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?（）

A. Unmanaged switch
B. Hardware firewall
C. Hub
D. Managed switch

单项选择题Which of the following is the full range of address block 192.16876.0 23?（）

A.192.168.76.0-192.168.77.255
B.192.168.76.0-192.168.76.255
C.192.168.76.0-192.168.76.23
D.192.168.76.0-192.168.780

单项选择题Which of the following improves wireless performance by allowing only one wireless transmissionon the network at a time?（）

A. CSMA/CA
B. CSMA/CD
C. Wireless encryption
D. Wireless bonding

单项选择题An administrator wants to limit access of a wireless network without requiring authorized users to enter a password or network key. Which of the following methods would MOST likely be implemented on the wireless network?（）

A. Disable SSID
B. WPA
C. MAC filtering
D. RAS

单项选择题Which of the following mitigation techniques would an administrator apply to a device in order torestrict remote access?（）

A. Disable TELNET
B. Disable IGMP snooping
C. Enable TELNET but not SSL
D. Disable ICMP/ping on device