CCNA真题(1)TCP/IP：地址和协议4

41: You are a network technician at Acme, Inc. You have subnetted the 192.168.72.0 network with a /30 mask for connections between your routers. Your boss asks you how many usable subnetworks and usable host addresses per subnet this will provide. What should you tell her, assuming your router cannot use ip subnet-zero?
B. 6 networks and 30 hosts
D. 16 networks and 16 hosts

A. 165.203.2.0
C. 165.203.6.63
E. 165.203.8.255
43: Identify three valid hosts in any subnet of 192.168.32.0, assuming the subnet mask used is 255.255.255.240. (Choose three.)
B. 192.168.32.112
D. 192.168.32.126
F. 192.168.32.208
44: A Class C network address has been subnetted with a /27 mask. Which of the following addresses is a broadcast address for one of the resulting subnets?
B. 198.57.78.64
D. 198.57.78.97
F. 198.57.78.254
45: What is the subnetwork address for a host with IP address 165.100.5.68/28?
B. 165.100.5.32
D. 165.100.5.65
F. 165.100.5.1
46: Your boss wants to know what TCP stands for. What do you tell him?
B. Transport Check Protocol
D. Transport Control Protocol
47: Your boss wants to know what UDP stands for. What do you tell him?
B. Unreliable Data Program
D. User Datagram Protocol
48: Which of the following statements accurately describes UDP?
B. UDP is a member of the TCP/IP suite of protocols that governs the exchange of electronic mail between message transfer agents.
D. UDP is a TCP complement that offers a connectionless datagram service guaranteeing neither delivery nor correct sequencing of delivered packets (much like IP).
49: Which of the following host addresses are members of networks that can be routed across the public Internet? (Choose three.)
B. 172.16.32.129
D. 192.168.23.252
F. 214.192.48.254
50: You are connecting your Serial 0/1 interface to the Internet. Which of the following need to be done for the connection to work? (Choose two.)
B. Use the shutdown command.
D. Make sure the interface is running in full-duplex.