1. IP, TCP, DNS

2. IP TCP DNS https://www.youtube.com/watch?v=ThdO9beHhpA
DNS

3. Quiz
What IP/TCP stands for? IP a. International Project b. Internet Protocol c. Important Paper TCP a. Transportation Collision preventer b. Transmission Control Protocol c. Transatlantic Countries Prosperity
2. Why TCP is important? a. Because it guarantees that the information will be received without an error b. Because it creates comfortable environment c. Because it stimulates network traffic
3. What DNS stands for? a. Digital Notary Service b. Diverse Nomination Staff c. Domain Name system
4. How many bits have the IPv4 and IPv6 address? IPv4 a. 16 b. 24 c. 32
IPv6 a. 256 b. 64 c. 128

4. 5. When were the IPv4 and IPv6 developed? IPv4 a. 1969 b. 1980 c. 1985
6. What is host? a. owner b. boss c. computer in the network
7. What is host file? a. phone book b. host name-IP address directory c. host names directory
8. When was the concept of DNS created? a b c. 1982
9. What is TTL? a. Time-to-live b. Time-to-love c. Three times looser
10. What is caching? a. remembering b. hiding c. cheating
11. What is the recursive server a. A server performing DNS lookup on behalf of all ISP network hosts b. A server doing benchmarking c. A server making bookkeeping operations for the company