Test your basic knowledge |

Cisco Certification IP Address

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. If the first bits of the first octet are '1111' what type of address is it?
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.
Class E (11110000--11111111 binary)
240-255 (11110000--11111111 binary)
255.255.0.0

2. What is the characturistic of a network address?

3. What is 127.0.0.0 reserved for?
Loopback
The last octet is 255. (Verify)
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 C

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

5. If the first bits of the first octet are '10' what type of address is it?
The Host address on the local network?
Class B (10000000--10111111 binary)
Experimental Use
1-126 (00000001--01111110 binary)

6. What do you get when you set the Network portion of the address to 0s?
Loopback
255.255.0.0
The Host address on the local network?
Private Use Class C

7. What is an address of 0.0.0.0 used for?

8. What is the default subnet mask for a Class E IP Address?
Class C (11000000--11011111 binary)
Private Use Class A
N/a
240-255 (11110000--11111111 binary)

9. If the first bits of the first octet are '110' what type of address is it?
N/a
Class A (00000001--01111110 binary)
The Broadcast address for the associated network.
Class C (11000000--11011111 binary)

10. What is the IP address range for Class A?
Private Use Class C
1-126 (00000001--01111110 binary)
N/a
192-223 (11000000--11011111 binary)

11. What is 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
128-191 (10000000--10111111 binary)
Private Use Class C
255.255.0.0
The Broadcast address for the associated network.

12. What is the default subnet mask for a Class D IP Address?
Class B (10000000--10111111 binary)
Experimental Use
N/a
Loopback

13. What are Class D addresses reserved for?
Network address & Host address
The Host address on the local network?
Multicast groups
The last octet is 255. (Verify)

14. What is the default subnet mask for a Class B IP Address?
The Host address on the local network?
255.255.255.0
The last octet is 255. (Verify)
255.255.0.0

15. What do you get if you set the Host address to all one?
Class E (11110000--11111111 binary)
The Broadcast address for the associated network.
Loopback
N/a

16. What is the default subnet mask for a Class C IP Address?
255.255.255.0
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
1-126 (00000001--01111110 binary)
Class E (11110000--11111111 binary)

17. What is the IP address range for Class E?
240-255 (11110000--11111111 binary)
Class D (11100000--11101111 binary)
To send messages to all hosts on the network at the same time.
Loopback

18. What is the Broadcast address used for?
The Broadcast address for the associated network.
Network address & Host address
240-255 (11110000--11111111 binary)
To send messages to all hosts on the network at the same time.

19. What is 10.0.0.0 to 10.255.255.55 reserved for?
Class C (11000000--11011111 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 A
The Broadcast address for the associated network.

20. What do you see in a Broadcast address regardless of format?
Private Use Class C
Class E (11110000--11111111 binary)
The last octet is 255. (Verify)
Experimental Use

21. What are the two parts of an IP address?
Class C (11000000--11011111 binary)
Network address & Host address
N/a
255.255.255.0

22. What is the IP address range for Class B?
255.255.0.0
128-191 (10000000--10111111 binary)
Private Use Class C
Private Use Class A

23. What does the subnet mask and/or the address class specify?
255.255.0.0
1-126 (00000001--01111110 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
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.

24. What is the IP address range for Class C?
240-255 (11110000--11111111 binary)
192-223 (11000000--11011111 binary)
128-191 (10000000--10111111 binary)
N/a

25. What is the IP address range for Class D?
Experimental Use
The Broadcast address for the associated network.
Private Use Class A
224-239 (11100000--11101111 binary)

26. If the first bit of the first octet is '0' what type of address is it?
Network address & Host address
The Broadcast address for the associated network.
255.255.0.0
Class A (00000001--01111110 binary)

27. What is 127.16.0.0 to 127.31.255.255 reserved for?
Network address & Host address
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
Private Use Class A

28. What are Class E addresses reserved for?
Experimental Use
224-239 (11100000--11101111 binary)
Class D (11100000--11101111 binary)
Loopback

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

30. If the first bits of the first octet are '1110' what type of address is it?
Class D (11100000--11101111 binary)
255.255.255.0
Class B (10000000--10111111 binary)
Private Use Class A

31. How do routers generally handle Private use addresses?
255.0.0.0
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.
255.255.255.0