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What should a network administrator perform to execute/test the untrusted or untested programs or code from untrusted or unverified third-parties without risking the host system or OS?
Application sandboxing is a security technique that allows untrusted or untested programs or code to be executed in a separate, restricted environment known as a sandbox. This environment is isolated from the host system and operating system, ensuring that any potential malicious behavior contained within the code cannot affect the host. It's a way to test and execute third-party applications without risking the integrity or security of the main system. Sandboxing provides a tightly controlled set of resources for guest programs to run in, such as scratch space on disk and memory, which prevents the programs from affecting other processes and data on the host system.
Which of the following is NOT an AWS Shared Responsibility Model devised by AWS?
The options A, B, and D are actual components of the AWS Shared Responsibility Model, focusing on container services, infrastructure services, and storage services, respectively. These models define the division of security responsibilities between AWS and the customer for each type of service. However, there is no distinct Shared Responsibility Model for Abstract Services as described in the options. Instead, abstract services fall under the broader categories of Infrastructure as a Service (IaaS), Platform as a Service (PaaS), or Software as a Service (SaaS), each with its own set of shared responsibilities.
James is working as a Network Administrator in a reputed company situated in Californi
a. He is monitoring his network traffic with the help of Wireshark. He wants to check and analyze the traffic against a PING sweep
attack. Which of the following Wireshark filters will he use?
James should use the Wireshark filtericmp.type==8 or icmp.type==0to detect a PING sweep attack. This filter will capture both ICMP echo requests and echo replies, which are used in PING sweeps to discover active hosts on a network. When conducting a PING sweep, an attacker sends ICMP echo requests (type 8) to multiple hosts and listens for echo replies (type 0). By monitoring for both types, James can effectively identify a PING sweep attack.
An attacker uses different types of password cracking techniques to crack the password and gain unauthorized access to a system. An attacker uses a file containing a list of commonly used passwords. They then
upload this file into the cracking application that runs against the user accounts. Which of the following password cracking techniques is the attacker trying?
The attacker is employing aDictionary attack, which is a method where a file containing a list of commonly used passwords is used to attempt to gain unauthorized access to user accounts. This technique relies on the probability that many users will use common passwords that are easy to guess. It is more efficient than a brute-force attack since it uses a predefined list of words, rather than trying all possible combinations of characters.
ARainbow table attackuses precomputed tables of hash values to crack encrypted passwords1.
Daniel works as a network administrator in an Information Security company. He has just deployed
an IDS in his organization's network and wants to calculate the false positive rate for his
implementation. Which of the following formulae can he use to so?
The false positive rate is a measure used to evaluate the performance of an IDS (Intrusion Detection System). It is calculated by dividing the number of false positives (FP) by the sum of false positives and true negatives (TN). The formula is:
FalsePositiveRate=FP+TNFP
This formula helps in determining how often the IDS incorrectly classifies an event as a threat, which is actually benign. A lower false positive rate indicates a more accurate IDS.
