COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

TYPES OF THREATS AND ATTACKS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
One of the following components working at physical layer:
A
Switch
B
PC
C
Hub
D
Router
Explanation: 

Detailed explanation-1: -The physical layer defines the relationship between a device and a transmission medium, such as a copper or optical cable. This includes the layout of pins, voltages, cable specifications, hubs, repeaters, network adapters, host bus adapters (HBA used in storage area networks) and more.

Detailed explanation-2: -Devices that operate at the physical layer include repeaters, hubs, network interface cards (NICs), cables and connectors.

Detailed explanation-3: -Physical/device layer. This comprises the sensors, actuators and other smart devices and connected devices that comprise the physical layer and device layer. These smart devices either capture data (sensors), take action (actuators) or sometimes both.

Detailed explanation-4: -Basic hardware components used in the OSI physical layer include network interface cards (NICs), connectors and interfaces, and cables that facilitate the transmission of data from source to destination.

There is 1 question to complete.