Which of the following is a database object that physically stores all columns that are needed to query a single table?
A. foreign key table
B. primary key table
C. covering index
D. composite index
Answer: C
Computer Science & Information Technology
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Given the following character array
char[] h = {‘H’, ‘E’, ‘L’, ‘L’, ‘O’}; Write a Java statement that will create a new String object from the character array.
Computer Science & Information Technology
A stroke that is really not a stroke at all is called a(n) ____ stroke.
A. illusionary B. disguised C. false D. pseudo
Computer Science & Information Technology
_____ technology uses high-frequency radio waves to track physical objects.?
A. ?Redundant array of independent disks (RAID) B. ?Radio frequency identification (RFID) C. ?Enterprise resource planning (ERP) D. ?Management information system (MIS)
Computer Science & Information Technology
Which connector is currently used in wired networks?
A. RF-11 B. BNC C. RS-232 D. 8P8C
Computer Science & Information Technology