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- Given the following ls -l output: drw-r-xr-x. 2 root accounting_grp 4096 Jan 28 19:0 accounting/ What is the access permission for the ‘accounting’ folder (directory)? Write the command to change the access permission of the accounting folder (directory), so that the owner can read and execute, and the group and everybody else (world) can only read the file.Classify each of the following vulnerabilities using the PA model. Assume that the classification isfor the implementation level. Remember to justify your answers.(a) The presence of the “wiz” command in the sendmail program (b) The failure to handle the IFS shell variable by loadmodule (c) The failure to select an Administrator password that was difficult to guess (d) The failure of the Burroughs system to detect offline changes to filesQUESTION 4 In the context of management features included in Windows 10, which of the following statements is true of Active Directory? a. It allows administrators to control authentication to Windows 10 clients without manually configuring user accounts. b. It allows administrators to configure thousands of operating system settings on Windows 10 computers. c. It contains information about Windows 10 updates that are provided by Microsoft for free. d. It is used by application developers to perform common functions like opening and writing to a file.
- Classify each of the following vulnerabilities using the PA model. Assume that the classification isfor the implementation level. Remember to justify your answers.(a) The presence of the “wiz” command in the sendmail program (see Section 24.2.9).(b) The failure to handle the IFS shell variable by loadmodule (see Section 24.2.9).(c) The failure to select an Administrator password that was difficult to guess (see Section 24.2.10).(d) The failure of the Burroughs system to detect offline changes to files (see Section 24.2.7) PA : Improper protection domain initialization and enforcement Improper choice of initial protection domain (domain) Improper isolation of implementation detail (exposed representations) Improper change (consistency of data over time) Improper naming (naming) Improper deallocation or deletion (residuals) Improper validation (validation of operands, queue management dependencies) Improper synchronization Improper indivisibility (interrupted atomic…Clients are reporting slowness when attempting to access a series of load-balanced APIs that do not require authentication. The servers that host the APIs are showing heavy CPU utilization. No alerts are found on the WAFs sitting in front of the APIs. Which of the following should a security engineer recommend to BEST remedy the performance issues in a timely manner? Options: A Implement rate limiting on the API. B Implement geoblocking on the WAF. C Implement OAuth 2.0 on the API. D Implement input validation on the API. if you could explain why you chose that correct choice, Id appreciate it. Thank you!1. The _________ periodically receives a __________ and a blockreport from each ______ in the __________. A) Cluster, heartbeat, datanode, namenode B) Namenode, heartbeat, datanode, cluster C) Datanode, heartbeat, cluster, namenode D) Datanode, cluster, heartbeat, namenode 2. Which of the following conditions is suitable for HDFS? A) Large file size B) Write Many, Read Once C) Low-latency (short waiting time) data access D) All of the above 3. Which of the following about storing HDFS blocks is correct? A) Spread HDFS data uniformly across the datanodes in the cluster. B) Keep one of the replicas of a block on the same node as the node that is writing the block. C) Spread one replica of a block across another rack so that cluster can survive loss of whole rack. D) All of the above
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- Answer the following which is true false Hard links must be located on the same filesystem as the target, while symbolic links do not have to be located on the same filesystem as the target. Is this true or false?Write a script that: Deletes all previously created directories from C:\bkp\Firefox\ Writes the amount of memory used by Firefox to a file C:\bkp\Firefox\%DATE% %TIME%\firefox.txt (%DATE% and %TIME% are current date and time) (if Firefox is running) Kills Firefox process (if it is running) Archives content of the Firefox profile directory to C:\bkp\Firefox\%DATE% %TIME%\firefox.zip Deletes the original Firefox profiles directory Shuts down the computer1.Which of the following is NOT a countermeasure to prevent buffer overflow attacks? Disabling firewalls Implementing input validation Implementing executable space protection Implementing stack canaries 2.In a buffer overflow attack, what is the attacker trying to achieve? Executing arbitrary code Stealing user credentials Shutting down the target system Disrupting network traffic 3.Name ONE programming language which is NOT vulnerable to buffer overflow.