Answer:
d. All of the above
Explanation:
Physical layer is the lowest layer of the OSI reference model that deals with the setup of physical connection to the network and with transmission and reception of signals.
Full duplex (FDx) is a bidirectional type of communication system where two end nodes send and receive data signals at the same time, and a single carrier is simultaneously used for dual communication.
To send or receive data, the participating nodes in a Full Duplex system do not have to wait for a free carrier/medium. It employs a medium that has at least two internal channels - one for sending and one for receiving.
Based on the above explanations, options A, B and C are valid and are correct ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1). There all of them are correct.
Answer:
Basically, dealing with the "software crisis" is what we now call software engineering. We just see the field more clearly now.
What this crisis was all about is that in the early days of the modern technological era -- in the 1950s, say -- there was tremendous optimism about the effect that digital computers could have on society, on their ability to literally solve humanity's problems. We just needed to formalize important questions and let our hulking "digital brains" come up with the answers.
Artificial intelligence, for example, had some early successes in easy to formalize domains like chess and these sorts of successes led to lots of people who should have known better making extremely naive predictions about how soon perfect machine translation would transform human interaction and how soon rote and onerous work would be relegated to the dustbin of history by autonomous intelligent machines.
The most common schedule for tape-based backup is called the daily on-site backup.
<h3>What is daily backup?</h3>
The daily backup is known to be a kind of backs up of only files that were were said to be modified that day.
A full backup is known to be a full and complete backup of the whole system, such as all applications, operating systems components, etc.
Learn more about backup from
brainly.com/question/86807
Option + 1
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Answer:
c. mentorship programs taking place via the internet
Explanation:
The World Wide Web (WWW) was created by Tim Berners-Lee in 1990, which eventually gave rise to the development of Web 2.0 in 1999.
Web 2.0 can be defined as a collection of internet software programs or applications which avails the end users the ability or opportunity to share files and resources, as well as enhance collaboration over the internet.
Basically, it's an evolution from a static worldwide web to a dynamic web that enhanced social media. Some of the examples of social media platforms (web 2.0) are You-Tube, Flickr, Go-ogle maps, Go-ogle docs, Face-book, Twit-ter, Insta-gram etc.
Some of the main characteristics of Web 2.0 are;
I. Social networking.
II. Blogging.
III. Interactive comments being available on many websites.
Also, most software applications developed for Web 2.0 avails its users the ability to synchronize with handheld or mobile devices such as smartphones.
However, mentorship programs taking place via the internet is not a characteristic of Web 2.0 but that of Web 3.0 (e-mentoring).
