Match each term about inline frames to its description
I. Width A. Another name for an inline frame
II. Height B. The attribute that specifies the content of the inline frame
III. iframe C. Specifies how wide the inline frame will display on the page
IV. src D. Specifies how high the inline frame will display on the page
V. Floating Frame E. The element used to add an inline frame to a Web page
C, D, E, B, A
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What developments made personal computing feasible?
What will be an ideal response?
Calculate the cardinality and minimum cost for each of the following Selection operations:
Using the Hotel schema, assume the following indexes exist: ? a hash index with no overflow on the primary key attributes, roomNo/hotelNo in Room; ? a clustering index on the foreign key attribute hotelNo in Room; ? a B + -tree index on the price attribute in Room; ? a secondary index on the attribute type in Room. nTuples(Room) = 10000 bFactor(Room) = 200 nTuples(Hotel) = 50 bFactor(Hotel) = 40 nTuples(Booking) = 100000 bFactor(Booking) = 60 nDistinct hotelNo (Room) = 50 nDistinct type (Room) = 10 nDistinct price (Room) = 500 min price (Room) = 200 max price (Room) = 50 nLevels hotelNo (I) = 2 nLevels type (I) = 2 nLevels price (I) = 2 nLfBlocks price (I) = 50 S1: ? roomNo=1 ? hotelNo=1 (Room) S2: ? type=‘D’ (Room) S3: ? hotelNo=2 (Room) S4: ? price>100 (Room) S5: ? type=‘S’ ? hotelNo=3 (Room) S6: ? type=‘S’ ? price < 100 (Room)
What is the effect when a binary search tree becomes unbalanced?
a. A binary search tree that is not balanced degenerates into a linked list with O(n) linear performance b. The binary search tree must linearly probe the nodes c. The binary search tree must re-insert the node at the root d. The binary search tree must be traversed like an array
You are working on an investigation and one of the pieces of evidence is a 4th Generation iPod Classic. It is black and has a 120GB capacity. On it are 6,240 songs. It has a cracked screen cover. Which of the following is an example of a class characteristic?
a. It is black. b. It has 6,240 songs. c. It has 120GB capacity. d. It has a cracked screen cover.