<em>Hope this helps!</em>

<u>Networks were originally used as a government weapon 61 years ago</u> to <u>communicate information</u> such as data and research. However, individual networks were eventually discontinued by the government and made open to the public to use for things such as PAN, LAN, MAN, WAN, SAN, and so on.
<u>Our internet today is capable of communicating with bilions of computers.</u> This is possible due to your modem using radio wave-like speeds to connect to your ISP. Your ISP then connects to a larger network, which is connecting to thousands of other networks. You see, <u>the internet is just a large network of networks that are connected through very fast radiowaves</u>. However, it is not just a single network being used anymore; it's thousands of them. The term, "internet" was used to describe this large selection of networks. In short, <u>B</u><u> would be incorrect. </u>
The worldwide web is a protocol used by the internet to connect to select websites favourably from whoever's using it. This obviously would not define the network, as this is something that's used by it. Furthermore, <u>A</u><u> would not be correct.</u>
As described already, the network was a selection of computers used to communicate information to each other. <u>C </u><u>would not be correct </u>as it states that there is only one computer being used.


Go on your school computer, and find a copy of the form. Then print it from the school printer.
Answer:
Giving that: The following is a sequence of undo-log records written by 2 transactions T and U:
< START T >;
< T,A,10 >;
< START U >;
< U, B, 20 >;
< T, C, 30 >;
< U, D, 40 >;
< Commit U >;
< T, E, 50 >;
< Commit T >;
1. < START U >
Recovery action in this case will be undo(-1) and undo(0). All restored to its original Value
log records < T, A, 10 >, < T, abort >; as written out
2. < T, E, 50 >
Recovery action in this case will be undo(8) and redo(0). A and C is restored to its original value, B and D are set to 20 and 40
log records <T, C, 30 >, < T, A, 10 >, < T, abort > are written out
3. < Commit T >
Recovery action in this case will be redo(7) and redo(4). A and C are set to 10 and 30, B and D are set to 20 and 40
An information system is crucial to the success of a business. Itemized below are five benefits of operating an information system in a business.
<h3>What are the benefits of an Information System?</h3>
Information systems are important because:
- They help to increase and enhance operational efficiencies such as accounting, sales, inventory, and HR operations.
- They help to minimize costs. As the business makes more and more informed decisions, its costs will drop.
- It enhances customer service. Information about customers helps the business to tailor its services to the requirements of each customer.
- Information system helps the decision-makers in the business to make better and more informed decisions.
- Information systems help to ensure business continuity.
<h3>What are the requirements for creating an information system?
</h3>
An information system requires the following:
- Hardware for the computer workstation and addendums
- Software
- A network communication amongst the computers and hardware
- a map of the company's processes and the people responsible for such processes
- A procedural manual.
- Existing data from the business.
For the barber's shop, for example, some of the components of the information system he must put in place are:
A workstation that collects information about:
- Clients
- Details of Sales
- Expenses
- Compliance dates and records etc.
Learn more about Information Systems at:
brainly.com/question/25226643