Priya Dogra – Certification | Jobs | Internships
Question 1: Which encryption algorithm uses a variable length symmetric key?
- RSA
- Blowfish
- DES
- PGP
Question 2: Which of the following is a symmetric key system using blocks?
- RSA
- DES
- PGP
- Diffie-Hellman
Question 3: What is the purpose of a certificate?
- To verify that software is virus free
- To guarantee that a signature is valid
- To validate the sender of a digital signature or software
- To validate the recipient of a software.
Question 4: Secure Multipurpose Internet Mail Extensions (S/MIME) use X.509 certificates to secure e-mail communication
- True
- False
Question 5: Which of the following is an encryption method developed by three mathematicians?
- PGP
- DES
- DSA
- RSA
Question 6: Blowfish is an asymmetric stream cipher
- True
- False
Question 7: Which hashing algorithm do modern Windows systems use?
- SHA1
- SHA2
- LM
- NTLM
Question 8: Which of the following encryption algorithms is a block cipher and uses the Rijndael algorithm?
- DES
- RSA
- AES
- NSA
Question 9: What is a digital signature?
- A piece of encrypted data added to other data to verify the sender
- A scanned version of your signature, often in .jpg format
- A signature that is entered via a digital pad or other device
- A method for verifying the recipient of a document
Question 10: Which of the following uses key sizes equal to 128, 192 and 256 bits?
- DES
- RSA
- 3DES
- AES
