When a query is submitted for a nonexistent record, the DNS server returns the NSEC record prior to where the nonexistent record would have been in the order. This allows for something called authenticated denial of existence.NSEC3 is a replacement or alternative to NSEC that has the ...
The other problem I see is that you are saying the purchase to ingredient mapping is many to 1. So 1 ingredient can have many entries in the purchase table. How do you decide which entry to use in the purchase table for Steak (using my example again)? Are you looking for the cheapest...
when the client queries a single DNS server. The process occurs when a DNS server and client are first started and have no locally cached information available to help resolve a name query. It assumes that the name queried by the client is for a domain name about which the server has no...
The following query fails in postgres with the error "aggregate functions are not allowed in a recursive query's recursive term": WITH RECURSIVE x(n) AS (SELECT 1 UNION ALL SELECT count(*) FROM x) SELECT * FROM x; In CRDB, this does not result in an error, and thus never terminates...
In the configuration file for postgresql for example you would do:[psql] dbname = "your_database_name"When you use an environment variable it must also be prefixed by the driver name:PSQL_DBNAME="your_database_name"The values that exist for the drivers:NameRequiredPostgres DefaultMySQL ...
Domain Name System (DNS) caches are also vulnerable tocyber attackslikeDNS cache poisoning (or DNS spoofing). DNS cache poisoning occurs when false DNS information is introduced into a DNS resolver's cache. This information causes DNS queries to return an incorrect response, which commonly redirect...
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《RAPTOR: Recursive Abstractive Processing for Tree-Organized Retrieval》 摘要 译文地址 原文地址 《Blended RAG: Improving RAG Accuracy with Semantic Search and Hybrid Query-Based Retrievers》 简介 译文地址 原文地址 《RAGAR, Your Falsehood RADAR: RAG-Augmented Reasoning for Political Fact-Checking using...
When the DNS resolver receives your request, it queries the Domain Name System to determine the IP address. These queries may be "recursive," "non-recursive," "iterative," or a combination of these.The following steps occur in a commonly-used recursive Domain Name System:The DNS resolver ...
The recursive tree is logN layers deep, each query exists in no more than logN layers, and in each layer you do O(N) operation. Therefore this algorithm runs in O((N+q)∗logN), and O(N+q) memory. Can you shed some more light on how the memory is O(N+q), what is being ...