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Self-Assessment Quiz
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1

Justin wants his team to be able to send him encrypted e-mails. What should he do?
A)Send each team member his private key.
B)Send each team member his public key.
C)Ask each team member for his or her private key.
D)Ask each team member for his or her public key.
2

2. Which of the following are popular cryptographic hashing functions?
A)MD5
B)SHA-2
C)RADIUS
D)TACACS+
E)Answers A and B
3

A public and private key pair is an example of what?
A)Symmetric-key algorithm
B)Asymmetric-key algorithm
C)Certificate
D)RADIUS
4

Which authentication protocol is time sensitive and is the default authentication protocol on Windows domains?
A)PPP
B)MS-CHAP
C)IPsec
D)Kerberos
5

What helps to protect credit card numbers during online purchases?
A)Certificates
B)TLS
C)SCP
D)NTP
E)Answers A and B
6

Emily wants to remotely and securely enter commands to be run at a remote server. What application should she use?
A)Telnet
B)SSH
C)SFTP
D)RSA
7

A hash function is by definition
A)A complex function
B)A PKI function
C)A one-way function
D)A systematic function
8

In order to have a PKI infrastructure you must have a(n)
A)Web server
B)Web of trust
C)Root authority
D)Unsigned certificate
9

Which term describes the process of guaranteeing that data that is received is, in fact, the data that was sent—and that it came from the presumed source?
A)Authentication
B)Authorization
C)Encryption
D)Nonrepudiation
10

If you saw some traffic running on TCP port 49, what AAA standard would you know was running?
A)PPP
B)RADIUS
C)MS-CHAP
D)TACACS+
11

What is the difference between RADIUS and TACACS+?
A)RADIUS is the authentication control for Windows networks whereas TACACS+ is the authentication control for UNIX/Linux networks.
B)RADIUS is an implementation of an authentication control whereas TACACS+ is an implementation of authorization control.
C)RADIUS is a generic name for authentication control, and there are implementations for Windows, UNIX, and Linux servers. TACACS+ is authentication control for Cisco routers and switches.
D)RADIUS supports encryption; TACACS+ does not and is, therefore, less desirable in a network.
12

AES is a(n) __________ cipher.
A)Block
B)Forwarding
C)Stream
D)Asymmetric
13

Which authentication protocol is broadly used on wireless networks?
A)802.1X
B)PPP
C)PAP
D)MS-CHAP
14

Digital signatures and certificates help which aspect of computer security?
A)Accounting
B)Authentication
C)Authorization
D)Nonrepudiation
15

Which authorization model grants privileges based on the group membership of network users?
A)MAC
B)DAC
C)RBAC
D)GAC





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