D386 Hardware and Operating Systems Essentials - Set 1 - Part 2

Correct Answer: Complex Instruction Set Computer

CISC refers to a type of microprocessor architecture designed to execute a wide array of instructions, improving performance for complex tasks.

Correct Answer: They consist of two or more drives working in parallel

RAID (Redundant Array of Independent Disks) configurations utilize multiple drives to improve data redundancy, performance, and reliability.

Correct Answer: Duplicates data across two disks for redundancy

RAID 1 mirrors data on two disks, ensuring that if one disk fails, the data remains accessible on the other.

Correct Answer: Data striping across multiple disks

RAID 0 improves performance by distributing data across multiple disks but does not provide redundancy, meaning data is lost if one disk fails.

Correct Answer: Three

RAID 5 requires at least three drives to provide fault tolerance through parity data, allowing for data recovery if one drive fails.

Correct Answer: Writes parity data to two drives for enhanced fault tolerance

RAID 6 can withstand the failure of two drives simultaneously by storing parity information on two separate disks, providing additional data protection.

Correct Answer: Combining two different RAID types to gain the benefits of both

Nested RAID levels, such as RAID 0+1 or RAID 1+0, combine features from different RAID configurations to enhance performance and redundancy.

Correct Answer: To block unauthorized access while permitting outward communication

Firewalls are security devices designed to monitor and control incoming and outgoing network traffic based on predetermined security rules.

Correct Answer: Connects two different network architectures

Gateways serve as access points that allow different networks to communicate with each other, facilitating data transfer and protocol translation.

Correct Answer: A device that filters traffic between segments based on MAC addresses

Bridges operate at the data link layer to connect and filter traffic between different segments of a network.

Correct Answer: The radio waves or physical system that transports data

Transmission media encompasses all physical and wireless methods used to transmit data between devices in a network.

Correct Answer: To manage the flow of data across a network

A network operating system oversees resource sharing and communication between computers within a network, ensuring security and efficient data flow.

Correct Answer: Mesh topology

In a mesh topology, devices are interconnected in a way that provides multiple paths for data transmission, enhancing reliability and fault tolerance.

Correct Answer: One central node connects all other devices

In a star topology, all devices connect to a central hub or switch, allowing for easier management and troubleshooting.

Correct Answer: Devices connected in a loop where data flows in one direction

Ring topology allows data to circulate around the loop, with each device receiving and passing on the data to the next device.

Correct Answer: To transmit packets based on IP addresses

Routers determine the best path for data packets to travel across networks based on IP addresses, facilitating efficient data transfer.

Correct Answer: To examine the destination address and send frames to the corresponding devices

Switches operate at the data link layer, directing data frames to the correct devices on a local network based on MAC addresses.

Correct Answer: To receive and retransmit signals

Repeaters amplify signals to extend the range of data transmission over long distances in a network.

Correct Answer: It allows devices to communicate over a network

The TCP/IP protocol suite is the foundational communication protocol for the internet, enabling devices to exchange data effectively.

Correct Answer: TCP

The Transmission Control Protocol (TCP) ensures reliable delivery of packets through error-checking and sequencing, maintaining data integrity during transmission.