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Questions and Answers
What is the default subnet mask for the IP address 203.111.3.3? (Select one)
What is the default subnet mask for the IP address 203.111.3.3? (Select one)
- 255.0.0.0
- 255.255.255.0 (correct)
- 255.255.0.0
- 255.255.255.255
Which of the following IP addresses belong to the Class A network 114.0.0.0? (Select three)
Which of the following IP addresses belong to the Class A network 114.0.0.0? (Select three)
- 114.122.66.12 (correct)
- 115.77.89.4
- 115.0.0.66
- 114.58.12.0 (correct)
- 114.0.0.15 (correct)
- 155.88.0.55
Which of the following best describes an IP address class? (Select one)
Which of the following best describes an IP address class? (Select one)
- The class defines the default network address portion of the IP address. (correct)
- The class refers to the range of IP addresses that a DHCP server has been authorized to sign.
- The class defines the type of device that the address is assigned to (i.e. server, printer, workstation).
- The class is the version of the IP addressing standard used by the address.
Which of the following is a valid IP address? (Select two)
Which of the following is a valid IP address? (Select two)
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Which of the following are not valid IP addresses? (Select three)
Which of the following are not valid IP addresses? (Select three)
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Which of the following IP addresses are Class C addresses? (Select three)
Which of the following IP addresses are Class C addresses? (Select three)
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Which of the following IP addresses are Class B addresses? (Select three)
Which of the following IP addresses are Class B addresses? (Select three)
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Study Notes
Default Subnet Mask
- Default subnet mask for IP address 203.111.3.3 is 255.255.255.0.
Class A Network Addresses
- Class A network: 114.0.0.0.
- Valid Class A IPs include:
- 114.0.0.15
- 114.122.66.12
- 114.58.12.0
IP Address Classes
- The class of an IP address defines the default network address portion.
Valid IP Addresses
- Valid IP addresses include:
- 172.16.1.26
- 2.2.2.2
- Invalid IP addresses in the list are characterized by out-of-range values.
Invalid IP Addresses
- Invalid IPs identified include:
- 257.0.122.55 (octet exceeds 255)
- 145.8.260.7 (octet exceeds 255)
- 45.22.156.256 (octet exceeds 255)
Class C Addresses
- Class C IP addresses include:
- 223.16.5.0
- 222.55.0.0
- 192.15.5.55
Class B Addresses
- Class B IP addresses include:
- 192.0.0.0
- 132.12.0.0
- 190.65.2.0
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