多项选择题
A.UDP provides delivery notification and error checking mechanisms.
B.UDP is faster than the Transmission Control Protocol (TCP).
C.UDP application examples include DNS and VoIP.
D.UDP is an application layer protocol.
E.UDP uses a best effort delivery approach.
多项选择题 Which three statements describe the Transmission Control Protocol (TCP)?（）
单项选择题 You are the network administrator setting up the IP network for a new branch office. You need at least 5 networks with 25 hosts each. You have been allocated a /24 network.Which prefix length will satisfy the given requirements?（）
多项选择题 Which two statements about subnet masks are true?（）