23-27. TRUE or FALSE (SSL) 23. SSL is not designed to be used with UDP 24. SSL e

Question

23-27. TRUE or FALSE (SSL)

23. SSL is not designed to be used with UDP

24. SSL encrypts TCP header

25. SSL can not be used if IPSec is used

26. SSL handshake phase 3 is optional because some servers do not have signed certificates

27. SSL was originally intended only for HTTP data

28-32. TRUE or FALSE (IPSec)

28. The two IPSec services are AH and ESP

29. SAD is consulted before SPD for sending an IPSec packet

30. IPSec is not intended to be used by computers behind NATs

31. IPSec requires applications to be recompiled to take advantage of IPSec

32. One of the reasons for low uptake of IPSec is that SPD is difficult to configure

Explanation / Answer

23: FALSE

There is an protocol called DTLS which is basically SSL/TLS applied to UDP. So, it can work.

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24: FALSE

The TCP/IP header contains information that helps to route the packets. So, it can't be routed if encrypted. It is not encrypted by SSL.

SSL however does encrypt the HTTP headers.

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25: FALSE

IPSec does the encryption at IP layer and SSL does the encryption at transport layer. Both can be used simultaneously. For example, opening a webpage (that has SSL/TLS) by using a IPSec VPN connection means both are being used at the same time.

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26: TRUE

Client authentication and key exchange is the phase 3 of the SSL handshake protocol. It is optional.

Please ask rest of the questions in a separate post.

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