X.509 defines alternative authentication protocols based on the use of _______ key certificates

• Public

• Private

• Hybrid

• Master

In S/MIME certificate processing A User's public key must be registered with a certificate authority in order to receive an _______ key

• X.509 Private

• X.507 Public

• X.509 Public

• X.507 Private

A full service kerberos environment consisting of a _________

• Servers

• Clients

• Application Servers

• All the mentioned

The simplest ________ attack is one in which the opponent simply copies a message and reply later

• React

• Counter

• Reply

• None Mentioned

____________ is the method for keeping sensitive information in email communication & accounts secure against unofficial access, loss or compromise

• Email hacking

• Email Protection

• Email Safeguarding

• Email Security

Using email hacking illicit hackers can send & spread _____ virus _____ and spam emails

• Cracked software, redirected malicious URLs

• Malware, Security Patches

• Antivirus, Patches C

• Trojans, Redirected Malicious URLs

If the data stored in the __ is not encrypted, then after cookie stealing, attackers can see information such as username and password stored by the cookie

• Hard drive

• Quarantine

• Cookies

• Memory

Who created PGP?

• Phi Zimmermann

• Tim Berners-Lee

• Marc Andreesen

• Ken Thompson

The cryptography algorithms used in S/MIME are_______

• SHA

• RSA, DES-3

• RC4

• RC5

Firewall examines each __________ that are entering or leaving the internal network

• Hackers

• Data Packets

• Links

• E Mail Users