A method that performs some action other than returning a value is called a __________ method.

a. null
b. void
c. public
d. private


B

Computer Science & Information Technology

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Generate the relational algebra, tuple relational calculus, and domain relational calculus expressions for the following queries:

(a) List all hotels. (b) List all single rooms with a price below £20 per night. (c) List the names and cities of all guests. (d) List the price and type of all rooms at the Grosvenor Hotel. (e) List all guests currently staying at the Grosvenor Hotel. (f) List the details of all rooms at the Grosvenor Hotel, including the name of the guest staying in the room, if the room is occupied. (g) List the guest details (guestNo, guestName, and guestAddress) of all guests staying at the Grosvenor Hotel.

Computer Science & Information Technology

Copying text places it in the Clipboard, which is a temporary storage location in Microsoft Office applications

Indicate whether the statement is true or false

Computer Science & Information Technology

Which IPv6 router message is sent via multicast with a scope of link-local with the expectation that all local routers will identify themselves?

A) RA B) RS C) NS D) NA

Computer Science & Information Technology

In procedural languages ____ memory stores and fetches values to and from memory cells.

external random access read only flash

Computer Science & Information Technology