Answer:
it has helped the people of today by
1.helped the young generation with there homework
2.you can book an hotel through the internet
3.you can also book a plane ticket via the internet
4.it is easier to look to ur email message via the internet
Answer:
MAC Addresses (Destination and Source MAC address)
Explanation:
A switch has 3 primary functions:
- Forward frames
- Learn addresses
- Avoid loops
An Ethernet frame has the header, data and trailer and there are two specific fields in the header that helps the switch to know where to send data in future transmissions.
- destination MAC address
- source MAC address
every Ethernet frame has this and when the frame hits a switch or any device, any device can look at it ( an Ethernet frame ) and know where it is suppose to go and where it came from.
Every switch has a MAC address table where it stores MAC addresses of different computers on the network.
Example:
When a PC1 sends a frame to PC2 through a switch, the switch looks at the header of the Ethernet frame for the source mac address and adds the source MAC address to its MAC address table and also the port that it came through.
simply put:
A switch looks at the source MAC address to see if it knows it already, if it does. Great! no need to add it again to it's address table.
If it doesn't, it adds it's source address and the port that the frame came from.
This basically how the switch populates its MAC address table.
Answer:
The left and right index finger
Explanation:
Left index finger: R, T, F, G, C, V
Right index finger: Y, U, H, J, B, N
Answer:
The correct answer to the following question will be Option B (Policy).
Explanation:
- The Policy is a systematic set of rules for driving policies and obtaining rational results. It is a declaration of intent and is applied as a process or protocol.
- Policies are usually implemented by the governing body throughout the corporation.
- It was the feature of Information assurance management, which sought to dictate those activities throughout the organization via a collection of institutional requirements.
Therefore, Option B is the right answer.
Answer:
hope you like it
Explanation:
Two types of power supplies exist, DC-DC and AC-DC. DC-DC power supplies allow you to plug in electrical devices into car outlets or similar sources that supply direct current, or DC, power. These power supplies are not the most commonly used, though.
Classification of Power Supply and Its Different Types
OUTPUT = DC OUTPUT = AC
INPUT = AC Wall wart Bench power supplies Battery charger Isolation transformer Variable AC supply Frequency changer
INPUT = DC DC-DC converter Inverter Generator UPS
