Basic Networking Concepts

Question 1

name the key protocol used for voice and video. What is it’s secure version called?

Answer 1

RTP and SRTP

Question 2

IMAP4 port and protocol

Answer 2

TCP, 143

Question 3

Secure POP uses what two protocols/ports?

Answer 3

TLS on 995

STARTTLS on 110

Question 4

Secure IMAP can use TLS, which port?

Answer 4

993

Question 5

DNS client queries use xxx protocol and DNS zone transfers use xxx

Answer 5

UDP - clients

TCP protocol - zone transfers

Question 6

What DNS protocol provides validation for DNS responses and helps prevent DNS poisoning?

Answer 6

DNSSEC