A BAN is a type of PAN that wirelessly connects sensors worn by, carried by, implanted in, or attached to a human body.
Answer the following statement true (T) or false (F)
True
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How would you determine the longer name for the l (lowercase “el”) LDAP object class?
What will be an ideal response?
For each of the following queries, state whether the query is valid and for the valid ones should how each of the queries would be mapped onto a query on the underling base tables.
Consider the following view defined on the Hotel schema: CREATE VIEW HotelBookingCount (hotelNo, bookingCount) AS SELECT h.hotelNo, COUNT(*) FROM Hotel h, Room r, Booking b WHERE h.hotelNo = r.hotelNo AND r.roomNo ? b.roomNo GROUP BY h.hotelNo; (a) SELECT * FROM HotelBookingCount; (b) SELECT hotelNo FROM HotelBookingCount WHERE hotelNo = ‘H001’; (c) SELECT MIN(bookingCount) FROM HotelBookingCount; (d) SELECT COUNT(*) FROM HotelBookingCount; (e) SELECT hotelNo FROM HotelBookingCount WHERE bookingCount > 1000; (f) SELECT hotelNo FROM HotelBookingCount ORDER BY bookingCount;
Which of the symbols below is not a relational operator?
A. > B. && C. == D. !=
Answer the following statement(s) true (T) or false (F)
1. The BAND function block can contain up to eight input points. 2. OR logic is similar to placement in series, as all series devices must pass continuity before the outcome is allowed to happen. 3. In a two-input AND truth table, 0 AND 1 = 1. 4. Rockwell Automation's ControlLogix, PLC-5, and SLC 500 families can be programmed in function block diagram language in addition to standard ladder logic. 5. The normally closed PLC ladder logic instruction is true any time the input tag bit is not a 1.