Bissoy.com
Doctors Medicines MCQs Q&A

If ___________ are not obtained in undo operation it will cause problem in undo-phase.

If ___________ are not obtained in undo operation it will cause problem in undo-phase. Correct Answer Lower-level lock

Operations acquire lower-level locks while they execute, but release them when they complete; the corresponding transaction must however retain a higher-level lock in a two-phase manner to prevent concurrent transactions from executing conflicting actions.

Related Questions

. A, B, C, D, E and F compared their marks in an examination and found that A obtained the highest marks, B obtained more marks than D, C obtained more than at least two others and £ had not obtained the lowest marks. Consider the following statements : Statement 1: At least two members obtained less marks than C Statement 2: E and F obtained the same marks Which of the above statement(s) is/are sufficient to identify the one with the , lowest marks ?
The ratio of marks obtained by Rohit in Mathematics to the marks obtained in Science is 8 : 7, the marks of English is 10% more than the marks obtained in Science and the marks obtained in Hindi is 10% less than the marks obtained in Mathematics. If each subject is of 100 marks and the sum of marks of English and Hindi is 149, then find the percentage of passing mark where the passing marks is 40 more than the marks obtained by Rohit in Mathematics.
In a test, Randhir obtained more marks than the total marks obtained by Kunal and Debu. The total marks obtained by Kunal and Shankar are more than those of Randhir. Sonal obtained more marks than Shankar. Neha obtained more marks than Randhir. Who amongst them obtained highest marks?
Consider a Simple Checkpointing Protocol and the following set of operations in the log. (start, T4); (write, T4, y, 2, 3); (start, T1); (commit, T4); (write, T1, z, 5, 7); (Checkpoint); (start, T2); (write, T2, x, 1, 9); (commit, T2); start, T3); (write, T3, z, 7, 2); if a crash happens now and the system tries to recover using both undo and redo operations, what are the contents of the undo list and the redo list?
Consider a simple checkpointing protocol and the following set of operations in the log. (start, T4); (write, T4, y, 2, 3); (start, T1); (commit, T4); (write, T1, z, 5, 7); (checkpoint); (start, T2); (write, T2, x, 1, 9); (commit, T2); (start, T3), (write, T3, z, 7, 2); If a crash happens now and the system tries to recover using both undo and redo operations, what are the contents of the undo list and the redo list?
Which shortcut key is used to undo changes (UNDO) in Ms-Word?
To perform logical redo or undo, the database state on disk must be operation ___________ that is, it should not have partial effects of any operation.
The following sentences form a paragraph. These four parts are numbered as P, Q, R and S. They are not given in their proper order. Read the sentences and choose the alternative that arranges them in correct order. P. Inverse problem refers to the scientific problem of estimating the different causes that led to a particular outcome.  Q. This is in contrast to the forward or the direct problem where scientists try to find the outcome that results from a series of causes. R. A scientist observing a photograph, for instance, would be faced with the inverse problem while trying to figure out the various causal factors that combined to form the final photograph. The inverse problem is applied to understand processes in a wide variety of sciences. S. Scientists trying to understand an observation may at times have to work backwards to estimate the causal factors behind it.
Consider the following provision in Section 300 of the Indian Penal Code:
Several culpable states of mind are referred to with the:
1. intention to cause death
2. knowledge that the act is so imminently dangerous that it must in all probability cause death
3. intention to cause such bodily injury as the offender know to be likely to cause death of the person to whom harm is caused
4. intention of causing such bodily injury as is sufficient in ordinary course of nature to cause death.
The correct order of the sequence in which they are placed in the provision is:
Which of the given options best describes the truthfulness of the following statements? (i) Ctrl + Y is used to perform "undo" operation in MS-Word. (ii) Ctrl + Z is used to perform "redo" operation in MS-Word. iii) Ctr l+ E  is used to Center the text