aspose file tools*
The moose likes Mock Exam Errata and the fly likes possible error in epractice labs OCMJEA6 mock exam Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Certification » Mock Exam Errata
Bookmark "possible error in epractice labs OCMJEA6 mock exam" Watch "possible error in epractice labs OCMJEA6 mock exam" New topic
Author

possible error in epractice labs OCMJEA6 mock exam

Titi Wangsa Damhore
Greenhorn

Joined: Apr 23, 2014
Posts: 3
I hit this question.

Choose any 2
80. Which of the following statements are NOT true with respect to Public and Private keys?
Choice A: Private key can be used for encryption
Choice B: Private key will be shared to decrypt the data
Choice C: Public key will be shared to decrypt the data
Choice D: Private keys are shared

my source:
https://en.wikipedia.org/wiki/Public-key_cryptography
http://searchsecurity.techtarget.com/definition/PKI

Choice A: Private key can be used for encryption [incorrect]
Each user has a pair of cryptographic keys – a public encryption key and a private decryption key
Public-key encryption, in which a message is encrypted with a recipient's public key.
public key for encryption and private key for decryption

Choice B: Private key will be shared to decrypt the data [incorrect]
"The public key is widely distributed, while the private key is known only to its proprietor."
private key will decrypt. true.
private key will be shared. false.
so it is false.


Choice C: Public key will be shared to decrypt the data [incorrect]
public key will be shared. true.
public key to decrypt the data. false.

Choice D: Private keys are shared [incorrect]
"The public key is widely distributed, while the private key is known only to its proprietor."
private keys are not shared.
public keys are shared.


the answer for the mock exam is:

Choice B: Private key will be shared to decrypt the data
Choice D: Private keys are shared

Choice A is NOT true
Choice C is NOT true

the answer should be A,B,C,D

Am I incorrect or is the mock exam incorrect?
Sai Babu
Greenhorn

Joined: Apr 04, 2008
Posts: 23
Hi Titi,

I took tried this question in ePractice labs, it seems the answer options are some how mis-spelled or they could be wrong,
hopefully someone from ePractice labs correct these errors.

for the explanation you gave and based on my research, Public keys are used for encryption and private keys are used for decryption.


Thanks


Sai Babu
SCJP, SCWCD
Ray Ye
Ranch Hand

Joined: Jun 02, 2004
Posts: 59
Hi Titi,

You are correct. All the answers given are wrong. I already posted this to their support team and it may be get corrected in their next release.

Cheers,
 
Don't get me started about those stupid light bulbs.
 
subject: possible error in epractice labs OCMJEA6 mock exam