Which alternatives should you consider?

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)

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)

A.
Configure a NAT instance in your VPC Create a default route via the NAT instance and associate it with all
subnets Configure a DNS A record that points to the NAT instance public IP address.

B.
Configure a CloudFront distribution and configure the origin to point to the private IP addresses of your
Web servers Configure a Route53 CNAME record to your CloudFront distribution.

C.
Place all your web servers behind EL8 Configure a Route53 CNMIE to point to the ELB DNS name.

D.
Assign BPs to all web servers. Configure a Route53 record set with all EIPs. With health checks and DNS
failover.

E.
Configure ELB with an EIP Place all your Web servers behind ELB Configure a Route53 A record that points to
the EIP.



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harry999

harry999

B and D

harry999

harry999

Sorry C and D

laughsmile

laughsmile

C and E

D. IOPs can’t offers a 100% uptime guarantee.

Balaji

Balaji

B & E

umesh

umesh

Wondering if we can use CNAME to point to cloud distribution…has to be A record alias.

Any thoughts welcome

pavan

pavan

Option A: NAT instance doesn’t make a sense here
Option E: ELB with an EIP (we assign EIP’s to instances)

So A&E are ruled out. Choosing between B,C & D
Option B is wrong as it says “origin to point to the private IP addresses of your
Web servers” (Private IP Address pointing)

So Answer –> C&D

laughsmile

laughsmile

B is wrong. not be private IP addresses.

laughsmile

laughsmile

I agree with umesh
Route53 has to use A record alias to work with ELB.

DE

swagata mondal

swagata mondal

cd

vladam

vladam

C & D are the right answers.

Amit

Amit

C is possible if the domain is not an apex domain and hence C is feasible assuming website will start with subdomain http://WWW.domainname.com
D is feasible

I am not sure if Cloudfront can talk to any AWS resource on private IPs. If yes B could have been a more approprate response

Wajahat

Wajahat

C. Place all your web servers behind ELB Configure a Route53 CNMIE to point to the ELB
DNS name.
D. Assign EIPs to all web servers. Configure a Route53 record set with all EIPs. With
health checks and DNS failover.

mutiger91

mutiger91

I sure hope the actual exam has fewer typos (or scanning errors). I was trying to figure out how we assign British Petroleum to all of the web servers.

DaDA

DaDA

– C.Place all your web servers behind EL8 Configure a Route53 CNAME to point to the ELB DNS name.
– D.Assign EIPs to all web servers. Configure a Route53 record set with all EIPs. With health checks and DNS
failover.