Section 2.5 Cybersecurity resilience implementation Flashcards
What term means that an organization’s IT systems are capable of operating continuously through adversities?
Resiliency
The ability to provide uninterrupted service consistently is the goal of maintaining a ___________ system.
High-availability
What concept allows resources and systems to grow or shrink automatically based on demand?
Scalability
What specifies in measurable terms the level of service to be received by the customer?
Service Level
What are the 2 key components of redundancy planning?
High availability
Fault Tolerance
What kind of systems protect your systems and network equipment and provide redundancy for maintaining high-availability?
Fault Tolerant systems
What concept helps to eliminate single points of failures?
Redundancy
What is the most common type of service interruption?
Failed Hardware
High availability environments require what kind of services to keep up their availability?
redundant services
What concept allows uninterrupted access to critical assets in a near seamless manner by being able to reroute in the event of a controller failure?
Multipath Capability
What defines the concept of using several separate hard drives to create one logical drive?
Redundant Array of Independent Disks (RAID)
What is the ability to insert and remove hardware while the entire system is still running? Hard drives in a Raid system are the most common type of this device.
Hot swap
What refers to the ability to insert and remove hardware while a system is in a suspended state?
Warm swap
What refers to a device already installed in the system that can take over at any time when the primary device fails?
Hot spare
Mirroring the contents of one hard drive on another is called RAID level?
RAID level 1
What RAID technique spreads the contents of a logical hard drive across several physical drives and includes parity information to help rebuild the data?
Striping
What are the characteristics of RAID level 1+0?
4 hard drive minimum; Disk striping with mirroring
What allows admin to balance the load traversing a network across several resources?
Load Balancing
What allows you to use several servers to perform the services of one; resources of all the servers can be used to perform the same task?
Clustering
What type of cluster means that both servers in the cluster are up and running and actively responding to requests?
Active/active
What type of cluster means that one server is actively responding to requests while the other server acts as a live standby?
Active/passive
What concept uses network cards to provide redundancy and high availability in servers with network communications?
NIC Teaming
What contains a battery that can run a server for a period after a power failure, enabling you to shut down the system safely and save any data?
Uninterruptible power supply
For large organizations with critical high-availability requirements, a more expensive option for backup power is the use of a __________ that runs on a battery or fuel?
Generator
What displays current power consumption and allows for monitoring to prevent overloads and the ability to hot swap between power sources without powering down
Managed Power Distribution Units
What determines how long data should be backed up and kept, often driven by specific legal requirements?
Data Retention policies
Which backup includes all files selected on the system?
Full Backup
What backup includes only those files that have been modified since the previous full or incremental backup?
Incremental backup
What backup saves only the files that have been changed since the last full backup?
Differential backup
What enables you to take a picture of system configurations at a known-good point in time and roll back to that configuration at some point in the future if the system becomes unstable or is corrupted?
Snapshot
What is an alternative for offsite storage of physical backup media?
Online backup services
What backup method involves performing a full backup every day, using the same backup media each time?
Son Backup Method
What backup method uses a combination of full and differential or incremental backups on a weekly basis?
Father-son backup method
What boots directly from trusted media with a last known good configuration?
Live boot media
What means that anything malicious or unauthorized currently residing on the main drive can likely be overcome?
nonpersistence
What do you call a technology that is used to increase the performance and/or reliability of data storage with two or more drives working in parallel?
RAID
What is the establishment of multiple physical routes between a server and the storage device that supports it?
Multipathing (SAN or I/O)
What do you call dual network cards, paired together to give maximum throughput?
NIC Teaming
What can help maintain service availability in cyber attack scenarios?
Load Balancers
What was designed to keep connected systems running for a limited time, enabling graceful system shutdown?
Uninterruptible Power Supply
What do you call a hardware device that contains a large number of fast disks, such as Solid-State Drives (SSD’s), usually isolated from the LAN on its own network?
SAN
What do you call a collection of servers, storage, switches and other devices? They enable more robust redundancy.
SAN Fabric
Data replication between _____________ can provide service-level resilience.
SAN fabrics
With __________, VM files can be copied across onto a second physical host with no downtime.
live migration
With ____________, the files for a virtual machine are not copied from one server to another and thus downtime is minimized.
SAN migration
What backup type is useful when data is accessed by using a Universal Naming Convention (UNC) path rather than a LUN, as with a SAN?
Network-attached storage (NAS)
What backup type is good for fast backups of large data sets, common with SQL databases or email?
SAN
What backup types support server and file share backups?
Cloud backup solutions
What term means the ability of a system to handle faults in a service like power, network, or hardware failures?
Fault Tolerance
