CCNA真题(1)TCP/IP：地址和协议3

 26: You are given an IP network of 192.168.5.0 and told that you need to separate this network into subnetworks that can support a maximum of 16 hosts per subnet. This will help alleviate congestion on the network. What subnet mask can you use to create the subnets necessary to meet the given criteria?
B. 255.255.0.0
D. 255.255.255.224

A. Government agency
C. SOHO

A. 192.168.5.95
C. 192.168.5.128

A. 2.3.4.5
C. 165.23.224.2
E. 203.33.45.22
30: You are given a Class B network. What is the default subnet mask assigned to the Class B network?
B. 255.255.0.0
D. 0.0.0.0
31: You are troubleshooting your router's interfaces. For some reason, the Ethernet interface will not accept the IP address of 192.168.5.95/27 that you've assigned. Which of the following explains the router's refusal to take the IP address?
B. The /27 is an invalid mask.
D. It is a public IP address.

A. 255.255.255.254
C. 255.255.240.254

A. 192.168.2.24/192.168.2.31
C. 192.168.2.40/192.168.2.47
E. 192.168.2.56/192.168.2.63
34: One of your co-workers at Acme, Inc., needs to convert the binary number 11011010 into a decimal. What is the decimal equivalent?
B. 219
D. 221

A. 75
C. 90

A. 198
C. 252

A. 182
C. 202

A. 15.234.118.63
C. 134.178.18.56
E. 201.45.116.159

A. 62 networks and 2 hosts
C. 8 networks and 32 hosts
E. 16 networks and 14 hosts
A. Packet acknowledgment might add overhead.
C. Loss or duplication of data packets is more likely to occur.