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NEW QUESTION 152
HA (High Availability) refers to the ability to continue to access applications in the event of a single component failure in the local system. In a data center, the downtime is one hour a year, so what is the HA of the data center?
- A. 0.998934
- B. 0.9998858
- C. 0.999999
- D. 0.99999
Answer: B
Explanation:
Analysis: HA=1-(downtime/(downtime+run time))
4 9s: 0.9999 52.56 minutes/year 5 9s:
0.99999 5.265 minutes/year 6 9s: 0.999999 seconds/year
NEW QUESTION 153
A backup set is a group of data that is backed up in a batch. A backup set can be used for either full backup or incremental backup.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 154
In the Huawei storage system, which of the following is true about the characteristics of virtual snapshot LUNs?
- A. The snapshot LUN cannot be mapped to the host
- B. Complete data copying is unnecessary
- C. The storage system can generate a snapshot in seconds
- D. data use mapping table lookup
Answer: B,C,D
NEW QUESTION 155
There are two descriptions about backups, the correct ones are:
Description 1: The disaster recovery solution does not need to consider whether it is backed up on tape or hard disk.
Description 2: The backup plan should consider the worst case.
- A. Descriptions 1 and 2 are both correct
- B. Descriptions 1 and 2 are wrong
- C. Description 1 is right, description 2 is wrong
C, description 1 is wrong, description 2 is right
Answer: B
NEW QUESTION 156
Which of the following operating systems supports the CIFS protocol natively?
- A. AIX
- B. Win7
- C. Solaris
- D. FreeBSD
Answer: B
Explanation:
Explanation
NEW QUESTION 157
A reliable ICT infrastructure, to avoid a single point of equipment failure, or even a single point of personnel problems.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 158
Many companies gather so much data that they cannot extract the right information from the data,
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 159
Which of the following operating systems can access CIFS shares without installing additional software?
- A. AIX
- B. Win7
- C. Solaris
- D. FreeBSD
Answer: B
NEW QUESTION 160
Which of the following are the 3 layers of SCSI Target Model? (Multiple Choice)
- A. Middle Layer.
- B. Device Layer.
- C. Port Layer.
- D. Network Layer.
Answer: A,B,C
NEW QUESTION 161
Cloud computing can be used to improve reliability.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 162
What is best described as: the time it takes for the desired data to be beneath the read head when the head is on the correct track?
- A. Rotational latency
- B. Rotational speed
- C. Seek time
- D. Throughput
Answer: A
NEW QUESTION 163
The process of regenerating all user data and check data on the failed disk in the mirrored array or RAID array is called:
- A. hot
backup - B. restore
- C. rebuild
- D. Recalculate
Answer: C
NEW QUESTION 164
Which of the following statements are characteristics of pre-copy technology?
(Multiple Choice)
- A. Reduces the occurrence of reconstruction.
- B. Migrates data from a suspected faulty disk to a hot spare disk immediately after the error count of the suspected faulty disk exceeds the preset threshold.
- C. Improves system reliability.
- D. Reduces system performance.
Answer: A,B,C
NEW QUESTION 165
Storage refers to physical devices that is able to store and save data for user access.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 166
What is the main difference between mechanical drives such as SAS with solid state drives(SSD)?
- A. The performance of the hard drive.
- B. The presence of mechanical parts.
- C. The capacity of hard drive.
- D. The lifespan of hard drive.
Answer: B
NEW QUESTION 167
The RTO in the disaster recovery system measurement index refers to the point in time when the system and data must be recovered after the disaster begging.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 168
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