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with the appropriate tool name.
is a wireless network cracking tool that exploits the vulnerabilities in the RC4 Algorithm, which comprises the WEP security
parameters.
security parameters. It mainly consists of three tools, which are as follows:
WeakIVGen: It allows a user to emulate the encryption output of 802.11 networks to weaken the secret key used to encrypt the
network traffic.
Prism-getIV: It analyzes packets of information until ultimately matching patterns to the one known to decrypt the secret key.
WEPcrack: It pulls the all beneficial data of WeakIVGen and Prism-getIV to decipher the network encryption.
The SALES folder has a file named XFILE.DOC that contains critical information about your company. This folder resides on an NTFS volume.
The company's Senior Sales Manager asks you to provide security for that file. You make a backup of that file and keep it in a locked cupboard,
and then you deny access on the file for the Sales group. John, a member of the Sales group, accidentally deletes that file. You have verified
that John is not a member of any other group. Although you restore the file from backup, you are confused how John was able to delete the
file despite having no access to that file.
What is the most likely cause?
Although NTFS provides access controls to individual files and folders, users can perform certain actions even if permissions are set on a file or
folder to prevent access. If a user has been denied access to any file and he has Full Control rights in the folder on which it resides, he will be
able to delete the file, as Full Control rights in the folder allow the user to delete the contents of the folder.
Answer C is incorrect. In the event of any permission conflict, the most restrictive one prevails. Moreover, the question clearly states
that John is not a member of any other group.
Answer D and B are incorrect. The Deny Access permission works on files.
What are the purposes of audit records on an information system?
Each correct answer represents a complete solution. Choose two.
The following are the purposes of audit records on an information system:
Troubleshooting
Investigation
An IT audit is the process of collecting and evaluating records of an organization's information systems, practices, and operations. The
evaluation of records provides evidence to determine if the information systems are safeguarding assets, maintaining data integrity, and
operating effectively and efficiently enough to achieve the organization's goals or objectives. These reviews may be performed in conjunction
with a financial statement audit, internal audit, or other form of attestation engagement. Audit records are also used to troubleshoot system
issues.
Answer B and A are incorrect. The audit records cannot be used for backup and upgradation purposes.
In an IT organization, some specific tasks require additional detailed controls to ensure that the workers perform their job correctly. What do these detailed controls specify?
Each correct answer represents a complete solution. Choose three.
Some of the specific tasks require additional detailed controls to ensure that the workers perform their job correctly. These controls refer to
some specific tasks or steps to be performed such as:
The way system security parameters are set.
How input data is verified before being accepted into an application.
How to lock a user account after unsuccessful logon attempts.
How the department handles acquisitions, security, delivery, implementation, and support of IS services.
Answer C is incorrect. Input data should be verified before being accepted into an application.
You work as a Network Administrator for Net Perfect Inc. The company has a Windows-based network. You are concerned about the
vulnerabilities existing in the network of the company. Which of the following can be a cause for making the network vulnerable?
Each correct answer represents a complete solution. Choose two.
In computer security, the term vulnerability is a weakness which allows an attacker to reduce a system's Information Assurance. A computer
or a network can be vulnerable due to the following reasons:
Complexity: Large, complex systems increase the probability of flaws and unintended access points.
Familiarity: Using common, well-known code, software, operating systems, and/or hardware increases the probability an attacker has
or can find the knowledge and tools to exploit the flaw.
Connectivity: More physical connections, privileges, ports, protocols, and services and time each of those are accessible increase
vulnerability.
Password management flaws: The computer user uses weak passwords that could be discovered by brute force. The computer user
stores the password on the computer where a program can access it. Users re-use passwords between many programs and websites.
Fundamental operating system design flaws: The operating system designer chooses to enforce sub optimal policies on user/program
management. For example, operating systems with policies such as default permit grant every program and every user full access to
the entire computer. This operating system flaw allows viruses and malware to execute commands on behalf of the administrator.
Internet Website Browsing: Some Internet websites may contain harmful Spyware or Adware that can be installed automatically on
the computer systems. After visiting those websites, the computer systems become infected and personal information will be collected
and passed on to third party individuals.
Software bugs: The programmer leaves an exploitable bug in a software program. The software bug may allow an attacker to misuse
an application.
Unchecked user input: The program assumes that all user input is safe. Programs that do not check user input can allow unintended
direct execution of commands or SQL statements (known as Buffer overflows, SQL injection or other non-validated inputs).
Answer C and B are incorrect. Use of common software and common code can make a network vulnerable.
