Intro to network layer

Question 1

IP Address

Answer 1

A unique address assigned to each device connected to a network, allowing it to send and receive data.

Question 2

Routing

Answer 2

process of selecting a path for traffic in a network to ensure data packets reach their correct destination.

Question 3

Private IP

Answer 3

private networks and are not routable on the public internet

Question 4

public IP

Answer 4

globally unique and routable

Question 5

Subnet

Answer 5

A subdivision of an IP network that organizes devices into smaller groups, helping with efficient routing.

Question 6

NAT

Answer 6

allows multiple devices on a local network to share a single public IP address, translating private IPs to public ones for internet access.

Question 7

IPv4

#of bits? # of unique addresses?

Answer 7

The fourth version of IP, using a 32-bit address scheme, limiting it to about 4.3 billion addresses.

Question 8

IPv6

Answer 8

128-bit address scheme that significantly expands the address space.

Question 9

ICMP protocol

Answer 9

Used for network diagnostics (e.g., ping, tracert) and error-reporting to determine network connectivity.

Question 10

class a network

range and who host to network ratio?

Answer 10

Range 0.0.0.0 - 127.255.255.255
maximizes hosts per network

Question 11

class b network

Answer 11

range 128.0.0.0 - 191.255.255.255
balancing hosts and network numbers

Question 12

class c network

Answer 12

Range 192.0.0.0 - 223.255.255.255

more networks with fewer hosts

Question 13

Routing loops

Answer 13

result in packets circulating endlessly

Question 14

broadcast storms

Answer 14

can overwhelm network devices with excessive data.