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70-642

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Submitted By cuzinchris13
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Pages 7
Lesson 3

Answers for Knowledge Assessment

Matching

1. e 2. h 3. f 4. a 5. d 6. b 7. g 8. i 9. c 10. j

Multiple Choice

1. c When a DHCP-configured computer boots up, it will broadcast a DHCPDISCOVER packet to locate any available DHCP server in order to request DHCP IP address information. 2. c DHCP operates at the Application Layer of the OSI model. 3. a The TFTP protocol is a lightweight alternative to FTP. It is capable of this level of efficiency because it uses the connectionless User Datagram Protocol (UDP) for communication rather than the acknowledgement-based Transmission Control Protocol (TCP). 4. b T1 is a time indicator that corresponds to 50% of the DHCP lease time; T2 corresponds to 87.5% of the total DHCP lease time. 5. b A DHCP server will hand out IP addresses to requesting clients from its available address pool, which consists of the total address range less any IP addresses that have been configured as exclusions from the available range. 6. c The TFTP protocol was used by BOOTP, the predecessor to DHCP, which was used to provide automatic IP addressing information to diskless workstations. 7. c When you reconcile a server or a scope, the DHCP service uses both the summary information in the registry and the detailed information in the DHCP database to reconstruct the most current view of the DHCP service. 8. c Superscopes contain only a list of member scopes or child scopes that can be activated together; they are not used to configure other details about scope use. 9. c The checkpoint file is used to indicate the last successful write to the database file, such as in cases in which a server is shut down unexpectedly and transactions exist in the log files that may not have been committed to the database on disk. 10. a Each NIC has a

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