技术解读

以下内容由 GitRead 中文社区 编辑团队基于项目 README 与官方资料整理, 结合中文开发者的常见使用场景补充技术选型建议。具体以项目官方文档为准。

深度技术分析:Ditectrev 的 AWS 认证练习题库

项目背景与痛点

随着 AWS 认证需求的日益增长,开发者和架构师们面临着高难度的备考任务。官方文档虽然详尽,但真实考试中的实践题目,特别是那些模拟实战情境的题目,往往需要更为系统的准备。在这种背景下,Ditectrev 创建了这个仓库,提供了大量的 SAA-C03 实践测试题和解答。这不仅帮助考生加深理解 AWS 的服务和配置细节,还能够快速纠错,使得备考过程更有针对性和有效性。

核心技术揭秘

这个项目本质上是一个试题合集,但并没有系统的技术栈或复杂的算法。通过分析,我们可以得知其背后的策略在于高效组织内容并提供有效的反馈机制。

技术架构

本项目的核心在于数据的组织形式。具体的实现可能依赖于前端或后端技术来展示和提交问题答案,而数据持久化则依赖仓库中的 Markdown 文件和 JSON 数据结构。这种方式简单直接,易于维护,同时也方便了广大开发者快速获取和编辑内容。

graph TD A[用户访问页面] --> B[加载试题数据] B --> C{"提交答案?"} C -->|"是"| D[验证答案] C -->|"否"| E[显示题目及解析] D --> F{"正确?"} F -->|"是"| G[显示正确提示] F -->|"否"| H[显示错误提示] G --> E H --> E

这种交互过程确保了用户能够在测试完成后获得即时的反馈,而不是单一地给出答案,增强了用户体验。同时,也使得这一考试预备工具更具吸引力。

功能亮点与差异

核心亮点

  • 精心设计的问题:习题涵盖了多个AWS服务的关键知识点,专注于实践中的难题和容易被忽略的细节。
  • 即时反馈结果:提交答案后,会立即显示正确或错误,以帮助考生及时了解情况。
  • 完整答案解释:每道题都有详细的解答描述,不仅提到逻辑判断,还会参考相关服务文档,提供了学习的延伸材料。

差异化设计

与其他 AWS 认证的习题集相比,它不仅重视刷题的数量,更关注每次答题后的学习效率。通过这种即时反馈的机制,每位用户都能清楚地了解到自己的知识盲区,从而更有针对性地弥补知识短板。

应用场景与落地建议

该仓库的亮点使得它非常适合以下使用场景:

  • 个人认证准备:个人开发者可以通过其全面的题目覆盖和高效的自我评估机制来进行系统学习。
  • 团队培训:企业内部可以利用这个变体库,为员工提供定期培训和测验,加速团队技术分享和提升。

然而,在使用过程中需注意以下几点:

  • 内容更新性:由于 AWS 服务频繁更新,应关注仓库中是否有最新更新,以确保内容的时效性和准确性。
  • 深入学习:仓库中的答案解析部分,提供了准确答案和延伸阅读链接,开发者应该充分利用这些资源,深入理解问题成因和解决方案。

综合评价

优点

  • 题库丰富:全面覆盖了考试可能出现的关键点。
  • 即时反馈:辅助作答高效直达薄弱点。
  • 详细解答:答案结合文档促进理解。

缺点

  • 必须频繁更新:AWS 的日新月异,要求题库也不断跟进。

总体来看,这是一个设计精良且务实的练习题库,无论是个人还是团队都很适合使用,既有价值又便于维护。

关于

GitHub 原始描述(英文)

⛳️ PASS: Amazon Web Services Certified (AWS Certified) Solutions Architect Associate (SAA-C03) by learning based on our Questions & Answers (Q&A) Practice Tests Exams.

描述取自 GitHub 官方 API,保持仓库作者书写的原文。

Release

README

⬆️ Amazon Web Services Certified (AWS Certified) Solutions Architect Associate (SAA-C03) Practice Tests Exams Questions & Answers

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    • Amazon DynamoDB;
    • Amazon Elastic Block Store (Amazon EBS);
    • Amazon Elastic Compute Cloud (Amazon EC2);
    • Amazon Elastic MapReduce (Amazon EMR);
    • Amazon Redshift;
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    • Much More!
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  7. 772 unique questions.

☝️ Course Updates

v1.0.0: August 11, 2023.

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v1.0.1: November 8, 2023.

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v1.0.2: January 18, 2024.

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v1.0.3: February 21, 2024.

  • Improve 1 question & fix its wrong answer.

v1.1.0: May 8, 2024.

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v2.0.0: June 17, 2024.

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v2.0.0: August 3, 2024.

  • AI-generated explanations (only paid Udemy).

v2.1.0: March 25, 2025.

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Table of Contents

No. Questions
1 Which set of Amazon S3 features helps to prevent and recover from accidental data loss?
2 What is the minimum time interval for the data that Amazon CloudWatch receives and aggregates?
3 A user has launched an EC2 instance. The instance got terminated as soon as it was launched. Which of the below mentioned options is not a possible reason for this?
4 Your website is serving on-demand training videos to your workforce. Videos are uploaded monthly in high resolution MP4 format. Your workforce is distributed globally often on the move and using company-provided tablets that require the HTTP Live Streaming (HLS) protocol to watch a video. Your company has no video transcoding expertise and it required you may need to pay for a consultant. How do you implement the most cost-efficient architecture without compromising high availability and quality of video delivery?
5 You are designing an intrusion detection prevention (IDS/IPS) solution for a customer web application in a single VPC. You are considering the options for implementing IOS IPS protection for traffic coming from the Internet. Which of the following options would you consider? (Choose 2 answers)
6 Which of the following are valid statements about Amazon S3? (Choose 2 answers)
7 How can the domain’s zone apex, for example, ‘myzoneapexdomain.com’, be pointed towards an Elastic Load Balancer?
8 When should I choose Provisioned IOPS over Standard RDS storage?
9 Your department creates regular analytics reports from your company’s log files All log data is collected in Amazon S3 and processed by daily Amazon Elastic MapReduce (EMR) jobs that generate daily PDF reports and aggregated tables in CSV format for an Amazon Redshift data warehouse. Which of the following alternatives will lower costs without compromising average performance of the system or data integrity for the raw data?
10 Because of the extensibility limitations of striped storage attached to Windows Server, Amazon RDS does not currently support increasing storage on a […] DB Instance.
11 In regards to IAM you can edit user properties later, but you cannot use the console to change the […].
12 In Amazon EC2 Container Service, are other container types supported?
13 Content and Media Server is the latest requirement that you need to meet for a client. The client has been very specific about his requirements such as low latency, high availability, durability, and access control. Potentially there will be millions of views on this server and because of ‘spiky’ usage patterns, operations teams will need to provision static hardware, network, and management resources to support the maximum expected need. The Customer base will be initially low but is expected to grow and become more geographically distributed. Which of the following would be a good solution for content distribution?
14 Name the disk storage supported by Amazon Elastic Compute Cloud (EC2)
15 After an Amazon VPC instance is launched, can I change the VPC security groups it belongs to?
16 If I want an instance to have a public IP address, which IP address should I use?
17 Amazon RDS supports SOAP only through […].
18 Which of the following services natively encrypts data at rest within an AWS region? (Choose 2 answers)
19 Which one of the following can’t be used as an origin server with Amazon CloudFront?
20 Select the most correct The device name /dev/sdal (within Amazon EC2) is […].
21 How can I change the security group membership for interfaces owned by other AWS, such as Elastic Load Balancing?
22 You have created a Route 53 latency record set from your domain to a machine in Northern Virginia and a similar record to a machine in Sydney. When a user located in US visits your domain he will be routed to
23 In the context of MySQL, version numbers are organized as MySQL version = X.Y.Z. What does X denote here?
24 Which one of the below doesn’t affect Amazon CloudFront billing?
25 Just when you thought you knew every possible storage option on AWS you hear someone mention Reduced Redundancy Storage (RRS) within Amazon S3. What is the ideal scenario to use Reduced Redundancy Storage (RRS)?
26 Which of the following AWS CLI commands is syntactically incorrect?
27 When running my DB Instance as a Multi-AZ deployment, can I use the standby for read or write operations?
28 In the Launch Db Instance Wizard, where can I select the backup and maintenance options?
29 What is the network performance offered by the c4.8xlarge instance in Amazon EC2?
30 In Amazon EC2, if your EBS volume stays in the detaching state, you can force the detachment by clicking […].
31 What does Amazon DynamoDB provide?
32 Security groups act like a firewall at the instance level, whereas […] are an additional layer of security that act at the subnet level.
33 You have been asked to tighten up the password policies in your organization after a serious security breach, so you need to consider every possible security measure. Which of the following is not an account password policy for IAM Users that can be set?
34 Multi-AZ deployment […] supported for Microsoft SQL Server DB Instances.
35 What does Amazon Elastic Beanstalk provide?
36 You need to quickly set up an email-sending service because a client needs to start using it in the next hour. Amazon Simple Email Service (Amazon SES) seems to be the logical choice but there are several options available to set it up. Which of the following options to set up SES would best meet the needs of the client?
37 A user is observing the EC2 CPU utilization metric on CloudWatch. The user has observed some interesting patterns while filtering over the 1 week period for a particular hour. The user wants to zoom that data point to a more granular period. How can the user do that easily with CloudWatch?
38 A company is running a batch analysis every hour on their main transactional DB, running on an RDS MySQL instance to populate their central Data Warehouse running on Redshift. During the execution of the batch their transactional applications are very slow. When the batch completes they need to update the top management dashboard with the new data. The dashboard is produced by another system running on-premises that is currently started when a manually-sent email notifies that an update is required. The on-premises system cannot be modified because it is managed by another team. How would you optimize this scenario to solve performance issues and automate the process as much as possible?
39 You are configuring a new VPC for one of your clients for a cloud migration project, and only a public VPN will be in place. After you created your VPC, you created a new subnet, a new internet gateway, and attached your internet gateway to your VPC. When you launched your first instance into your VPC, you realized that you aren’t able to connect to the instance, even if it is configured with an elastic IP. What should be done to access the instance?
40 You have been asked to build a database warehouse using Amazon Redshift. You know a little about it, including that it is a SQL data warehouse solution, and uses industry standard ODBC and JDBC connections and PostgreSQL drivers. However, you are not sure about what sort of storage it uses for database tables. What sort of storage does Amazon Redshift use for database tables?
41 A user has attached 1 EBS volume to a VPC instance. The user wants to achieve the best fault tolerance of data possible. Which of the below mentioned options can help achieve fault tolerance?
42 Which features can be used to restrict access to data in S3? (Choose 2 answers)
43 You are in the process of creating a Route 53 DNS failover to direct traffic to two EC2 zones. Obviously, if one fails, you would like Route 53 to direct traffic to the other region. Each region has an ELB with some instances being distributed. What is the best way for you to configure the Route 53 health check?
44 For each DB Instance class, what is the maximum size of associated storage capacity?
45 A user is planning a highly available application deployment with EC2. Which of the below mentioned options will not help to achieve HA?
46 What does specifying the mapping /dev/sdc=none when launching an instance do?
47 Which of the following statements is true of tagging an Amazon EC2 resource?
48 You are deploying an application to collect votes for a very popular television show. Millions of users will submit votes using mobile devices. The votes must be collected into a durable, scalable, and highly available data store for real-time public tabulation. Which service should you use?
49 Are Reserved Instances available for Multi-AZ Deployments?
50 A […] for a VPC is a collection of subnets (typically private) that you may want to designate for your backend RDS DB Instances.
51 An instance is launched into a VPC subnet with the network ACL configured to allow all inbound traffic and deny all outbound traffic. The instance’s security group is configured to allow SSH from any IP address and deny all outbound traffic. What changes need to be made to allow SSH access to the instance?
52 You can modify the backup retention period; valid values are 0 (for no backup retention) to a maximum of […] days.
53 To serve Web traffic for a popular product your chief financial officer and IT director have purchased 10 ml large heavy utilization Reserved Instances (RIs) evenly spread across two Availability Zones. Route 53 is used to deliver the traffic to an Elastic Load Balancer (ELB). After several months, the product grows even more popular and you need additional capacity. As a result, your company purchases two C3.2xlarge medium utilization RIs. You register the two c3 2xlarge instances with your ELB and quickly find that the ml large instances are at 100% of capacity and the c3 2xlarge instances have significant capacity that’s unused. Which option is the most cost effective and uses EC2 capacity most effectively?
54 An existing application stores sensitive information on a non-boot Amazon EBS data volume attached to an Amazon Elastic Compute Cloud instance. Which of the following approaches would protect the sensitive data on an Amazon EBS volume?
55 A user has launched one EC2 instance in the US West region. The user wants to access the RDS instance launched in the US East region from that EC2 instance. How can the user configure the access for that EC2 instance?
56 You have been asked to build AWS infrastructure for disaster recovery for your local applications and within that you should use an AWS Storage Gateway as part of the solution. Which of the following best describes the function of an AWS Storage Gateway?
57 While creating an Amazon RDS DB, your first task is to set up a DB […] that controls which IP address or EC2 instance can access your DB Instance.
58 You need to import several hundred megabytes of data from a local Oracle database to an Amazon RDS DB instance. What does AWS recommend you use to accomplish this?
59 In the context of AWS support, why must an EC2 instance be unreachable for 20 minutes rather than allowing customers to open tickets immediately?
60 HTTP Query-based requests are HTTP requests that use the HTTP verb GET or POST and a Query parameter named […].
61 A friend tells you he is being charged $100 a month to host his WordPress website, and you tell him you can move it to AWS for him and he will only pay a fraction of that, which makes him very happy. He then tells you he is being charged $50 a month for the domain, which is registered with the same people that set it up, and he asks if it’s possible to move that to AWS as well. You tell him you aren’t sure, but will look into it. Which of the following statements is true in regards to transferring domain names to AWS?
62 While creating the snapshots using the command line tools, which command should I be using?
63 All Amazon EC2 instances are assigned two IP addresses at launch, out of which one can only be reached from within the Amazon EC2 network?
64 When an EC2 instance that is backed by an S3-based AMI is terminated, what happens to the data on the root volume?
65 You’ve created your first load balancer and have registered your EC2 instances with the load balancer. Elastic Load Balancing routinely performs health checks on all the registered EC2 instances and automatically distributes all incoming requests to the DNS name of your load balancer across your registered, healthy EC2 instances. By default, the load balancer uses the […] protocol for checking the health of your instances.
66 Amazon Elastic Load Balancing is used to manage traffic on a fleet of Amazon EC2 instances, distributing traffic to instances across all Availability Zones within a region. Elastic Load Balancing has all the advantages of an on-premises load balancer, plus several security benefits. Which of the following is not an advantage of ELB over an on-premise load balancer?
67 A web company is looking to implement an external payment service into their highly available application deployed in a VPC. Their application EC2 instances are behind a public facing ELB. Auto scaling is used to add additional instances as traffic increases. Under normal load the application runs 2 instances in the Auto Scaling group but at peak it can scale 3x in size. The application instances need to communicate with the payment service over the Internet which requires whitelisting of all public IP addresses used to communicate with it. A maximum of 4 whitelisting IP addresses are allowed at a time and can be added through an API. How should they architect their solution?
68 You are using Amazon SES as an email solution but are unsure of what its limitations are. Which statement below is correct in regards to that?
69 Your company is getting ready to do a major public announcement of a social media site on AWS. The website is running on EC2 instances deployed across multiple Availability Zones with a Multi-AZ RDS MySQL Extra Large DB Instance. The site performs a high number of small reads and writes per second and relies on an eventual consistency model. After comprehensive tests you discover that there is read contention on RDS MySQL. Which are the best approaches to meet these requirements? (Choose 2 answers)
70 What does a ‘Domain’ refer to in Amazon SWF?
71 The SQL Server […] feature is an efficient means of copying data from a source database to your DB Instance. It writes the data that you specify to a data file, such as an ASCII file.
72 Any person or application that interacts with AWS requires security credentials. AWS uses these credentials to identify who is making the call and whether to allow the requested access. You have just set up a VPC network for a client and you are now thinking about the best way to secure this network. You set up a security group called vpcsecuritygroup. Which following statement is true in respect to the initial settings that will be applied to this security group if you choose to use the default settings for this group?
73 Which one of the below is not an AWS Storage Service?
74 You are trying to launch an EC2 instance, however the instance seems to go into a terminated status immediately. What would probably not be a reason that this is happening?
75 A company is building software on AWS that requires access to various AWS services. Which configuration should be used to ensure that AWS credentials (i.e., Access Key ID/Secret Access Key combination) are not compromised?
76 Can we attach an EBS volume to more than one EC2 instance at the same time?
77 You need to measure the performance of your EBS volumes as they seem to be under performing. You have come up with a measurement of 1,024 KB I/O but your colleague tells you that EBS volume performance is measured in IOPS. How many IOPS is equal to 1,024 KB I/O?
78 Your company produces customer commissioned one-of-a-kind skiing helmets combining high fashion with custom technical enhancements. Customers can show off their Individuality on the ski slopes and have access to head-up-displays. GPS rear-view cams and any other technical innovation they wish to embed in the helmet. The current manufacturing process is data rich and complex including assessments to ensure that the custom electronics and materials used to assemble the helmets are to the highest standards. Assessments are a mixture of human and automated assessments you need to add a new set of assessment to model the failure modes of the custom electronics using GPUs with CUDA, across a cluster of servers with low latency networking. What architecture would allow you to automate the existing process using a hybrid approach and ensure that the architecture can support the evolution of processes over time?
79 You are designing Internet connectivity for your VPC. The Web servers must be available on the Internet. The application must have a highly available architecture. Which alternatives should you consider? (Choose 2 answers)
80 You need to configure an Amazon S3 bucket to serve static assets for your public-facing web application. Which methods ensure that all objects uploaded to the bucket are set to public read? (Choose 2 answers)
81 A major customer has asked you to set up his AWS infrastructure so that it will be easy to recover in the case of a disaster of some sort. Which of the following is important when thinking about being able to quickly launch resources in AWS to ensure business continuity in case of a disaster?
82 You are developing a new mobile application and are considering storing user preferences in AWS. This would provide a more uniform cross-device experience to users using multiple mobile devices to access the application. The preference data for each user is estimated to be 50KB in size. Additionally, 5 million customers are expected to use the application on a regular basis. The solution needs to be cost-effective, highly available, scalable and secure. How would you design a solution to meet the above requirements?
83 In the Amazon RDS which uses the SQL Server engine, what is the maximum size for a Microsoft SQL Server DB Instance with SQL Server Express edition?
84 You have deployed a web application targeting a global audience across multiple AWS Regions under the domain name.example.com. You decide to use Route 53 Latency-Based Routing to serve web requests to users from the region closest to the user. To provide business continuity in the event of server downtime you configure weighted record sets associated with two web servers in separate Availability Zones per region. During a DR test you notice that when you disable all web servers in one of the regions Route 53 does not automatically direct all users to the other region. What could be happening? (Choose 2 answers)
85 Amazon EBS provides the ability to create backups of any Amazon EC2 volume into what is known as […].
86 You’ve been hired to enhance the overall security posture for a very large e-commerce site. They have a well architected multi-tier application running in a VPC that uses ELBs in front of both the web and the app tier with static assets served directly from S3. They are using a combination of RDS and DynamoDB for their dynamic data and then archiving nightly into S3 for further processing with EMR. They are concerned because they found questionable log entries and suspect someone is attempting to gain unauthorized access. Which approach provides a cost effective scalable mitigation to this kind of attack?
87 You are designing the network infrastructure for an application server in Amazon VPC. Users will access all the application instances from the Internet as well as from an on-premises network. The on-premises network is connected to your VPC over an AWS Direct Connect link. How would you design routing to meet the above requirements?
88 You have multiple VPN connections and want to provide secure communication between sites using the AWS VPN CloudHub. Which statement is the most accurate in describing what you must do to set this up correctly?
89 A user is aware that a huge download is occurring on his instance. He has already set the Auto Scaling policy to increase the instance count when the network I/O increases beyond a certain limit. How can the user ensure that this temporary event does not result in scaling?
90 The Amazon EC2 web service can be accessed using the […] web services messaging protocol. This interface is described by a Web Services Description Language (WSDL) document.
91 Which of the following are true regarding encrypted Amazon Elastic Block Store (EBS) volumes? (Choose 2 answers)
92 Is Federated Storage Engine currently supported by Amazon RDS for MySQL?
93 While creating the snapshots using the API, which Action should I be using?
94 A customer needs to capture all client connection information from their load balancer every five minutes. The company wants to use this data for analyzing traffic patterns and troubleshooting their applications. Which of the following options meets the customer requirements?
95 Will my standby RDS instance be in the same Region as my primary?
96 If I want my instance to run on a single-tenant hardware, which value do I have to set the instance’s tenancy attribute to?
97 Can the string value of ‘Key’ be prefixed with :aws:'?
98 A user wants to increase the durability and availability of the EBS volume. Which of the below mentioned actions should he perform?
99 What does Amazon RDS stand for?
100 You have been asked to set up monitoring of your network and you have decided that Cloudwatch would be the best service to use. Amazon CloudWatch monitors your Amazon Web Services (AWS) resources and the applications you run on AWS in real-time. You can use CloudWatch to collect and track metrics, which are the variables you want to measure for your resources and applications. Which of the following items listed can AWS Cloudwatch monitor?
101 What is the maximum write throughput I can provision for a single Dynamic DB table?
102 Do Amazon EBS volumes persist independently from the running life of an Amazon EC2 instance?
103 What is a Security Group?
104 You need to set up a high level of security for an Amazon Relational Database Service (RDS) you have just built in order to protect the confidential information stored in it. What are all the possible security groups that RDS uses?
105 In the ‘Detailed’ monitoring data available for your Amazon EBS volumes, Provisioned IOPS volumes automatically send […] minute metrics to Amazon CloudWatch.
106 You are looking at ways to improve some existing infrastructure as it seems a lot of engineering resources are being taken up with basic management and monitoring tasks and the costs seem to be excessive. You are thinking of deploying Amazon ElasticCache to help. Which of the following statements is true in regards to ElasticCache?
107 A customer needs corporate IT governance and cost oversight of all AWS resources consumed by its divisions. The divisions want to maintain administrative control of the discrete AWS resources they consume and keep those resources separate from the resources of other divisions. Which of the following options, when used together will support the autonomy/control of divisions while enabling corporate IT to maintain governance and cost oversight? (Choose 2 answers)
108 After creating a new IAM user which of the following must be done before they can successfully make API calls?
109 A friend wants you to set up a small BitTorrent storage area for him on Amazon S3. You tell him it is highly unlikely that AWS would allow such a thing in their infrastructure. However you decide to investigate. Which of the following statements best describes using BitTorrent with Amazon S3?
110 IAM’s Policy Evaluation Logic always starts with a default […] for every request, except for those that use the AWS account’s root security credentials?
111 You have been given a scope to deploy some AWS infrastructure for a large organization. The requirements are that you will have a lot of EC2 instances but may need to add more when the average utilization of your Amazon EC2 fleet is high and conversely remove them when CPU utilization is low. Which AWS services would be best to use to accomplish this?
112 When does the billing of an Amazon EC2 system begin?
113 A user is storing a large number of objects on AWS S3. The user wants to implement the search functionality among the objects. How can the user achieve this?
114 A corporate web application is deployed within an Amazon Virtual Private Cloud (VPC) and is connected to the corporate data center via an IPsec VPN. The application must authenticate against the on-premises LDAP server. After authentication, each logged-in user can only access an Amazon Simple Storage Space (S3) keyspace specific to that user. Which two approaches can satisfy these objectives? (Choose 2 answers)
115 A group can contain many users. Can a user belong to multiple groups?
116 Does Dynamo DB support in-place atomic updates?
117 Can you move a Reserved Instance from one Availability Zone to another?
118 You want to establish a dedicated network connection from your premises to AWS in order to save money by transferring data directly to AWS rather than through your internet service provider. You are sure there must be some other benefits beyond cost savings. Which of the following statements would be the best choice to put your client’s mind at rest?
119 Can I detach the primary (ethO) network interface when the instance is running or stopped?
120 You have launched an Amazon Elastic Compute Cloud (EC2) instance into a public subnet with a primary private I P address assigned, an internet gateway is attached to the VPC, and the public route table is configured to send all Internet-based traffic to the Internet gateway. The instance security group is set to allow all outbound traffic but cannot access the internet. Why is the Internet unreachable from this instance?
121 Which of the following statements best describes the differences between Elastic Beanstalk and CloudFormation?
122 It is advised that you watch the Amazon CloudWatch […] metric (available via the AWS Management Console or Amazon Cloud Watch APIs) carefully and recreate the Read Replica should it fall behind due to replication errors.
123 Your application provides data transformation services. Files containing data to be transformed are first uploaded to Amazon S3 and then transformed by a fleet of spot EC2 instances. Fi les submitted by your premium customers must be transformed with the highest priority. How should you implement such a system?
124 True or False: When you view the block device mapping for your instance, you can see only the EBS volumes, not the instance store volumes.
125 Does AWS CloudFormation support Amazon EC2 tagging?
126 If I modify a DB Instance or the DB parameter group associated with the instance, should I reboot the instance for the changes to take effect?
127 If you are using Amazon RDS Provisioned IOPS storage with MySQL and Oracle database engines, you can scale the throughput of your database Instance by specifying the IOPS rate from […].
128 To specify a resource in a policy statement, in Amazon EC2, can you use its Amazon Resource Name (ARN)?
129 An enterprise wants to use a third-party SaaS application. The SaaS application needs to have access to issue several API commands to discover Amazon EC2 resources running within the enterprise’s account The enterprise has internal security policies that require any outside access to their environment must conform to the principles of least privilege and there must be controls in place to ensure that the credentials used by the 5aa5 vendor cannot be used by any other third party. Which of the following would meet all of these conditions?
130 By default what are ENIs that are automatically created and attached to instances using the EC2 console set to do when the attached instance terminates?
131 [In EC2, what happens to the data in an instance store if an instance reboots (either intentionally or unintentionally)?](#in-ec2-what-happens-to-the-data-in-an-instance-store-if-an-instance-reboots-either-intentionally-or-unintentional

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