H13-611 HCIA-Storage V4.5 Questions and Answers

ATA Drive.

SAS Drive.

NL-SAS Drive.

IDE Drive.

TRUE

FALSE

TRUE

FALSE

Description 1 is correct, description 2 is correct

Description 1 is correct, description 2 is incorrect

Description 1 is wrong, description 2 is correct

Description 1 error, description 2 error

Data is a record that reflects the attributes of objective things and a specific form of information

Data refers to information that can be stored and transmitted

Information is data that has been processed to meet the needs of user decisions

Data is the sum of information and data redundancy

In the traditional mode, the data center relies on component redundancy to achieve high reliability

In the cloud computing mode, the data center relies on component redundancy to achieve high reliability

In the traditional model, cross-data center disaster recovery is mainly based on copying business data, and the recovery process is complicated and the recovery period is long

In the cloud computing mode, cross-data center disaster recovery is the replication of all data in the business data and operating environment.

Simple recovery process and short recovery period

TRUE

FALSE

NAS file systems include CIFS and NFS.

NAS file systems allow multiple servers running different operating systems to share files stored on public storage media.

CIFS provides a way for NAS storage devices to share files in the UNIX environment.

NFS provides a way for NAS storage devices to share files in the Linux environment.

Win7

Solaris

FreeBSD

AIX

OceanStor V3 series products support 8 controllers, and the switching plane between the controllers is IP-based Scale-out interconnection

When the control frame of OCeanStor 5300 V3 is expanded from 2 to 4 controls, it can be directly connected or

Networking with switches

In the OceanStor V3 series of new-generation storage products, the back-end loops of the same SAS interface card can be mixed and connected

Ordinary disk enclosure and high-density disk enclosure

OceanStor V3 mid-range storage arrays use IP switches for interconnection, which has cost advantages. PCIe switches are dedicated

Switching, the cost is relatively high, mainly used in high-end storage

Maintenance.

Transmission.

Generation.

Usage.

Instruction flows are transmitted over the LAN whereas data flows are not.

The backup agent affects the performance of application servers.

Backup data is based on LANs, affecting network performance.

Backup jobs must be separately maintained, complicating management and maintenance.

TRUE

FALSE

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 presence of mechanical parts.

The performance of the hard drive.

The capacity of hard drive.

The lifespan of hard drive.

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.

users can self-service on demand

The resource pool used by the user has nothing to do with the exact geographic location of the resource pool

It can quickly and flexibly provide users with capabilities, such as computing power and storage capacity.

Charge based on the actual usage of the user

Host.

Network.

Storage Array.

Switch.

FALSE

TRUE

TRUE

FALSE

Description 1 is correct, description 2 is incorrect

Description 1 error, description 2 error

Description 1 is correct, description 2 is correct

Description 1 is wrong, description 2 is correct

TRUE

FALSE

File system->Application system->Volume->I/O subsystem->RAID controller->Disk

Application System->File System->Volume->I/O Subsystem->RAID Controller->Disk

Application system->File system->I/O subsystem->Volume->RAID controller->Disk

D、Application system->File system->Volume->RAID controller->I/O subsystem->Disk

Cost of Downtime.

Retention period.

Application that uses the data.

Backup type (full, incremental, differential).

TRUE

FALSE

Virtual snapshot is based on the pointers specified in a mapping table.

A snapshot LUN cannot be mapped to hosts,

A full data replication is unnecessary.

Data is located using a mapping table.

Disks are striped for storing data blocks, shortening the mechanical seek time and accelerating data access.

Several disks in an array are accessed simultaneously (parallel access), shortening the mechanical seek time and accelerating data access.

Current RAID technology only uses the parity check mechanism to protect data.

Performance of all RAID levels increases with the number of member disks.

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.

TRU

FALSE

TRUE

FALSE

Disk

Disk array

Disk cabinet

Tape library

TRUE

FALSE

Write once, modify many times

The value of data is uncertain

Large capacity and fast growth rate

Long storage time

The same device is able to provide both block storage and file storage.

Saving of rack space due to integration of equipment into one device.

Converged storage system has better data protection compared to other non-converged systems.

Unified management of storage resources.

Use NIC instead of HBA cards to minimize the host resource consumption during I/O operations.

Offload the storage processing tasks to the server to optimize the data deduplication.

Usage of TCP/IP offload engine technology to do processing on HBA cards on the server to minimize the usage of server resources.

Adding hardware acceleration module to the storage system to optimize the performance of data deduplication.

CIFS

NFS

SMB

Novell Control Protocol

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.

description 1 and description 2 are correct

Description 1 pair, description 2 wrong

description 1 wrong, description 2 right

description 1 and description 2 are wrong

Cloud data center

Enterprise data center

Carrier data center

Internet Data Center

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

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.

right

FALSE

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.

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.

No high-speed rotating parts, high performance

Support TCQ/NCQ, corresponding to multiple IO requests

SSD disk at a time is more suitable for use in scenarios that require large storage capacity

SSD can be used in some harsh environments, such as high temperature and humidity, strong earthquakes and other harsh environments.

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.

TRUE

FALSE

Application space

Free up space

Statistics

Data migration

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.

When the device is powered off, the safe disk stores the data in the cache to prevent data loss

When an unexpected power failure occurs, the BBU supplies power to the cache and safe disk

Safe disk cannot be used to store user data

Only the first two disks in the controller cabinet are used for safe disks

Perform exercises in accordance with the actual disaster recovery steps

Familiarize yourself with the disaster recovery process through disaster recovery, and exercise business recovery capabilities for disaster

Through disaster recovery exercises, the integrity of the business cannot be checked

Disaster recovery exercises are verification and the most effective means to prove system availability

TRUE

FALSE

Data sharing

Storage sharing

Data backup

Disaster recovery

Statement 1 and 2 are true.

Statement 1 is false; Statement 2 is true.

Statement 1 is true; Statement 2 is false.

Statement 1 and 2 are false.

Disc

Read/write head

Magnetic head arm

Spindle

TRUE

FALSE

Cable length is around 10 m.

Block size is configurable.

CIFS and NFS are both commonly used protocols.

NAS clients are connected to the NAS server using Ethernet switches.

Mirroring of two LUNs in this array

Cooperate with the heterogeneous virtualization function to realize the mirroring of the LUN of the heterogeneous array and the array

Cooperate with the heterogeneous virtualization function to realize the mirroring of two heterogeneous LUNs

The mirrors of the two LUNs of the volume mirror are not under the same home controller

Larger capacity

Faster read/write speed for random access

Better environmental adaptability

Longer service life

SCSI Link Layer.

SCSI Network Layer.

SCSI Middle Layer.

SCSI Device Driver Layer.

Query the CIFS share first, if there is no matching share information, then query the Homedir share

Query CIFS share, if there is no query, it will return failure

Query Homedir share first, if there is no matching share information, then query CIFS share

Query Homedir share, if there is no query, it returns failure

When an employee goes against the company's ICY code of practice e.g. leaving workstation logged on.

A piece of malicious code that is written by programmers and is used to corrupt data and systems.

When individuals or organizations break the law through using computers illegally access a computer system.

Misuse of information provided by ICT systems for personal or malicious intentions.

The presence of mechanical parts.

The performance of the hard drive.

The capacity of hard drive.

The lifespan of hard drive.

Creating a Storage pool -> Creating a LUN -> Adding a mapping.

Creating a Storage pool -> Adding a mapping -> Creating a LUN.

Creating a LUN -> Creating a Storage pool -> Adding a mapping.

Creating a LUN -> Adding a mapping -> Creating a Storage pool.

Description 1 is correct, description 2 is correct

Description 1 is wrong, description 2 is correct

Description 1 error, description 2 error

Description 1 is correct, description 2 is incorrect

Software

Hosts and Servers

Backup Devices

Network switches

TRUE

FALSE