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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 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
The Broadcast address for the associated network.
255.0.0.0
255.255.0.0
Private Use Class C

2. What are Class E addresses reserved for?
N/a
To send messages to all hosts on the network at the same time.
255.255.0.0
Experimental Use

3. If the first bits of the first octet are '110' what type of address is it?
Private Use Class C
Class C (11000000--11011111 binary)
Private Use Class B
Class D (11100000--11101111 binary)

4. What is the IP address range for Class A?
1-126 (00000001--01111110 binary)
Class E (11110000--11111111 binary)
Loopback
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

5. What is the IP address range for Class E?
Network address & Host address
240-255 (11110000--11111111 binary)
Private Use Class A
Class A (00000001--01111110 binary)

6. What is the default subnet mask for a Class E IP Address?
N/a
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
Private Use Class C
255.255.0.0

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

8. What is the IP address range for Class B?
255.0.0.0
255.255.255.0
128-191 (10000000--10111111 binary)
Network address & Host address

9. What are the two parts of an IP address?
Network address & Host address
The last octet is 255. (Verify)
Class B (10000000--10111111 binary)
Private Use Class C

10. If the first bits of the first octet are '1110' what type of address is it?
192-223 (11000000--11011111 binary)
128-191 (10000000--10111111 binary)
The Host address on the local network?
Class D (11100000--11101111 binary)

11. What is the default subnet mask for a Class B IP Address?
Class D (11100000--11101111 binary)
Class C (11000000--11011111 binary)
255.255.0.0
Network address & Host address

12. What is the default subnet mask for a Class C IP Address?
255.255.0.0
255.255.255.0
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.

13. If the first bit of the first octet is '0' what type of address is it?
Private Use Class C
Class A (00000001--01111110 binary)
255.255.0.0
255.0.0.0

14. What are Class D addresses reserved for?
Class D (11100000--11101111 binary)
Multicast groups
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

15. What do you see in a Broadcast address regardless of format?
255.0.0.0
The last octet is 255. (Verify)
To send messages to all hosts on the network at the same time.
Network address & Host address

16. What is the default subnet mask for a Class A IP Address?
128-191 (10000000--10111111 binary)
Class B (10000000--10111111 binary)
255.0.0.0
Private Use Class C

17. What do you get when you set the Network portion of the address to 0s?
Private Use Class B
Class B (10000000--10111111 binary)
The Host address on the local network?
1-126 (00000001--01111110 binary)

18. What is 10.0.0.0 to 10.255.255.55 reserved for?
Private Use Class A
128-191 (10000000--10111111 binary)
255.255.255.0
The last octet is 255. (Verify)

19. If the first bits of the first octet are '10' what type of address is it?
Class D (11100000--11101111 binary)
N/a
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
Class B (10000000--10111111 binary)

20. What is 127.0.0.0 reserved for?
Class C (11000000--11011111 binary)
255.255.255.0
128-191 (10000000--10111111 binary)
Loopback

21. What is an address of 0.0.0.0 used for?

22. What do you get if you set the Host address to all one?
The Broadcast address for the associated network.
The Host address on the local network?
Private Use Class B
255.255.255.0

23. If the first bits of the first octet are '1111' what type of address is it?
128-191 (10000000--10111111 binary)
Class C (11000000--11011111 binary)
224-239 (11100000--11101111 binary)
Class E (11110000--11111111 binary)

24. What does the subnet mask and/or the address class specify?
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.
The Host address on the local 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

25. What is the IP address range for Class D?
255.0.0.0
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
224-239 (11100000--11101111 binary)

26. What is 127.16.0.0 to 127.31.255.255 reserved for?
The Broadcast address for the associated network.
Class E (11110000--11111111 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.
Private Use Class B

27. What is the Broadcast address used for?
Class C (11000000--11011111 binary)
Network address & Host address
To send messages to all hosts on the network at the same time.
224-239 (11100000--11101111 binary)

28. What is the default subnet mask for a Class D IP Address?
N/a
Private Use Class B
The last octet is 255. (Verify)
The Broadcast address for the associated network.

29. What is the IP address range for Class C?
Loopback
128-191 (10000000--10111111 binary)
192-223 (11000000--11011111 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.

30. What is the characturistic of a network address?

31. How do routers generally handle Private use addresses?
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
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
Class A (00000001--01111110 binary)
Class D (11100000--11101111 binary)