IP Addresses

Question 1

Q: What does a Media Access Control (MAC) address identify in a network?

Answer 1

A: Each host in the network for data exchange within the same network.

Question 2

Q: What do IPv4 and IPv6 addresses consist of?

Answer 2

A: A network address and a host address.

Question 3

Q: How can you compare MAC addresses to IP addresses in terms of locating a receiver?

Answer 3

A: MAC describes the exact floor and apartment, while IP describes the unique postal address and district.

Question 4

Q: What is the structure of an IPv4 address?

Answer 4

A: A 32-bit binary number divided into four 8-bit groups (octets) ranging from 0-255, represented in dotted-decimal notation.

Question 5

Q: Who assigns the network part of the IP address on the Internet?

Answer 5

A: The Internet Assigned Numbers Authority (IANA).

Question 6

Q: Describe the range of Class A IP addresses.

Answer 6

A: From 1.0.0.0 to 127.255.255.255 with a subnet mask of 255.0.0.0 and CIDR /8.

Question 7

Q: Describe the range of Class B IP addresses.

Answer 7

A: From 128.0.0.0 to 191.255.255.255 with a subnet mask of 255.255.0.0 and CIDR /16.

Question 8

Q: Describe the range of Class C IP addresses.

Answer 8

A: From 192.0.0.0 to 223.255.255.255 with a subnet mask of 255.255.255.0 and CIDR /24.

Question 9

Q: What is the purpose of the default gateway in a network?

Answer 9

A: It is the IPv4 address of the router that manages addresses and transmission methods between different networks.

Question 10

Q: What is a broadcast address in a network?

Answer 10

A: An address that allows a message to be transmitted to all participants of a network simultaneously without requiring a response.

Question 11

Q: What is the subnet mask for the IPv4 address 192.168.10.39 in CIDR notation?

Answer 11

A: 255.255.255.0, which corresponds to /24.

Question 12

Q: What does Classless Inter-Domain Routing (CIDR) allow?

Answer 12

A: Bitwise division of the IPv4 address space into subnets of any size, indicated by the CIDR suffix.

Question 13

Q: What is a subnet mask?

Answer 13

A: A subnet mask is a 32-bit number used in IPv4 (or 128-bit for IPv6) that divides your IP address into network and host portions. The network portion ensures that data packets reach the right network, while the host portion identifies a specific device on that network.

Question 14

Q: How many bits are used for the network in the CIDR notation 192.168.10.39/24?

Answer 14

A: 24 bits are used for the network.