REVIEW - CHAPTER 9 AWS EXAM QUESTIONS

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REVIEW - CHAPTER 9 AWS EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -20 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: 6. Which DNS record should you use to configure the transmission of email to your intended mail server?

• SPF records
• A records
• MX records
• SOA record

Answer:

6.

• You would use Mail eXchange (MX) records to define which inbound destination mail server should

be used.

Question 2: 2. Where do you register a domain name?

• With your local government authority
• With a domain registrar
• With InterNIC directly
• With the Internet Assigned Numbers Authority (IANA)

Answer:

2.

• Domain names are registered with a domain registrar, which then registers the name to InterNIC.

Question 3: 11. Which type of DNS record should you use to resolve a domain name to another domain name?

• An A record
• A CNAME record
• An SPF record
• A PTR record

Answer:

11.

• The CNAME record maps a name to another name. It should be used only when there are no other

records on that name.Question 4: 18. What are the different hosted zones that can be created in Amazon Route 53?

• Public hosted zone
• Global hosted zone
• Private hosted zone
• 1 and 2
• 1 and 3
• 2 and 3
• 1, 2, and 3

Answer:

18.

• Using Amazon Route 53, you can create two types of hosted zones: public hosted zones and private

hosted zones.

Question 5: 17. Which protocol is used by DNS when response data size exceeds 512 bytes?

• Transmission Control Protocol (TCP)
• Hyper Text Transfer Protocol (HTTP)
• File Transfer Protocol (FTP)
• User Datagram Protocol (UDP)

Answer:

17.

• The TCP protocol is used by DNS server when the response data size exceeds 512 bytes or for

tasks such as zone transfers.

Question 6: 9. Which DNS record must all zones have by default?

A. SPF

B. TXT

• MX

D. SOA

Answer:

9.

• The start of a zone is defined by the SOA; therefore, all zones must have an SOA record by default.

Question 7: 5. You host a web application across multiple AWS regions in the world, and you need to configure your DNS so that your end users will get the fastest network performance possible. Which routing policy should you apply?

• Geolocation routing
• Latency-based routing
• Simple routing
• Weighted routing

Answer:

5.

• You want your users to have the fastest network access possible. To do this, you would use

latency-based routing. Geolocation routing would not achieve this as well as latencybased routing,

which is specifically geared toward measuring the latency and thus would direct you to the AWS region in which you would have the lowest latency.Question 8: 14. Which resource record set would not be allowed for the hosted zone example.com?

• www.example.com
• www.aws.example.com
• www.example.ca
• www.beta.example.com

Answer:

14.

• The resource record sets contained in a hosted zone must share the same suffix.

Question 9: 19. Amazon Route 53 cannot route queries to which AWS resource?

• Amazon CloudFront distribution
• Elastic Load Balancing load balancer
• Amazon EC2
• AWS OpsWorks

Answer:

19.

• Amazon Route 53 can route queries to a variety of AWS resources such as an Amazon CloudFront

distribution, an Elastic Load Balancing load balancer, an Amazon EC2 instance, a website hosted in an Amazon S3 bucket, and an Amazon Relational Database (Amazon RDS).

Question 10: 16. Which protocol is primarily used by DNS to serve requests?

• Transmission Control Protocol (TCP)
• Hyper Text Transfer Protocol (HTTP)
• File Transfer Protocol (FTP)
• User Datagram Protocol (UDP)

Answer: