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You're reading from  ISACA Certified in Risk and Information Systems Control (CRISC®) Exam Guide

Product typeBook
Published inSep 2023
PublisherPackt
ISBN-139781803236902
Edition1st Edition
Concepts
Cybersecurity
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Author (1)
Shobhit Mehta
Shobhit Mehta
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Shobhit Mehta

Shobhit Mehta is the Security and Compliance Director at Headspace, an on-demand mental health company in San Francisco, CA. Previously, he worked in different facets of security and assurance with HSBC, Deutsche Bank, Credit Suisse, PayPal, and Fidelity Investments. He also works with ISACA to develop exam questions for CISA, CISM, and CGEIT, served as the technical reviewer for the CGEIT and CISA review manuals, and is a published author for the COBIT 5 journal. He completed his MS in cybersecurity at Northeastern University, Boston, and holds CRISC, CISM, CISA, CGEIT, CISSP, and CCSP certifications. In his spare time, he likes to explore the inclined trails of the Bay Area, complete ultramarathons, and blog on GRCMusings.
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The Domain Name System

The DNS is a critical component of the internet that acts as a directory for internet domain names and their corresponding IP addresses. Essentially, it acts as a telephone book for the internet, allowing you to associate a memorable and recognizable domain name (for example, www.grcmusings.com) with a series of numbers that make up the IP address (for example, 162.241.252.221).

When you type a URL or domain name into your web browser, your computer sends a request to a DNS server to convert the domain name into an IP address. The DNS server then returns the IP address for the domain name, which the browser uses to connect to the website’s server and display the website’s content.

For example, if you type www.grcmusings.com into your web browser, the DNS server will translate the domain name into 162.241.252.221, which is the GRCMusings site’s IP address. The browser then uses this IP address to connect to the website’s server...

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ISACA Certified in Risk and Information Systems Control (CRISC®) Exam Guide
Published in: Sep 2023Publisher: PacktISBN-13: 9781803236902
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Shobhit Mehta

Shobhit Mehta is the Security and Compliance Director at Headspace, an on-demand mental health company in San Francisco, CA. Previously, he worked in different facets of security and assurance with HSBC, Deutsche Bank, Credit Suisse, PayPal, and Fidelity Investments. He also works with ISACA to develop exam questions for CISA, CISM, and CGEIT, served as the technical reviewer for the CGEIT and CISA review manuals, and is a published author for the COBIT 5 journal. He completed his MS in cybersecurity at Northeastern University, Boston, and holds CRISC, CISM, CISA, CGEIT, CISSP, and CCSP certifications. In his spare time, he likes to explore the inclined trails of the Bay Area, complete ultramarathons, and blog on GRCMusings.
Read more about Shobhit Mehta

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