Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...
Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...
Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...
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Understanding Basic IP Routing 105<br />
Answers<br />
1. Correct answer and explanation: D. You add 128 + 64 for the first two<br />
ones to get 192.<br />
Incorrect answers and explanations: A, B, and C. Answer A is incorrect, 128<br />
would be 0<strong>11</strong><strong>11</strong><strong>11</strong>1. Answer B is incorrect, 191 would be 10<strong>11</strong><strong>11</strong><strong>11</strong>. Answer<br />
C is incorrect, 137 would be 1000100<strong>11</strong>.<br />
2. Correct answer and explanation: D. Addresses that begin with 224 are used<br />
for multicasting.<br />
Incorrect answers and explanations: A, B, and C. Answer A is incorrect,<br />
this is for network management. Answer B is incorrect, this is for browsing<br />
the web. Answer C is incorrect, this is for receiving e-mail.<br />
3. Correct answer and explanation: B. The system has failed to get an IP<br />
address from a DHCP server and has assigned itself an automatic private<br />
IP address, which only allows for local communication.<br />
Incorrect answers and explanations: A, C, and D. Answer A is incorrect,<br />
the system would not have been assigned a static IP address in this range.<br />
Answer C is incorrect, this is a valid private APIPA address. Answer D is<br />
incorrect, classless addressing is not a factor in this problem.<br />
4. Correct answer and explanation: A. The CIDR notation expresses how<br />
many bits are a part of the subnet mask. This address has 24 bits in the<br />
subnet mask.<br />
Incorrect answers and explanations: B, C, and D. Answer B is incorrect, this<br />
represents 255.0.0.0. Answer C is incorrect, this represents 255.255.0.0.<br />
Answer D is incorrect, this represents 255.255.252.0.<br />
5. Correct answer and explanation: B. This is a condensed notation for a<br />
IPV6 address. The full address would be fe80:0000:0000:0000:9c5f:9695:<br />
f235:0051.<br />
Incorrect answers and explanations: A, C, and D. Answer A is incorrect,<br />
an IPV4 address looks like this, 192.168.1.1. Answer C is incorrect, a MAC<br />
address looks like this AA:BB:CC:DD:EE:FF. Answer D is incorrect, a GUID<br />
is used in Microsoft’s Active Directory.
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