Podcast
Questions and Answers
What is the main purpose of DNS?
What is the main purpose of DNS?
- To translate IP addresses into domain names
- To provide security for internet connections
- To create a hierarchical structure for the Internet
- To map domain names to IP addresses (correct)
What is the role of the Resolver in DNS?
What is the role of the Resolver in DNS?
- Creating top-level domains
- Initiating DNS requests
- Mapping names onto IP addresses (correct)
- Partitioning domains into sub-domains
How are domains represented in the DNS name space?
How are domains represented in the DNS name space?
- Using hexadecimal notation
- In a tree structure (correct)
- As a matrix of IP addresses
- As linear sequences of characters
What does cybersquatting refer to?
What does cybersquatting refer to?
Which part of the DNS name space represents domains with no sub-domains?
Which part of the DNS name space represents domains with no sub-domains?
Why is it important for an application program to use DNS for domain name resolution?
Why is it important for an application program to use DNS for domain name resolution?
What is a disadvantage of using HTTP for communication and data transfer?
What is a disadvantage of using HTTP for communication and data transfer?
Why is HTTP considered less secure compared to HTTPS?
Why is HTTP considered less secure compared to HTTPS?
What is a characteristic of HTTP pipe-lining?
What is a characteristic of HTTP pipe-lining?
Why does the client not close the connection until it receives complete data from the server in HTTP?
Why does the client not close the connection until it receives complete data from the server in HTTP?
How does HTTP differ from HTTPS in terms of data security?
How does HTTP differ from HTTPS in terms of data security?
What is the purpose of a URL in identifying web pages?
What is the purpose of a URL in identifying web pages?
Which part of a URL uniquely indicates the specific web page?
Which part of a URL uniquely indicates the specific web page?
What does HTTP stand for in the context of web communication?
What does HTTP stand for in the context of web communication?
Why is a DNS name important in identifying web pages?
Why is a DNS name important in identifying web pages?
What role does a protocol play in a URL scheme?
What role does a protocol play in a URL scheme?
Which part of a URL indicates the scheme for accessing the web page?
Which part of a URL indicates the scheme for accessing the web page?
What is the term used to describe the query method where if a local server cannot satisfy a request, it forwards the query to the next server?
What is the term used to describe the query method where if a local server cannot satisfy a request, it forwards the query to the next server?
Which subsystem of e-mail systems allows people to read and send e-mails?
Which subsystem of e-mail systems allows people to read and send e-mails?
What function of e-mail systems involves moving messages from the originator to the recipient?
What function of e-mail systems involves moving messages from the originator to the recipient?
Which function of e-mail systems is related to informing the originator about what happened to the message?
Which function of e-mail systems is related to informing the originator about what happened to the message?
In the context of e-mail systems, what does 'Composition' refer to?
In the context of e-mail systems, what does 'Composition' refer to?
What basic function of e-mail systems involves displaying incoming messages for users to read their email?
What basic function of e-mail systems involves displaying incoming messages for users to read their email?
