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Cisco Certification IP Address

Instructions:

Answer 31 questions in 15 minutes.
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Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What do you get if you set the Host address to all one?
Multicast groups
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
The Broadcast address for the associated network.
192-223 (11000000--11011111 binary)

2. If the first bits of the first octet are '1111' what type of address is it?
Private Use Class B
Loopback
Class C (11000000--11011111 binary)
Class E (11110000--11111111 binary)

3. What are Class D addresses reserved for?
N/a
Multicast groups
Setting the Network address to all 0s designation means 'the broadcast address for this network.' (0.0.255.255 ) - 255.255.255.255 indicates a broadcast message intended for all hosts on this network
Loopback

4. What is the IP address range for Class E?
Private Use Class B
240-255 (11110000--11111111 binary)
Loopback
Used by routers to specify the 'default' route. Generic value reduces the number of routing table entries. Some older routers use this address as a broadcast address.

5. If the first bit of the first octet is '0' what type of address is it?
240-255 (11110000--11111111 binary)
Class A (00000001--01111110 binary)
Private Use Class B
192-223 (11000000--11011111 binary)

6. What is 127.0.0.0 reserved for?
1-126 (00000001--01111110 binary)
Loopback
255.255.255.0
The Host address on the local network?

7. In addition to setting the Host address to All 1s - what other formats/short cuts might you see for hosts on this network?

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8. What is the default subnet mask for a Class D IP Address?
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
Class E (11110000--11111111 binary)
Private Use Class B
N/a

9. What is 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
Private Use Class C
224-239 (11100000--11101111 binary)
1-126 (00000001--01111110 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

10. What is the IP address range for Class B?
The last octet is 255. (Verify)
128-191 (10000000--10111111 binary)
Class E (11110000--11111111 binary)
Private Use Class A

11. If the first bits of the first octet are '110' what type of address is it?
Experimental Use
Class C (11000000--11011111 binary)
255.255.255.0
Class E (11110000--11111111 binary)

12. If the first bits of the first octet are '10' what type of address is it?
192-223 (11000000--11011111 binary)
Class B (10000000--10111111 binary)
The Broadcast address for the associated network.
The last octet is 255. (Verify)

13. What is the Broadcast address used for?
Loopback
Multicast groups
To send messages to all hosts on the network at the same time.
192-223 (11000000--11011111 binary)

14. What is the default subnet mask for a Class C IP Address?
Class C (11000000--11011111 binary)
Private Use Class A
The last octet is 255. (Verify)
255.255.255.0

15. What is the default subnet mask for a Class A IP Address?
N/a
The network address is first followed by 0's. examples: Class A network address: 115.0.0.0 - Class B network address: 154.90.0.0 - Class C network address: 221.65.244.0
255.0.0.0
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

16. What do you get when you set the Network portion of the address to 0s?
Setting the Network address to all 0s designation means 'the broadcast address for this network.' (0.0.255.255 ) - 255.255.255.255 indicates a broadcast message intended for all hosts on this network
Private Use Class A
Used by routers to specify the 'default' route. Generic value reduces the number of routing table entries. Some older routers use this address as a broadcast address.
The Host address on the local network?

17. What is the IP address range for Class D?
Multicast groups
224-239 (11100000--11101111 binary)
1-126 (00000001--01111110 binary)
Used by routers to specify the 'default' route. Generic value reduces the number of routing table entries. Some older routers use this address as a broadcast address.

18. What does the subnet mask and/or the address class specify?
Class B (10000000--10111111 binary)
The range of IP addresses available to be assigned to network hosts.Example: Class A 115.0.0.0=host range 115.0.0.1 to 115.255.255.254. Class B 154.90.0.0=host range 154.90.0.1 to 154.90.255.254. Class C 221.65.244.0=host range 221.65.244.1 to 221.65
The Broadcast address for the associated network.
The last octet is 255. (Verify)

19. If the first bits of the first octet are '1110' what type of address is it?
224-239 (11100000--11101111 binary)
192-223 (11000000--11011111 binary)
Loopback
Class D (11100000--11101111 binary)

20. What do you see in a Broadcast address regardless of format?
The last octet is 255. (Verify)
Class A (00000001--01111110 binary)
255.0.0.0
Class D (11100000--11101111 binary)

21. What is the default subnet mask for a Class E IP Address?
Setting the Network address to all 0s designation means 'the broadcast address for this network.' (0.0.255.255 ) - 255.255.255.255 indicates a broadcast message intended for all hosts on this network
N/a
Network address & Host address
Private Use Class C

22. What is 127.16.0.0 to 127.31.255.255 reserved for?
Private Use Class B
The Broadcast address for the associated network.
The range of IP addresses available to be assigned to network hosts.Example: Class A 115.0.0.0=host range 115.0.0.1 to 115.255.255.254. Class B 154.90.0.0=host range 154.90.0.1 to 154.90.255.254. Class C 221.65.244.0=host range 221.65.244.1 to 221.65
Private Use Class C

23. What is the IP address range for Class C?
Class B (10000000--10111111 binary)
192-223 (11000000--11011111 binary)
Class C (11000000--11011111 binary)
Network address & Host address

24. What is 10.0.0.0 to 10.255.255.55 reserved for?
The Broadcast address for the associated network.
Private Use Class A
Class C (11000000--11011111 binary)
The network address is first followed by 0's. examples: Class A network address: 115.0.0.0 - Class B network address: 154.90.0.0 - Class C network address: 221.65.244.0

25. How do routers generally handle Private use addresses?
255.255.0.0
Class C (11000000--11011111 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
The range of IP addresses available to be assigned to network hosts.Example: Class A 115.0.0.0=host range 115.0.0.1 to 115.255.255.254. Class B 154.90.0.0=host range 154.90.0.1 to 154.90.255.254. Class C 221.65.244.0=host range 221.65.244.1 to 221.65

26. What are the two parts of an IP address?
The last octet is 255. (Verify)
Network address & Host address
Setting the Network address to all 0s designation means 'the broadcast address for this network.' (0.0.255.255 ) - 255.255.255.255 indicates a broadcast message intended for all hosts on this network
192-223 (11000000--11011111 binary)

27. What is an address of 0.0.0.0 used for?

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28. What is the characturistic of a network address?

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29. What are Class E addresses reserved for?
Experimental Use
255.255.0.0
Class D (11100000--11101111 binary)
The Broadcast address for the associated network.

30. What is the default subnet mask for a Class B IP Address?
128-191 (10000000--10111111 binary)
255.255.0.0
Class C (11000000--11011111 binary)
Private Use Class A

31. What is the IP address range for Class A?
Private Use Class B
1-126 (00000001--01111110 binary)
Class B (10000000--10111111 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.