Huawei H13-611 Practice Test Questions, Exam Dumps

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H13-611 Huawei Practice Test Questions and Exam Dumps

Question 1

Which of the following are the 3 layers of components that storage systems are made up of? (Choose three.)

A. Storage Analysis
B. Storage Solution
C. Storage Software
D. Storage Hardware

Answer: C, D, B

Explanation:

Storage systems are typically broken down into different layers to manage the data lifecycle efficiently and ensure the storage infrastructure operates seamlessly. These layers include both physical and software components, and they provide a comprehensive approach to how storage is provisioned, managed, and utilized in any IT environment.

The correct layers are:

C. Storage Software
Storage software refers to the software layer that manages and orchestrates the data storage process. This includes tools for data management, virtualization, backup, and security. It also provides access control, data optimization, and fault tolerance for the underlying hardware. Software-defined storage (SDS) is an example, where software takes over the management of storage resources independent of the underlying physical hardware.
D. Storage Hardware
Storage hardware represents the physical components used to store data. This includes hard drives (HDDs), solid-state drives (SSDs), storage arrays, and network storage devices like NAS (Network Attached Storage) and SAN (Storage Area Networks). The physical layer is the foundation for all data storage solutions and is responsible for the persistent storage of data.
B. Storage Solution
A storage solution refers to the overall combination of hardware and software that makes up the storage system. This could be an enterprise-level system or a more simplified personal storage solution, and it includes considerations for scalability, performance, and availability. A storage solution can involve both the hardware layer (e.g., physical disks) and the software layer (e.g., storage management tools, data backup utilities).

Now, let’s look at the incorrect option:

A. Storage Analysis
Storage analysis is not considered a core layer in the architecture of a storage system. While storage analysis tools do play an important role in optimizing and monitoring storage usage (such as analyzing performance, capacity, and health), they are not a foundational layer in the storage system itself. Instead, storage analysis tools sit on top of the system to help with management, decision-making, and monitoring.

The three core layers of a storage system are Storage Software, Storage Hardware, and Storage Solution. These components combine to deliver a fully functional and efficient storage infrastructure. Therefore, the correct answer is C, D, and B.

Question 2

Which of the following is not a benefit of converged storage systems?

A. The same device is able to provide both block storage and file storage.
B. Saving of rack space due to integration of equipment into one device.
C. Converged storage system has better data protection compared to other non-converged systems.
D. Unified management of storage resources.

Answer: C

Explanation:

Converged storage systems combine compute, storage, and networking components into a single infrastructure, offering several advantages over traditional, siloed IT systems. These systems are designed to be more efficient and easier to manage, integrating multiple storage capabilities into one device or system. Let's examine the benefits associated with converged storage systems:

A. The same device is able to provide both block storage and file storage.
This is true for converged storage systems. These systems typically offer unified storage, which means they can deliver both block-level storage (used by databases and applications) and file-level storage (used by shared filesystems). By integrating both storage types into the same device, users can simplify the management of diverse storage needs.
B. Saving of rack space due to integration of equipment into one device.
Converged storage systems indeed provide significant space savings by integrating various components such as storage, compute, and networking into a single device or system. This integration reduces the need for separate pieces of hardware and can result in fewer rack units being required, thus saving physical space.
C. Converged storage system has better data protection compared to other non-converged systems.
This is not necessarily true. While converged systems might offer improved manageability and efficiency, better data protection is not an inherent benefit of converged storage systems. Data protection in converged systems depends largely on the specific technologies and architectures employed, such as RAID configurations, snapshots, or backup solutions, and not all converged systems have superior data protection compared to non-converged systems. Non-converged systems can also have robust data protection mechanisms in place, depending on how they are designed and managed.
D. Unified management of storage resources.
One of the primary benefits of converged storage systems is unified management, where all storage resources (whether block or file storage) can be managed through a single interface. This central management console simplifies administration, monitoring, and reporting, leading to reduced operational complexity.

The benefit of better data protection is not inherently tied to converged storage systems. While these systems provide efficiency, space savings, and unified management, data protection capabilities depend on the specific implementations and technologies used, not the convergence itself. Therefore, the correct answer is C.

Question 3

Which of the following dimensions are often used to express the data used in Big Data scenarios? (Choose all that apply.)

A. Variety
B. Velocity
C. Verticality
D. Volume

Answer: A, B, D

Explanation:

In Big Data scenarios, data is typically characterized by several key dimensions known as the Three Vs. These dimensions help define the nature of data and its management in large-scale environments. Let’s break down each option:

A. Variety
Variety refers to the different types of data that are generated and processed in Big Data scenarios. Data can come in various forms, including structured data (such as tables and databases), semi-structured data (like JSON or XML files), and unstructured data (such as videos, images, or social media posts). The diversity in data types and formats is one of the core characteristics of Big Data. Hence, Variety is one of the important dimensions used in Big Data.
B. Velocity
Velocity refers to the speed at which data is generated, processed, and analyzed. In Big Data environments, data can be produced at high rates, such as in real-time analytics or continuous streams (e.g., sensor data, social media posts, and online transactions). Managing this high speed of data flow is critical in Big Data applications, making Velocity another important dimension.
C. Verticality
Verticality is not typically considered a dimension in Big Data contexts. This term may refer to certain organizational structures or industry-specific approaches, but it is not part of the widely recognized dimensions used to describe Big Data. The commonly used dimensions are Variety, Velocity, and Volume, so Verticality does not apply in this context.
D. Volume
Volume refers to the sheer amount of data that is generated and processed in Big Data environments. Big Data is characterized by massive volumes of data, often measured in petabytes or even exabytes. The ability to store, manage, and analyze such large amounts of data is a fundamental aspect of Big Data, making Volume one of the most important dimensions.

In Big Data, the key dimensions used to express the data are Variety, Velocity, and Volume. These three dimensions help define the complexities and challenges of working with large-scale, diverse, and fast-moving data. Therefore, the correct answers are A, B, and D.

Question 4

The only cable type that can be used to connect disk enclosures is the mini SAS cable.

A. FALSE
B. TRUE

Answer: A

Explanation:

The statement that "the only cable type that can be used to connect disk enclosures is the mini SAS cable" is false. While mini SAS (Serial Attached SCSI) cables are commonly used to connect disk enclosures, they are not the only cable type that can be used. There are other types of connections and cables that can be used depending on the storage architecture and technology, including:

SATA (Serial ATA) cables: SATA is another widely used interface for connecting hard drives and disk enclosures. SATA cables are commonly used in consumer-grade storage solutions and are compatible with many disk enclosures, especially for internal drives in servers or NAS devices.
Fibre Channel cables: For high-performance and high-throughput storage environments, Fibre Channel connections are often used to connect disk enclosures to storage networks, particularly in Storage Area Networks (SANs). These cables are designed for enterprise-level storage systems and are optimized for low-latency, high-bandwidth requirements.
iSCSI (Internet Small Computer System Interface): iSCSI uses Ethernet cables to connect storage devices over IP networks, allowing disk enclosures to be connected across a network rather than directly through dedicated storage protocols like SAS.
Thunderbolt cables: In some high-performance external storage solutions, particularly for workstations and consumer-grade devices, Thunderbolt cables can be used to connect disk enclosures for fast data transfer.

While mini SAS cables are highly prevalent in many enterprise storage setups due to their high-speed performance and reliability, they are not the only cable option available for connecting disk enclosures. There are several alternatives depending on the specific use case and the required performance.

The claim that mini SAS cables are the only cable type used to connect disk enclosures is incorrect. Multiple cable types can be used depending on the storage configuration, such as SATA, Fibre Channel, and iSCSI. Therefore, the correct answer is A (FALSE).

Question 5

Based on common ICT architecture, what effect does network latency have on the performance of networks?

A. Low latency will cause network performance to drop.
B. Higher latency has better network performance.
C. Higher latency allows more data to be transmitted.
D. Low latency allows quicker data transmission in networks.

Answer: D

Explanation:

In the context of ICT (Information and Communication Technology) architecture, network latency refers to the time delay that occurs when data is transmitted over a network. Specifically, it is the time it takes for a packet of data to travel from the source to the destination. This delay is measured in milliseconds (ms) and can be affected by several factors, including the distance between the sender and receiver, the speed of the network, the processing time in routers or switches, and congestion in the network.

A. Low latency will cause network performance to drop.
This is incorrect. Low latency means faster transmission of data. In fact, low latency improves network performance by minimizing the delay between sending and receiving data, which is crucial for real-time applications like video conferencing, online gaming, and financial transactions. Therefore, low latency generally improves network performance, not causes it to drop.
B. Higher latency has better network performance.
This is incorrect. Higher latency is typically associated with worse network performance, not better. When latency is high, there is a delay in data transmission, which can result in slower speeds and poor user experience, especially for time-sensitive applications. Higher latency can cause delays in video streaming, slow website loading times, and lag in online games.
C. Higher latency allows more data to be transmitted.
This is incorrect. Higher latency does not directly correlate to the ability to transmit more data. In fact, high latency can reduce the efficiency of data transmission, as it increases the time it takes for data to travel between endpoints. Networks with high latency may experience reduced throughput because the time to send and receive data packets is longer, even if the network has the capacity for more data transfer.
D. Low latency allows quicker data transmission in networks.
This is correct. Low latency means that data can be transmitted quickly because the time delay between sending and receiving the data is minimized. This is essential for applications that require real-time data transmission, such as video calls, live streaming, and online gaming. Low latency helps in improving the responsiveness of these services and enables faster communication over networks.

The effect of low latency on network performance is positive, as it allows data to be transmitted more quickly and efficiently. Higher latency generally leads to slower data transmission and degraded performance. Therefore, the correct answer is D (Low latency allows quicker data transmission in networks).

Question 6

In HUAWEI OceanStor V3, which of the following statements about mapping a snapshot is true?

A. Snapshots optionally can be mapped to multiple hosts.
B. All of the answers are true.
C. Snapshots can only be mapped to the same host the original LUN was mapped to.
D. Mapped snapshots are always Read-Only

Answer: A

Explanation:

In the context of HUAWEI OceanStor V3 storage systems, snapshots are used to create point-in-time copies of data, which can be mapped to hosts for various purposes, such as backup, testing, or recovery. Understanding the behavior of snapshots and how they can be mapped is crucial to effectively using these features. Let’s examine each option:

A. Snapshots optionally can be mapped to multiple hosts.
This statement is true. In HUAWEI OceanStor V3, snapshots can be mapped to multiple hosts, and this is an option that enhances flexibility. By mapping snapshots to different hosts, you can use them for various purposes such as testing, recovery, or backup across different systems. This feature allows for non-disruptive testing and recovery, providing more versatility in managing snapshots.
B. All of the answers are true.
This is incorrect because not all of the individual statements are correct. Specifically, option C is incorrect, so this choice is not valid. We will discuss the other options below.
C. Snapshots can only be mapped to the same host the original LUN was mapped to.
This is false. In HUAWEI OceanStor V3, snapshots do not have to be mapped to the same host as the original Logical Unit Number (LUN). As mentioned in option A, snapshots can be mapped to multiple hosts or even different hosts than the original LUN. This flexibility allows users to map snapshots to a range of hosts for different purposes.
D. Mapped snapshots are always Read-Only.
This is false. When a snapshot is mapped to a host in HUAWEI OceanStor V3, it is not always read-only. While snapshots are often used in a read-only mode for backup and recovery purposes, there are situations where the snapshot can be writable if it is used as a base for further modifications or as part of a clone process. Therefore, snapshots do not always have to be read-only, making this statement inaccurate.

The correct answer is A because snapshots can indeed be mapped to multiple hosts, providing flexibility in their use. Options C and D are incorrect because snapshots can be mapped to different hosts than the original LUN and are not always read-only. Therefore, the correct choice is A.

Question 7

IP SAN uses underlying optical networks to connect servers and storage systems.

A. TRUE
B. FALSE

Answer: B

Explanation:

An IP SAN (Internet Protocol Storage Area Network) is a storage network that uses standard IP (Internet Protocol) for communication between servers and storage devices. While IP SANs can utilize a variety of network infrastructure, they do not specifically rely on optical networks for their functionality.

Let’s break this down:

IP SAN operates over standard IP networks, which are typically based on Ethernet technology. The data is transferred via IP protocols using standard Ethernet cables, switches, and routers. The focus is on leveraging IP for storage communication, making it more flexible and cost-effective than traditional Fibre Channel SANs.
Optical networks often refer to networks using fiber optic cables for high-speed, long-distance data transmission. While optical networks are used in some high-performance storage environments, particularly with Fibre Channel SANs, they are not a requirement for IP SANs. IP SANs can run over regular Ethernet networks, which do not necessarily require optical infrastructure.
Fibre Channel SANs, in contrast, are often built on fiber optic networks for high-speed, low-latency data transmission, but this is different from the IP SAN architecture, which uses IP protocols.

IP SANs use IP-based networks (typically Ethernet), not specifically optical networks. While optical networks can be part of some storage solutions (such as Fibre Channel SANs), they are not a fundamental requirement for IP SANs. Therefore, the correct answer is B (FALSE).

Question 8

Which of the following best describes SDN?

A. Decoupling of the data plane and control plane in networks.
B. Using a software program to manage your network.
C. Using hardware to manage the network.
D. The virtualization of network services to achieve better efficiency and scalability.

Answer: A

Explanation:

Software-Defined Networking (SDN) is a network architecture that enables centralized control and flexible management of a network. Let’s break down the options to understand why A is the most accurate description of SDN:

A. Decoupling of the data plane and control plane in networks.
This is the correct answer. One of the defining characteristics of SDN is the decoupling of the data plane (which handles the forwarding of network traffic) from the control plane (which makes decisions about how traffic should flow). In SDN, the control plane is centralized, often controlled by a software-based SDN controller, while the data plane remains distributed on network devices like switches and routers. This separation allows for more flexible network management, enabling easier network configuration, automation, and centralized control.
B. Using a software program to manage your network.
While this statement is partially true (since SDN does involve software programs), it is too vague and doesn’t fully capture the essence of SDN. Simply using software to manage a network does not inherently mean the network is software-defined or exhibits the key principles of SDN, such as decoupling the data and control planes or enabling centralized, dynamic control.
C. Using hardware to manage the network.
This is incorrect. SDN primarily focuses on using software-based management and control rather than relying heavily on hardware for network management. While SDN may involve specialized hardware (like SDN-capable switches), the emphasis is on software-driven control of network traffic and resources, rather than hardware-based control.
D. The virtualization of network services to achieve better efficiency and scalability.
While SDN can indeed help achieve better efficiency and scalability, this statement describes more about network function virtualization (NFV) rather than SDN itself. NFV focuses on virtualizing network functions (such as firewalls or load balancers) and abstracting them from physical hardware. SDN, on the other hand, is specifically about network control and the separation of control and data planes.

The most accurate description of Software-Defined Networking (SDN) is A—the decoupling of the data plane and control plane—which enables centralized control and greater flexibility in managing the network. Therefore, the correct answer is A.

Question 9

Storage Pools cannot be created with a single tier of disks.

A. FALSE
B. TRUE

Answer: A

Explanation:

A Storage Pool is a logical collection of physical disks in a storage system that are grouped together to provide storage capacity and performance. These pools allow the system to manage and allocate storage resources effectively.

The concept of tiers within a storage pool refers to the grouping of disks with different performance characteristics. For example, higher-performance disks (e.g., SSDs) might be grouped together in one tier, while lower-performance disks (e.g., HDDs) might be placed in another tier. This allows administrators to take advantage of tiered storage to optimize performance and cost.

However, Storage Pools can be created with a single tier of disks, especially when all the disks in the pool are of the same type and performance level. For example, if all disks in the pool are SSDs or all are HDDs, there is no need for multiple tiers because all disks would provide similar performance characteristics. In this case, the storage pool is simply a collection of similar disks with no differentiation based on performance.

A. FALSE
This is correct. A storage pool can be created with a single tier of disks, and this is often done when all the disks in the pool are of the same type and performance level. For example, a pool can consist entirely of SSD disks or entirely of HDD disks. In this case, no multiple performance tiers are needed, and the pool can still function efficiently.
B. TRUE
This is incorrect because it is not true that storage pools cannot be created with a single tier of disks. In fact, storage pools can indeed be created with just one tier of disks if they are of the same type and performance level.

It is entirely possible to create a storage pool with a single tier of disks, and it is common in environments where all disks in the pool have similar performance characteristics.

Question 10

You need to manually set free disks as hot spare disks in a Huawei OceanStor V3 storage system when you use RAID 2.0+.

A. FALSE
B. TRUE

Answer: A

Explanation:

In a Huawei OceanStor V3 storage system, RAID 2.0+ is an advanced RAID technology that includes features like automatic disk reconstruction and enhanced data protection. One of the key benefits of RAID 2.0+ is its ability to automatically manage hot spare disks without requiring manual intervention.

Hot spare disks are standby disks that are automatically activated to replace a failed disk in a RAID array. In earlier versions of RAID technology, it was common to manually assign free disks as hot spares. However, with RAID 2.0+, this process is largely automated. When a disk fails in a RAID array, the system will automatically assign an available free disk as a hot spare and initiate the reconstruction process without needing manual configuration.

This automation helps improve the overall efficiency of storage management, as administrators do not need to manually intervene to configure hot spare disks whenever a disk failure occurs.

A. FALSE
This is correct. With RAID 2.0+, you do not need to manually set free disks as hot spare disks. The system automatically assigns available disks as hot spares when needed, eliminating the need for manual configuration in most cases.
B. TRUE
This is incorrect. In RAID 2.0+, the system is designed to automatically manage hot spare disks, so manual intervention is not required to assign them.

In a Huawei OceanStor V3 storage system using RAID 2.0+, free disks do not need to be manually set as hot spares. The system will automatically handle this process.