name the key protocol used for voice and video. What is it’s secure version called?
RTP and SRTP
IMAP4 port and protocol
TCP, 143
Secure POP uses what two protocols/ports?
TLS on 995
STARTTLS on 110
Secure IMAP can use TLS, which port?
993
DNS client queries use xxx protocol and DNS zone transfers use xxx
UDP - clients
TCP protocol - zone transfers
What DNS protocol provides validation for DNS responses and helps prevent DNS poisoning?
DNSSEC