多项选择题
The response times on a Samba server are gradually increasing， so it is decided to experiment with various socket options in smb.conf. Which of the following are valid values for this parameter？（）
A. TCP_NODELAY B. SO_NOBROADCAST C. SO_TXBUF D. IPTOS_LOWDELAY E. SO_KEEPALIVE
单项选择题 HowisVFS（VirtualFileSystem）supportenabledinSamba？（）
多项选择题 WhichofthefollowingshouldbebackedupbeforeaSambaversionupgrade？（）
