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- Computer science Describe the distinctions between replication and duplication.Explain the concept of data replication, and describe the various replication models, such as master-slave and peer-to-peer.Explain the role of database replication in achieving high availability and fault tolerance. What are the common replication methods, and how do they work?
- Where does fragmentation come in? Differentiate between internal and external fragmentation.Explain the concept of thread-local storage (TLS) and its importance in multithreaded programming. Provide an example of when TLS might be used.What is meant by External Fragmentation and Internal Fragmentation?
- Compilers and assemblers are responsible for turning source files into files containing object code. First, the object files need to be linked together before they can be executed. Compilers have the potential to produce final executable files even in the absence of linking. What are some of the problems associated with using the second approach?Is external fragmentation for a purpose, and what can be done to prevent it? Computer scienceWhat is the difference between external and internal fragmentation ?
- What are some of the benefits and drawbacks associated with caching activities that are performed on disks?What are the benefits and drawbacks of caching disc writes?Suppose you have a 100GB database housed on a disk array that supports a transfer rate of 60MBps and a tape drive that supports 200GB cartridges with a transfer rate of 80MBps. How long will it take to back up the database? What is the transfer time if 2:1 compression is possible?