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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. If the first bit of the first octet is '0' what type of address is it?
The Host address on the local network?
Class A (00000001--01111110 binary)
255.255.255.0
To send messages to all hosts on the network at the same time.

2. What is 127.0.0.0 reserved for?
Private Use Class A
Class D (11100000--11101111 binary)
1-126 (00000001--01111110 binary)
Loopback

3. How do routers generally handle Private use addresses?
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
255.0.0.0
The Host address on the local network?
Experimental Use

4. If the first bits of the first octet are '10' what type of address is it?
Class B (10000000--10111111 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 A
Class C (11000000--11011111 binary)

5. What is an address of 0.0.0.0 used for?

6. What is 127.16.0.0 to 127.31.255.255 reserved for?
Loopback
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
255.255.255.0
Private Use Class B

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 default subnet mask for a Class E IP Address?
The last octet is 255. (Verify)
N/a
Class E (11110000--11111111 binary)
Multicast groups

9. If the first bits of the first octet are '1111' what type of address is it?
Class E (11110000--11111111 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
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

10. If the first bits of the first octet are '110' what type of address is it?
The Host address on the local network?
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
Class C (11000000--11011111 binary)
Private Use Class A

11. What is the Broadcast address used for?
Class B (10000000--10111111 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
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
To send messages to all hosts on the network at the same time.

12. What do you get when you set the Network portion of the address to 0s?
Class D (11100000--11101111 binary)
Multicast groups
The Host address on the local network?
255.255.255.0

13. What is the default subnet mask for a Class B IP Address?
Multicast groups
255.255.0.0
Class B (10000000--10111111 binary)
Class E (11110000--11111111 binary)

14. What is 10.0.0.0 to 10.255.255.55 reserved for?
255.0.0.0
Private Use Class C
240-255 (11110000--11111111 binary)
Private Use Class A

15. What is the default subnet mask for a Class A IP Address?
255.0.0.0
The Host address on the local network?
Experimental Use
128-191 (10000000--10111111 binary)

16. What is 192.168.0.0 to 192.168.255.255 reserved for? reserved for?
To send messages to all hosts on the network at the same time.
Loopback
Multicast groups
Private Use Class C

17. What does the subnet mask and/or the address class specify?
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.
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)

18. What are Class D addresses reserved for?
224-239 (11100000--11101111 binary)
Class B (10000000--10111111 binary)
Multicast groups
The last octet is 255. (Verify)

19. What is the IP address range for Class A?
The last octet is 255. (Verify)
1-126 (00000001--01111110 binary)
Class D (11100000--11101111 binary)
Private Use Class B

20. What are the two parts of an IP address?
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
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
Private Use Class C

21. What are Class E addresses reserved for?
Network address & Host address
Experimental Use
192-223 (11000000--11011111 binary)
The Host address on the local network?

22. If the first bits of the first octet are '1110' what type of address is it?
The Broadcast address for the associated network.
Loopback
Class D (11100000--11101111 binary)
128-191 (10000000--10111111 binary)

23. What do you get if you set the Host address to all one?
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.
Class B (10000000--10111111 binary)
Network address & Host address

24. What do you see in a Broadcast address regardless of format?
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
The last octet is 255. (Verify)
Class D (11100000--11101111 binary)

25. What is the default subnet mask for a Class C IP Address?
Class D (11100000--11101111 binary)
Private Use Class A
255.255.255.0
128-191 (10000000--10111111 binary)

26. What is the IP address range for Class B?
Class B (10000000--10111111 binary)
Class E (11110000--11111111 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.

27. What is the IP address range for Class C?
192-223 (11000000--11011111 binary)
128-191 (10000000--10111111 binary)
Experimental Use
N/a

28. What is the characturistic of a network address?

29. What is the IP address range for Class D?
224-239 (11100000--11101111 binary)
Class E (11110000--11111111 binary)
240-255 (11110000--11111111 binary)
Class A (00000001--01111110 binary)

30. What is the IP address range for Class E?
To send messages to all hosts on the network at the same time.
240-255 (11110000--11111111 binary)
Routers connected to the Internet typically filter messages within these ranges and prevent them from being propagated to the Internet.
N/a

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