Security Test 3
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Security+ Test 3
- 1.Until the development of the World Wide Web and _____ the Internet was primarily used for transferring files from one device to another.
- A.
FTP
- B.
HTTP
- C.
HTML
- D.
NNTP
- 2.The main reason that tunneling is used today is to _____.
- A.
Allow networks based on different protocols to communicate
- B.
Provide high speed connections
- C.
Provide security
- D.
Reduce the number of protocols needed to communicate
- 3.George works for an ISP and needs to configure an NAS to support PPTP. What port does he need to open tunneling to function properly?
- A.
423
- B.
1024
- C.
1701
- D.
1723
- 4.Secure Sockets Layer (SSL)/Transport Layer Security (TLS) operate at the _____ layer.
- A.
Transport
- B.
Session
- C.
Application
- D.
Network
- 5.IPSec _____ mode encrypts only the data portion (payload) of each packet, yet leaves the header unencrypted.
- A.
Tunnel
- B.
Secure
- C.
Transport
- D.
Standard
- 6._____ makes it possible for almost any application running on virtually any computer platform to obtain directory information, such as e-mail addresses and keys.
- A.
X.500
- B.
DAP
- C.
DCE
- D.
LDAP
- 7.The _____ standard defines a LAN that provides cable-free data access at a rate up to 2 Mbps for clients that are either mobile or in a fixed
- A.
802.6
- B.
802.11
- C.
802.11b
- D.
802.15
- 8.A security vulnerability of SSID _____ is that it also provides the SSID to unauthorized users who pick up the signal.
- A.
Broadcasting
- B.
Relaying
- C.
Beaconing
- D.
Flooding
- 9._____ is an optional configuration for WLANs that encrypts packets during transmission to prevent attackers from viewing their contents.
- A.
WEP
- B.
WTLS
- C.
WOL
- D.
WSecure
- 10._____ is the science of transforming information so that it is secure while it is being transmitted or stored.
- A.
Steganography
- B.
Cryptography
- C.
Encryption
- D.
Ciphering
- 11.The process of encrypting and decrypting information is based on a mathematical procedure called a(n) _____.
- A.
Cipher
- B.
Key
- C.
Algorithm
- D.
Hash
- 12.When only trusted users are provided with a cipher and a key to decrypt ciphertext _____ is achieved.
- A.
Confidentiality
- B.
Authentication
- C.
Integrity
- D.
Access control
- 13._____ restricts availability to information.
- A.
Confidentiality
- B.
Integrity
- C.
Nonrepudiation
- D.
Access control
- 14.Symmetric encryption is also called _____ key cryptography.
- A.
Private
- B.
Public
- C.
Unique
- D.
Session
- 15.DES encrypts 64-bit plaintext by executing the algorithm _____ times.
- A.
4
- B.
8
- C.
12
- D.
16
- 16.How many key sizes does RC6 have?
- A.
1
- B.
2
- C.
3
- D.
4
- 17.A _____ key is used in public key cryptography.
- A.
Public
- B.
Private
- C.
Secret
- D.
Both a and b
- 18.The maximum length of a key in most versions of asymmetric algorithms is 16,638 bits, or _____ characters.
- A.
1280
- B.
1536
- C.
2080
- D.
3624
- 19.The _____ asymmetric algorithm is slower than all other algorithms.
- A.
RSA
- B.
Diffie-Hellman
- C.
Elliptic curve cryptography
- D.
DES
- 20.A _____ is an encrypted hash of a message that is transmitted along with the message.
- A.
Message digest
- B.
Digital signature
- C.
Cipher
- D.
Hash algorithm
- 21.EFS uses asymmetric cryptography and a per-_____ encryption key to encrypt and decrypt data.
- A.
User
- B.
Folder
- C.
Volume
- D.
File
- 22.What is the name of the Windows 2003 Server command liine utility that can be used to encrypt and decrypt files?
- A.
EFS.exe
- B.
Cipher.exe
- C.
Crypto.exe
- D.
Secure.exe
- 23.If Bob is using symmetric key encryption and wants to securely communicate with 20 other users, how many secret keys must he keep and manage?
- A.
1
- B.
5
- C.
10
- D.
20
- 24.When using digital signatures, what key does the receiver use to decrypt the digital signature?
- A.
The sender’s private key
- B.
The sender’s public key
- C.
The receiver’s private key
- D.
The receiver’s public key
- 25.Garret wants to check the certificate status for users on his network. Where should he access this information?
- A.
Certificate Directory
- B.
Restricted Certificate List
- C.
Certificate Repository
- D.
Certificate Revocation List
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