Storage Concepts and Technologies

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What is a key characteristic of mapped snapshots?

Executable
Read-Only (correct)
Read-Write
Hidden

IP SANs typically utilize which type of network for connecting servers and storage systems?

Arcnet Networks
Ethernet Networks (correct)
Optical Networks
Token Ring Networks

Which of the following is the MOST accurate description of Software Defined Networking (SDN)?

The decoupling of the data plane and control plane in networks. (correct)
Using a software program to manage your network.
The virtualization of network services to achieve better efficiency and scalability
Using hardware to manage the network

Is it possible to create Storage Pools with only a single tier of disks?

False (B) Signup and view all the answers

When using RAID 2.0+ in Huawei OceanStor V3, are you required to manually designate free disks as hot spare disks?

False (A) Signup and view all the answers

Which statement accurately defines a storage array's primary function?

A system with management software that provides access to sets of hard drives or tape libraries for data access and storage. (B) Signup and view all the answers

Disk Domain A has 40 disks, and Disk Domain B has 20 disks. Is the rebuild time for a failed disk in Disk Domain B longer than that in Disk Domain A?

False (A) Signup and view all the answers

Which data protection method generally provides the best Recovery Time Objective (RTO)?

Replication (D) Signup and view all the answers

What type of deduplication and compression is adopted by OceanProtect?

Variable-length inline deduplication and compression (C) Signup and view all the answers

OceanStor Dorado NAS is well-suited for high-performance scenarios. Which of the following applications benefit most from its capabilities?

Financial data exchange platforms (B), EDA simulation (C) Signup and view all the answers

While object storage offers numerous benefits, which of the following is LEAST likely to be a primary use case?

HD editing (B) Signup and view all the answers

Which of the following statements regarding object modification is most accurate?

Objects are immutable; any modification requires creating a new object with the desired changes. (B) Signup and view all the answers

Which of the following operating systems is NOT suitable for installation directly on a server?

Win7 (B) Signup and view all the answers

Which protocols are valid for a UNIX-based NAS server?

SMB (C), NFS (D) Signup and view all the answers

A SAN connects storage devices and application servers through a network. Is this statement TRUE or FALSE?

TRUE (A) Signup and view all the answers

Which HUAWEI OceanStor V3 licensed feature dynamically relocates frequently accessed data to faster storage tiers?

SmartTier (C) Signup and view all the answers

In an ICT infrastructure, can servers run different operating systems like Windows, Linux, and AIX?

TRUE (A) Signup and view all the answers

Which statement accurately describes the relationship between disk latency and performance?

A disk drive with a low latency performs better than a disk drive with a high latency. (A) Signup and view all the answers

Match the RAID level with its corresponding characteristic: (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 -- d; 2 -- a; 3 -- c; 4 -- b (C) Signup and view all the answers

Which characteristics are typical of a Direct-Attached Storage (DAS) solution?

Consists of a server/host with its locally connected disk drives. (D) Signup and view all the answers

A storage array advertises a write cache with 64 GB of DRAM backed by a battery with a 72-hour life. The host system is configured to send all writes asynchronously, and the application writes data continuously at 100 MB/s. In the event of a power failure and with all other factors being equal, how much data is likely to be lost?

An indeterminate amount, because other factors influence the likelihood of a successful cache destage. (D) Signup and view all the answers

Which statement regarding the truthfulness of the following is accurate?

Statement 1: Port zoning is preferred for zoning an 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 is false; statement 2 is true. (A) Signup and view all the answers

What is the fundamental role of 'context' when dealing with data?

Context provides meaning to the data collected; without it, data lacks significance. (D) Signup and view all the answers

Which of the following is NOT a typical component of an IP SAN?

Fibre Channel switch (C) Signup and view all the answers

Which statement is NOT true regarding Huawei OceanStor V3 SmartTier dynamic storage tiering technology?

Data statistics, analysis, and relocation activities of SmartTier can impact service continuity and data availability. (D) Signup and view all the answers

Which component is responsible for storing data in its binary form on a hard disk?

Disk platter (A) Signup and view all the answers

What is the primary function of the actuator arm in a hard disk drive?

To position the read/write head over the correct location on the platter. (D) Signup and view all the answers

Which of the following most accurately describes the role of a NIC (Network Interface Card) in an IP SAN environment?

It provides the physical network connection for data transfer between the server and the storage. (D) Signup and view all the answers

In the context of storage solutions, what is the potential drawback of disabling SmartTier technology?

Higher overall storage costs as data is not automatically moved to the most cost-effective tier. (A) Signup and view all the answers

Consider a scenario where a database server experiences increased latency when accessing infrequently used data. Which storage technology could most effectively address this issue without requiring manual intervention?

Enabling SmartTier to dynamically relocate cold data to slower, cheaper storage. (C) Signup and view all the answers

Imagine an IP SAN environment experiencing intermittent performance bottlenecks despite adequate bandwidth. Analysis reveals high CPU utilization on the iSCSI target devices due to encryption overhead. Which of the following advanced techniques could MOST effectively mitigate this issue without a complete hardware overhaul, assuming the devices support it?

Utilizing hardware-based encryption acceleration on the iSCSI target devices. (D) Signup and view all the answers

Which component is responsible for the physical movement of the Read/Write arm in a storage device?

Actuator (D) Signup and view all the answers

Which statement accurately compares SATA and SAS technologies?

Both SATA and SAS use serial communication for data transmission. (C) Signup and view all the answers

Which of the following are key characteristics of converged storage solutions?

High performance for both SAN and NAS workloads. (A), Support for convergence across various storage system tiers and generations. (B), The provision of various SAN and NAS functions on a single device. (C) Signup and view all the answers

In comparison to HDDs, which statement accurately reflects the characteristics of SSDs?

SSDs offer superior I/O performance and lower latency. (B) Signup and view all the answers

Regarding permission management in object storage, which statement is INCORRECT?

An ACL grants blanket access to all resources within the storage system for a specified account. (B) Signup and view all the answers

Which data flow types are supported by the SmartMobility feature of OceanStor Dorado?

NAS (B), SAN (D) Signup and view all the answers

Which storage feature enables performance control for specific applications or users within a SAN environment?

Flow control management (QoS) (B) Signup and view all the answers

Which operating system from the options provided is NOT suitable for direct installation on a server?

Win7 (D) Signup and view all the answers

Which of the following protocols are valid for a UNIX-based NAS server?

NFS (A), SMB (C) Signup and view all the answers

SAN is a storage architecture that connects storage devices and application servers through a network. Is this statement TRUE or FALSE?

TRUE (B) Signup and view all the answers

Which feature in HUAWEI OceanStor V3 is described as periodically detecting hotspot data and promoting them from low-speed storage media to high-speed media?

SmartTier (A) Signup and view all the answers

In an ICT infrastructure, is it possible for servers to run different operating systems like Windows, Linux, and AIX?

TRUE (B) Signup and view all the answers

Match the RAID level with its corresponding characteristic:

1 -- d; 2 -- a; 3 -- c; 4 - b (D) Signup and view all the answers

Which of the following characteristics are typical of a Direct-Attached Storage (DAS) solution?

Consists of a server/host with its locally connected disk drives. (C) Signup and view all the answers

Under which circumstance is a rebuild on Disk Domain B likely to be slower as compared to Disk Domain A?

If Disk Domain A has 40 disks and Disk Domain B has 20 disks, the rebuild time for Disk Domain B is longer. (B) Signup and view all the answers

What is the possible size range for an extent?

512 KB to 64 MB (D) Signup and view all the answers

Regarding RAID 2.0+, which statement is accurate?

Statement 1 is false and statement 2 is true. (Statement 1: RAID 2.0+ is NOT based on traditional RAID technologies. Statement 2: RAID 2.0+ has excellent rebuild characteristics.) (C) Signup and view all the answers

Concerning MLC drives and SSD latency, which statement holds true?

Statement 1 is false; Statement 2 is true (Statement 1: MLC drives are optimal when used for high-intensity writes to that disk. Statement 2: The latency of SSD drives is about 0.1 s.) (C) Signup and view all the answers

Regarding zones within a Fibre Channel SAN, which statement is correct?

Statements 1 and 2 are true. (Statement 1: A port can be listed in multiple zones. Statement 2: A switch configuration can contain multiple zones.) (A) Signup and view all the answers

Concerning multipathing, which statement is most accurate?

Statements 1 and 2 are both true. (Statement 1: Multipathing is caused by adding redundant hardware. Statement 2: Huawei offers a different version of UltraPath for different operating systems.) (C) Signup and view all the answers

Which of the following statements accurately describe Huawei storage systems' block virtualization technology? (Select all that apply)

A CKG is the unit used in applying for space, releasing space, and relocating data. (A), Data reconstruction efficiency improves significantly. (B), Data is distributed to all disks, fully leveraging the read/write processing capability of a storage system. (D) Signup and view all the answers

Which of the following scenarios would benefit MOST from a storage solution that employs advanced Flash translation layer (FTL) algorithms?

Hosting a high-transaction, mixed read/write database with stringent latency requirements. (D) Signup and view all the answers

What is the typical impact of using replication on Recovery Time Objective (RTO)?

Replication generally provides the best, or shortest, RTO. (C) Signup and view all the answers

Which deduplication and compression method is employed by Huawei OceanProtect?

Variable-length inline deduplication and compression (D) Signup and view all the answers

In which scenarios is OceanStor Dorado NAS particularly well-suited?

Both B and C (B) Signup and view all the answers

Which are supported container plug-ins for new-gen OceanStor hybrid flash storage?

Both A and D (C) Signup and view all the answers

Which of the following is LEAST likely to be a typical use case for object storage?

HD video editing (C) Signup and view all the answers

Is direct access to object storage possible without third-party software or tools?

TRUE (A) Signup and view all the answers

Can individual content segments within an object be directly edited and saved back as the original object?

FALSE (A) Signup and view all the answers

Which architecture unifies SAN and NAS in OceanStor Dorado?

Unified Storage Architecture (A) Signup and view all the answers

What is the major advantage of the deduplication process?

Reducing storage consumption (C) Signup and view all the answers

An IT architect is designing a backup and recovery solution. They need to minimize downtime and data loss in case of a primary site failure. Given these priorities and budget constraints, which approach is MOST suitable?

Synchronous replication to a secondary site, combined with continuous data protection (CDP). (C) Signup and view all the answers

Which of the following is NOT a characteristic of SmartTier technology in Huawei OceanStor V3?

It requires manual initiation and constant monitoring to ensure optimal performance. (D) Signup and view all the answers

Which of the following components is responsible for storing data in binary form on a hard disk?

Disk platter (D) Signup and view all the answers

In the context of data management, what is the primary benefit of providing context to raw data?

It transforms data into meaningful information. (C) Signup and view all the answers

Which of the following storage networking components is NOT typically found in an IP SAN?

Fibre Channel switch (C) Signup and view all the answers

Concerning Fibre Channel (FC) switch zoning, which statement is accurate?

Port zoning is recommended when security is paramount and changes are infrequent. (A) Signup and view all the answers

Which statement accurately describes the impact of SmartTier data relocation activities on service continuity and data availability?

Data statistics, analysis, and relocation activities of the SmartTier affect service continuity and data availability. (C) Signup and view all the answers

Which of the following scenarios highlights a potential drawback of failing to provide adequate context when analyzing customer purchase data?

Inability to identify seasonal purchasing trends, leading to inaccurate inventory forecasts. (D) Signup and view all the answers

Consider a scenario where an IP SAN environment exhibits significant latency issues, and initial diagnostics point towards excessive network congestion. Prior to a costly hardware upgrade, which advanced software-defined networking (SDN) technique could BEST be implemented to alleviate the bottleneck?

Implementing QoS (Quality of Service) policies to prioritize iSCSI traffic. (B) Signup and view all the answers

Which of the following is the MOST critical consideration when implementing port zoning in a large-scale Fibre Channel SAN environment with frequent server and storage additions or changes?

The ease of managing and updating zone configurations to reflect the dynamic infrastructure. (D) Signup and view all the answers

Imagine a scenario where an organization's storage infrastructure is comprised of both high-performance SSDs and cost-effective HDDs, managed by Huawei's SmartTier technology. A critical database application exhibits unpredictable performance spikes that correlate with periods of high I/O activity. To optimize resource utilization and ensure consistent low-latency access for the database, which configuration strategy would be the MOST effective?

Configuring SmartTier with aggressive data promotion policies to prioritize database I/O on the SSD tier. (C) Signup and view all the answers

Which computing approach leverages numerous processors working simultaneously to solve complex problems?

Massively Parallel Processing (MPP) (B) Signup and view all the answers

What is a primary characteristic that differentiates Solid State Drives (SSDs) from mechanical drives like SAS?

SSDs lack mechanical parts, leading to faster data access times. (A) Signup and view all the answers

When SmartTier is enabled, what condition prevents data movement between storage tiers?

A data migration plan has not been configured or scheduled. (A) Signup and view all the answers

Which technology is designed to rapidly analyze diverse data types from massive datasets to extract valuable insights?

Big Data Analytics (C) Signup and view all the answers

According to the evolution of ICT in the new industrial revolution, which of the following statements are accurate reflections of its trends? (Select two)

ICT's focus has shifted from initial office automation to transforming core business processes. (A), ICT has evolved into a cornerstone of modern production systems and automation. (B) Signup and view all the answers

Evaluate the following statements regarding fiber optic cables: Statement 1: Multimode fiber optic cables typically support longer transmission distances compared to single-mode cables. Statement 2: Sharp bends in fiber optic cables can lead to signal degradation and loss.

Statement 1 is false, and Statement 2 is true. (B) Signup and view all the answers

Within a storage system's architecture, what are the valid ranges for the size of an extent?

An extent's size can range from 64 MB to 512 MB. (D) Signup and view all the answers

After a snapshot rollback, what happens to snapshots created after the target snapshot's creation time?

They are automatically deleted. (D) Signup and view all the answers

Which of the following has the greatest impact on the completion time of a random access I/O operation on a mechanical hard disk?

Rotational latency (C) Signup and view all the answers

Which statement accurately compares the HyperMirror and HyperClone features regarding service interruption upon primary LUN failure and the supported number of secondary LUNs?

HyperMirror: no interruption, supports dual copy; HyperClone: interruption, supports 1 primary: 8 secondary. (B) Signup and view all the answers

A data center experiences one hour of downtime in a year. What is the calculated High Availability (HA) of this data center?

0.9998858 (A) Signup and view all the answers

Which of these would have the great impact if the business needs to maintain the data?

Checking the room environment. (A) Signup and view all the answers

Of the following operating systems, which one is NOT typically suited for direct installation on a server?

Win7 (A) Signup and view all the answers

Which protocols are valid for a UNIX-based NAS server? (Select all that apply.)

SMB (A), NFS (C) Signup and view all the answers

SAN is a storage architecture that connects storage devices and application servers through a network. TRUE or FALSE?

TRUE (A) Signup and view all the answers

In HUAWEI OceanStor V3, which licensed feature periodically detects hotspot data and promotes them from low-speed storage media to high-speed media?

SmartTier (D) Signup and view all the answers

Statement 1: A disk drive with a high latency performs better than a disk drive with a low latency. Statement 2: A smaller seek time means that the disk performs better.

Statement 1 is false; Statement 2 is true. (B) Signup and view all the answers

Match the RAID level with its corresponding characteristic: (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 -- d; 2 -- a; 3 -- c; 4 -- b (B) Signup and view all the answers

Which characteristics are typical of a Direct-Attached Storage (DAS) solution? (Choose all that apply.)

Consists of a server/host with its locally connected disk drives. (C) Signup and view all the answers

An organization is consolidating its storage infrastructure, aiming to maximize both performance and efficiency for a mix of transactional databases and large media archives. They implement a hybrid storage array with automated tiering. However, during peak usage, some critical database operations experience unpredictable latency spikes. Which advanced diagnostic and optimization strategy would MOST effectively address the root cause of these latency spikes without requiring immediate hardware upgrades?

Employ advanced analytics and machine learning algorithms to dynamically adjust tiering policies in real-time, proactively migrating hot database blocks to the fastest storage tier based on predicted access patterns. (B) Signup and view all the answers

Which statement regarding modifying content in object storage is most accurate?

Direct modification of content segments within an object is not supported; the entire object must be overwritten. (D) Signup and view all the answers

Which of the following is the MOST accurate description of the Recovery Time Objective (RTO)?

The maximum acceptable length of time that an application can be down after a failure. (A) Signup and view all the answers

Which of the following deduplication and compression methods is employed by Huawei OceanProtect?

Variable-length inline deduplication and compression (C) Signup and view all the answers

OceanStor Dorado NAS is well-suited for high-performance scenarios. Which of the following applications benefits most from its capabilities? (Select two)

EDA simulation (C), Financial data exchange platforms (D) Signup and view all the answers

Which two container plug-ins are supported by the new-generation OceanStor hybrid flash storage?

CSI (B), ECS (D) Signup and view all the answers

A storage administrator is considering different data protection strategies. Which of the following provides the lowest Recovery Time Objective (RTO) and Recovery Point Objective (RPO), but typically comes at the highest cost?

Near-synchronous replication to a geographically close data center. (D) Signup and view all the answers

Which of the following is NOT a valid attribute of object storage?

Objects are stored in a hierarchical file system. (B) Signup and view all the answers

In the context of data analysis, what is the PRIMARY role of 'context'?

To provide meaning and relevance to raw data. (D) Signup and view all the answers

Which of the following is LEAST likely to be a standard component within an IP SAN infrastructure?

Fibre Channel switches. (A) Signup and view all the answers

Which of these statements about Huawei OceanStor V3 SmartTier technology is FALSE?

SmartTier's operations, including data relocation, can negatively impact service continuity. (D) Signup and view all the answers

Regarding Fibre Channel (FC) switch zoning, which statement is correct?

Alias zoning simplifies management compared to soft zoning. (B) Signup and view all the answers

Which component within a hard disk drive is directly responsible for storing data in a binary format?

The disk platter. (D) Signup and view all the answers

Which of the following design considerations would MOST mitigate the risk of data unavailability during SmartTier operations in a Huawei OceanStor V3 system?

Ensuring sufficient redundancy and mirroring at each storage tier. (C) Signup and view all the answers

What is the potential result of misinterpreting customer purchase data due to a failure to capture contextual information such as promotional events?

Inaccurate capacity planning and resource provisioning. (D) Signup and view all the answers

In an IP SAN environment experiencing performance degradation due to network congestion, which advanced SDN technique offers the MOST targeted approach to alleviate bottlenecks without requiring immediate hardware upgrades?

Prioritizing iSCSI traffic using Quality of Service (QoS) based on application requirements. (B) Signup and view all the answers

In a large Fibre Channel SAN with frequent changes, what is the MOST critical consideration when implementing port zoning?

Automating zone configuration and updates to minimize manual errors. (C) Signup and view all the answers

An organization employs Huawei SmartTier with SSDs and HDDs. A database shows performance spikes during high I/O. Which configuration would MOST effectively optimize access?

Allowing SmartTier to dynamically relocate frequently accessed database components to the SSD tier. (A) Signup and view all the answers

Read-Only Mapped Snapshots

Snapshots that cannot be written to.

IP SAN and Optical Networks

IP SANs use IP networks, not optical networks, to connect servers and storage.