With multiple disks, we can improve the transfer rate as well by ___________ data across multiple disks.

Which of the following statements are true?
Statement I Big data refers to no precise quantity, but generally refers to data in the range of Petabytes and Exabyte, i.e. billions to trillions of records, all from various sources. Big data is generated much faster. than traditional data in much larger quantities.
Statement II Big data interests industries because they are able to learn more patterns and curious variances than smaller data sets, with the capability to provide valuable insights into consumer behaviour, weather systems, financial market activity, or other phenomena.
Statement III Various departments and product lines use various applications within most organisations and store data in separate datasets. These separate databases may contain similar data, but data from one data base to another is not always consistent. This is called data silo.

A

Both statements I and II

B

Both statements II and III

C

Both statements I and III

D

All of the above

Which of the following statements are true/false?
1. A minimum rate of wages for the time spent by employees for the production of output is minimum time rate.
2. Minimum piece rate is the rate based on the quantity of the output employees have produced.
3. The guaranteed time rate is a minimum rate of remuneration to apply in the case of employees employed on piece work for the purpose of securing to such employees a minimum rate of wages on a time work basis.
4. A minimum rate of remuneration to apply in the case of employees employed on piece work for the purpose of securing to such employees a minimum rate of wages on a time work basis is overtime rate.

A

1, 2, 3 and 4 are true

B

1, 3 are true and 2, 4 are false

C

2, 4 are true and 1, 3 are false

D

3, 4 are true and 2, 1 are false

______________ partitions data and parity among all N+1 disks, instead of storing data in N-disks and parity in one disk.

A

Block interleaved parity

B

Block interleaved distributed parity

C

Bit parity

D

Bit interleaved parity

RAID level ____ spreads parity and data among all N+1 disks rather than storing data in N disks and parity in 1.

A

3

B

4

C

5

D

6

Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the

A

Surrounding temperature

B

Average temperature of the fin

C

Temperature of the fin end

D

Constant temperature equal to that of the base

You are the administrator of a Windows 2000 Server computer that has one hard disk. This computer runs a custom application that writes a large number of small temporary files in a single directory to support request from client computers. To improve performance of the application, you add three new 100-GB SCSI disks to the server to hold these temporary files. You want to ensure that the application can use all 300 GB of space with a single drive letter. You also want to ensure the fastest possible performance when writing the temporary files. How should you configure the three disks?

A

Convert all three disks to dynamic disks. Create a striped volume

B

Convert all three disks to dynamic disks. Create a RAID-5 volume

C

Create a single volume on each of the three disks. Format each volume as NTFS. Mount the roots of Disk 2 and Disk 3 in the root folder of Disk 1

D

Create a single volume on Disk 1. Format the volume as NTFS. Extend the volume to create a spanned volume that includes the space on all three disks

E

None of above

The magnetic recording technique used for storing data onto the disks (floppy disks) is called

A

return to zero

B

non-return to zero

C

return to zero and Non-return to zero

D

none of the mentioned

You are the administrator of a Windows 2000 Server computer that has FIVE hard disks. Four 100 GB hard disks on the server are configured as a single stripe volume. You want to reconfigure the fourth disk so that the volume is fault tolerant and has as much space possible available for storing data. You want to use only existing hardware. What should you do?

A

Convert the disk to dynamic disk shut doWn and restart the server

B

Backup the data on the stripe volume and delete the stripe volume. Create a raidS volume on the four disks, restore the data to the new raid5 volume

C

Backup the data on the stripe volume and delete the stripe volume. Create a mirror volume, shut down and restart the server. Restore the data to new mirror volumes

D

Backup the data on the stripe volume and delete the stripe

E

None of above

You are the administrator of Windows 2000 Server computer. Your computer has a span volume that consists of areas on three physical hard disks on the server. The three disks support hot swapping. You regularly backup the span volume by using windows backup. One of the disk fail, you replace the disk with a new un-partitioned disk. You want to recover the span volume and disk data as soon as possible. What should you do?

A

Extend the span volume to include the new disk, rescan the disk

B

Extend the span volume to include the new disk, shut down and restart the server, use windows backup to restore the data

C

Re scan the disk, format the span volume. Use windows back up to restore the data

D

Re scan the disk, extend the span volume to include the new disk. Shut down and restart the server, use windows backup to restore the new data

E

Re scan the disk, remove the span volume and create a new span volume that includes the new disk. Format the span volume, use Windows back up to restore the data

Data striping by splitting bits across multiple disks is called as _______

A

RAID striping

B

Array striping

C

Bit level striping

D

Block level striping

With multiple disks, we can improve the transfer rate as well by ___________ data across multiple disks.

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