51CTO下载-CCNA作业3.doc

1. What is the decimal and hexadecimal equivalent of the binary number 10101010?A. Decimal 100, hexadecimal 3ef2B. Decimal 150, hexadecimal ABC. Decimal 170, hexadecimal AAD. Decimal 180, hexadecimal FF2. Which of the following statements are true? (Choose five options.)A. IP is connectionless and provides routing.B. ARP is used to find an IP address of a host.C. UDP is connectionless.D. TCP is connection oriented.E. TCP uses windowing as a flow control method.F. ICMP is used to manage data to routers.G. ARP is used to find a hardware address from a known IP address.3. What is the address range of a Class C network address?A. 0127B. 1126C. 128191D. 1922234. What protocol is used to find the hardware address of a local device?A. RARPB. ARPC. IPD. ICMPE. BootP5. What are the two most common elements of a request/reply pair with ICMP messages when using the Ping program?A. Echo replyB. Echo requestC. Destination unreachableD. Source quench6. Which class of IP address provides a maximum of only 254 host addresses per network ID?A. Class AB. Class BC. Class CD. Class DE. Class E7. Which two protocol tools use ICMP?A. TelnetB. PingC. ARPD. Traceroute8. Which of the following is a true statement?A. MAC address broadcasts are all zeros.B. MAC addresses are defined at the Physical layer.C. MAC addresses are used by bridges and switches to make forwarding/filtering decisions.D. IP addresses allow a flat address scheme, whereas MAC addresses are hierarchical.9. What is the address range of a Class B network address?A. 0127B. 1126C. 128191D. 19222310. What is the result of using a hierarchical addressing scheme?A. Increased number of addressesB. Decreased amount of routers neededC. Increased memory usage on routersD. No routing tables needed on routers11. Which of the following statements are true? (Choose two.)A. TCP is connection-oriented but doesnt use flow control.B. IP is not necessary on all hosts that use TCP.C. ICMP must be implemented by all TCP/IP hosts.D. ARP is used to find a hardware address from a known IP address.12. Which of the following are the Internet Protocol (IP) protocols used at the Application layer of the OSI model? (Choose three.)A. IPB. TCPC. TelnetD. FTPE. TFTP13. You have the following binary number: 10110011. Which two of the following are equivalentto this?A. 128B. 179C. 184D. 0xACE. 0x3CF. 0xB314. If you use either Telnet or FTP, which is the highest layer you are using to transmit data?A. ApplicationB. PresentationC. SessionD. Transport15. The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI model?A. ApplicationB. Host to HostC. InternetD. Network Access16. You have the following binary number: 11000111. Which two of the following are equivalentto this?A. 228B. 179C. 199D. 0xC7E. 0x3CF. 0xB717. What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model?A. ApplicationB. Host to HostC. InternetD. Network Access18. What is the address range of a Class A network address in binary?A. 01xxxxxxB. 0xxxxxxxC. 10xxxxxxD. 110xxxxx19. What is the address range of a Class B network address in bin