Saturday, November 22, 2008

Subnetting #3

Find the Class each IP address belong to.

  1. 10.250.1.1
  2. 150.10.15.0
  3. 192.14.2.0
  4. 148.17.9.1
  5. 193.42.1.1
  6. 126.8.156.0
  7. 220.200.23.1
  8. 230.230.45.58
  9. 177.100.18.4
  10. 119.18.45.0
  11. 249.240.80.78
  12. 199.155.77.56
  13. 117.89.56.45
  14. 215.45.45.0
  15. 199.200.15.0
  16. 95.0.21.90
  17. 33.0.0.0
  18. 158.98.80.0
  19. 219.21.56.0

Network & Host Part Identification

Circle the network portion of these addresses:

177.100.18.4
119.18.45.0
209.240.80.78
199.155.77.56
117.89.56.45
215.45.45.0
192.200.15.0
95.0.21.90
33.0.0.0
158.98.80.0
217.21.56.0
10.250.1.1
150.10.15.0
192.14.2.0
148.17.9.1
193.42.1.1
126.8.156.0
220.200.23.1
10.15.123.50
171.2.199.31
198.125.87.177
223.250.200.222
17.45.222.45
126.201.54.231
191.41.35.112
155.25.169.227
192.15.155.2
123.102.45.254
148.17.9.155
100.25.1.1
195.0.21.98
25.250.135.46
171.102.77.77
55.250.5.5
218.155.230.14
10.250.1.1


Default Subnet Masks

Write the correct default subnet mask for each of the following addresses:

177.100.18.4 ____________________________

119.18.45.0 _____________________________

191.249.234.191 _________________________

223.23.223.109 _________________________

10.10.250.1 ____________________________

126.123.23.1 ___________________________

223.69.230.250 _________________________

192.12.35.105 __________________________

77.251.200.51 __________________________

189.210.50.1 __________________________

88.45.65.35 ___________________________

128.212.250.254 ________________________

193.100.77.83 __________________________

125.125.250.1 __________________________

1.1.10.50 _____________________________

220.90.130.45 _________________________

134.125.34.9 ___________________________

95.250.91.99 __________________________

Subnetting #2

Given an address and number of borrowed bits find the following information:

Address: 196.111.83.0
Number of Bits Borrowed: 5
Network Class__________________________
Number of Total Subnets _______________
Number of Total Hosts per subnet ________ Number of Usable Hosts_______
Default subnet mask ____________________
Subnet mask (after subnetting) _______________________________

Given an address and number of total subnets find the following information:

Address: 207.32.65.0
Number of Bits Borrowed: _________
Network Class_________
Number of Total Subnets: 8
Number of Total Hosts per subnet ________Number of Usable Hosts ________
Default subnet mask ____________________
Subnet mask (after subnetting) _______________________________


Given an address and number of total subnets find the following information:

Address: 183.41.0.0
Number of Bits Borrowed: _______
Network Class________
Number of Total Subnets: 254
Number of Total Hosts per subnet ________
Number of Usable Hosts ________
Default subnet mask ____________________
Subnet mask (after subnetting) _______________________________

Given an address and number of borrowed bits find the following information:

Address: 129.165.0.0
Number of Bits Borrowed: 4
Network Class__________________________
Number of Total Subnets _______________
Number of Total Hosts per subnet ________ Number of Usable Hosts ________
Default subnet mask ____________________
Subnet mask (after subnetting) _______________________________

Να βρείτε τα 3 ΤΕΛΕΥΤΑΙΑ subnets σε κάθε περίπτωση. (Network Address, Broadcast, 1st Host, Last Host)

Subnetting #1

1.Which IP addresses are network addresses? (Choose two.)

A.64.104.3.7/28
B.192.168.12.64/26
C.192.135.12.191/26
D.198.18.12.16/28
E.209.165.200.254/27
F.220.12.12.33/27

2.A network administrator is building a network for a small business that has 22 hosts. The ISP has assigned only one Internet routable IP address. Which IP address block can the network administrator use to address the network?

A.10.11.12.16/28
B.172.31.255.128/27
C.192.168.1.0/28
D.209.165.202.128/27

3.What subnet mask would be used with the hosts in the 128.107.176.0 /22 network?

A.255.0.0.0
B.255.248.0.0
C.255.255.252.0
D.255.255.255.0
E.255.255.255.252

4.You have been assigned the address block 10.255.255.224 /28 to create the network addresses for point-to-point WAN links. How many of these WANs can you support with this address block?

A.1
B.4
C.7
D.14

5.A network administrator needs to create a new network that has 14 computers and two router interfaces. What subnet mask will provide the appropriate number of IPv4 addresses for this network with minimal wasted addresses?

A.255.255.255.128
B.255.255.255.192
C.255.255.255.224
D.255.255.255.240
E.255.255.255.248
F.255.255.255.252

6.List the ranges of IPv4 addresses for private use.

Friday, November 21, 2008

Ερώτηση

Πόσα ms χρειάζεται ο instructor για να κάνει upload τις ασκήσεις με το subnetting???

Practice Plz

Καινούρια practice plz! Διψάμε για VLSM :P Παρακαλώ επιληφθείτε του θέματως ^_^

Tuesday, November 18, 2008

Practice #3

Από τις παρακάτω IPδιευθύνσεις να βρείτε την Network και την BroadcastAddress.

238.13.15.174/19
167.147.106.75/11
243.118.243.61/20
74.141.41.46/27
177.161.55.167/18
220.126.161.117/21
90.67.197.253/22
132.254.210.179/27
58.76.96.68/9
32.2.52.148/20
114.163.100.60/8
9.149.116.155/16
191.230.131.28/30
204.153.57.225/28
52.46.136.83/12
242.137.228.219/30
251.200.23.72/18
184.56.75.20/29
23.253.106.26/9
214.146.124.237/26
36.202.21.96/12
59.90.128.100/20
20.167.194.232/10
206.233.20.201/17
242.67.244.122/18
46.244.112.137/9
162.69.199.150/15
113.70.3.230/29

Ισχύει και για τα προηγούμενα posts. Μπορείτε να μου στείλετε τις απαντήσεις σας στο mail μου για διόρθωση.

Practice #2

Επειδή είδα κατά την διάρκεια του μαθήματος μια μικρή δυστοκία στις μετατροπές από δεκαδικό ορίστε μερικοί αριθμοί για μετατροπή:
158

12

173

49

232

232

129

52

188

80

186

110

96

123

77

222
111

200

69

122

239

107

11

80

208

147

206

22

255

240

248

252