Which of the following commands verifies connectivity between two hosts?（）

单项选择题Which of the following is needed to perform an ASR restore in Windows XP?（）

A. Operating system CD
B. Recovery console
C. Vendor recovery CD
D. ERD disk

单项选择题Which of the following BEST describes the function of a DNS server?（）

A. Secures network traffic through shared key encryption.
B. Provides resolution of host names to IP addresses.
C. Provides security for a network through the use of ACLs.
D. Dynamically assigns IP addresses for easy client configuration.

单项选择题A user calls and says they cannot get to the Internet. How would a technician walk the user through checking the IP address and default Gateway on the computer?（）

A. Start>Run>type ipconfig>click OK and ask user to read the results.
B. Start>Run>type cmd>click OK>type ipconfig /flushdns>press enter and ask user to read the results.
C. Start>Run>type cmd>click OK>type ipconfig /release>press enter key and ask user to read the results.
D. Start>Run>type cmd>click OK>type ipconfig /all>press enter key and ask user to read the results.

多项选择题Which of the following bus speeds is used for a PCIe card?（）

A. 1x
B. 3x
C. 6x
D. 8x
E. 24x

单项选择题Which of the following connector types is used with twisted pair cable?（）

A. T-Connector
B. BNC
C. RJ-45
D. LC