IT class - June 11th [Community Learning Week[Phase 3] Activity

【Answer】1.C    2.B     3.D     4.A      5.B

【Winner】Zebra,  Suhail,  way_7002,  Pico_Tico_2018,  viettel

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Hello, everyone!

Join the Community Learning week IT class! 

IT class learning time of this phase: June 7th –  12th.

Answer time of this class: June 10th, 2 AM - June 11th, 10 AM (UTC+0).

Class topic

Post 1. SmartDedupe and SmartCompression of Dorado V6

SmartDedupe is data deduplication from Huawei. Deduplication deletes duplicate data in storage systems to save space. .. .…(more)

Post 2.  Introduction to SmartDedupe&SmartCompression

The Data Deduplication feature (SmartDedupe) is a data reduction technology that reduces the amount of physical storage used by data by eliminating redundant blocks in the storage system to meet the growing demand for data storage..…(more)

Post 3. 【Storage Feature】Smart Data Compression Feature for Block - SmartCompression

The OceanStor V5series storage system supports inline deduplication and compression, that is, only the data written after SmartDedupe and SmartCompression are enabled will be deduplicated and compressed.

When both SmartDedupe and SmartCompression are enabled, deduplication is performed before compression... .(more)

Post 4. The Difference Between LDAP and Active Directory

LDAP provides the communication language that applications use to communicate with other directory service servers. Directory services store users, passwords, and computer accounts and share this information with other entities on the network..… (more)

Post 5. What does parity bit mean in RAID arrays? 

There are two variants of parity bits: even parity bit and odd parity bit. When using even parity, the parity bit is set to 1 if the number of ones in a given set of bits (not including the parity bit) is odd, making the entire set of bits (including the parity bit) even. When using odd parity, the parity bit is set to 1 if the number of ones in a given set of bits (not including the parity bit) is even, keeping the entire set of bits (including the parity bit) odd. In other words, an even parity bit will be set to "1" if the number of 1's + 1 is even, and an odd parity bit will be set to "1" if the number of 1's +1 is odd..… (more)

Class Q&As

After attending this class, please answer the following questions and comment with the answers below this post.

1. (Single-Answer Question)What is NOT the type of compression?

A. Inline compression

B. Software compression

C. SSD compression

D. Hardware compression

2. (True or False) If the LUN is configured with the SmartDedupe&SmartCompression feature, the LUN does not support the following value-added features or functions: SmartQoSSmartCacheMapping, and Multi-Tenant.

A. True

B. False

3. (Single-Answer Question) To set the block size of a thin LUN, run which command on the command line interface (CLI) and modify the value of parameter grain_size? 

A. create block

B. create block group

C. create lun group

D. create lun

4. (True or False) LDAP is used as the authentication protocol for the directory service. We use LDAP to authenticate users of local and web applications, NAS devices, and SAMBA file servers.

A. True

B. False

5. (Single-Answer Question) Which RAID level uses the parity check technology?

A. RAID 1

B. RAID 5

C. RAID 0

D. RAID 10

Hope you get good grades, come on! 

Click to learn:  >>>previous class – 5G