N10-004单项选择题每日一练(2019.01.21)

单项选择题
A user is attempting to connect to the network remotely using a laptop and dial-up. The user plugsthe cable into the only available laptop connection, but the connector is loose inside the port. TheMOST likely reason the connector is loose is the:（）
A. RJ-11 connector needs to be re-crimped
B. User has plugged into the laptop's NIC port
C. User has plugged the wrong end of the cable into the port
D. RJ-11 connector needs to be replaced with an RJ-45 connector
单项选择题
Which of the following would contain information regarding network device alerts using SNMP?（）
A. Syslog
B. Audit log
C. History log
D. Ping sweep reports
单项选择题
For security reasons a network technician wants to install a Linux based email server, Microsoftweb services, and directory services on different servers.Which of the following technologies would be BEST to reduce hard ware costs?（）
A. VPN concentrator
B. Virtual servers
C. Wireless
D. Multimode fiber
单项选择题
A link light on a switch is an example of which of the following Ethernet properties?（）
A. Collision detection
B. Multiple access points
C. Carrier sense
D. Collision avoidance
单项选择题
On a Windows network, users are reporting that they cannot access any network resources. The userscan ping the IP address and connect to the network resource using the IP address.Which of the following is the cause of the problem?（）
A.The file server is offline.
B.The DNS server is not resolving correctly.
C.The DHCP server is not assigning correct IP addresses.
D.The domain controller is not responding.