Question

True or False:

1- When you send a message out to somebody on the same LAN, the target Mac address is needed •

2- When you send a message out to somebody on the same LAN, the target IP address is needed •

3-When you send a message out to somebody on the same LAN, the target Mac address and IP address are needed •

4- When you send a message out to somebody on the Internet, the target Mac address is needed •

5- When you send a message out to somebody on the Internet, the target IP address is needed •

6- When you send a message out to somebody on the Internet the target Mac address and IP address are needed

Answer 1

1- When you send a message out to somebody on the same LAN, the target Mac address is needed - TRUE

When we send out a message to any devices in the same LAN, we would require destination mac address to reach the device because we can reach the device only with its mac address in LAN.

2- When you send a message out to somebody on the same LAN, the target IP address is needed • TRUE

There very few application uses only MAC address to communicate with other LAN devices using MAC address. But we will also be using target IP address to reach the host or device

3-When you send a message out to somebody on the same LAN, the target Mac address and IP address are needed • TRUE

As discussed in 1 and 2., we will require both targets mac address and ip address. If we don't know the targets mac, our device will send the broadcast mac packet to understand/know its mac address and then it send the message

4- When you send a message out to somebody on the Internet, the target Mac address is needed • FALSE

Mac address is not required when we send out the message in internet.

5- When you send a message out to somebody on the Internet, the target IP address is needed • TRUE

Destination IP address is a must to send out the message in internet.

6- When you send a message out to somebody on the Internet the target Mac address and IP address are needed : FALSE

As discussed in earlier questions we need only targets ip address to sends the message out in Internet.