单项选择题
A. Changing the DNS to 172.16.1.100
B. Changing the WINS server to 172.174.136
C. Changing the netmask to 255.255.255.0
D. Changing the default gateway to 172.16.3.1
单项选择题 A technician temporarily needs an additional network connection in their office to test a newworkstation. Which of the following is the BEST solution to add a temporary network connection?（）
单项选择题 A network at a small business utilizes a star topology and is experiencing frequent collisionsamong data packets. Which of the following devices is MOST likely being used?（）
单项选择题 Which of the following is the full range of address block 192.16876.0/23?（）
