You have an Exchange Server 2010 organization. Your network is separated from the Internet by a firewall. You need to identify the ports that must be opened on the firewall to allow clients from the Internet to usethe following connections methods:.Outlook Anywhere .Outlook Web App (OWA) .Exchange ActiveSync .IMAP4 over Secure Sockets Layer (SSL) Which TCP ports should you identify?()
A. 25, 443 and 993
B. 26, 443 and 995
C. 25, 80, 143, and 3269
D. 80, 143, 443, and 389
按使用频段分类,无线电台站可分为()。
A. 长波电台
B. 中波电台
C. 短波电台
D. 超短波电台
MPLS BGP VPN OSPF超级Backbone实现中BGP使用了以下哪两种属性()。
A. MED
B. Site of Origin
C. Weight
D. Extended Community
E. AS-PATH
大绳的长度应当是在大钩放到最低位置时,滚筒上尚有一层()圈的安全圈。