Al Ayuni Investment and Contracting Interview Questions and Answers

Promiscuous mode allows a network device to intercept and read all traffic on the network segment.

• Promiscuous mode is used primarily in network monitoring and analysis.

• In this mode, a network interface card (NIC) captures all packets, regardless of their destination.

• It is commonly used in packet sniffing tools like Wireshark.

• Example: A network administrator uses promiscuous mode to troubleshoot network issues by analyzing all traffic.

• Promiscuous mode can also be a security ri...read more

Datafiles are used to store data in a database system.

• Datafiles store actual data in a database system

• They are used to organize and manage data efficiently

• Datafiles can be used to store tables, indexes, and other database objects

• They are essential for the functioning of a database system

Memory ballooning is a technique used in virtualization to reclaim unused memory from virtual machines.

• Allows hypervisors to dynamically adjust memory allocation based on demand.

• Helps optimize resource utilization in environments with multiple VMs.

• Example: If a VM is using less memory than allocated, the hypervisor can reclaim that memory for other VMs.

• Works in conjunction with memory overcommitment, where more memory is allocated than physically available.

RAC stands for Real Application Clusters, a feature of Oracle Database that allows multiple instances to access a single database simultaneously.

• RAC enables high availability and scalability for Oracle databases.

• It allows multiple instances to run on different servers, providing load balancing and failover capabilities.

• RAC requires shared storage and a cluster interconnect for communication between instances.

• Examples of RAC implementations include Oracle RAC One Node and Orac...read more

Data Guard is a high availability and disaster recovery solution provided by Oracle for Oracle databases.

• Data Guard ensures high availability, data protection, and disaster recovery for Oracle databases.

• It involves creating standby databases that are synchronized with the primary database to provide failover capabilities.

• Data Guard can be configured in various modes such as Maximum Availability, Maximum Performance, and Maximum Protection.

• It allows for automatic failover in c...read more