HH0-120 Hitachi Data Systems Storage
Foundations Modular Exam
1. What is the primary purpose of storage systems?
A) To power computer systems
B) To store and retrieve data
C) To manage network traffic
D) To perform calculations
Answer: B
Explanation: The primary purpose of storage systems is to store and retrieve data.
They serve as essential components in IT environments, enabling organizations to
maintain data availability and integrity.
2. What does data deduplication achieve in storage systems?
A) Increases total storage capacity
B) Reduces duplicate data to save space
C) Enhances data security
D) Improves network performance
Answer: B
, HH0-120 Hitachi Data Systems Storage
Foundations Modular Exam
Explanation: Data deduplication reduces duplicate data, allowing for more
efficient utilization of storage resources, ultimately saving space.
3. Which of the following describes modular storage systems?
A) Systems designed for high-speed computing
B) Systems that offer flexible scalability and manageability
C) Systems that only provide raw storage
D) Systems without any form of redundancy
Answer: B
Explanation: Modular storage systems are characterized by flexibility in scalability
and manageability, allowing organizations to expand storage capacities as
needed.
4. What is RAID used for in storage systems?
A) Randomly accessing data
B) Increasing data redundancy and performance
C) Protecting against power failures
, HH0-120 Hitachi Data Systems Storage
Foundations Modular Exam
D) Managing network security
Answer: B
Explanation: RAID (Redundant Array of Independent Disks) is used to increase
both data redundancy and performance within storage systems by combining
multiple disk drives.
5. Which storage solution is primarily focused on file-level access?
A) SAN
B) NAS
C) SSD
D) HDD
Answer: B
Explanation: NAS (Network Attached Storage) is primarily focused on file-level
access, contrasting with SAN (Storage Area Network), which offers block-level
access.
6. Thin provisioning in storage systems refers to:
, HH0-120 Hitachi Data Systems Storage
Foundations Modular Exam
A) Using only physical storage
B) Allocating storage on demand
C) Data compression
D) Maximizing power efficiency
Answer: B
Explanation: Thin provisioning refers to the allocation of storage space on
demand, which allows organizations to effectively utilize available storage
capacity.
7. The main benefit of snapshot technology in storage is:
A) Enhanced network speed
B) Increased data encryption
C) Real-time data backup
D) Simplified file sharing
Answer: C
Explanation: Snapshot technology allows for real-time data backup, enabling
organizations to recover data quickly without extensive downtime.
Foundations Modular Exam
1. What is the primary purpose of storage systems?
A) To power computer systems
B) To store and retrieve data
C) To manage network traffic
D) To perform calculations
Answer: B
Explanation: The primary purpose of storage systems is to store and retrieve data.
They serve as essential components in IT environments, enabling organizations to
maintain data availability and integrity.
2. What does data deduplication achieve in storage systems?
A) Increases total storage capacity
B) Reduces duplicate data to save space
C) Enhances data security
D) Improves network performance
Answer: B
, HH0-120 Hitachi Data Systems Storage
Foundations Modular Exam
Explanation: Data deduplication reduces duplicate data, allowing for more
efficient utilization of storage resources, ultimately saving space.
3. Which of the following describes modular storage systems?
A) Systems designed for high-speed computing
B) Systems that offer flexible scalability and manageability
C) Systems that only provide raw storage
D) Systems without any form of redundancy
Answer: B
Explanation: Modular storage systems are characterized by flexibility in scalability
and manageability, allowing organizations to expand storage capacities as
needed.
4. What is RAID used for in storage systems?
A) Randomly accessing data
B) Increasing data redundancy and performance
C) Protecting against power failures
, HH0-120 Hitachi Data Systems Storage
Foundations Modular Exam
D) Managing network security
Answer: B
Explanation: RAID (Redundant Array of Independent Disks) is used to increase
both data redundancy and performance within storage systems by combining
multiple disk drives.
5. Which storage solution is primarily focused on file-level access?
A) SAN
B) NAS
C) SSD
D) HDD
Answer: B
Explanation: NAS (Network Attached Storage) is primarily focused on file-level
access, contrasting with SAN (Storage Area Network), which offers block-level
access.
6. Thin provisioning in storage systems refers to:
, HH0-120 Hitachi Data Systems Storage
Foundations Modular Exam
A) Using only physical storage
B) Allocating storage on demand
C) Data compression
D) Maximizing power efficiency
Answer: B
Explanation: Thin provisioning refers to the allocation of storage space on
demand, which allows organizations to effectively utilize available storage
capacity.
7. The main benefit of snapshot technology in storage is:
A) Enhanced network speed
B) Increased data encryption
C) Real-time data backup
D) Simplified file sharing
Answer: C
Explanation: Snapshot technology allows for real-time data backup, enabling
organizations to recover data quickly without extensive downtime.
