Question 10 To which type of database Postgres mainly belongs: Key/Value Relational Graph Document Question 11 Virtualization has security vulnerabilities because of isolation is compatible with all different hardware vendors narrows down the operating system choice requires higher resources for the guest OS Question 12 To which type of database MongoDB mainly belongs: Relational O Key/Value O Graph O Document

Question 10 To which type of database Postgres mainly belongs: Key/Value Relational Graph Document Question 11 Virtualization has security vulnerabilities because of isolation is compatible with all different hardware vendors narrows down the operating system choice requires higher resources for the guest OS Question 12 To which type of database MongoDB mainly belongs: Relational O Key/Value O Graph O Document

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

What is the CAP theorem, and how does it relate to the choice between consistency, availability, and partition tolerance in distributed database systems?
Explain the concept of distributed deadlock detection and resolution in a distributed database system. What strategies can be employed to handle deadlocks efficiently?
What is a distributed deadlock, and how can it be prevented or resolved in a distributed database system?
Describe the two-phase commit protocol and the three-phase commit protocol used in distributed database systems. What are the advantages and drawbacks of each?
How do "priority-based" concurrency control mechanisms ensure fair access to database resources?
Distributed database management systems have the same concurrency control difficulties as other forms of distributed systems. Is it required to employ concurrency control techniques such as two-phase locking (commonly known as 2PL) in a setup with no duplicates? Explain.
The problems with concurrency control in distributed database management systems are similar to those in other types of distributed systems. Do we need to use two-phase locking (2PL) or some other kind of concurrency management when we have a unique setup? Explain.
In many database systems, processes (also known as threads) communicate with one other by using shared memory resources.It's important to know whether or not the shared memory space is restricted.What's the best way to serialise access to shared memory data? Your response must be logically sound.
2. CHAPTER TRANSACTION MANAGEMENT Consider the case of immediate database approach and assume that, after a crash, the log contains the following records: Transaction Object Old Value New Value LSN L001 T1 (starts) P. 400 500 LO02 T1 300 400 LO03 T1 L004 T2 (starts) LO05 T1( commits) LO06 T3 (starts) R. 100 200 LO07 T2 700 800 LO08 T3 LO09 T4 (starts) L010 T3 (commits) T4 T. 800 900 L011 i) Which transaction(s) will be redone during recovery process? ii) Which transaction(s) will be undone during recovery process? ii) What will be the value of data item 'P' and 'T' after the recovery?
Distributed Database Systems face the same concurrency management challenges as any other distributed system. Is it necessary to employ 2PL (two-phase locking) techniques when no fragments are replicated? Explain.
For what purpose was the Lightweight Directory Access Protocol (LDAP) standard created if it can simply be built atop any existing database infrastructure?
Problem You'dlike to define a read-only attribute as a property that only gets computed on access. However, once accessed, youd like the value to be cached and not recomputed on each access.