Answer:
The data-link layer
Explanation:
The physical layer and data-link layer are often confused a lot especially in terms of what they do in the TCP/IP 7 layer protocol. The physical layer as the name suggests represents the physical devices like the cables and the connectors that join or interconnect computers together. This layer is also responsible for sending the signals over to other connections of a network. The data-link, on the other hand, translates and interprets these sent binary signals so that network devices can communicate. This layer is responsible in adding mac addresses to data packets and encapsulating these packets into frames before being placed on the media for transmission. Since it resides in between the network layer and the physical layer, it connects the upper layers of the TCP/IP model to the physical layer.
Answer:
Option D is correct.
Explanation:
The Digital Revolution applies to technological improvements from optical automated and mechanical machines to that of the digital technology that is currently accessible. The era began well into the year of 1980s, and continues. That Digital Revolution still marked as the start of the Era of Info.
- It's the evolution of electrical and analog to digital technologies.
- Its the advent of digital technologies has also altered the manner of people communication.
- The following things are only done through computers, cellphones, as well as the web.
Answer:
A) Array of buttons for<u> quick access </u>to commonly used <u>commands and tools</u>: Tool bar
That's what most people will use most of the time, to quickly perform the most common tasks.
B) <u>List of commands</u> to create, format and edit presentations: Menu Bar.
When the features listed in the tool bar aren't enough, we go to the Menu system, which lists all the features of the program.
C) <u>Provides info</u> about current slide<u> at the bottom</u> of the slide: Status Bar.
The status bar is always located at the <u>bottom of the screen</u>.
D) <u>Provides navigation</u> through the slides: Scroll bar.
Where you can scroll down and up your slides.
