Data Storage Technologies and Networks

Question 1
Which of the following is also known as In-band visualization
Select one:
 a. Asymmetric virtualization
 b. Symmetric virtualization 
 c. None of a) and b) are true
 d. Both a) and b) are true.
Feedback
The correct answer is: Symmetric virtualization


Question 2
 ( i) Block based deduplication is a deduplication technology
(ii) File level single instance is a deduplication technology
Choose the correct option from following
Select one:
 a. None of (i) and (ii) are true
 b. (i) is true but (ii) is false
 c. (i) is false but (ii) is true
 d. Both (i) and (ii) is true 
Feedback
The correct answer is: Both (i) and (ii) is true

Question 3
The interval of time that might pass during a disruption before the quantity of data lost during that period exceeds the Business Continuity Plan's maximum allowable threshold  is called

Select one:
 a. Either of a) or b)
 b. Recovery Point Objective
 c. None of a) or b)
 d. Recovery Time objective 
Feedback
The correct answer is: Recovery Point Objective

Question 4
 A NAS solution is most appropriate for what type of data environment
Select one:
 a. Shared access 
 b. Remote access
 c. Parallel access
 d. Secured Access
Feedback
The correct answer is: Shared access


Question 5
A Cumulative backup,
Select one:
 a. Contains the changes since the last backup, of any type, whichever was most recent
 b. Is a type of incremental backup that contains changes made to a file since the last full backup.
 c. None of the above
 d. Is a backup of all data on the target volumes, regardless of any changes made to the data itself. 
Feedback
The correct answer is: Is a type of incremental backup that contains changes made to a file since the last full backup.


Question 6
Which of the following does not support storage virtualization
Select one:
 a. Server
 b. RAM
 c. Storage device
 d. Network 
Feedback
The correct answer is: RAM


Question 7
 (i) FCIP encapsulates the entire FC frame into IP packets
(ii) iFCP encapsulates the entire FC frame into IP packets
Choose the correct option from following
Select one:
 a. Both (i) and (ii) are false
 b. (i) is flase but (ii) is true 
 c. Both (i) and (ii) is true
 d. (i) is true but (ii) is false
Feedback
The correct answer is: (i) is true but (ii) is false


Question 8
In a thin provisioning extent size is 768 kb. If a file of 2400 kb is written then the space allocated will be
Select one:
 a. 4 MB
 b. 3 MB
 c. 2400 KB 
 d. 2 MB
Feedback
The correct answer is: 3 MB

Question 9
1.      (i) Thin provisioning is a capacity optimization technology
(ii) Deduplication is a capacity optimization technology
 Choose the correct option from following

Select one:
 a. Both (i) and (ii) is true
 b. (i) is true but (ii) is false 
 c. (i) is false but (ii) is true
 d. None of (i) and (ii) are true
Feedback
The correct answer is: Both (i) and (ii) is true


Question 10
In Fiber channel Data transport services which of the following supports connection oriented and circuit switched communication mode?
Select one:
 a. Class 2
 b. Class 1 
 c. Class 3
 d. All of the above
Feedback
The correct answer is: Class 1

Question 11
Which layers in Fiber channel are also refereed as Fibre Channel Physical levels (FC-PH Levels)
Select one:
 a. FC-0, FC-1, FC-3
 b. FC-2, FC-3, FC-4
 c. FC-1, FC-2, FC-3
 d. FC-0, FC-1, FC-2 
Feedback
The correct answer is: FC-0, FC-1, FC-2

Question 12
Which of the following can be refereed as SAN islands as there is limited connectivity and there is a degree of isolation
Select one:
 a. Enterprise SAN FC fabric
 b. All of the above 
 c. FC switched fabric
 d. FCAL
Feedback
The correct answer is: FCAL

Question 13
 (i) File system can be virtualized
(ii) Block device can be virtualized
Choose the correct option from following
Select one:
 a. None of (i) and (ii) are true
 b. (i) is true but (ii) is false
 c. (i) is false but (ii) is true
 d. Both (i) and (ii) is true 
Feedback
The correct answer is: Both (i) and (ii) is true

Question 14
Which of the following supports block storage over IP
Select one:
 a. FCIP
 b. All of the above
 c. iFCP
 d. iSCSI 
Feedback
The correct answer is: All of the above

Question 15
 In ‘Hot backup’

Select one:
 a. Production database server is not in air conditioned environment
 b. Production database is not interrupted 
 c. Backup server is not in air conditioned environment
 d. Production database is interrupted
Feedback
The correct answer is: Production database is not interrupted

Question 16
In Synchronous replication
Select one:
 a. Commit occurs just before the next transaction happen in each of the replicas
 b. Commit never occurs.
 c. Commit occurs after all of the replicas are updated 
 d. Commit occurs after each of the replicas are updated
Feedback
The correct answer is: Commit occurs after all of the replicas are updated

Question 17 Which of the following is not correct about SAN
Select one:
 a. It supports File based I/O
 b. It can support higher bandwidth due to fiber channel
 c. It supports isolation and filtering 
 d. It supports centralized storage and management
Feedback

The correct answer is: It supports File based I/O
Question 18
Which of the following does not affect the storage performance?
Select one:
 a. Thin LUN
 b. Cache 
 c. CPU speed
 d. RAID
Feedback
The correct answer is: CPU speed

Question 19
Which of the following is not a storage array based replication
Select one:
 a. Full-volume mirroring
 b. File-system snap shot 
 c. Pointer-based full-volume replication
 d. Pointer-based virtual replication
Feedback
The correct answer is: File-system snap shot


Question 20
When host deletes data, thin provisioned array may not recognize it and can still show the space as used. The technology that recognizes that data is deleted by host and subsequently release the extents from array to free pool is called
Select one:
 a. Zero space reclamation 
 b. All of the above
 c. Compression
 d. Mapping
Feedback
The correct answer is: Zero space reclamation

  Data Storage Technologies and Networks

Question 1
If read and write performance is the only criterion, which would you choose?
Select one:
 RAID 0
 RAID 1 
 RAID 5
 RAID 50
Feedback
Your answer is incorrect.
The correct answer is: RAID 0


Question 2
Question text
Which of the following RAID levels guarantees double disk failure protection?
Select one:
 Raid 5
 Raid 6 
 Raid 0+1
 Raid 1+0
Feedback
Your answer is correct.
The correct answer is: Raid 6


Question 3
Question text
What is the capacity of the disk with 5 platters. 2 surfaces per platter, 20000 tracks per surface, 300 sectors per track and 512 bytes per sector
Select one:
 30.72GB 
 24.40GB
 21.40GB
 15.16GB
Feedback
Your answer is correct.
The correct answer is: 30.72GB

Question 4
Question text
Identify a network file protocol in the below mentioned set
Select one:
 FC
 CIFS
 SCSI 
 NAS


The correct answer is: CIFS


Question 5
How many disk failure can disk failure can be withstood by RAID 6?
Select one:
 1
 2 
 3
 4
Feedback
Your answer is correct.
The correct answer is: 2


Question 6
Question text
What is the memory bandwidth requirement of a machine executing 4*105 instructions per second, average instruction size of 3.8 bits and 7.2 bits of average operand size per instruction?
Select one:
 1.52 Mbps
 0.72 Mbps
 2.88 Mbps 
 4.4 Mbps
The correct answer is: 4.4 Mbps


Question 7

Question text
Which version of NFS Mandates strong security
Select one:
 NFSv1
 NFSv2 
 NFSv3
 NFSv4
The correct answer is: NFSv4


Question 8
What level of RAID supported by some NAS systems?
Select one:
 RAID-6
 RAID-10
 RAID-5 
 None
Feedback
Your answer is incorrect.
The correct answer is: RAID-6


Question 9
Estimate the sustained transfer rate of a drive if disk drive spins at 7200 RPM, has a sector size of 512 bytes, and holds 160 sectors per track around
Select one:
 9400 KB/s
 9600 KB/s
 9800 KB/s 
 10000 KB/s
Feedback
Your answer is correct.
The correct answer is: 9800 KB/s
Question 10
Best I/O Technique for low volume data transfer
Select one:
 Polling
 Interrupt Driven 
 DMA
 b and c
Feedback
Your answer is correct.
The correct answer is: Interrupt Driven


Question 11
Which storage Technology uses low level disk drive access commands like READ block, WRITE block and READ capacity
Select one:
 NAS
 SAN
 DAS 
 All the above
Feedback
Your answer is incorrect.
The correct answer is: SAN


Question 12
If average latency is 2.99 ms and average seeks time is 4.7 ms, then IOPS of the disk will be?
Select one:
 129
 130 
 128
 131
Feedback
Your answer is correct.
The correct answer is: 130


Question 13
Wear leveling affects
Select one:
 Hard disk
 Flash
 Optical storage 
 RAM
The correct answer is: Flash


Question 14
PCI Bus Lines contains
Select one:
 Control Lines
 Data Lines
 Address Lines 
 All the above
The correct answer is: All the above


Question 15
A hard disk has 63 sectors per track, 10 platters each with 2 recording surfaces and 1000 cylinders. The address of a sector is given as a triple (c, h, s), where c is the cylinder number, h is the surface number and s is the sector number. Thus, the 0th sector is addressed as (0, 0, 0), the 1st sector as (0, 0, 1), and so on
The address <400,16,39> corresponds to sector number:

Select one:
 505035
 505036 
 505037
 505047
The correct answer is: 505037


Question 16
How do we meet memory bandwidth requirements?

Select one:
 L1 cache, L2 cache and DRAM
 Direct Attached Storage and Network Storage
 Archival Storage 
 All the above
The correct answer is: All the above


Question 17
Which option is dedicated for file sharing?
Select one:
 bimodal
 network attached storage
 stealth 
 storage area network
The correct answer is: network attached storage


Question 18
A certain hard disk has 16 cylinders, 480 tracks per cylinder, 32 sectors per track, and 512 bytes per sector. What is its storage capacity?
Select one:
 125,829,120 bytes
 125,929,120 bytes 
 125,729,120 bytes

125,629,120 bytes
The correct answer is: 125,829,120 bytes


Question 19
Without power down a machine how to remove hard drives?
Select one:
 fast booting
 hot swapping
 drive duplexing 
 drive mirroring
The correct answer is: hot swapping


Question 20
Do iSCSI storage mandatory to required switch?
Select one:
 Yes
 No
 None 
 a & b both
The correct answer is: No

Data Storage Technologies and Networks

1. Wear leveling affects
Select one:

•  Hard disk
•  Flash  
•  Optical storage
•  RAM

The correct answer is: Flash


Question 2

Without power down a machine how to remove hard drives?
Select one:

•  fast booting
•  hot swapping  
•  drive duplexing
•  drive mirroring

Feedback
Your answer is correct.
The correct answer is: hot swapping


Question 3

Do iSCSI storage mandatory to required switch?
Select one:

•  Yes
•  No  
•  None
•  a & b both

Feedback
Your answer is correct.
The correct answer is: No


Question 4

Estimate the sustained transfer rate of a drive if disk drive spins at 7200 RPM, has a sector size of 512 bytes, and holds 160 sectors per track around
Select one:

•  9400 KB/s
•  9600 KB/s  
•  9800 KB/s
•  10000 KB/s

Feedback
Your answer is incorrect.
The correct answer is: 9800 KB/s



Question 5

A hard disk has 63 sectors per track, 10 platters each with 2 recording surfaces and 1000 cylinders. The address of a sector is given as a triple (c, h, s), where c is the cylinder number, h is the surface number and s is the sector number. Thus, the 0th sector is addressed as (0, 0, 0), the 1st sector as (0, 0, 1), and so on
The address <400,16,39> corresponds to sector number:

Select one:

•  505035
•  505036
•  505037  
•  505047

Feedback
Your answer is correct.
The correct answer is: 505037


Question 6

If MTTF of  a disk is 80000hrs what us MTTF of an array of 8 disks
Select one:

•  640000 hrs  
•  10000 hrs
•  80000 hrs
•  40000 hrs

Feedback
Your answer is incorrect.
The correct answer is: 10000 hrs



Question 7

Best I/O Technique for low volume data transfer
Select one:

1.  Polling
2.  Interrupt Driven
3.  DMA  
4.  b and c

Feedback
Your answer is incorrect.
The correct answer is: Interrupt Driven


Question 8

How many disk failure can disk failure can be withstood by RAID 6?
Select one:

•  1
•  2  
•  3
•  4

Feedback
Your answer is correct.
The correct answer is: 2


Question 9

Identify a network file protocol in the below mentioned set
Select one:

•  FC
•  CIFS  
•  SCSI
•  NAS

Feedback
Your answer is correct.
The correct answer is: CIFS


Question 10

A computer has a single cache with a hit time of 4 ns and hit rate is 90%. Main memory has a 35 ns access time. What is the computer’s effective access time?
Select one:

•  5 ns
•  7.5 ns  
•  5.75 ns
•  6 ns

Feedback
Your answer is correct.
The correct answer is: 7.5 ns


Question 11

Which of the following RAID levels guarantees double disk failure protection?
Select one:

•  Raid 5
•  Raid 6  
•  Raid 0+1
•  Raid 1+0

Feedback
Your answer is correct.
The correct answer is: Raid 6



Question 12

What is the capacity of the disk with 5 platters. 2 surfaces per platter, 20000 tracks per surface, 300 sectors per track and 512 bytes per sector
Select one:

•  30.72GB  
•  24.40GB
•  21.40GB
•  15.16GB

Feedback
Your answer is correct.
The correct answer is: 30.72GB


Question 13

Which storage Technology uses low level disk drive access commands like READ block, WRITE block and READ capacity
Select one:

•  NAS  
•  SAN
•  DAS
•  All the above

Feedback
Your answer is incorrect.
The correct answer is: SAN


Question 14

How do we meet memory bandwidth requirements?

Select one:

•  L1 cache, L2 cache and DRAM  
•  Direct Attached Storage and Network Storage
•  Archival Storage
•  All the above

Feedback
Your answer is incorrect.
The correct answer is: All the above


Question 15

If average latency is 2.99 ms and average seeks time is 4.7 ms, then IOPS of the disk will be?
Select one:

•  129
•  130  
•  128
•  131

Feedback
Your answer is correct.
The correct answer is: 130



Question 16

Which of the following model makes the server to keep track of cached copies and notifies them on update

Select one:

•  Asynchronous writing model  
•  Cache verification model
•  Callback model
•  Leasing model

Feedback
Your answer is incorrect.
The correct answer is: Callback model


Question 17

What level of RAID supported by some NAS systems?
Select one:

•  RAID-6
•  RAID-10
•  RAID-5
•  None  

Feedback
Your answer is incorrect.
The correct answer is: RAID-6



Question 18

If read and write performance is the only criterion, which would you choose?
Select one:

•  RAID 0  
•  RAID 1
•  RAID 5
•  RAID 50

Feedback
Your answer is correct.
The correct answer is: RAID 0



Question 19

Which version of NFS Mandates strong security
Select one:

1.  NFSv1
2.  NFSv2
3.  NFSv3
4.  NFSv4  

Feedback
Your answer is correct.
The correct answer is: NFSv4


Question 20
PCI Bus Lines contains
Select one:

•  Control Lines
•  Data Lines
•  Address Lines
•  All the above  

Feedback
Your answer is correct.
The correct answer is: All the above

                                  Software Architectures

Q.1 Quality attributes that are visible at runtime
Select one:
 a. All of the above 
 b. Performance &amp; modifiability
 c. Modfiability &amp; usability
 d. Security &amp; performance
Feedback
The correct answer is: Security &amp; performance

Question 2
Q.2 Which of the following quality design decision helps in create,delete and use of data structure
Select one:
 a. Coordination
 b. Data Model 
 c. Resource management
 d. Technology Choice
Feedback
The correct answer is: Data Model

Question 3

What concept is followed by Conceptual integrity?
Select one:
 1. Architecture should do similar things in similar ways 
 2. None of the mentioned


 3. Architecture should do different things in different ways
 4. Architecture should do different things in similar ways


The correct answer is: Architecture should do similar things in similar ways

Question 4
Q.04 "Given app does not work with my mobile"
Select one:
 a. Integrability 
 b. Functionality
 c. Usability
 d. Modifiability
Feedback
The correct answer is: Integrability


Question 5
Question text
The full form of POFOD is
Select one:
 Performance of Features of Design Decisions
 Performance of Fault of Detection
 Portability of Factory on Demand
 Probability Of Failure On Demand 
The correct answer is: Probability Of Failure On Demand


Question 6
One of the statements given below is not true with respect to stakeholders' priorities. Which one?
Select one:
 Release & Configuration Manager: How do I replace of a subsystem with minimal impact ?
 Application Development team: How do I plan for division of work? 
 Users/Customers: How easy it is to use?
 Database Designer: Information security issues?
Feedback
Your answer is incorrect.
The correct answer is: Release & Configuration Manager: How do I replace of a subsystem with minimal
impact ?


Question 7

Q.7 Which requirements can affect binding time decisions out of the following mentioned?
Select one:
 a. Regional distinctions
 b. Portability
 c. Configurations
 d. All of the choices given 

Feedback
The correct answer is: All of the choices given


Question 8
Q.8 Which software structure of Allocation structure is useful for performance, availability?
Select one:
 a. Deployment 
 b. None of the above
 c. Work assignment
 d. Implementation
Feedback
The correct answer is: Deployment


Question 9

Q.9 Tactics for performance improvement include (Pick the wrong option)
Select one:
 a. Replication of information 
 b. Load balancing
 c. Adding more people to the project
 d. Parallel processing
Feedback
The correct answer is: Adding more people to the project


Question 10
One of the Society Business goals is:
Select one:
 Maximum Profit in short time
 Run a stable organization
 Operate effectively within legal environment
 Expand market share 
Feedback
The correct answer is: Operate effectively within legal environment


Question 11
What makes a good architecture?

Select one:
 All of the mentioned
 The architect should have the technical requirements for the system and an articulated and prioritized list of qualitative properties 
 The architecture may not be the product of a single architect or a small group
 The architecture may not be well documented

The correct answer is: The architect should have the technical requirements for the system and an articulated and prioritized list of qualitative properties


Question 12

One of the statements given below is true with respect to stakeholders' priorities. Which one?
Select one:
 Chief Technologist: Does it adhere to organization standards ?
 Database Designer: Build strategy
 System Maintainer: Performance and scalability
 Infrastructure Manager: How fast can I diagnosis of faults and failures and how quickly I can recover? 
Feedback
Your answer is incorrect.
The correct answer is: Chief Technologist: Does it adhere to organization standards ?


Question 13

Q.13 Tactics for Security include (Pick the wrong answer)
Select one:
 a. Audit trail 
 b. Authorization
 c. Locking
 d. Encryption
Feedback
The correct answer is: Locking

Question 14
Q.14 Which of the following is right dependence relationship?

Select one:
 a. Modifiability depends on system’s modularization
 b. All of the above 
 c. Re-usability depends on the volume and complexity of the inter-component communication and coordination
 d. Performance depends on how strongly components are coupled with other components in system
Feedback
The correct answer is: Modifiability depends on system’s modularization


Question 15

A running process resets the timer periodically and it starts counting again.  If the timer is not reset it reaches a high enough count to trigger an alarm. A message is passed  to an appropriate location for corrective action.  This is a tactics for:
Select one:
 Fault Detection 
 Fault Prevention
 Error masking
 Redundancy

The correct answer is: Fault Detection


Question 16
Q.16 Which software structure of component connector structure is useful for "modifiability"?
Select one:
 a. Process
 b. Client-server 
 c. Shared Date
 d. Concurrency
Feedback
The correct answer is: Shared Date


Question 17

Q.17 Which of the following is not related to Resource Mgmt of Performance
Select one:
 a. System elements that need to be aware of, and manage, time and other performance-critical resources 
 b. Maintaining multiple copies of key data would benefit performance
 c. Prioritization of resources
 d. Process/thread models
Feedback
The correct answer is: Prioritization of resources


Question 18

Q.18 In 4+1 view, which view is concerned with software management?
Select one:
 a. Developement view
 b. Physical view
 c. Process view
 d. Logical view 
Feedback
The correct answer is: Developement view


Question 19

Q.19 Why is software architecture called vehicle for stakeholder communication?
Select one:
 a. Architecture provides a common language in which different concerns can be expressed
 b. Both a and b
 c. Each stakeholder of a software system is concerned with different characteristics of the system affected by architecture
 d. Architecture is more of technical in nature and not meant for all stakeholders 
Feedback
The correct answer is: Both a and b


Question 20

What are the characteristics does a good SA consists of?
Select one:
 a, b
 Reliability, Usability
 Completeness, Well formedeness
 Consistency, Feasibility, Adequacy 

The correct answer is: a, b