When handling a motherboard, cards, or drive, which statement is NOT accurate?
A. You should not touch chips on the device.
B. You should not hold expansion cards by the edges.
C. You should not touch any soldered components on a card.
D. You should not touch edge connectors.
Answer: B
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A struct is used for a Node instead of a class because:
A. overloaded operators must always be used for the data members of a node B. we like to access the data members of the Node directly, and in a class, we should not do that C. a pointer cannot point to an object of a class, so there would be no way to link the nodes D. class objects cannot be created in heap memory
Formulate the following queries in relational algebra, tuple relational calculus, and domain relational calculus (the answers to these queries in SQL are given in the next 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. Flight contains details of the flights and flightNo 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.
If you want to modify the formatting or alignment of a chart element, you can do so in the ____ pane.
A. Modify B. Chart Changes C. Format D. Design
Why are most high-level programming languages essentially immune to buffer overflow problems?
What will be an ideal response?