Question
1. In DNS, we try to avoid/bypass root name servers to avoid overloading them and protect them from DoS attack ( TRUE OR FALSE )
1. In DNS, we try to avoid/bypass root name servers to avoid overloading them and protect them from DoS attack ( TRUE OR FALSE ) ?
2. Some application-layer protocols like HTTP and SMTP use TCP as their transport layer protocol and cannot use UDP instead because ( a or b or c or d or e ) ?
a. TCP was invented before UDP and these apps were designed on top of TCP
b. TCP provides fast end-to-end delivery of messages, and UDP doesn't
c. UDP is connection oriented and takes so much time at set-up phase
d. TCP provides reliable (without data loss), in-order delivery of messages, and UDP doesn't
e. TCP supports persistent connection and hence reduce overall response time
3. In computer networking, _________ is a software interface between the application and the network that enables processes to communicate
a. API
b. application
c. socket
d. process
4. In communication between processes, destination IP address is needed to reach the host, and the port number is needed to reach the specific process inside the destination host ( true or false )
5. In peer-to-peer architecture, the process that initiates/starts the communication is the client, and the process that waits to be contacted is the server ( true or false )
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