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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 127.16.0.0 to 127.31.255.255 reserved for?
Loopback
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 B
255.255.255.0

2. What is the characturistic of a network address?

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3. What is the default subnet mask for a Class D IP Address?
Private Use Class C
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)
N/a

4. What is the IP address range for Class E?
240-255 (11110000--11111111 binary)
224-239 (11100000--11101111 binary)
Class E (11110000--11111111 binary)
192-223 (11000000--11011111 binary)

5. What is the Broadcast address used for?
240-255 (11110000--11111111 binary)
255.255.0.0
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.
To send messages to all hosts on the network at the same time.

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

7. What are the two parts of an IP address?
Private Use Class B
Network address & Host address
Private Use Class A
255.0.0.0

8. If the first bits of the first octet are '110' what type of address is it?
Class D (11100000--11101111 binary)
Loopback
Class C (11000000--11011111 binary)
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 is the IP address range for Class C?
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.
255.0.0.0
The Broadcast address for the associated network.

10. If the first bit of the first octet is '0' what type of address is it?
Multicast groups
N/a
Class A (00000001--01111110 binary)
Class B (10000000--10111111 binary)

11. 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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12. What is the default subnet mask for a Class A IP Address?
255.0.0.0
N/a
Network address & Host address
Private Use Class C

13. What is the IP address range for Class D?
192-223 (11000000--11011111 binary)
Class E (11110000--11111111 binary)
The Host address on the local network?
224-239 (11100000--11101111 binary)

14. What are Class D addresses reserved for?
Private Use Class C
Experimental Use
Multicast groups
255.255.0.0

15. What do you see in a Broadcast address regardless of format?
The Host address on the local network?
To send messages to all hosts on the network at the same time.
Class B (10000000--10111111 binary)
The last octet is 255. (Verify)

16. If the first bits of the first octet are '10' what type of address is it?
Multicast groups
Class D (11100000--11101111 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
Class B (10000000--10111111 binary)

17. What is the IP address range for Class A?
1-126 (00000001--01111110 binary)
Experimental Use
Private Use Class 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

18. What are Class E addresses reserved for?
224-239 (11100000--11101111 binary)
The Host address on the local network?
Experimental Use
Private Use Class C

19. If the first bits of the first octet are '1111' what type of address is it?
Class E (11110000--11111111 binary)
1-126 (00000001--01111110 binary)
Class D (11100000--11101111 binary)
224-239 (11100000--11101111 binary)

20. What is 10.0.0.0 to 10.255.255.55 reserved for?
The Broadcast address for the associated network.
Class B (10000000--10111111 binary)
Private Use Class 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

21. What is 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
Private Use Class C
255.255.255.0
N/a
N/a

22. What does the subnet mask and/or the address class specify?
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
1-126 (00000001--01111110 binary)
255.255.255.0

23. How do routers generally handle Private use addresses?
Class C (11000000--11011111 binary)
Loopback
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.

24. What is the default subnet mask for a Class E IP Address?
N/a
192-223 (11000000--11011111 binary)
Network address & Host address
224-239 (11100000--11101111 binary)

25. What do you get if you set the Host address to all one?
N/a
The Broadcast address for the associated network.
To send messages to all hosts on the network at the same time.
Loopback

26. What is the IP address range for Class B?
128-191 (10000000--10111111 binary)
255.255.255.0
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

27. What is an address of 0.0.0.0 used for?

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28. What do you get when you set the Network portion of the address to 0s?
The Host address on the local network?
240-255 (11110000--11111111 binary)
Network address & Host address
Class A (00000001--01111110 binary)

29. What is 127.0.0.0 reserved 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
Loopback
The last octet is 255. (Verify)
255.255.0.0

30. If the first bits of the first octet are '1110' what type of address is it?
Class D (11100000--11101111 binary)
255.0.0.0
Private Use Class B
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

31. What is the default subnet mask for a Class C IP Address?
Class A (00000001--01111110 binary)
255.255.255.0
The Host address on the local network?
N/a