ch03 IP Addressing.pdf - The Cisco Learning Network

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44 Chapter 3: IP Addressing 12. You are given a Class B network with a subnet mask of 255.255.255.192. How many host addresses are there on each subnet? A. 30 B. 62 C. 126 D. 254 Figure Out IP Address Components 13. You are given the following addressing information: 192.168.37.192/25. What type of address is this? A. Network B. Directed Broadcast C. Host 14. You are given the following addressing information: 172.17.16.255/23. What type of address is this? A. Network B. Directed Broadcast C. Host 15. You are given the following addressing information: 10.0.8.0/22. What type of address is this? A. Network B. Directed Broadcast C. Host 16. You are given a MAC address of 01A2.0482.FE12. What is the OUI value in binary? A. 00011011.10100010.00000100 B. 00000000.00000001.00000100 C. 00000001.10100010.00000100 D. 00000001.10100001.00000010
SELF TEST ANSWERS TCP/IP Protocol Stack 1. B. The TCP/IP protocol stack has 5 layers: Physical, Data Link, Internet, Transport, and Application. A, C, and D are incorrect. 2. D. UDP is more efficient than TCP since it doesn’t have the overhead associated with it that TCP has. For instance, UDP doesn’t go through a 3-way handshake to set up a connection and doesn’t use sequence and acknowledgment numbers to implement flow control. A, B, and C are all true concerning TCP: it provides reliable connections, windowing for flow control, and multiplexing for applications. 3. D. The TCP/IP protocol stack doesn’t have a Network layer…it has an Internet layer. A and B are transport layer protocols. C is an Internet layer protocol. IP Addressing Introduction 4. 193. 5. D. Class A addresses have 24 host bits and 8 networking bits. A is true for Class C networks. B is true for Class B networks. C can only be true for subnetted Class A and B networks. 6. B. 191.75.39.24 is a Class B network. Class B networks range from 128-191. A addresses range from 1-126. C addresses range from 192-223. Since there is an answer, D is incorrect. 7. D. It’s impossible to represent 256 in a byte--the values range from 0-255. A, B, and C are incorrect. Subnetting Self Test Answers 45 8. C. 255.255.254.0 is a valid subnet mask--the 1s and 0s must be contiguous. A has noncontiguous 1s. B is an inverted mask, with the network and host bits reversed. D has an invalid mask value in the fourth octet: 256. 9. Subnet mask. The function of a subnet mask is to differentiate between the network address, the host addresses, and the directed broadcast address.
Page 1 and 2: CERTIFICATION OBJECTIVES 3.01 TCP/I
Page 3 and 4: TABLE 3-1 Comparison of the OSI Ref
Page 5 and 6: application, your operating system
Page 7 and 8: A nice feature of this process is t
Page 9 and 10: TABLE 3-4 IP Datagram Components IP
Page 11 and 12: TCP/IP Protocol Stack 11 frame, wit
Page 13 and 14: DHCP allows devices to dynamically
Page 15 and 16: TABLE 3-6 Binary to Decimal to Hexa
Page 17 and 18: ■ Class A addresses range from 1-
Page 19 and 20: TABLE 3-7 Powers of 2 IP Addressing
Page 21 and 22: Subnet Masks For example, you might
Page 23 and 24: TABLE 3-8 Valid Subnet Mask Values
Page 25 and 26: When subnetting, depending on the d
Page 27 and 28: Remember that the exam might not al
Page 29 and 30: TABLE 3-12 Network numbers for 192.
Page 31 and 32: Step 6: Figure Out the Host Address
Page 33 and 34: CERTIFICATION OBJECTIVE 3.05 Figuri
Page 35 and 36: Remember the shortcut of figuring o
Page 37 and 38: Figuring Out IP Address Components
Page 39 and 40: has a directed broadcast address of
Page 41 and 42: Two-Minute Drill 41 Subnetting ❑
Page 43: 6. 191.75.39.24 is a Class ________

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