Our pass rate is high to 98.9% and the similarity percentage between our comptia security+ study guide sy0 401 study guide and real exam is 90% based on our seven-year educating experience. Do you want achievements in the CompTIA sy0 401 braindump exam in just one try? I am currently studying for the CompTIA sy0 401 braindump exam. Latest CompTIA security+ sy0 401 Test exam practice questions and answers, Try CompTIA comptia security+ sy0 401 pdf Brain Dumps First.
Q51. Several departments within a company have a business need to send high volumes of confidential information to customers via email. Which of the following is the BEST solution to mitigate unintentional exposure of confidential information?
A. Employ encryption on all outbound emails containing confidential information.
B. Employ exact data matching and prevent inbound emails with Data Loss Prevention.
C. Employ hashing on all outbound emails containing confidential information.
D. Employ exact data matching and encrypt inbound e-mails with Data Loss Prevention.
Answer: A
Explanation:
Encryption is used to ensure the confidentiality of information and in this case the outbound email that contains the confidential information should be encrypted.
Q52. Which of the following security awareness training is BEST suited for data owners who are concerned with protecting the confidentiality of their data?
A. Social networking use training
B. Personally owned device policy training
C. Tailgating awareness policy training
D. Information classification training
Answer: D
Explanation:
Information classification is done by confidentiality and comprises of three categories, namely: public use, internal use and restricted use. Knowing these categories and how to handle data according to its category is essential in protecting the confidentiality of the data.
Q53. At an organization, unauthorized users have been accessing network resources via unused network wall jacks. Which of the following would be used to stop unauthorized access?
A. Configure an access list.
B. Configure spanning tree protocol.
C. Configure port security.
D. Configure loop protection.
Answer: C
Explanation:
Port security in IT can mean several things. It can mean the physical control of all connection points, such as RJ-45 wall jacks or device ports, so that no unauthorized users or unauthorized devices can attempt to connect into an open port. This can be accomplished by locking down the wiring closet and server vaults and then disconnecting the workstation run from the patch panel (or punch-down block) that leads to a room’s wall jack. Any unneeded or unused wall jacks can (and should) be physically disabled in this manner. Another option is to use a smart patch panel that can monitor the MAC address of any device connected to each and every wall port across a building and detect not just when a new device is connected to an empty port, but also when a valid device is disconnected or replaced by an invalid device.
Q54. Which of the following application attacks is used to gain access to SEH?
A. Cookie stealing
B. Buffer overflow
C. Directory traversal
D. XML injection
Answer: B
Explanation:
Buffer overflow protection is used to detect the most common buffer overflows by checking that the stack has not been altered when a function returns. If it has been altered, the program exits with a segmentation fault. Microsoft's implementation of Data Execution Prevention (DEP) mode explicitly protects the pointer to the Structured Exception Handler (SEH) from being overwritten. A buffer overflow occurs when a program or process tries to store more data in a buffer (temporary data storage area) than it was intended to hold. Since buffers are created to contain a finite amount of data, the extra information - which has to go somewhere - can overflow into adjacent buffers, corrupting or overwriting the valid data held in them. Although it may occur accidentally through programming error, buffer overflow is an increasingly common type of security attack on data integrity. In buffer overflow attacks, the extra data may contain codes designed to trigger specific actions, in effect sending new instructions to the attacked computer that could, for example, damage the user's files, change data, or disclose confidential information. Buffer overflow attacks are said to have arisen because the C programming language supplied the framework, and poor programming practices supplied the vulnerability.
Q55. Company A sends a PGP encrypted file to company B. If company A used company B’s public key to encrypt the file, which of the following should be used to decrypt data at company B?
A. Registration
B. Public key
C. CRLs
D. Private key
Answer: D
Explanation:
In a PKI the sender encrypts the data using the receiver's public key. The receiver decrypts the
data using his own private key.
PKI is a two-key, asymmetric system with four main components: certificate authority (CA),
registration authority (RA), RSA (the encryption algorithm), and digital certificates. Messages are
encrypted with a public key and decrypted with a private key.
A PKI example:
1.
You want to send an encrypted message to Jordan, so you request his public key.
2.
Jordan responds by sending you that key.
3.
You use the public key he sends you to encrypt the message.
4.
You send the message to him.
5.
Jordan uses his private key to decrypt the message.
Q56. Pete’s corporation has outsourced help desk services to a large provider. Management has published a procedure that requires all users, when receiving support, to call a special number.
Users then need to enter the code provided to them by the help desk technician prior to allowing the technician to work on their PC. Which of the following does this procedure prevent?
A. Collusion
B. Impersonation
C. Pharming
D. Transitive Access
Answer: B
Explanation:
Impersonation is where a person, computer, software application or service pretends to be someone or something it’s not. Impersonation is commonly non-maliciously used in client/server applications. However, it can also be used as a security threat.
The procedure the users have to go through is to ensure that the technician who will have access to the computer is a genuine technician and not someone impersonating a technician.
Q57. How must user accounts for exiting employees be handled?
A. Disabled, regardless of the circumstances
B. Disabled if the employee has been terminated
C. Deleted, regardless of the circumstances
D. Deleted if the employee has been terminated
Answer: A
Explanation:
You should always disable an employee’s account as soon as they leave. The employee knows the username and password of the account and could continue to log in for potentially malicious purposes. Disabling the account will ensure that no one can log in using that account.
Q58. Which of the following would be used when a higher level of security is desired for encryption key storage?
A. TACACS+
B. L2TP
C. LDAP
D. TPM
Answer: D
Explanation:
Trusted Platform Module (TPM) is a hardware-based encryption solution that is embedded in the system’s motherboard and is enabled or disable in BIOS. It helps with hash key generation and stores cryptographic keys, passwords, or certificates.
Q59. A system administrator is notified by a staff member that their laptop has been lost. The laptop contains the user’s digital certificate. Which of the following will help resolve the issue? (Select TWO).
A. Revoke the digital certificate
B. Mark the key as private and import it
C. Restore the certificate using a CRL
D. Issue a new digital certificate
E. Restore the certificate using a recovery agent
Answer: A,D
Explanation:
The user's certificate must be revoked to ensure that the stolen computer cannot access
resources the user has had access to.
To grant the user access to the resources he must be issued a new certificate.
Q60. Visitors entering a building are required to close the back door before the front door of the same entry room is open. Which of the following is being described?
A. Tailgating
B. Fencing
C. Screening
D. Mantrap
Answer: D
Explanation:
Mantraps are designed to contain an unauthorized, potentially hostile person/individual physically until authorities arrive. Mantraps are typically manufactured with bulletproof glass, high-strength doors, and locks and to allow the minimal amount of individuals depending on its size. Some mantraps even include scales that will weigh the person. The doors are designed in such a way as to open only when the mantrap is occupied or empty and not in-between. This means that the backdoor must first close before the front door will open; exactly what is required in this scenario.