Which of the following is true?
a. Facelets are a combination of XHTML markup and JSF markup.
b. XHTML combines a page's content with its presentation.
c. You cannot dynamically insert values into a Facelets page.
d. None of the above.
a. Facelets are a combination of XHTML markup and JSF markup.
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If userA wants to send a secure message to userB using an asymmetric cryptographic algorithm, which key does userB use to decrypt the message?
A. userB's private key B. userB's public key C. userA's public key D. userA's private key
The Font Color gallery is located in the Color Group on the Design tab.
Answer the following statement true (T) or false (F)
In applications that cannot tolerate duplicates it may be necessary to use DISTINCT. However, the query plan needed to support DISTINCT requires a sort, which is expensive. Therefore you should only use DISTINCT when duplicates are possible in the result set. Using the schema of Section 4.8, check the following queries to see if duplicates are possible. Explain your answer in each case.
a. ``` SELECT S.Name FROM Student S WHERE S.Id LIKE ’1’ ``` b. ``` SELECT S.Id FROM Student S, Facu lty F WHERE S.Address = F.Address ``` c. ``` SELECT C.CrsCode, COUNT(*) FROM Transcript T GROUP BY T.CrsCode ``` d. ``` SELECT F.Name, F.DeptId, C.ClassTime, C.CrsCode, C.Semester, C.Year FROM Facu lty, Class C WHERE F.Id = C.InstructorId ``` e. ``` SELECT S.Name, F.Name, T.Semester, T.Year FROM Facu lty, Class C, Transcript T, Student S WHERE F.Id = C.InstructorId AND S.Id = T.StudId AND C.CrsCode = T.CrsCode AND C.SectionNo = T.SectNo AND C.Year = T.Year AND C.Semester = T.Semester ```
What is useful for memory profiling?
a. The Draw Nine-Patch tool b. The Android emulator c. The Android Device Monitor tool d. The Hierarchy Viewer in Pixel Perfect mode