Web Protocols Advanced Quiz 2
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Web Protocols Advanced Quiz 2
1. What is an "EDNS" (Extension Mechanisms for DNS)?
A way to buy domain names cheaper
A protocol for hiding DNS servers
Extensions for larger DNS packets and more flags.
2. What is a "DNS Zone Transfer" (AXFR)?
Replicating DNS databases across servers.
Moving a domain from one registrar to another
Changing an IP address to a hostname
3. Which port does DNS normally use for Zone Transfers (which require reliability)?
UDP 53
TCP 53
HTTP 80
4. What is "DoH" (DNS over HTTPS)?
DNS resolution via HTTPS for privacy.
A way to host websites inside a DNS record
A tool for checking if a website is down
5. What is the function of a "DS" (Delegation Signer) record in DNSSEC?
To encrypt the actual web content
To list the email servers of a company
Linking the chain of trust between DNS zones.
6. What is "Split-Horizon DNS"?
DNS that only works during the day
Different DNS responses based on source IP.
A way to combine two different domain names
7. What does an "SRV" (Service) record define?
Hostname and port for specific services.
The speed of the server's CPU
The number of visitors on a site
8. What is "DANE" (DNS-based Authentication of Named Entities)?
A protocol for naming files
A way to find local printers
Binding X.509 certificates to DNS names.
9. What is a "Canonical Name" (CNAME) record limitation?
It cannot be used for web servers
Cannot coexist with other records for the same name.
It only works with IPv4
10. What is "DNS Prefetching"?
Resolving domain names before a link is clicked.
A way to download the entire internet
A tool for finding deleted domains
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