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| Section | Weight | Objectives |
|---|---|---|
| Identity and Access Management (IAM) | 13% | - Identity Lifecycle Management - Authentication and Authorization |
| Security and Risk Management | 14% | - Compliance and Legal Requirements - Security Governance Principles - Professional Ethics |
| Security Architecture and Engineering | 13% | - Secure Design Principles - Security Models and Frameworks |
| Asset Security | 10% | - Information and Asset Classification - Data Lifecycle Management |
| Security Assessment and Testing | 12% | - Security Testing Methods - Audit Processes |
| Software Development Security | 11% | - Secure Software Development Lifecycle (SDLC) - Application Security Controls |
| Communication and Network Security | 13% | - Network Architecture and Design - Secure Network Components |
| Security Operations | 13% | - Disaster Recovery and Business Continuity - Incident Response |
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NEW QUESTION # 1243
A cryptographic algorithm is also known as:
Answer: B
Explanation:
Acipher is a cryptographic transformation that operates on characters
or bits. In different words, a cipher is defined as a cryptographic
algorithm or mathematical function that operates on characters or
bits and implements encryption or decryption. In contrast, a code
operates with words, phrases and sentences. In a code, a word may
be the encipherment of a sentence or phrase. For example, the word
SCARF may be the code for the term BEWARE OF DUTCH TRAITOR
IN YOUR MIDST.
* a cryptosystem is a set of transformations from a message
space to a ciphertext space. This system includes all cryptovariables
(keys), plaintexts and ciphertexts associated with the
transformation algorithm. The difference between answers a and c is
that answer c, the correct answer, refers to the algorithm alone and
answer a refers to the algorithm and all plaintexts, ciphertexts and
cryptovariables associated with this algorithm.
* cryptanalysis, refers to being able to break the cipher
so that the encrypted message can be read. Cryptanalysis may be
accomplished by exploiting weaknesses in the cipher or, in some
fashion, determining the key. This act of obtaining the plaintext or
key from the ciphertext can be used to recover sensitive or classified
information and, perhaps, to pass on altered or fake messages in
order to deceive the original intended recipient.
* the key or cryptovariable, is used with a particular algorithm
to encipher or decipher the plaintext message. By using the
key, the algorithm can be publicly known and evaluated for its
strength against attack. The key associated with a particular transformation or algorithm can take on many values and the range of all of these possible values is called the keyspace. Ideally, an enciphered
plaintext message using a specific algorithm will produce a unique
ciphertext message for each different key that is used with that algorithm.
The situation in which a plaintext message generates identical
ciphertext messages using the same transformation algorithm, but
with different cryptovariables, is called key clustering. Obviously, this is not a desirable situation, since it effectively reduces the number of keys that have to be tried by an attacker in order to recover the plaintext.
NEW QUESTION # 1244
A company wants to implement two-factor authentication (2FA) to protect their computers from unauthorized users. Which solution provides the MOST secure means of authentication and meets the criteria they have set?
Answer: B
Explanation:
Two-factor authentication (2FA) is a method of authentication that requires two independent factors to verify the identity of a user. The factors are usually classified into three categories:
something you know (such as a password or a PIN), something you have (such as a hardware token or a smart card), and something you are (such as a fingerprint or a retinal scan). A hardware token and a password provide the most secure means of authentication among the given options, as they belong to different categories and are less susceptible to theft, duplication, or compromise. A username and a PIN are both something you know, and thus do not constitute
2FA. A fingerprint and a retinal scanner are both something you are, and thus do not constitute
2FA. A Short Message Service (SMS) and a smartphone authenticator are both something you have, and thus do not constitute 2FA. Moreover, SMS is not a secure channel for transmitting authentication codes, as it can be intercepted or spoofed by attackers.
NEW QUESTION # 1245
Which software development model is actually a meta-model that incorporates a number of the software development models?
Answer: A
Explanation:
The spiral model for software engineering has evolved to encompass the best features of the classic waterfall model, while at the same time adding an element known as risk analysis. The spiral model is more appropriate for large, industrial software projects and has four main blocks/quadrants. Each release or version of the software requires going through new planning, risk analysis, engineering and customer evaluation phases and this is illustrated in the model by the spiral evolution outwards from the center.
For each new release of a software product, a risk analysis audit should be performed to decide whether the new objectives can be completed within budget (time and costs), and decisions have to be made about whether to proceed. The level of planning and customer evaluation is missing from the waterfall model which is mainly concerned with small software programs. The spiral model also illustrated the evolutionary development of software where a solution may be initially proposed which is very basic (first time round the loop) and then later releases add new features and possibly a more elaborate GUI.
NEW QUESTION # 1246
A mobile device application that restricts the storage of user information to just that which is needed to accomplish lawful business goals adheres to what privacy principle?
Answer: D
NEW QUESTION # 1247
What Orange Book security rating is reserved for systems that have been evaluated but fail to meet the criteria and requirements of the higher divisions?
Answer: A
Explanation:
D or "minimal protection" is reserved for systems that were evaluated under the TCSEC but did not meet the requirements for a higher trust level.
A is incorrect. A or "Verified Protectection" is the highest trust level under the TCSEC.
E is incorrect. The trust levels are A - D so "E" is not a valid trust level.
F is incorrect. The trust levels are A - D so "F" is not a valid trust level.
CBK, pp. 329 - 330
AIO3, pp. 302 - 306
NEW QUESTION # 1248
......
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