Which of the following is a purpose for scanning?
A. to use open ports
B. to discover exploitable communications channels
C. to list IP addresses
D. to transfer the request to the Web server
Answer: B. to discover exploitable communications channels
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Include the saved data in your lab report.
What will be an ideal response?
Text can be typed directly into the Left function but it must be enclosed in quotation marks
Indicate whether the statement is true or false
Formulate the following queries in SQL (the answers to these queries in relational algebra, tuple relational calculus, and domain relational calculus were given in the previous section).
The following tables form part of a database held in a Relational Database Management System: Employee (empNo, eName, salary, position) Aircraft (aircraftNo, aName, aModel, flyingRange) Flight (flightNo, from, to, flightDistance, departTime, arriveTime) Certified (empNo, aircraftNo) where Employee contains details of all employees (pilots and non-pilots) and empNo is the key. AirCraft contains details of aircraft and aircraftNo is the key. and Certified contains details of the staff who are certified to fly an aircraft, and empNo/aircraftNo form the key. (1) List all Boeing aircraft. (2) List all Boeing 737 aircraft. (3) List the employee numbers of pilots certified for Boeing aircraft. (4) List the names of pilots certified for Boeing aircraft. (5) List the aircraft that can fly nonstop from Glasgow to New York (flyingRange > flightDistance). (6) List the employee numbers of employees who have the highest salary. (7) List the employee numbers of employees who have the second highest salary. (8) List the employee numbers of employees who are certified for exactly three aircraft.
________ allows the user to selectively extract data from different viewpoints.
A) An office support system (OSS) B) A transaction-processing system (TPS) C) Online analytical processing (OLAP) D) A decision support system (DSS)