WorksheetsHCIA Storage CertKingdom101-200
Total questions: 101
Worksheet time: 51mins
The central backup question is: How much loss can be tolerated determines how much to invest in backup?
TRUE
FALSE
In HUAWEI OceanStor, which licensed feature is best described as: periodically detects hot-spot data and promotes them from low-speed storage media to high-speed media.
SmartMove
SmartMigration
SmartMotion
SmartTier
Why storage systems has more than one storage controllers in the Dual Storage Controller Architecture?
2 controllers can complete a single I/O operation much faster.
To provide redundancy in case of failure of a single controller.
To have more energy savings since the performance is doubled.
Single storage controller architecture is obsolete.
In Windows 2012 deleting data from a volume, based on a Thin LUN, means that NO storage space will be reclaimed by the HUAWEI OceanStor.
TRUE
FALSE
In HUAWEI OceanStor,HyperSnap of a LUN uses the Copy On Write method to keep track of changes blocks
TRUE
FALSE
Lifecycle Management Of Information and Data consists of 5 different stages. Which of the following is the second stage?
Maintenance.
Transmission.
Generation.
Usage.
In a NAS environment entire files are sent across the ethernet based network. The NAS server however stores these files in the form as SCSI blocks mostly on multiple disks using RAID protection.
TRUE
FALSE
Huawei V3 series storage system hardware includes controller enclosures and disk enclosures. Which of the following statements about controller enclosures is correct?
When the external power supply fails, BBU modules provide backup power for all disks.
When the external power supply fails, BBUs can supply power to enable data synchronization from the cache to disks in disk enclosures.
If BBUs become faulty, the service system will be interrupted.
When the power input is normal, BBUs are in the standby state.
What is the main purpose of backup battery units (BBU) in storage controllers?
To maintain the power for clock synchronization.
To power the interface modules.
To provide additional power to storage controller to speed up the I/O.
To ensure that the non completed I/O is not lost during power outage.
Statement 1: If possible it is always advised to make only Full Backups Statement 2: LAN free backups typically run slower than LAN based backups.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
IP SAN uses underlying optical networks to connect servers and storage systems.
TRUE
FALSE
Statement 1; NAS systems must be interconnected using fiber optic cables. Statement 2: A network protocol is the way in which an operating system accesses a file that is on a network connected device.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
Which of the following statements about HUAWEI OceanStor SmartTier dynamic storage tiering technology is NOT true?
The SmartTier calculates and analyzes the activity level of data.
The SmartTier automatically and dynamically matches data from different activity levels with storage media of different characteristics.
The SmartTier data relocation activities are based on configured policies.
Data statistics, analysis, and relocation activities of the SmartTier affect service continuity and data availability.
What is the purpose of context for data?
Context gives meaning to the data collected. Without context the data is meaningless.
Context gives comparison between data and information.
Context is only found in data and not in information.
Context is optional when collecting and analyzing data.
A user is having intermittent problems connecting to their shared network storage, A network technician is able to determine that there is a problem within the network cabling in between the workstation and the switch. All other users are able to connect successfully to the network. Which of the following is the MOST likely cause?
Patch cable is a crossover cable instead of straight-through.
Cable has been cut somewhere within the wall.
Crosstalk and interference are occurring.
Cable is not connected at the patch panel.
Grid storage employs the combination of large scale serial distributed storage to provide even distribution of storage across all nodes.
TRUE
FALSE
Data and Information are the same thing.
TRUE
FALSE
Most data generated by the Internet industry is structured data, amounting to 80% of total data.
TRUE
FALSE
Which is a typical application example of PaaS?
Webmail
Microsoft Office365
Microsoft Azure
Amazone Elastic Compute cloud
When using LAN-based backups it is best to create a dedicated backup network.
TRUE
FALSE
Statement 1: Synchronous replication is often possible over distances of more than100k Statement 2: Asynchronous replication must be used when the host has a file system that is Linux based.
Statement 1 and 2 are true.
Statement 1 is true; Statement 2 is false.
Statement 1 is false; Statement 2 is true.
Statement 1 and 2 are false.
Which of the following statements about the differences between DAS and SAN is incorrect?
SAN uses the Fibre Channel or iSCSI protocol and therefore offers better scalability.
DAS and SAN are both external storage and can achieve storage resource sharing easily.
DAS applies to small and medium LANs that have general storage capacity requirements and only a small number of servers.
SAN applies to mid-range and high-end storage application environments such as key databases, centralized storage, mass storage, backup, and disaster recovery.
SAS uses a point-to-point connection design to enable a dedicated link to be established between two devices in the communication.
TRUE
FALSE
It is an electronic device controlled by a motor that moves the hard drive head arm. Which of the following component fits the above description?
Actuator.
Spindle,
Platter.
Motor.
The mount command is used in Linux-based clients to connect the client to the NFS share.
TRUE
FALSE
Which of the following is NOT true for a tape library?
Should be in the same datacenter as the production data for easy restores.
Can be a disk based Virtual tape library.
Ideally allows remote connections using FC and/or iSCSI.
Backup software will allow multiple backup jobs to run simultaneously.
Which of the following are deployment modes of cloud computing? (Multiple Choice)
Public cloud
Private cloud
Hybrid cloud
E-Government cloud
Which of the following is correct? (Multiple Choice)
Only when a snapshot is activated will the system record all changes to the original LUN.
A snapshot needs to be removed from the LUN group to be fully unmapped.
SmartTier supports a High Performance, a Performance, a High Capacity and a Capacity Tier.
To write data to the secondary LUN of a clone pair, the pair must be split.
A zone in a FC switch determines which ports of the FC switch can be connected together.
TRUE
FALSE
Which of the following is not a component of a backup system?
Backup software
Backup media
Backup server
Backup policy
Statement 1: Disaster Recovery plans eliminate the need for backups on tape or disk. Statement 2: With the design of the DR plan one should always assume the worst possible scenario.
Statement 1 and 2 are true.
Statement 1 is true; Statement 2 is false.
Statement 1 is false; Statement 2 is true.
Statement 1 and 2 are false.
What does throughput refers to In storage systems?
Amount of data that can be received and written to the storage medium in a period of time
Amount of data that can be transmitted and received over network in a period of time.
Amount of signals that can be sent or received by processors in a period of time.
Amount of calculations that can be processed in a period of time.
What does throughput refers to In storage systems?
Amount of data that can be received and written to the storage medium in a period of time.
Amount of data that can be transmitted and received over network in a period of time.
Amount of signals that can be sent or received by processors in a period of time.
Amount of calculations that can be processed in a period of time.
In a clustered NAS architecture, which of the following allows multiple file system to be consolidated and does not need to be managed separately?
Global Namespace.
Global Sharing.
Global Cache.
Global Concurrency.
Select the correct statements that describes the properties of Distributed Object Storage Architecture.
Metadata servers manages the access requests.
Does not support x86 servers.
Clients can pinpoint the location of targeted data without metadata servers,
Multi node concurrent I/O connection.
Which of the following statements about LAN-free backup is incorrect?
Backup data flows do not consume LAN resources.
The backup agent does not affect the performance of application servers.
Backup performance is improved compared to LAN- based backups.
Network performance is not affected.
Which of the following system model is a direct representation of the SCSI connection between the SCSI Initiator and Target?
Serverless Architecture.
Peer to Peer Architecture.
Browser/Client Architecture.
Client/Server Architecture.
SmartThin provided by HUAWEI OceanStor storage systems is a technology that manages storage space by allocating storage resources on demand. Based on virtualization, SmartThin reduces physical storage resources to be deployed, maximizing storage space use efficiency.
TRUE
FALSE
Because of the addition of the Data Center Bridging technology .today iSCSI is, just as FC, a lossless protocol.
TRUE
FALSE
Which of the following are common RAID types.
RAID 1
RAID 5
RAID 0+1
RAID 50
Statement 1: Port zoning is preferred for zoning a FC switch when there are a lot of changes to the patch points. Statement 2: Alias zoning is a user friendly version of soft zoning.
Statement 1 and 2 are true
Statement 1 is true; Statement 2 is false
Statement 1 is false; Statement 2 is true
Statement 1 and 2 are false
Which of the following statements about switched fabric topology in Fibre Channel SANs is NOT true?
It is the most widely used topology that supports a maximum of 127 devices.
Multiple pairs of nodes connecting to switches can communicate simultaneously.
The fault of one node in a zone does not affect services on nodes in other zones.
The switches leverage zoning to manage network structure and provide the best interconnection form.
Select the features that are commonly available in High End storage systems.
Global Cache
Second-level Data Copying
SSD Optimization
ATA Drive Optimization
Currently all OceanStor V3 devices support SAS at 12 Gb/s.
TRUE
FALSE
You are the storage administrator of a media company that stores a lot of media files such as videos. You are asked to propose a proper storage architecture for a new storage system that stores all the video and graphic files of the company. The requirement is that it could run on commodity hardware in a distributed manner for unstructured data. Choose which one of the following architecture would be the better option.
Block Storage Architecture.
Clustered NAS Storage Architecture.
Distributed Storage Architecture.
Distributed Object Storage Architecture.
Storage controllers can be separated from the chassis of disk enclosures. It does not need to be integrated in design with the disk enclosures.
TRUE
FALSE
Statement 1: LAN based backup strategies are preferred as they are the most cost efficient method and offer the highest performance. Statement 2: Any backup strategy should provide in storing production data and backup data in different physical locations.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
Which of the following is not a port type defined by Fibre Channel?
E-Port
F-Port
G-Port
NL-Port
Which is NOT the limitation of DAS, compared with SAN?
Poor scalability
Large investment
Difficult resource sharing
Decentralized management
Which of the following are the 3 layers of SCSI Initiator Model?
SCSI Link Layer.
SCSI Network Layer.
SCSI Middle Layer.
SCSI Device Driver Layer.
Which one of the following component is responsible for rotating the disk platter in the disk drive?
Spindle.
Actuator.
Control Circuit Board.
Read/Write Arm.
When the RPO is minutes instead of hours the best backup method is traditional Tape backup.
TRUE
FALSE
A company that primarily has static data (like map data or JPG files) does not profit much from the HUAWEI OceanStor SmartTier functionality.
TRUE
FALSE
Which of the following disks has the best performance in terms of speed?
NL-SAS
SAS
SSD
SATA
What is best described as: the time it takes for the desired data to be beneath the read head when the head is on the correct track?
Rotational latency
Rotational speed
Seek time
Throughput
The disadvantage of full backup is that it requires the last full backup and the most recent differential backup to fully restore data.
TRUE
FALSE
Select which of the following which is not a properties of Distributed Object Storage Architecture.
Automatic load balancing.
Online expansion.
Global namespace.
Centralized nodes.
Which of the following is the common physical size division of the surface of the hard disk?
Track
Sector
Cylinder
Partition
Which of the following statements about SAS is false?
SAS is a point-to-point, full-duplex, and dual-port interface.
SAS drivers are incompatible with SATA controllers.
SAS features high performance and high reliability compared with SCSI.
SAS offers powerful scalability compared to SATA.
Which of the following statements about block virtualization technology for Huawei storage systems are correct?
Data is distributed to all disks, fully leveraging the read/write processing capability of a storage system.
A RAID group is formed in the unit of physical disks.
A CKG is the unit used in applying for space, releasing space, and relocating data.
Data reconstruction efficiency improves significantly.
Match the RAID level with the characteristics. (1) RAID 0 (2) RAID 5 (3) RAID 10 (4) RAID 6 (a) Cost effective (b) Allows double disk failure (c) Highest performance (d) No data protection
1-a; 2-d; 3-b; 4-c
1-d; 2-a; 3-c; 4-b
1-d; 2-a; 3-b; 4-c
1-a; 2-b; 3-c; 4-d
A device can have one WWPN but multiple WWNN's.
TRUE
FALSE
Which of the following is not a characteristic of the Cloud?
Ubiquitous Access.
Shared pool of configurable resources.
On Demand Self Service.
Quick analysis of vast amount of data.
Which of the following are the 3 layers of SCSI Target Model?
Network Layer.
Port Layer.
Middle Layer.
Device Layer.
What does the term RPO mean?
Return Purchase Order
Recover Plan Objective
Restore Point Objective
Recovery Point Objective
Statement 1: We have a a RAID5 protected group of disks. The protection level increases if we add more disks to the group. Statement 2: With a RAID 10 set the number of disks must be greater than 8 to always survive a dual disk failure.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
Which of the following describe DAS?
A storage device connects to a host using the SCSI-based bus architecture.
DAS is unfavorable to storage resource sharing.
The host CPU has a work load when storing data.
Long-distance transmission is supported between a host and a storage device.
The components of a storage device are redundant, including controller modules, management modules, BBU modules, interface modules, power modules, and fan modules. Component redundancy ensures system reliability.
TRUE
FALSE
Statement 1: OceanStor Dorado systems are designed for high performance environments. Statement 2: OceanStor Dorado systems are so-called All Flash Arrays.
Statement 1 and 2 are true.
Statement 1 is true; Statement 2 is false.
Statement 1 is false; Statement 2 is true.
Statement 1 and 2 are false
Statement 1: Deduplication reduces the amount of stored data. Statement 2: Deduplication is performed on file level only.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
The failure of an SSD is more predictable than that of other disk technologies.
TRUE
FALSE
Which of the following is NOT the characteristics of the active-active mode of a storage controller?
Two controllers process the I/O requests from application servers concurrently.
If a controller becomes faulty, the other takes over the work of the faulty controller without disrupting ongoing services.
The primary controller processes the I/O requests from application servers and the secondary controller is in the idle state.
The active-active mode achieves load balancing, full utilization of resources, and system performance improvement.
The HyperSnap functionality can be used to improve or optimize a company's backup strategy.
TRUE
FALSE
Based on the new industrial revolution, what are the changes in the trend of ICT? (Multiple Choice)
ICT trend is changing slowly with little significant changes.
The initial phases of ICT focuses on office automation but slowly changed towards changing business flows.
ICT is slowly being replaced by other new technologies such as IT and CT.
ICT has become the core in the production systems in the recent years.
Which of the following statements about RAID 10 are correct? (Multiple Choice)
RAID 10 applies to scenarios with demanding requirements for speed and fault tolerance.
RAID 10 requires at least four member disks.
In RAID 10, if two member disks in the RAID 1 group fail, data read proceeds normally.
Data is mirrored and then striped in RAID 10.
In order to make full use of storage resources, on which tier are SSDs usually configured in a tiered storage system?
Capacity tier
Performance tier
High-performance tier
Offline storage
Which of the following statements is NOT true for a SAN solution?
Block based storage.
Long distance connections not possible.
Contains no Single Points Of Failure.
Multiple protocols possible.
Statement 1: FCoE is preferred over iSCSI because it uses fiber optic cables that can be much longer than Ethernet cables. Statement 2: FCoE is preferred over iSCSI because we do not need any Ethernet switches anymore.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
Which of the following licenses requires at least two OceanStor systems that are connected over a WAN/LAN?
SmartTier
RemoteReplication
HyperSnap
SmartThin
In which layer in the architecture of a typical Big Data processing system does the data mining and business intelligence process are performed?
Application/Presentation Layer.
Data Processing Layer
Data Analysis Layer.
Data Storage Layer.
What statement about the SATA and SAS technologies is true?
Both use serial communication.
SATA and SAS support the same maximum number of devices on the bus.
Both use full-duplex communication.
Both SATA and SAS are intelligent protocols with intelligent devices.
The restore time objective (RTO) specifies the time needed to recover the data and servers after after a disaster has occured,
TRUE
FALSE
Situation: Disk Domain A has 40 disks, Disk Domain B has 20 disks. True or False: the rebuild time for a failed disk in Disk Domain B is longer than for a failed disk in Disk Domain A.
TRUE
FALSE
Which statement is true about RAID 2.0+?
Chunks belonging to a file will never be written on the same physical disk.
RAID 2.0+ has a higher RAID overhead than traditional RAID types.
With RAID 2.0+ it is supported to select no hot spare disks.
RAID 2.0+ allows for a complete enclosure to fail without causing data loss.
Statement 1: The higher the number used to indicate the RAID level, the higher the overhead Statement 2: RAID 10 stripes the data, then mirrors the stripe set.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
What is the main difference between desktop grade hard drives with enterprise grade hard drives which is the deciding factor in hard drive usage?
The presence of mechanical parts.
The performance of the hard drive.
The capacity of hard drive.
The lifespan of hard drive.
Storage array is a network device used to switching network signals or data. It can provide a dedicated communication channel between any 2 nodes in the network that is connected.
TRUE
FALSE
Which of the following statements about RAID 5 are correct? (Multiple Choice)
RAID 5 has fixed parity disks,
RAID 5 uses the XOR algorithm for parity,
RAID 5 writes data by stripes.
RAID 5 tolerates the failure of a maximum of two member disks without losing data.
Cloud computing can be used to improve reliability.
TRUE
FALSE
Which of the following allows direct physical access to end users?
Network Switch.
Storage Array.
Backup System.
Clients.
Statement 1: a snapshot of a ThinLUN at creation does not occupy storage capacity. The snapshot of a ThickLUN at creation immediately occupies storage capacity. Statement 2: When a snapshot of a ThickLUN exists, there is always space available to store changes to the original data.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
What applies to unstructured data? (Multiple Choice)
After being written, the data is not often modified.
Uncertain value.
Large capacity, rapid growth.
Long-term storage required.
Statement 1: Creating an incremental backup is faster than creating a differential backup. Statement 2: Restoring from an incremental backup is faster than from a differential backup.
Statements 1 and 2 are both true.
Statement 1 is true and statement 2 is false.
Statement 1 is false and statement 2 is true.
Both statements 1 and 2 are false.
Cloud technology refers to the process of migrating all the local servers to an external online datacenter for data protection purposes.
TRUE
FALSE
The maintenance network port is used, by the DeviceManager, for daily management.
TRUE
FALSE
Which of the following technologies are able to quickly obtain valuable information from a variety of data types in a short period of time from a collection of vast amounts of data?
Cloud.
Big Data.
Social Media.
Internet Of Things.
Which of the following statements is NOT true? (Multiple Choice)
CIFS is a network-based sharing protocol. It has high demands on network transmission reliability, so it usually uses TCP/IP.
One disadvantage of CIFS is that Windows clients must be equipped with dedicated software.
NFS is a stateless protocol while CIFS is a stateful protocol. NFS can be automatically recovered from a fault while CIFS cannot
Both the CIFS as well as the NFS protocol requires file format conversion.
SAN is a storage architecture that connects storage device and application servers through network.
TRUE
FALSE
Storage cache can optimize the speed of the storage system.
TRUE
FALSE
To enable a Windows-based host to use the resources provided by a HUAWEI OceanStor series storage device, perform the following operations: 1. Create a Disk Domain and a storage pool. 2. Create a host group and host. 3. Create a LUN group and LUN. 4. Configure an initiator on server and on storage device. 5. Connect the server to the storage device. 6. Format the logical disk. 7. Install the initiator software on server. 8. Mapping. Place the steps in the proper order.
2 -> 3 -> 1 -> 4 -> 5 -> 6 -> 7-> 8
1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8
2 -> 3 -> 1 -> 4 -> 8 -> 7 -> 5 -> 6
7 -> 5 -> 1 -> 3 -> 2 ->4 -> 8-> 6
Which of the following are attached to the storage system serially? (Multiple Choice)
ATA Drive.
SAS Drive.
NL-SAS Drive.
IDE Drive.
