Day 07 Flashcards - IPv4 Addresses (Part 1)

What is the loop back address?

A loopback address, also known as "localhost," is a special IP address that directs network traffic back to the same computer, primarily used for testing and diagnostics.

What is the length of an IP address? (bits)

32 bits

What is the length of an IP address? (bits)

32 bits

What is the length of an IP address? (bytes)

4

What are the groups of 8 bits in an IP address called?

octets

What is the maximum value for a binary octet? (1111 1111)

255

What is the numeric range of the first octet of a class A IPv4 address?

0-127

What is the numeric range of the first octet of a class B IPv4 address?

128-191

What is the numeric range of the first octet of a class C IPv4 address?

192-223

What is the numeric range of the first octet of a class D IPv4 address?

224-239

What is the numeric range of the first octet of a class E IPv4 address?

240-255

What is the binary bit pattern of the first octet of a class A IPv4 address?

0xxxxxxx

What is the binary bit pattern of the first octet of a class B IPv4 address?

10xxxxxx

What is the binary bit pattern of the first octet of a class C IPv4 address?

110xxxxx

What is the binary bit pattern of the first octet of a class D IPv4 address?

1110xxxx

What is the binary bit pattern of the first octet of a class E IPv4 address?

1111xxxx

What is the class D IPv4 address range reserved for?

Multicast addresses

What is the class E IPv4 address range reserved for?

Experimental purposes

IPv4 addresses beginning with 127 are used for [...] addresses.

loopback

IPv4 addresses beginning with [...] are used for loopback addresses.

127

What kind of address is used to test the network software stack on the local device?

loopback address

What is the prefix length of a class A IPv4 address?

/8

What is the prefix length of a class B IPv4 address?

/16

What is the prefix length of a class C IPv4 address?

/24

What is the netmask for a /8 prefix length?

255.0.0.0

What is the netmask for a /16 prefix length?

255.255.0.0

What is the netmask for a /24 prefix length?

255.255.255.0

If the host portion of an IPv4 address is all 0s, what kind of address is it?

network address

If the host portion of an IPv4 address is all 1s, what kind of address is it?

broadcast address

If the host portion of an IPv4 address is all 1s then it's known as B______ A_____

Broadcast Address

2__-__9 is the numeric range of the first octet of a class D IPv4 address?

224-239

1___x___ is the binary bit pattern of the first octet of a class E IPv4 address?

1111xxxx

__xxxx__ is the binary bit pattern of the first octet of a class A IPv4 address?

0xxxxxxx

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