SMC Corporation Interview Questions and Answers

To fix log space and tempdb issues, I would increase the size of the log file and move tempdb to a separate drive.

• Increase the size of the log file to prevent it from filling up too quickly

• Move tempdb to a separate drive to improve performance and prevent it from competing with other databases for space

• Regularly monitor and manage log space and tempdb usage to prevent future issues

High availability techniques ensure system uptime and minimize downtime.

• Redundancy of hardware and software components

• Load balancing to distribute traffic across multiple servers

• Clustering to provide failover capabilities

• Disaster recovery planning to ensure business continuity

• Automated monitoring and alerting to quickly identify and resolve issues

Blocking occurs when one transaction holds a lock on a resource that another transaction needs, while a deadlock occurs when two or more transactions are waiting for each other to release locks.

• Blocking occurs when a transaction is waiting for a resource that is locked by another transaction.

• Deadlock occurs when two or more transactions are waiting for each other to release locks.

• Blocking can be resolved by allowing the first transaction to complete and release the lock.

• Deadl...read more

A cluster in SQL Server is a group of servers that work together to provide high availability and scalability.

• A cluster is used to ensure that a database is always available, even if one server fails.

• It allows for load balancing across multiple servers to improve performance.

• SQL Server supports two types of clusters: failover clusters and active-active clusters.

• Failover clusters have one active server and one or more standby servers that take over if the active server fails.

• A...read more

Fragmentation is the process of breaking something into smaller pieces or parts.

• Fragmentation can occur in various fields such as computer storage, memory, and databases.

• In computer storage, fragmentation happens when files are broken into smaller pieces and scattered across different parts of the hard drive, making it slower to access the data.

• In memory, fragmentation occurs when there are small gaps between blocks of memory that cannot be used, leading to inefficient use of...read more

Replication is a process of copying and distributing data and database objects from one database to another.

• Replication is used to improve the availability and scalability of databases.

• It can be used for disaster recovery, reporting, and load balancing.

• There are three types of replication: snapshot, transactional, and merge.

• Snapshot replication copies the entire database to another server.

• Transactional replication copies only the changes made to the database.

• Merge replication...read more