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NEW QUESTION: 1
You need to design a solution for securing access to the historical transaction data.
What should you include in the solution? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION: 2
You work as a Network Administrator for TechMart Inc. The company has a Windows-based network. After completing a security audit of the company's Microsoft Windows Server 2008 R2 file servers, you have determined that folder share security requires a revision on the basis of corporate reorganization. You have noticed that some shares on the file system are not secured. Which of the following is the default permission setting that you have used when a share is created?
A. Everyone with Read permission
B. Everyone with Change permission
C. Administrators with the Change permission
D. Administrators with the Full Control permission
Answer: A
NEW QUESTION: 3
Secure Sockets Layer (SSL) uses a Message Authentication Code (MAC) for what purpose?
A. message non-repudiation.
B. message integrity.
C. message interleave checking.
D. message confidentiality.
Answer: B
Explanation:
A keyed hash also called a MAC (message authentication code) is used for integrity protection and authenticity.
In cryptography, a message authentication code (MAC) is a generated value used to authenticate a message. A MAC can be generated by HMAC or CBC-MAC methods. The MAC protects both a message's integrity (by ensuring that a different MAC will be produced if the message has changed) as well as its authenticity, because only someone who knows the secret key could have modified the message.
MACs differ from digital signatures as MAC values are both generated and verified using the same secret key. This implies that the sender and receiver of a message must agree on the same key before initiating communications, as is the case with symmetric encryption. For the same reason, MACs do not provide the property of non-repudiation offered by signatures specifically in the case of a network-wide shared secret key: any user who can verify a MAC is also capable of generating MACs for other messages.
HMAC When using HMAC the symmetric key of the sender would be concatenated (added at the end) with the message. The result of this process (message + secret key) would be put through a hashing algorithm, and the result would be a MAC value. This MAC value is then appended to the message being sent. If an enemy were to intercept this message and modify it, he would not have the necessary symmetric key to create a valid MAC value. The receiver would detect the tampering because the MAC value would not be valid on the receiving side.
CBC-MAC If a CBC-MAC is being used, the message is encrypted with a symmetric block cipher in CBC mode, and the output of the final block of ciphertext is used as the MAC. The sender does not send the encrypted version of the message, but instead sends the plaintext version and the MAC attached to the message. The receiver receives the plaintext message and encrypts it with the same symmetric block cipher in CBC mode and calculates an independent MAC value. The receiver compares the new MAC value with the MAC value sent with the message. This method does not use a hashing algorithm as does HMAC.
Cipher-Based Message Authentication Code (CMAC) Some security issues with CBC-MAC were found and they created Cipher-Based Message Authentication Code (CMAC) as a replacement. CMAC provides the same type of data origin authentication and integrity as CBC-MAC, but is more secure mathematically. CMAC is a variation of CBC-MAC. It is approved to work with AES and Triple DES. HMAC, CBC-
MAC, and CMAC work higher in the network stack and can identify not only transmission
errors (accidental), but also more nefarious modifications, as in an attacker messing with a
message for her own benefit. This means all of these technologies can identify intentional,
unauthorized modifications and accidental changes- three in one.
The following are all incorrect answers:
"Message non-repudiation" is incorrect.
Nonrepudiation is the assurance that someone cannot deny something. Typically,
nonrepudiation refers to the ability to ensure that a party to a contract or a communication
cannot deny the authenticity of their signature on a document or the sending of a message
that they originated.
To repudiate means to deny. For many years, authorities have sought to make repudiation
impossible in some situations. You might send registered mail, for example, so the
recipient cannot deny that a letter was delivered. Similarly, a legal document typically
requires witnesses to signing so that the person who signs cannot deny having done so.
On the Internet, a digital signature is used not only to ensure that a message or document
has been electronically signed by the person that purported to sign the document, but also,
since a digital signature can only be created by one person, to ensure that a person cannot
later deny that they furnished the signature.
"Message confidentiality" is incorrect. The Message confidentiality is protected by
encryption not by hashing algorithms.
"Message interleave checking" is incorrect. This is a nonsense term included as a
distractor.
Reference(s) used for this question:
Harris, Shon (2012-10-25). CISSP All-in-One Exam Guide, 6th Edition (p. 1384). McGraw-
Hill. Kindle Edition.
and
http://csrc.nist.gov/publications/nistpubs/800-38B/SP_800-38B.pdf
and
http://searchsecurity.techtarget.com/definition/nonrepudiation
and
https://en.wikipedia.org/wiki/Message_authentication_code
NEW QUESTION: 4
HOTSPOT
Ihr Netzwerk enthält zwei Hyper-V-Hosts, die wie in der folgenden Tabelle gezeigt konfiguriert sind.
Sie erstellen eine virtuelle Maschine auf Server1 mit dem Namen VM1.
Sie planen, VM1 von Server1 zu exportieren und VM1 nach Server2 zu importieren.
Sie müssen sicherstellen, dass Sie die importierte Kopie von VM1 aus Snapshots starten können.
Was sollten Sie auf VM1 konfigurieren?
Wählen Sie zum Beantworten den entsprechenden Knoten im Antwortbereich aus.
Answer:
Explanation:
Hinweis:
* Wenn die CPUs vom selben Hersteller, aber nicht vom selben Typ sind, müssen Sie möglicherweise den Prozessor verwenden
Kompatibilität.
(Falsch) Der Netzwerkadapter ist bereits nicht verbunden.