What material replaced stone as the primary materials used to make tools and machines by humans

Which of the following is true of e-learning and computer-based training (CBT)?

Firlakuza [10]

Answer:

The answer is "Option c".

Explanation:

This teaching is normally taken at the origin of machines in software-based research. It can also be installing a computer system into their computer or take the electronic training module generally sponsored by the firm's academic Online media, and the wrong option can be described as follows:

In option a, It is wrong because this tool is not used in training.
In option b, It is integrated with game and e-learning, that's why it is incorrect.
Option d and Options e both were wrong because it can't include delivery and standalone CBT.

3 0

3 years ago

What is the purpose of the backoff on Ethernet networks?

stellarik [79]

Answer: Please see below as the answer is self-explanatory.

Explanation:

In the original Ethernet standard, IEEE 802.3, the method used to deliver packets within a Ethernet network, is called CSMA/CD, and the acronym includes all the Ethernet features in brief.

Let's explain the different parts of the acronym.

CSMA= Carrier Sense Multiple Access.

This means that when any computer in the network (with no privileges for nobody) has a packet to transmit, it first "listen"if the network is idle. If it is the found condition, deliver the packet, and wait for an acknowledgement.

If past a given time, the ACK is not received, assumes that the packet was lost, due to a collision with another packet coming from another computer (this can happen because the packets don't travel instantaneously from one host to another, so one machine could have started to transmit before the another one could sense this fact).

This process is described by the other part of the acronym:

CD = Collission Detection

In order to avoid this type of problem, before trying to resend the packet, it waits some time, which is called "backoff".

This time increases exponentially each time that it is not possible to send a packet successfully, in order to try to find a moment in which finally the network be clear.

8 0

4 years ago

How would you identify communication equipment?

eimsori [14]

Answer

Explanation:

There should be more context to this question but I would say there is a variety of things that could be seen as communication equipment, such as email, telephone, voice message, through mail.

6 0

3 years ago

Tracking a basketball's backspin with an internal sensor can...

valkas [14]

Help a player improve one part of this shooting technique

5 0

3 years ago

An online conference room reservation system lets a user reserve rooms. The user is required to enter contact information and re

lisov135 [29]

Answer:b)Reserve Room, Enter Contact Information, Enter Reservation Detail

Explanation: The use case is described as actors , actors goal, usage of use cases, units of scope and initial point and terminating point of use cases .

The situation mentioned in the question will take place for the reservation of the room through the instances in the form like filling the contact details for the identification , filling out reservation information as well for getting the knowledge about the room requirement by the person.

These details help in reaching out the particular person if required, number of days he wants to book the room,any extra facility he would like to have etc. After these detail filling activity the room can be reserved successfully.Thus , the most appropriate option is option (b).

Other options are incorrect because room reservation cannot be done without any formality as mentioned in the question and entering contact detail and reservation detail one by one.

7 0

3 years ago