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350-901 · Question #48

Refer to the exhibit. Which two functions are performed by the load balancer when it handles traffic originating from the Internet destined to an application hosted on the file server farm? (Choose…

The correct answer is C. Terminate the TLS over the TCP connection from the router and originate an HTTP connection to the selected server. D. Terminate the TLS over the TCP connection from the router and originate an HTTPS connection to the selected server. When a load balancer handles incoming Internet traffic destined for an application, it typically performs TLS termination on the incoming TCP connection.

Application Deployment and Security

Question

Refer to the exhibit. Which two functions are performed by the load balancer when it handles traffic originating from the Internet destined to an application hosted on the file server farm? (Choose two.)

Exhibit

350-901 question #48 exhibit

Options

  • ATerminate the TLS over the UDP connection from the router and originate an HTTPS connection to the selected server.
  • BTerminate the TLS over the UDP connection from the router and originate an HTTP connection to the selected server.
  • CTerminate the TLS over the TCP connection from the router and originate an HTTP connection to the selected server.
  • DTerminate the TLS over the TCP connection from the router and originate an HTTPS connection to the selected server.
  • ETerminate the TLS over the SCTP connection from the router and originate an HTTPS connection to the selected server.

How the community answered

(53 responses)
  • A
    4% (2)
  • B
    9% (5)
  • C
    81% (43)
  • E
    6% (3)

Why each option

When a load balancer handles incoming Internet traffic destined for an application, it typically performs TLS termination on the incoming TCP connection.

ATerminate the TLS over the UDP connection from the router and originate an HTTPS connection to the selected server.

HTTPS uses TCP for transport, not UDP.

BTerminate the TLS over the UDP connection from the router and originate an HTTP connection to the selected server.

HTTPS uses TCP for transport, not UDP.

CTerminate the TLS over the TCP connection from the router and originate an HTTP connection to the selected server.Correct

The load balancer commonly performs TLS termination, decrypting the incoming HTTPS traffic (TLS over TCP) from the client/router. It then originates an unencrypted HTTP connection to the backend server, offloading the cryptographic processing from the application servers.

DTerminate the TLS over the TCP connection from the router and originate an HTTPS connection to the selected server.Correct

The load balancer can also perform TLS termination on the incoming HTTPS traffic (TLS over TCP) and then re-encrypt the traffic, originating a new HTTPS connection to the selected backend server for end-to-end encryption.

ETerminate the TLS over the SCTP connection from the router and originate an HTTPS connection to the selected server.

SCTP is not the standard transport protocol for general Internet web traffic like HTTPS; TCP is used.

Concept tested: Load balancer functions - TLS termination and backend connection

Source: https://www.cloudflare.com/learning/performance/what-is-ssl-termination/

Topics

#Load Balancers#TLS/SSL Offloading#HTTPS#Application Delivery

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