When attached to an Amazon VPC which two components provide connectivity with external networks? Choose 2 answers
A. Elastic IPS (EIP)
B. NAT Gateway (NAT)
C. Internet Gateway {IGW)
D. Virtual Private Gateway (VGW)
12 Comments on “which two components provide connectivity with external networks?”
raysmithvic1978says:
C,D
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Mavricksays:
I think it was B & C. If a instance need to communicate with internet , it should be trough NAT Gateway or IGW. VPG for connecting ON-PREM to VPC.
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Justinsays:
It’s C and D. IGW for internet and VGW for external network (corp). A NAT won’t get you out to the internet without IGW.
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hmmsays:
It seems like people are confused with NAT instance and NAT Gateway, which are two different things.
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psan1977says:
Justin is correct,
C.
Internet Gateway {IGW)
D.
Virtual Private Gateway (VGW)
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BDAsays:
C & D
A – Elastic IP’s are applied to Instances, not VPC
B – NAT is used to forward packets between public and private subnets, not provide connectivity to networks outside of VPC,
NAT is applied to instance also, by disabling src/dest checks.
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NikiHeatsays:
CD
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Upendrasays:
C,D
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Davidsays:
A. Elastic IPS (EIP) – Wrong it’s just add a Public IP
B. NAT Gateway (NAT) – Correct!!! “You can use a network address translation (NAT) gateway to enable instances in a private subnet to connect to the Internet or other AWS services, but prevent the Internet from initiating a connection with those instances. ” http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-nat-gateway.html
C. Internet Gateway {IGW) – Correct! – it’s will add a public internet access
D.
Virtual Private Gateway (VGW) – Wrong! it’s just a software layer that connect you with on-premises VPN and the network must be initialize by the customer side.!
“A virtual private gateway is the VPN concentrator on the Amazon side of the VPN connection. ” http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_VPN.html
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LVsays:
I would go for C and B as well.
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Sam Tsays:
NAT Gateway is Not correct. NAT will need to use IGW to connect to outside. It can not do anything by itself. Unlike IGW and VGW – they would directly take you outside.
C,D
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I think it was B & C. If a instance need to communicate with internet , it should be trough NAT Gateway or IGW. VPG for connecting ON-PREM to VPC.
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It’s C and D. IGW for internet and VGW for external network (corp). A NAT won’t get you out to the internet without IGW.
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It seems like people are confused with NAT instance and NAT Gateway, which are two different things.
2
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Justin is correct,
C.
Internet Gateway {IGW)
D.
Virtual Private Gateway (VGW)
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C & D
A – Elastic IP’s are applied to Instances, not VPC
B – NAT is used to forward packets between public and private subnets, not provide connectivity to networks outside of VPC,
NAT is applied to instance also, by disabling src/dest checks.
1
0
CD
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C,D
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A. Elastic IPS (EIP) – Wrong it’s just add a Public IP
B. NAT Gateway (NAT) – Correct!!! “You can use a network address translation (NAT) gateway to enable instances in a private subnet to connect to the Internet or other AWS services, but prevent the Internet from initiating a connection with those instances. ”
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-nat-gateway.html
C. Internet Gateway {IGW) – Correct! – it’s will add a public internet access
D.
Virtual Private Gateway (VGW) – Wrong! it’s just a software layer that connect you with on-premises VPN and the network must be initialize by the customer side.!
“A virtual private gateway is the VPN concentrator on the Amazon side of the VPN connection. ”
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_VPN.html
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I would go for C and B as well.
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NAT Gateway is Not correct. NAT will need to use IGW to connect to outside. It can not do anything by itself. Unlike IGW and VGW – they would directly take you outside.
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C & D
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