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[2021] CompTIA Real SY0-401 Dumps PDF - CompTIA Security+ 2020 Exam

Aaron Whiteman
[2021] CompTIA Real SY0-401 Dumps PDF - CompTIA Security+ 2020 Exam

Topic 2, Compliance and Operational Security – SY0-401


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Exam Questions:


Question #01:


A user was reissued a smart card after the previous smart card had expired. The user is able to log into the domain but is now unable to send digitally signed or encrypted email.

Which of the following would the user need to perform?


  1. Remove all previous smart card certificates from the local certificate store.
  2. Publish the new certificates to the global address list.
  3. Make the certificates available to the operating system.
  4. Recover the previous smart card certificates.


Answer: B




CAs can be either private or public, with VeriSign being one of the best known of the public variety. Many operating system providers allow their systems to be configured as CA

systems. These CA systems can be used to generate internal certificates that are used within a business or in large external settings. The process provides certificates to the

users. Since the user in question has been re-issued a smart card, the user must receive a new certificate by the CA to allow the user to send digitally signed email. This is achieved by publishing the new certificates to the global address list.



Question #02:


Which of the following is an effective way to ensure the BEST temperature for all equipment within a datacenter?


  1. Fire suppression
  2. Raised floor implementation
  3. EMI shielding
  4. Hot or cool aisle containment


Answer: D




There are often multiple rows of servers located in racks in server rooms. The rows of servers are known as aisles, and they can be cooled as hot aisles and cold aisles. With a

hot aisle, hot air outlets are used to cool the equipment, whereas with cold aisles, cold air intake is used to cool the equipment. Combining the two, you have cold air intake from below the aisle and hot air outtake above it, providing constant circulation. This is a more effective way of controlling temperature to safeguard your equipment in a data center.





Which of the following describes the purpose of an MOU?


  1. Define interoperability requirements
  2. Define data backup process
  3. Define onboard/offboard procedure
  4. Define responsibilities of each party


Answer: D




MOU or Memorandum of Understanding is a document outlining which party is responsible for what portion of the work.



Question #04:


Which of the following is an advantage of implementing individual file encryption on a hard drive which already deploys full disk encryption?


  1. Reduces processing overhead required to access the encrypted files
  2. Double encryption causes the individually encrypted files to partially lose their properties
  3. Individually encrypted files will remain encrypted when copied to external media
  4. File level access control only apply to individually encrypted files in a fully encrypted drive


Answer: C




With full disk encryption a file is encrypted as long as it remains on the disk. This is because the data on the disk is decrypted when the user logs on, thus the data is in a

decrypted form when it is copied to another disk. Individually encrypted files on the other hand remain encrypted.


Question #05:


Full disk encryption is MOST effective against which of the following threats?


  1. Denial of service by data destruction
  2. Eavesdropping emanations
  3. Malicious code
  4. Theft of hardware


Answer: D




Full-disk encryption encrypts the data on the device. This feature ensures that the data on the device cannot be accessed in a useable form should the device be stolen. However, it does not prevent the theft of hardware it only protects data should the device be stolen.



Question #06:


Which of the following is a concern when encrypting wireless data with WEP?


  1. WEP displays the plain text entire key when wireless packet captures are reassembled
  2. WEP implements weak initialization vectors for key transmission
  3. WEP uses a very weak encryption algorithm
  4. WEP allows for only four pre-shared keys to be configured


Answer: B




The initialization vector (IV) that WEP uses for encryption is 24-bit, which is quite weak and means that IVs are reused with the same key. By examining the repeating result, it was easy for attackers to crack the WEP secret key. This is known as an IV attack.



Question #07:


Which of the following allows an organization to store a sensitive PKI component with a trusted third party?


  1. Trust model
  2. Public Key Infrastructure
  3. Private key
  4. Key escrow


Answer: D




Sensitive PKI data, such as private keys, can be put into key escrow data. The key escrow data can be kept at a trusted third party. Key escrow is an arrangement in which the keys needed to decrypt encrypted data are held in escrow so that, under certain circumstances, an authorized third party may gain access to those keys. These third parties may include businesses, who may want access to employees' private communications, or governments, who may wish to be able to view the contents of encrypted communications.



Question #08:


A Company has recently identified critical systems that support business operations. Which of the following will once defined, be the requirement for restoration of these systems within a certain period of time?


  1. Mean Time Between Failure
  2. Mean Time to Restore
  3. Recovery Point Objective
  4. Recovery Time Objective


Answer: A



Question #09:


An employee in the accounting department recently received a phishing email that instructed them to click a link in the email to view an important message from the IRS

which threatened penalties if a response was not received by the end of the business day. The employee clicked on the link and the machine was infected with malware. Which of the following principles BEST describes why this social engineering ploy was successful?


  1. Scarcity
  2. Familiarity
  3. Social proof
  4. Urgency


Answer: A



Question #10:


Data confidentiality must be enforces on a secure database. Which of the following controls meets this goal? (Select TWO)


  1. MAC
  2. Lock and key
  3. Encryption
  4. Non-repudiation
  5. Hashing


Answer: C,E


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Aaron Whiteman
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