1. Which action is the customer's responsibility under the AWS shared responsibility model? a. Securing the physical infrastructure b. Patching the underlying infrastructure c. Patching the network infrastructure d. Patching Amazon EC2 instances   2. A cloud administrator needs to store images that are uploaded by users through a mobile application. The solution needs to include security measures to avoid data loss. Which step or steps should they take to protect against unintended user actions? a. Upload the images to Amazon S3 by using presigned URLs. Employ strict bucket polices, and enable S3 Versioning. b. Store data in two Amazon S3 buckets in different AWS Regions. c. Store data in an Amazon Elastic Block Store (Amazon EBS) volume, and use AWS Certificate Manager to encrypt the data. d. Store data in an S3 bucket, and enable S3 Block Public Access.   3. Which of the following is the most suitable service to archive infrequently used data? a. Amazon S3 Standard-IA b. S3 Standard c. Amazon S3 Intelligent-Tiering d. Amazon S3 Glacier

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Network Security

The word "network security" refers to a wide range of technology, devices, and processes. In its most basic form, it is a combination of rules and configurations that use both hardware and software technologies to safeguard the confidentiality, integrity, and accessibility of computer networks and data. Every company, regardless of sector, size or infrastructure, needs network security solutions to protect itself from the ever-increasing landscape of cyber threats that exist today.