Jeremy's IT Lab CCNA IPv4 Addressing (Part 1) Day 7

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Last updated 6:46 AM on 7/24/26
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27 Terms

1
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network address

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

2
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broadcast address

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

3
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loopback

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

4
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127

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

5
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octets

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

6
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0xxxxxxx

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

7
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10xxxxxx

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

8
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110xxxxx

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

9
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1110xxxx

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

10
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1111xxxx

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

11
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Multicast addresses

What is the class D IPv4 address range reserved for?

12
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Experimental purposes

What is the class E IPv4 address range reserved for?

13
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32 bits

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

14
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4 bytes

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

15
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255

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

16
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255.255.0.0

What is the netmask for a /16 prefix length?

17
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255.255.255.0

What is the netmask for a /24 prefix length?

18
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255.0.0.0

What is the netmask for a /8 prefix length?

19
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0-127

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

20
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128-191

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

21
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192-223

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

22
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224-239

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

23
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240-255

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

24
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/8

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

25
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/16

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

26
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/24

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

27
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loopback address

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