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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 does the subnet mask and/or the address class specify?
N/a
Private Use Class C
Class D (11100000--11101111 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

2. What is 10.0.0.0 to 10.255.255.55 reserved for?
Network address & Host address
Private Use Class A
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.

3. What is 127.0.0.0 reserved for?
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.
Class A (00000001--01111110 binary)
To send messages to all hosts on the network at the same time.

4. If the first bits of the first octet are '1111' what type of address is it?
Multicast groups
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
Loopback
Class E (11110000--11111111 binary)

5. What is the IP address range for Class B?
N/a
128-191 (10000000--10111111 binary)
The Broadcast address for the associated network.
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.

6. What are Class E addresses reserved for?
Multicast groups
Experimental Use
Loopback
Network address & Host address

7. If the first bits of the first octet are '10' what type of address is it?
Class B (10000000--10111111 binary)
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
Multicast groups

8. If the first bits of the first octet are '110' what type of address is it?
Class E (11110000--11111111 binary)
The last octet is 255. (Verify)
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

9. If the first bit of the first octet is '0' what type of address is it?
The Host address on the local network?
Multicast groups
Class A (00000001--01111110 binary)
The Broadcast address for the associated network.

10. What is the default subnet mask for a Class E IP Address?
N/a
1-126 (00000001--01111110 binary)
255.0.0.0
Class D (11100000--11101111 binary)

11. What is 127.16.0.0 to 127.31.255.255 reserved for?
Private Use Class B
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
Class C (11000000--11011111 binary)
192-223 (11000000--11011111 binary)

12. What is an address of 0.0.0.0 used for?

13. What is the default subnet mask for a Class C IP Address?
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
Network address & Host address
255.255.0.0
255.255.255.0

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

15. If the first bits of the first octet are '1110' what type of address is it?
Private Use Class A
Class D (11100000--11101111 binary)
Loopback
N/a

16. What is the Broadcast address used for?
To send messages to all hosts on the network at the same time.
255.255.0.0
255.255.255.0
Multicast groups

17. How do routers generally handle Private use addresses?
Class E (11110000--11111111 binary)
Multicast groups
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

18. What is the default subnet mask for a Class A 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
Network address & Host address
255.0.0.0
Private Use Class A

19. What are Class D addresses reserved for?
128-191 (10000000--10111111 binary)
Class A (00000001--01111110 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
Multicast groups

20. What do you see in a Broadcast address regardless of format?
255.0.0.0
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
The last octet is 255. (Verify)

21. What do you get when you set the Network portion of the address to 0s?
The Host address on the local network?
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 Broadcast address for the associated network.
1-126 (00000001--01111110 binary)

22. What do you get if you set the Host address to all one?
N/a
224-239 (11100000--11101111 binary)
128-191 (10000000--10111111 binary)
The Broadcast address for the associated network.

23. What is the characturistic of a network address?

24. What are the two parts of an IP address?
Network address & Host address
N/a
Experimental Use
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

25. What is the IP address range for Class E?
240-255 (11110000--11111111 binary)
The Host address on the local network?
Class A (00000001--01111110 binary)
To send messages to all hosts on the network at the same time.

26. What is 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
255.255.255.0
Class E (11110000--11111111 binary)
Private Use Class C
255.0.0.0

27. What is the IP address range for Class C?
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)
The Host address on the local network?
Experimental Use

28. What is the IP address range for Class D?
224-239 (11100000--11101111 binary)
The last octet is 255. (Verify)
Class E (11110000--11111111 binary)
1-126 (00000001--01111110 binary)

29. What is the default subnet mask for a Class B IP Address?
255.255.0.0
192-223 (11000000--11011111 binary)
1-126 (00000001--01111110 binary)
The Host address on the local network?

30. What is the IP address range for Class A?
N/a
The Broadcast address for the associated network.
255.255.255.0
1-126 (00000001--01111110 binary)

31. What is the default subnet mask for a Class D IP Address?
255.0.0.0
N/a
Loopback
255.255.255.0