Addressing

Question 1

IP addresses

Answer 1

Used by routers to determine whether a packet’s destination is within the current network

Used by network applications to specify which device they wish to communicate with

Question 2

What happens if packet’s destination is not within current network?

Answer 2

Router passes packet onto WAN

Other routers can use the IP address to figure out where to send the packet

Question 3

Properties of an IP address

Answer 3

Must be unique within the same LAN

Do not need to be unique globally

Question 4

Dynamic vs static IP

Answer 4

Static IP is the same IPa every time device connects to a network

Dynamic IP is a new IP address every time it connects to the network

Question 5

What does NIC stand for?

Answer 5

Network Interface Card

Question 6

What does every NIC have?

Answer 6

A globally unique MAC address

Question 7

What does MAC stand for

Answer 7

Media Access Control

Question 8

When a MAC address is assigned?

Answer 8

When a device is manufactured and cannot be changed once they are assigned

Question 9

When does a device have different multiple MAC addresses?

Answer 9

When a device has multiple interfaces

Question 10

What are MAC addresses used for?

Answer 10

Used to exchange data on the same local area network (LAN)

Used by switches and NICs to send data to the intended recipient