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Overall MCQs for Reference
- What does SAS stand for in server technology?
a. Serial Attached SCSI
b. Storage Attached SCSI
c. Serial Advanced SCSI
d. SAS is not SCSI
Answer: asanfoundry+1 - Which of the following protocols can connect the maximum number of devices?
a. SATA
b. SAS
c. FC-AL
d. ATA
Answer: bscribd+1 - Which is true about SAS?
a. It uses a serial interface
b. It supports point-to-point connections
c. It does not require bus termination
d. All of the above
Answer: dbrainscape+1 - What is the core benefit SAS offers over parallel SCSI?
a. Higher device addressability
b. Lower cost
c. Simpler command set
d. No support for SATA devices
Answer: atechtarget+1 - What component acts as the initiator in a SAS topology?
a. Host bus adapter
b. Hard disk drive
c. Power supply
d. Expander
Answer: awikipedia - How are devices in a SAS network physically connected?
a. Daisy chaining
b. Point-to-point
c. Ring topology
d. Bus topology
Answer: btechtarget+1 - Which is not a layer in the SAS protocol stack?
a. Application
b. Data
c. Port
d. PHY
Answer: bwikipedia - What maximum number of devices can a SAS expander address?
a. 128
b. 1024
c. 16256
d. 65535
Answer: dsanfoundry+1 - Which protocol is not a SAS transport protocol?
a. SSP
b. STP
c. SMP
d. SIP
Answer: dscribd+1 - What is the maximum cable length for SAS-1 links?
a. 1 meter
b. 3 meters
c. 10 meters
d. 15 meters
Answer: bseagate - Which SAS version allows up to 12 Gb/s per lane?
a. SAS-1
b. SAS-2
c. SAS-3
d. SAS-4
Answer: cwikipedia - What kind of device is a SAS expander?
a. Increases the number of available ports
b. Stores data
c. Improves cooling
d. Converts serial to parallel
Answer: atechtarget+1 - Which devices can SAS controllers communicate with directly?
a. Only SAS drives
b. SAS and SATA drives
c. SATA and IDE drives
d. Only SATA drives
Answer: bseagate+2 - What is a SAS initiator responsible for?
a. Starting communication
b. Storing data
c. Powering the drive
d. Converting protocols
Answer: awikipedia - In SAS, what is a ‘target’?
a. Host bus adapter
b. Storage device
c. Sensor
d. Power supply
Answer: bwikipedia - Which of the following applies to a SAS wide port?
a. Has more than one physical link
b. Uses only one lane
c. Only for data center use
d. Requires parallel SCSI
Answer: adogemicrosystems+1 - What cable type is typically used for SAS connections?
a. Parallel
b. Fiber
c. Copper
d. Coaxial
Answer: cseagate+1 - Which encoding is used in SAS-3 for data transfer?
a. 8b/10b
b. 10b/12b
c. 128b/150b
d. NRZ
Answer: awikipedia - What is the function of an expander in SAS?
a. Provides redundancy
b. Enables multiple device connections
c. Increases power
d. Manages RAID arrays
Answer: btechtarget+1 - Can SAS devices support dual-port functionality?
a. Yes
b. No
c. Only in SAS-4
d. Only in SAS-1
Answer: awikipedia - What management protocol is used in SAS architecture?
a. SNMP
b. SMP
c. FTP
d. STP
Answer: bwikipedia - What does “service delivery subsystem” mean in SAS?
a. Cable and expander network
b. Power supply system
c. RAID controller
d. Operating system
Answer: atechtarget+1 - SAS offers which advantage over SATA?
a. Full-duplex communication
b. Only half-duplex
c. Lower speeds
d. Higher latency
Answer: aseagate+1 - Which statement is true about SAS and SATA compatibility?
a. SAS controllers can connect SATA drives
b. SATA controllers can connect SAS drives
c. Neither is compatible
d. Both compatible
Answer: atechtarget+1 - What is the main use of SAS in servers?
a. Mass storage connectivity
b. Power supply
c. Networking
d. Memory expansion
Answer: atechtarget+1 - What is the smallest addressable unit in SAS storage?
a. Sector
b. Logical unit number (LUN)
c. Track
d. Cluster
Answer: bbrainscape+1 - Which version introduced 22.5 Gb/s signaling in SAS?
a. SAS-1
b. SAS-2
c. SAS-3
d. SAS-4
Answer: dwikipedia - SATA drives connected to a SAS backplane will use which protocol?
a. SCSI
b. STP
c. Fibre Channel
d. EIDE
Answer: bwikipedia - Which identifier is unique for SAS devices?
a. MAC address
b. SAS address
c. Port ID
d. IP address
Answer: bscribd+1 - What is the main difference between SAS and Parallel SCSI?
a. Serial vs. parallel signaling
b. Device cost
c. Cable color
d. Only software
Answer: aseagate+1 - What topology is possible with SAS expanders?
a. Only star
b. Multiple topologies
c. Only ring
d. Only bus
Answer: bseagate+1 - What is the maximum practical number of SAS devices in one domain?
a. 128
b. 1024
c. 16256
d. 65535
Answer: dsanfoundry+1 - SAS lanes are associated with which property?
a. Link aggregation for bandwidth
b. Only redundancy
c. Only management
d. Only for SATA devices
Answer: adogemicrosystems+1 - What is not a component of typical SAS architecture?
a. Initiator
b. Target
c. Service delivery subsystem
d. Modem
Answer: dwikipedia - SAS ports identified as wide ports have how many physical links?
a. Only one
b. Two or more
c. None
d. Unlimited
Answer: bdogemicrosystems+1 - Point-to-point protocol is a feature of which technology?
a. SAS
b. Parallel SCSI
c. EIDE
d. IDE
Answer: atechtarget+1 - Are expanders required for every SAS deployment?
a. No
b. Yes
c. Only in SAS-1
d. Only for SATA
Answer: awikipedia - A SAS device can act as which type?
a. Target, initiator, or both
b. Only target
c. Only controller
d. None
Answer: awikipedia - Which encoding supports longer cables and better integrity in SAS?
a. 8b/10b
b. Manchester
c. 10b/12b
d. OOK
Answer: awikipedia - What is the maximum speed per lane for SAS-4?
a. 6 Gb/s
b. 12 Gb/s
c. 22.5 Gb/s
d. 40 Gb/s
Answer: cwikipedia - How is data delivered between components in SAS?
a. Through service delivery subsystem
b. Via internet
c. Over wireless
d. Through memory bus
Answer: awikipedia - SAS controllers can support which redundancy feature?
a. Path redundancy
b. Wireless failover
c. Memory cache only
d. No redundancy
Answer: atechtarget+1 - A logical unit number (LUN) in SAS is used for?
a. Identifying partitions or devices
b. Assigning IP addresses
c. Device cooling
d. Voltage conversion
Answer: abrainscape+1 - Which is false about SAS?
a. SAS and SATA devices can’t be used together
b. SAS is point-to-point
c. Expanders are for multiple connections
d. None of the above
Answer: asanfoundry+2 - What layer manages link initialization and training in SAS?
a. PHY
b. Application
c. Data
d. RAID
Answer: awikipedia - Which SAS protocol is dedicated to storage management?
a. SMP
b. SNMP
c. SSP
d. SMTP
Answer: awikipedia - The SCSI Trade Association is responsible for?
a. Promoting SAS
b. Managing servers
c. Certifying controllers
d. Deleting data
Answer: awikipedia - What determines SAS device addressing scheme?
a. World Wide Name (WWN)
b. IP address
c. MAC address
d. Port mapping
Answer: awikipedia - Dual-porting in SAS drives enables?
a. High-availability/path redundancy
b. Extra voltage
c. Higher sector size
d. Wireless access
Answer: aseagate+1 - A key advantage of SAS for server environments is?
a. High scalability
b. No power supply
c. Cheap plastic housing
d. Built-in antivirus
Answer: aseagate+2
- https://www.sanfoundry.com/sas-questions-answers/
- https://www.scribd.com/document/381241178/This-Set-of-Multiple-Choice-SAN-Storage-Questions-and-Answers-Focuses-on-Storage-Virtualization
- https://www.seagate.com/support/kb/serial-attached-scsi-frequently-asked-questions-210751en/
- https://www.brainscape.com/flashcards/comptia-a-exam-220-1101-storage-devices-14425981/packs/21463824
- https://www.techtarget.com/searchstorage/definition/serial-attached-SCSI
- https://en.wikipedia.org/wiki/Serial_Attached_SCSI
- https://dogemicrosystems.ca/pub/Sun/System_Handbook/Sun_syshbk_V3.4/collections/TECHNICALINSTRUCTIONSURE/1-71-1009889.1-1.html
- https://www.sanfoundry.com/sas-interview-questions/
- https://www.coursehero.com/file/80235366/UGRD-IT6302-Integrative-Programming-and-Technology-15Identificationsdocx/
- https://www.finalroundai.com/blog/sas-interview-questions
- https://www.scribd.com/document/112426076/Introduction-to-Serial-Attached-SCSI-SAS-and-Serial-ATA-SATA
- https://trainings.internshala.com/blog/sas-interview-questions-and-answers/
- https://wayground.com/admin/quiz/63c6de2fc8dde1001df643ee/ec-3-ab
- https://www.simplilearn.com/sas-interview-questions-article
- https://data-flair.training/blogs/sas-programming-quiz/
- https://www.listendata.com/2013/09/sas-interview-questions.html
- https://www.listendata.com/2014/05/sas-base-certification-questions-with.html
- https://www.interviewbit.com/sas-interview-questions/
- https://www.ibm.com/docs/en/power10?topic=cables-planning-serial-attached-scsi
- https://www.adaface.com/blog/sas-interview-questions/