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Computer Engineering
Why DNS Caching

Why DNS Caching

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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2.4-2 Why DNS Caching? What is the value of caching in the local DNS name server? Check all that apply. Select one or more: O a. DNS caching provides the ability to serve as authoritative name server for multiple organizations. O b. DNS caching results in less load elsewhere in DNS, when the reply to a query is found in the local cache. c. DNS caching provides for faster replies, if the reply to the query is found in the cache. O d. DNS caching provides prioritized access to the root servers, since the DNS request is from a local DNS cache.
Transcribed Image Text:2.4-2 Why DNS Caching? What is the value of caching in the local DNS name server? Check all that apply. Select one or more: O a. DNS caching provides the ability to serve as authoritative name server for multiple organizations. O b. DNS caching results in less load elsewhere in DNS, when the reply to a query is found in the local cache. c. DNS caching provides for faster replies, if the reply to the query is found in the cache. O d. DNS caching provides prioritized access to the root servers, since the DNS request is from a local DNS cache.
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