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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.
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. What is an address of 0.0.0.0 used for?

2. What is the IP address range for Class D?
Private Use Class C
192-223 (11000000--11011111 binary)
224-239 (11100000--11101111 binary)
Private Use Class B

3. What are Class E addresses reserved for?
Experimental Use
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 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
240-255 (11110000--11111111 binary)

4. What does the subnet mask and/or the address class specify?
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
Network address & Host address
255.0.0.0
1-126 (00000001--01111110 binary)

5. What are Class D addresses reserved for?
Private Use Class B
Multicast groups
240-255 (11110000--11111111 binary)
255.255.0.0

6. If the first bit of the first octet is '0' what type of address is it?
255.255.0.0
240-255 (11110000--11111111 binary)
Class E (11110000--11111111 binary)
Class A (00000001--01111110 binary)

7. What is the IP address range for 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.
1-126 (00000001--01111110 binary)
Network address & Host address
To send messages to all hosts on the network at the same time.

8. What is the default subnet mask for a Class D IP Address?
255.255.0.0
Loopback
N/a
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

9. What do you get if you set the Host address to all one?
The Broadcast address for the associated network.
Class A (00000001--01111110 binary)
1-126 (00000001--01111110 binary)
Class E (11110000--11111111 binary)

10. What is the default subnet mask for a Class C IP Address?
255.255.255.0
192-223 (11000000--11011111 binary)
Network address & Host address
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

11. What are the two parts of an IP address?
Network address & Host address
The Broadcast address for the associated network.
Private Use Class C
255.0.0.0

12. What is the default subnet mask for a Class B IP Address?
The Broadcast address for the associated network.
1-126 (00000001--01111110 binary)
255.255.0.0
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

13. What is 127.16.0.0 to 127.31.255.255 reserved for?
192-223 (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 B
N/a

14. What is the default subnet mask for a Class E IP Address?
255.255.255.0
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
The last octet is 255. (Verify)
N/a

15. What is the characturistic of a network address?

16. If the first bits of the first octet are '10' what type of address is it?
Class B (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.
The Broadcast address for the associated network.

17. If the first bits of the first octet are '1110' what type of address is it?
192-223 (11000000--11011111 binary)
Class B (10000000--10111111 binary)
Class D (11100000--11101111 binary)
N/a

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

19. If the first bits of the first octet are '110' what type of address is it?
Experimental Use
Class C (11000000--11011111 binary)
Class B (10000000--10111111 binary)
Network address & Host address

20. What is 127.0.0.0 reserved for?
Loopback
255.0.0.0
N/a
The last octet is 255. (Verify)

21. If the first bits of the first octet are '1111' what type of address is it?
255.255.255.0
Class E (11110000--11111111 binary)
The Host address on the local network?
N/a

22. What do you get when you set the Network portion of the address to 0s?
240-255 (11110000--11111111 binary)
224-239 (11100000--11101111 binary)
The Host address on the local network?
Multicast groups

23. What is the IP address range for Class B?
Class B (10000000--10111111 binary)
1-126 (00000001--01111110 binary)
128-191 (10000000--10111111 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

24. What is the Broadcast address used for?
224-239 (11100000--11101111 binary)
To send messages to all hosts on the network at the same time.
128-191 (10000000--10111111 binary)
255.255.255.0

25. What is the IP address range for Class C?
Class C (11000000--11011111 binary)
192-223 (11000000--11011111 binary)
To send messages to all hosts on the network at the same time.
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

26. How do routers generally handle Private use addresses?
Network address & Host address
Experimental Use
Class D (11100000--11101111 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

27. What is the default subnet mask for a Class A IP Address?
255.0.0.0
Class C (11000000--11011111 binary)
Class E (11110000--11111111 binary)
Private Use Class A

28. What is the IP address range for Class E?
The Host address on the local network?
Loopback
240-255 (11110000--11111111 binary)
192-223 (11000000--11011111 binary)

29. What do you see in a Broadcast address regardless of format?
Experimental Use
The last octet is 255. (Verify)
Multicast groups
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 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
Multicast groups
Network address & Host address
Class E (11110000--11111111 binary)
Private Use Class C

31. What is 10.0.0.0 to 10.255.255.55 reserved for?
224-239 (11100000--11101111 binary)
Private Use Class A
Network address & Host address
Experimental Use