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Free SSCP Exam Braindumps (page: 4)

Page 4 of 269
PDF with 1074 Questions

Which one of the following authentication mechanisms creates a problem for mobile users?

  1. Mechanisms based on IP addresses
  2. Mechanism with reusable passwords
  3. one-time password mechanism.
  4. challenge response mechanism.

Answer(s): A

Explanation:

Anything based on a fixed IP address would be a problem for mobile users because their location and its associated IP address can change from one time to the next. Many providers will assign a new IP every time the device would be restarted. For example an insurance adjuster using a laptop to file claims online. He goes to a different client each time and the address changes every time he connects to the ISP.
NOTE FROM CLEMENT:
The term MOBILE in this case is synonymous with Road Warriors where a user is contantly traveling and changing location. With smartphone today that may not be an issue but it would be an issue for laptops or WIFI tablets. Within a carrier network the IP will tend to be the same and would change rarely. So this question is more applicable to devices that are not cellular devices but in some cases this issue could affect cellular devices as well.
The following answers are incorrect:
mechanism with reusable password. This is incorrect because reusable password mechanism would not present a problem for mobile users. They are the least secure and change only at specific interval.
one-time password mechanism. This is incorrect because a one-time password mechanism would not present a problem for mobile users. Many are based on a clock and not on the IP address of the user.
challenge response mechanism. This is incorrect because challenge response mechanism would not present a problem for mobile users.



Organizations should consider which of the following first before allowing external access to their LANs via the Internet?

  1. plan for implementing workstation locking mechanisms.
  2. plan for protecting the modem pool.
  3. plan for providing the user with his account usage information.
  4. plan for considering proper authentication options.

Answer(s): D

Explanation:

Before a LAN is connected to the Internet, you need to determine what the access controls mechanisms are to be used, this would include how you are going to authenticate individuals that may access your network externally through access control.
The following answers are incorrect:
plan for implementing workstation locking mechanisms. This is incorrect because locking the workstations have no impact on the LAN or Internet access.
plan for protecting the modem pool. This is incorrect because protecting the modem pool has no impact on the LAN or Internet access, it just protects the modem.
plan for providing the user with his account usage information. This is incorrect because the question asks what should be done first. While important your primary concern should be focused on security.



Which of the following would assist the most in Host Based intrusion detection?

  1. audit trails.
  2. access control lists.
  3. security clearances.
  4. host-based authentication.

Answer(s): A

Explanation:

To assist in Intrusion Detection you would review audit logs for access violations.
The following answers are incorrect:
access control lists. This is incorrect because access control lists determine who has access to what but do not detect intrusions.
security clearances. This is incorrect because security clearances determine who has access to what but do not detect intrusions.
host-based authentication. This is incorrect because host-based authentication determine who have been authenticated to the system but do not dectect intrusions.



Controls to keep password sniffing attacks from compromising computer systems include which of the following?

  1. static and recurring passwords.
  2. encryption and recurring passwords.
  3. one-time passwords and encryption.
  4. static and one-time passwords.

Answer(s): C

Explanation:

To minimize the chance of passwords being captured one-time passwords would prevent a password sniffing attack because once used it is no longer valid. Encryption will also minimize these types of attacks.
The following answers are correct:
static and recurring passwords. This is incorrect because if there is no encryption then someone password sniffing would be able to capture the password much easier if it never changed.
encryption and recurring passwords. This is incorrect because while encryption helps, recurring passwords do nothing to minimize the risk of passwords being captured.
static and one-time passwords. This is incorrect because while one-time passwords will prevent these types of attacks, static passwords do nothing to minimize the risk of passwords being captured.



Page 4 of 269



Post your Comments and Discuss ISC SSCP exam with other Community members:

Jack commented on October 03, 2024
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Anonymous
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Anil commented on February 13, 2024
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Anonymous
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POLAND
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BanglaBoi commented on January 11, 2015
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UNITED KINGDOM
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