Which of the following is an example of threshold monitoring?
A) Detecting a threat and blocking the IP address of the intruder
B) Infiltrating hacker online groups
C) Monitoring failed login attempts
D) Monitoring how programs use system resources
C) Monitoring failed login attempts
Computer Science & Information Technology
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To ____ fonts means to incorporate the fonts used in a Flash project in the project itself.
a. embed b. associate c. integrate d. concatenate
Computer Science & Information Technology
What is Min-height?
What will be an ideal response?
Computer Science & Information Technology
Consider the following schema, where the keys are underlined (di?erent keys are underlined di?erently):
Professor(Id, Name, Department) Course(CrsCode, Department, CrsName) Teaching(ProfId, CrsCode, Semester)Consider the following query:
SELECT C.CrsName, P.Name
FROM Professor P, Teaching T, Course C
WHERE T.Semester=’F1995’ AND P.Department=’CS’
AND P.Id = T.ProfId AND T.CrsCode=C.CrsCode
Assume the following statistical information:
1. 1000 tuples with 10 tuples per page in Professor relation
2. 20,000 tuples with 10 tuples per page in Teaching relation
3. 2000 tuples, 5 tuples per page, in Course
4. 5-page bu?er
5. 50 di?erent values for Department
6. 200 di?erent values for Semester
7. Indices
Professor relation
On Department: Clustered, 2-level B+ tree
On Id: Unclustered, hash
Course relation
On CrsCode: Sorted (no index)
On CrsName: Hash, unclustered
Teaching relation
On ProfId: Clustered, 2-level B+-tree
On Semester, CrsCode: Unclustered, 2-level B+ tree
a. First, show the unoptimized relational algebra expression that corresponds to the above SQL query. Then draw the corresponding fully pushed query tree.
b. Find the best execution plan and its cost. Explain how you arrived at your costs.
Computer Science & Information Technology
The ________ feature identifies a comment as completed so you know what other comments you still need to finalize
Fill in the blank(s) with correct word
Computer Science & Information Technology