Generic Routing Encapsulation (GRE) is a secure VPN technology for use on unsecured Intranets or the Internet ?
Antworten
True
False
Frage 2
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The ____ _____ ____ is the only type of encryption that has been proven to be absolutely impossible to crack if used correctly.
Antworten
one
time
pad
sole
Frage 3
Frage
Select the most secure of the following encryption standards ?
Antworten
TDES
DES
AES
DDES
Frage 4
Frage
IKE is the protocol used to set up a ______ ________ in the IPsec protocol suite.
Antworten
Association
Secure
safe
available
Frage 5
Frage
The goals of cryptography are ?
Antworten
Non-repudiation
Efficiency
Integrity
Authentication
Confidentiality
None of these.
Frage 6
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Stream ciphers are generally associated with:
Antworten
Once off authentications
High speed
Are slow due to the nature of the stream merging with the pseudo-random bits
Hardware implementations
Frage 7
Frage
In probability theory the ________ _________ is that in some set of randomly chosen people some pair of them will have the same birthday.
Antworten
birthday
paradox
algorithm
Random
Frage 8
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_________ ____ ______________ is used alongside IPsec as a key management protocol incorporating the Oakley key exchange and Skeme key exchange inside the Internet Security Association and Key Management Protocol (ISAKMP) framework.
Antworten
Internet
Key
Exchange
Important
Frage 9
Frage
With Cisco routers a GRE tunnel is not essential and traffic can be carried through untrusted networks using IPsec when tunnel mode is used ?
Antworten
True
False
Frage 10
Frage
Auguste Kerckhoffs principle or law states that: “a cryptosystem should be secure even if everything about the system, except the key, is public knowledge”
Antworten
True
False
Frage 11
Frage
A Virtual Private Network is either
Antworten
A computer network in which some of the links between nodes are carried over devices that are configured with private IP addresses (192.168.x.x).
A computer network built in the home whose IP addresses consist entirely of private addresses (192.168.x.x) and accesses the Internet only by NAT.
A network between routers that is hidden from computers around them.
A computer network in which some of the links between nodes are carried by open connections or virtual circuits in some larger network instead of by physical wires.
Frage 12
Frage
For IPsec Encryption Transport mode order the protocols within the packet.
Antworten
1. Outer IP
3. ESP
4. IP
5. Data
2. AH
Frage 13
Frage
Check the algorithms that are considered hashing functions