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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 is the IP address range for Class C?
Class B (10000000--10111111 binary)
Experimental Use
192-223 (11000000--11011111 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

2. What are the two parts of an IP address?
Experimental Use
255.255.0.0
Network address & Host address
The last octet is 255. (Verify)

3. What are Class E addresses reserved for?
Class B (10000000--10111111 binary)
Experimental Use
The Host address on the local network?
Class D (11100000--11101111 binary)

4. If the first bit of the first octet is '0' what type of address is it?
The Broadcast address for the associated network.
Class C (11000000--11011111 binary)
Class A (00000001--01111110 binary)
Loopback

5. What is the Broadcast address used for?
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
Private Use Class A
To send messages to all hosts on the network at the same time.
The Broadcast address for the associated network.

6. If the first bits of the first octet are '1111' what type of address is it?
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
To send messages to all hosts on the network at the same time.
The Broadcast address for the associated network.
Class E (11110000--11111111 binary)

7. What is 127.0.0.0 reserved for?
Class D (11100000--11101111 binary)
Class B (10000000--10111111 binary)
Loopback
Class C (11000000--11011111 binary)

8. 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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9. What is 10.0.0.0 to 10.255.255.55 reserved for?
1-126 (00000001--01111110 binary)
240-255 (11110000--11111111 binary)
Private Use Class A
Class E (11110000--11111111 binary)

10. What is the IP address range for Class D?
224-239 (11100000--11101111 binary)
Private Use Class B
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
Class E (11110000--11111111 binary)

11. What is 127.16.0.0 to 127.31.255.255 reserved for?
Loopback
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 B
Class B (10000000--10111111 binary)

12. What is the characturistic of a network address?

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13. What do you get when you set the Network portion of the address to 0s?
The Host address on the local network?
Class B (10000000--10111111 binary)
The last octet is 255. (Verify)
To send messages to all hosts on the network at the same time.

14. What is the default subnet mask for a Class A IP Address?
224-239 (11100000--11101111 binary)
The Host address on the local network?
255.255.0.0
255.0.0.0

15. What is the default subnet mask for a Class E IP Address?
N/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.
255.255.255.0
Multicast groups

16. What is the IP address range for Class B?
128-191 (10000000--10111111 binary)
Experimental Use
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.
N/a

17. What do you get if you set the Host address to all one?
The Broadcast address for the associated network.
255.255.255.0
The last octet is 255. (Verify)
Private Use Class C

18. If the first bits of the first octet are '1110' what type of address is it?
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
Loopback
Class B (10000000--10111111 binary)
Class D (11100000--11101111 binary)

19. What is the IP address range for Class E?
240-255 (11110000--11111111 binary)
Private Use Class C
Class C (11000000--11011111 binary)
The Broadcast address for the associated network.

20. If the first bits of the first octet are '10' what type of address is it?
255.255.255.0
Class C (11000000--11011111 binary)
255.0.0.0
Class B (10000000--10111111 binary)

21. What does the subnet mask and/or the address class specify?
240-255 (11110000--11111111 binary)
Class E (11110000--11111111 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
Private Use Class C

22. What is the default subnet mask for a Class B IP Address?
The last octet is 255. (Verify)
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
255.255.0.0
Loopback

23. How do routers generally handle Private use addresses?
Class A (00000001--01111110 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
Class D (11100000--11101111 binary)
To send messages to all hosts on the network at the same time.

24. What are Class D addresses reserved for?
Multicast groups
The Broadcast address for the associated network.
Class A (00000001--01111110 binary)
Class D (11100000--11101111 binary)

25. What do you see in a Broadcast address regardless of format?
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
The last octet is 255. (Verify)
The Broadcast address for the associated network.
Private Use Class C

26. What is 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
The last octet is 255. (Verify)
Private Use Class C
255.255.255.0
224-239 (11100000--11101111 binary)

27. If the first bits of the first octet are '110' what type of address is it?
1-126 (00000001--01111110 binary)
Class C (11000000--11011111 binary)
255.0.0.0
192-223 (11000000--11011111 binary)

28. What is the default subnet mask for a Class D IP Address?
255.255.0.0
N/a
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
Class E (11110000--11111111 binary)

29. What is the IP address range for Class A?
1-126 (00000001--01111110 binary)
Private Use Class B
128-191 (10000000--10111111 binary)
224-239 (11100000--11101111 binary)

30. What is an address of 0.0.0.0 used for?

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31. What is the default subnet mask for a Class C IP Address?
The Broadcast address for the associated network.
128-191 (10000000--10111111 binary)
192-223 (11000000--11011111 binary)
255.255.255.0