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突破上級者がシミュレーションされたD-ISM-FN-23試験問題集PDF
質問 # 40
Which process eliminates data redundancy in a data set?
- A. Data replication
- B. Data archiving
- C. Data deduplication
- D. Data migration
正解：C
質問 # 41
Refer to the exhibit.
What type of Fibre Channel port does the "X" represent?
- A. N_port
- B. E_port
- C. F_port
- D. NL_port
正解：B
解説：
In Fibre Channel networks, an E_port (Expansion port) is used to connect two FC switches. The "X" in the exhibit indicates a connection between two FC switches, representing an E_port, which allows the creation of larger fabrics by linking multiple switches.
References: Dell EMC ISM V5 Module 4, "Fibre Channel SAN," details the different types of FC ports and their functions.
質問 # 42
Which file system provides a streaming interface using the MapReduce framework?
- A. NTFS
- B. NFS
- C. CIFS
- D. HDFS
正解：D
解説：
HDFS (Hadoop Distributed File System) is a file system that provides a streaming interface using the MapReduce framework. HDFS is designed to store large volumes of data across many machines and provides high-throughput access to this data. The MapReduce framework allows for processing and generating large datasets with a distributed algorithm on a cluster. HDFS's architecture is optimized for handling large files and supports operations such as writing data once and reading many times, making it ideal for big data analytics and processing tasks.
References: Dell Information Storage and Management V5 course material -Dell Education
質問 # 43
Refer to the Exhibit:
What type of data protection is represented?
- A. Backup
- B. Migration
- C. Deduplication
- D. Archiving
正解：A
質問 # 44
An IT organization wants to deploy four FC switches for compute and storage system connectivity. To meet performance requirements, a maximum of one active ISL and redundant ISLs for their compute to storage traffic.
Which FC SAN topology should be recommended?
- A. Multi-switch
- B. Partial mesh
- C. Single switch
- D. Full mesh
正解：D
解説：
In a full mesh topology, every switch is connected to every other switch, providing multiple paths for redundancy and performance. This setup is ideal for meeting performance requirements and ensuring that there is always a path available even if one link fails, fulfilling the need for redundant ISLs.
References:
* Dell EMC Information Storage and Management V5 course material, Module on Fibre Channel SAN.
質問 # 45
What is a feature a hypervisor?
- A. Provides a VMM that manages all VMS on a single compute system
- B. Isolates the physical resources of a single compute system
- C. Provides a VMM that manages all VMS on a clustered compute system
- D. Isolates the VMS on a single compute system
正解：A
解説：
A hypervisor is a layer of software that runs directly on top of a physical server and provides a virtualization layer. It allows multiple virtual machines (VMs) to run on the same physical hardware, sharing the underlying resources such as CPU, memory, and storage. The hypervisor isolates the VMs from each other and provides a virtual machine monitor (VMM) that manages the virtual machines' access to physical resources. The VMM is responsible for managing the VMs' creation, configuration, and removal, as well as their access to the physical resources of the host system. T
質問 # 46
Which data deduplication method would a cloud service provider use when storing back up data at their location?
- A. Source-based
- B. Target-based
- C. Agent-based
- D. Application-based
正解：A
解説：
Cloud service providers use source-based method when performing a backup from consumer's location to their location.
質問 # 47
How is NVMe used to connect a host to M.2 storage devices?
- A. through a PCIe bus card
- B. through an embedded FC HBA controller
- C. through a PCIe bus FC HBA card
- D. through an embedded PCIe controller
正解：D
解説：
NVMe (Non-Volatile Memory Express) uses an embedded PCIe (Peripheral Component Interconnect Express) controller to connect hosts to M.2 storage devices. This direct connection allows for high-speed data transfer and low latency, making NVMe suitable for performance-intensive applications.
References:
* Dell EMC Information Storage and Management V5, Module: Storage Technologies
質問 # 48
An organization wants to replicate their data by extending the local network across a public network. Prior to implementing replication, they need to secure the network.
Which security control mechanism is recommended?
- A. Demilitarized zone
- B. Virtual local area network
- C. Virtual private network
- D. Virtual storage area network
正解：C
質問 # 49
In a data archiving environment, which component scans primary storage to find the files that are required to archive?
- A. Archive agent
- B. Archive stub file
- C. Archive storage
- D. Archive database server
正解：A
解説：
In a data archiving environment, the archive agent is responsible for scanning primary storage to identify files that need to be archived. The agent looks for files based on specific criteria such as age, size, and access frequency, then initiates the archiving process by moving or copying the files to the archive storage. This helps in managing storage efficiently by freeing up space on primary storage.References: Dell Information Storage and Management V5 documents, ExamTopics.
質問 # 50
A Fibre Channel switch has eight ports and all ports must be operational from 8 AM to 8 PM, Monday through Friday. However, a failure of Port 2 occurs on a particular week as follows:
Monday = 10 AM to 12 PM Wednesday = 4 PM to 9 PM Thursday = 4 PM to 7 PM Friday = 3 PM to 6 PM Saturday = 9 AM to 1 PM What is the availability of Port 2 in that week?
- A. 78.3%
- B. 80%
- C. 70%
- D. 71.6%
正解：C
解説：
* Total Operational Hours (Monday to Friday): 12 hours/day * 5 days = 60 hours
* Failure Times:
* Monday: 2 hours (10 AM to 12 PM)
* Wednesday: 5 hours (4 PM to 9 PM)
* Thursday: 3 hours (4 PM to 7 PM)
* Friday: 3 hours (3 PM to 6 PM)
* Saturday (not counted in the required time frame)
* Total Failure Hours (Monday to Friday): 2 + 5 + 3 + 3 = 13 hours
* Availability Calculation
:Availability=(Total Operational HoursFailure HoursTotal Operational Hours)×100Availability=(Total Op References: Dell ISM V5 Course, Module on Availability and Performance Management.
質問 # 51
What is an impact of a Denial of Service (DoS) attack?
- A. Prevents legitimate users from accessing IT resources or service
- B. Duplicates user credentials to compromise data security
- C. Compromises user accounts and data to malicious insiders
- D. Hijacks privileges to compromise data security
正解：A
解説：
A Denial of Service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet. DoS attacks typically flood a network with excessive requests, overwhelming the network and preventing legitimate users from accessing IT resources or services. This type of attack does not compromise user accounts, hijack privileges, or duplicate user credentials, but it does effectively deny service to legitimate users.
References:
* Dell EMC Information Storage and Management V5 documentation.
* Dell Certification Overview
質問 # 52
What is the key advantage of RAID 6 compared to RAID 5?
- A. Higher resiliency
- B. Higher usable storage capacity
- C. Lower write penalty
- D. Fewer disk drives
正解：A
質問 # 53
What method does FCIP use to transport Fibre Channel SAN data?
- A. FCIP encapsulates and tunnels FC SAN data over Ethernet networks.
- B. FCIP splits LAN and FC SAN data and tunnels FC SAN data over Ethernet networks.
- C. FCIP encapsulates and tunnels FC SAN data over IP networks.
- D. FCIP separates LAN and FC SAN data and tunnels FC SAN data over IP networks.
正解：C
解説：
FCIP (Fibre Channel over IP) encapsulates Fibre Channel frames into IP packets, allowing them to be transported over IP networks. This tunneling technique enables the extension of Fibre Channel SANs over long distances using existing IP infrastructure, facilitating connectivity between geographically dispersed SANs.References:
* Dell EMC Information Storage and Management V5, Module on SAN and FCIP
質問 # 54
What is an accurate statement about scale-out NAS?
- A. Increases performance and capacity by adding nodes to the cluster
- B. Supports only data replication for protecting data across the nodes
- C. Creates a different file system for each node in the cluster
- D. Pools node resources in a cluster to work as multiple NAS devices
正解：A
質問 # 55
What is an accurate statement about governance?
- A. Restricts access privileges to certain legitimate users to avoid IT managed resource conflicts
- B. Determines strategy and operational rules by which companies are directed and managed
- C. Ensures removal of data security vulnerabilities
- D. Creates the policies and enforces their adherence
正解：B
解説：
Governance is a practice of creating and enforcing policies that guide an organization in how it should be managed and operated. This includes developing strategies, setting operational rules, and making decisions that direct how an organization should be run. It is important to note that governance is not limited to only IT-related matters, as it encompasses all aspects of the organization, from financial to personnel management.
質問 # 56
Which Dell EMC product is a disk-based backup and recovery solution that provides inherent source-based deduplication?
- A. Data Domain
- B. SRDF
- C. Avamar
- D. TimeFinder
正解：C
質問 # 57
An organization wants to replicate data over a public network to a cloud.
Which security control mechanism helps to secure the data during replication?
- A. Data compression
- B. LUN masking
- C. Encryption
- D. Data shredding
正解：C
解説：
Encryption is the security control mechanism that helps to secure data during replication over a public network to a cloud. By encrypting data, it ensures that even if the data is intercepted during transmission, it cannot be read or tampered with by unauthorized parties. Encryption algorithms transform the data into a secure format that can only be decrypted by authorized users with the correct decryption key, thereby protecting the data's confidentiality and integrity.References:= Dell Information Storage and Management V5 course materials
質問 # 58
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