Introduction to Network Security MCQs

 1) ___________ is a combination of cryptography & cryptanalysis.

A) Cryptology     B) readable message C) cipher text     D) plain text

Correct ans: Cryptology

2) ___________ have strong security checks as to what they can do, and what they cannot.

A) signed applets B) java applets C) ActiveX D) client pull

Correct ans: java applets

3) __________ verifier ensures that java class files obey the rules of the java programming language.

A)bitcode B) source code C) bytecode D) java compiler

Correct ans: bytecode

4) Key database is a set of keys used by security manager and access controller to validate ___________.

A) java classes B) loading classes C) authentication D) digital signature

Correct ans: digital signature

5) __________ is a passive attack on an ongoing conversation.

A) packet sniffing B) IP Spoofing C) packet spoofing D) IP sniffing

Correct ans: packet sniffing

6) ___________ technique, rather than replacing one plain text alphabet with one cipher text alphabet at a time.

A) Polygram substitution cipher B) Polyalphabetic substitution cipher

C) Rail Fence technique D) Basic Technique

Correct ans: Polygram substitution cipher

7) __________ works on block mode.

A) CFB B) OFB C) CBC D) CCB

Correct ans:CFB 

8) The __________ is an open encryption and security specification that is designed for protecting credit card transactions on the internet.

A) TSA B) SET C) LDAP D) ECC

Correct ans: SET

9) ___________ is the first step in any cryptographic solution.

A) Authentication B) id C) password D) login

Correct ans: Authentication

10) ___________ allows users and applications to access X.500 directories, depending on their privileges.

A) LDAP B) ECC C) CBC D) TSA

Correct ans: LDAP