WK5 D2 Mac Addresses, IPv4, IPv6 and subnet masks

What is a subnet mask?

• A tool used for hacking into networks

• A 32-bit number used to divide an IP address into a network address and host address

• A security feature used to prevent unauthorised access to a network

• A tool used for monitoring network traffic

How does subnetting improve network performance?

• By increasing the number of hosts on a network segment

• By decreasing the number of hosts on a network segment

• By allowing all devices on the network to share the same broadcast domain

• By making it easier for attackers to carry out network attacks

How can subnet masks be used to control access to specific areas of a network?

• By limiting access to certain subnets

• By allowing all devices on the network to share the same broadcast domain

• By increasing the number of hosts on a network segment

• By increasing the attack surface of the network

What is the optimal subnet mask to use when subnetting a network?

• The one that maximises the number of subnets

• The one that maximises the number of hosts per subnet

• The one that balances the number of subnets and hosts per subnet

• The one that allows all devices on the network to share the same broadcast domain

What is a MAC address?

• A protocol used to transmit data between networks

• A unique identifier assigned to a network interface controller (NIC)

• An IP address used to identify a device on a network

• A security feature used to prevent unauthorised access to a network

Which of the following is NOT a valid MAC address format?

• 00:11:22:33:44:55

• 00-11-22-33-44-55

• 001122334455

• 00-11-22-33-44-55-66

Which of these is the correct shortened version of 2001:0db8:85a3:0000:0000:8a2e:0370:7334

• 2001:0db8:85a3::8a2e:0370:7334

• To provide secure network access2001:0db8:85a3:8a2e:0370:7334

What is the maximum number of bits in an IPv6 address?

• 32 bits

• 128 bits

• 256 bits

• 128 bits

Which of these is NOT a hexadecimal digit?

• 0

• H

• F

• 9

what does E in hexadecimal represent in decimal?

• 11

• 15

• 16

• 14