10 Flashcards
Hardware RAID Level 1: (Select 3 answers)
- Requires at least 2 drives to implement
- Offers improved reliability by creating identical data sets on each drive (failure of one drive does not destroy the array as each drive contains identical copy of the data)
- Is also referred to as disk mirroring
Hardware RAID Level 5
- Requires at least 3 drives to implement
- Offers increased performance and fault tolerance (single drive failure does not destroy the array and lost data can be re-created by the remaining drives)
Hardware RAID Level 6:
- Requires at least 4 drives to implement
- Offers increased performance and fault tolerance (failure of up to 2 drives does not destroy the array and lost data can be re-created by the remaining drives)
Hardware RAID Level 10 (a.k.a. RAID 1+0): (Select 3 answers)
- Requires a minimum of 4 drives to implement
- Is referred to as stripe of mirrors, i.e. a combination of RAID 1 (disk mirroring) and RAID 0 (disk striping)
- Offers increased performance and fault tolerance (failure of one drive in each mirrored pair of disk drives does not destroy the array)
The term “Multipath I/O” refers to a framework that improves fault tolerance and performance by enabling additional, alternate routes for data that is being transferred to and from storage devices
True
A network hardware or software solution designed for managing the optimal distribution of workloads across multiple computing resources is known as:
Load balancer
The process of combining multiple physical network adapters into a single logical interface for increased throughput and redundancy is called:
NIC teaming
What is the name of a device that can provide short-term emergency power during an unexpected main power source outage?
UPS
Which of the following power redundancy solutions would be best suited for providing long-term emergency power during an unexpected main power source outage?
Backup generator
Which of the following would add power redundancy on a server box?
Dual-power supply
Which of the following answers refers to a device designed to distribute (and monitor the quality of) electric power to multiple outlets?
Managed Power Distribution Unit (Managed PDU)
A dedicated local network consisting of devices providing data access is called:
SAN
Restoring data from an incremental backup requires: (Select 2 answers)
- All copies of incremental backups made since the last full backup (
- Copy of the last full backup
A file-based representation of the state of a virtual machine at a given point in time is called:
Snapshot
What type of backups are commonly used with virtual machines?
Snapshot backups
In a differential backup strategy, restoring data from backup requires only a working copy of the last full backup.
False
Which of the following answers refers to a sequential-access backup media?
Magnetic tapes
A dedicated storage appliance that can be added to a local network is known as
NAS
An exact copy of the entire state of a computer system is known as:
System image
Which of the following answers refer to the concept of non-persistence? (Select 3 answers)
- Last known-good configuration
- Live boot media
- Known state reversion
Which of the answers listed below refers to a type of removable storage media that contains a portable, non-persistent OS?
Live boot media
The capability of a hardware or software system to process increasing workload without decrease in performance is known as:
Scalability
Examples of embedded systems include: (Select all that apply)
- Raspberry Pi
- Arduino
- Field Programmable Gate Array (FPGA)
Which of the following answers refer to industrial and manufacturing control systems? (Select 2 answers)
- SCADA
(SCADA is the acronym for Supervisory Control and Data Acquisition. SCADA is a computer-based system for gathering and analyzing real-time data to monitor and control equipment that deals with critical and time-sensitive materials or events.) - ICS
( ICS assets are the digital devices that are used in industrial processes. This includes all of the various components of critical infrastructure (power grid, water treatment, etc.)
An emerging field of innovative technologies, such as wearable tech or home automation is known as:
** IoT **
The term IoT, or Internet of Things, refers to the collective network of connected devices and the technology that facilitates communication between devices and the cloud, as well as between the devices themselves.
