<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>https://perfectnotes.org/</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>1</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/about</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.6</priority>
</url>
<url>
<loc>https://perfectnotes.org/about/narayanam</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.6</priority>
</url>
<url>
<loc>https://perfectnotes.org/contact</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>yearly</changefreq>
<priority>0.5</priority>
</url>
<url>
<loc>https://perfectnotes.org/privacy</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>yearly</changefreq>
<priority>0.3</priority>
</url>
<url>
<loc>https://perfectnotes.org/terms</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>yearly</changefreq>
<priority>0.3</priority>
</url>
<url>
<loc>https://perfectnotes.org/disclaimer</loc>
<lastmod>2026-04-26</lastmod>
<changefreq>yearly</changefreq>
<priority>0.3</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/introduction</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/cia-triad</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/cyberspace</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/threats-and-vulnerabilities</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/firewalls</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/zero-trust-architecture</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/cryptography</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/symmetric-vs-asymmetric-encryption</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/cloud-security</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/mobile-security</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/mobile-platform-security-models</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/phishing-social-engineering</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/cyber-crimes</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/incident-response</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/data-protection-privacy</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/cyber-laws-ethics</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/application-security</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/compliance-regulations</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/cyber-forensics</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/malware</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/openvas-gvm</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/owasp-top-10</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/penetration-testing</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/post-quantum-cryptography</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/vpn</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/web-security</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/cybersecurity/wireguard-vs-openvpn-vs-ipsec</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/introduction</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/types-of-operating-systems</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/kernel-mode-user-mode</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/os-services</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/system-calls</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/users-programmer-view</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/file-systems</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/disk-organization-scheduling</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/tape-organization</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/disk-scheduling-algorithms</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/operating-systems/cpu-scheduling-algorithms</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/dbms</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/dbms/database-normalization</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/dbms/sql-vs-nosql</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/dbms/acid-properties</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/agentic-ai-security-and-shadow-ai</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/identity-and-access-management-for-ai</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/prompt-injection-and-llm-vulnerabilities</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/social-engineering-via-deepfakes</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/ai-driven-threat-hunting-and-soc-automation</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/aws-vs-azure-vs-gcp</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/ec2-vs-azure-vms-vs-gce</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/docker-vs-virtual-machines</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/kubernetes</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/iaas-vs-paas-vs-saas</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/rest-vs-graphql-vs-grpc</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/ai-cloud-security/oauth2-vs-jwt</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/computer-networks</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/computer-networks/osi-model</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/computer-networks/ipv4-vs-ipv6</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/mcq/computer-networks/subnetting</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/cybersecurity</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/cybersecurity/top-50-cybersecurity-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/ai-cloud-security</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/ai-cloud-security/top-50-ai-cloud-security-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/artificial-intelligence</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/artificial-intelligence/top-50-ai-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/ml</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/ml/top-50-ml-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/deep-learning</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/deep-learning/top-50-dl-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/data-science</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/data-science/top-50-ds-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/operating-systems</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/operating-systems/top-50-os-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/computer-networks</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/computer-networks/top-50-cn-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/coa</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/coa/top-50-coa-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/dbms</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/dbms/top-50-dbms-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/sql</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/sql/top-50-sql-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/python</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/python/top-50-python-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/java</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/java/top-50-java-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/cpp</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/cpp/top-50-cpp-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/oop</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/oop/top-50-oop-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/dsa</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/dsa/top-50-dsa-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/software-engineering</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/software-engineering/top-50-software-engineering-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/coding</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/coding/top-50-coding-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/web-development</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/web-development/top-50-web-development-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/toc</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/toc/top-50-toc-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/compiler-design</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/compiler-design/top-50-compiler-design-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/computer-graphics</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/computer-graphics/top-50-computer-graphics-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/distributed-systems</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/distributed-systems/top-50-distributed-systems-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/system-design</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/interview-questions/system-design/top-50-system-design-interview-questions</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/introduction</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/cyberspace</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/cia-triad</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/threats-vulnerabilities</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/firewall</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/zero-trust-architecture</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/cryptography</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/symmetric-vs-asymmetric-encryption</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/openvas</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/web-security</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/owasp-top-10</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/application-security</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/mobile-security</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/mobile-platform-security-models</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/cloud-security</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/phishing-social-engineering</loc>
<lastmod>2026-03-02</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/malware</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/cyber-crimes</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/incident-response</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/cyber-forensics</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/data-protection-privacy</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/cyber-laws-ethics</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/compliance-regulations</loc>
<lastmod>2026-02-16</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/post-quantum-cryptography</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/vpn</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/vpn-protocol-comparison</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/cybersecurity/penetration-testing</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/introduction</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/types-of-os</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/services</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/system-calls</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/kernel-vs-user-mode</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/cpu-scheduling</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/file-systems</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/disk-organization</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/disk-scheduling-algorithms</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/tape-organization</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/operating-systems/user-programmer-view</loc>
<lastmod>2026-05-17</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/agentic-ai-security</loc>
<lastmod>2026-02-20</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/iam-for-ai</loc>
<lastmod>2026-02-20</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/prompt-injection-llm-vulnerabilities</loc>
<lastmod>2026-02-20</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/deepfake-social-engineering</loc>
<lastmod>2026-02-22</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/ai-threat-hunting-soc-automation</loc>
<lastmod>2026-02-24</lastmod>
<changefreq>monthly</changefreq>
<priority>0.85</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/aws-azure-gcp-cloud-comparison</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/ec2-azure-vm-google-compute-engine</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/docker-vs-vm</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/kubernetes</loc>
<lastmod>2026-02-28</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/iaas-paas-saas</loc>
<lastmod>2026-02-28</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/rest-graphql-grpc</loc>
<lastmod>2026-03-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/oauth-jwt</loc>
<lastmod>2026-03-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/ai-cloud-security/microservices-vs-monolith</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/computer-networks</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/computer-networks/introduction</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/computer-networks/tcp-ip-model</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/computer-networks/dns</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/computer-networks/osi-model</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/computer-networks/ipv4-vs-ipv6</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/computer-networks/subnetting</loc>
<lastmod>2026-02-27</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/introduction</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/er-model</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/database-normalization</loc>
<lastmod>2026-03-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/sql-vs-nosql</loc>
<lastmod>2026-03-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/acid-properties</loc>
<lastmod>2026-03-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/concurrency-control</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/indexing-and-hashing</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/relational-algebra</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
<url>
<loc>https://perfectnotes.org/notes/dbms/sql-fundamentals</loc>
<lastmod>2026-06-03</lastmod>
<changefreq>monthly</changefreq>
<priority>0.88</priority>
</url>
</urlset>
