3.4 - Network Hardware

Question 1

What does a computer need to access a network? [1]

Answer 1

network interface card (NIC)

Question 2

What does NIC contain? [1]

Answer 2

the media access control (MAC address)

Question 3

What are the two types of NIC? [2]

Answer 3

• wireless
• LAN

Question 4

What is the usage of an interface? [1]

Answer 4

• created so data can transfer from internet to CPU and vice versa

Question 5

What is a MAC address? [1]

Answer 5

identifies a device connected to a network

Question 6

What is the structure of a MAC address? [3]

Answer 6

• usually written as hexadecimal
• created using manufacturer code and serial code
• written in groups of 6 hex digits

Question 7

What is the length of a MAC address? [1]

Answer 7

48 bits

Question 8

What is MAC spoofing? [1]

Answer 8

hackers try to change their MAC address to get into a network

Question 9

What is an IP address? [1]

Answer 9

a router assigns the device which connects to a network an IP address

Question 10

What are the different versions of IP address? [2]

Answer 10

• IPv4
• IPv6

Question 11

What is static IP? [4]

Answer 11

• once assigned it never changes
• it is manually assigned
• no lease time
• more expensive

Question 12

What is dynamic IP? [4]

Answer 12

• it can change
• automatically assigned
• better for bigger networks
• fixed lease time

Question 13

What are the different types of IP address? [2]

Answer 13

• static
• dynamic

Question 14

What are features of an IPv4 address? [3]

Answer 14

• uses 4 octates
• each octate can have a number between 0-255
• numbers must be represented as 8 bits

Question 15

What is the total number of bits in an IPv4 address? [1]

Answer 15

32 bits

Question 16

What are features of an IPv6 address? [2]

Answer 16

• uses hexacdecimal
• 8 groups of 4 hex digits

Question 17

What is the total number of bits in an IPv6 address? [1]

Answer 17

128 bits

Question 18

What is a router? [1]

Answer 18

they enable data packets to be routed between different networks

Question 19

What is the role of a router in a network? [3]

Answer 19

• finding a path to the destination
• forward packets
• assign IP address to devices