MCQs

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1. What does iSCSI stand for in networking?
   a. Internet Small Computer Systems Interface
   b. Integrated SCSI
   c. Internet Service Channel Interface
   d. Internal SCSI Channel
   Answer: asanfoundry+1
2. iSCSI is primarily used to map which protocol over TCP/IP?
   a. SCSI
   b. ATA
   c. SATA
   d. RAID
   Answer: aeginnovations+1
3. iSCSI enables what level of storage access?
   a. Block level
   b. File level
   c. Object level
   d. Directory level
   Answer: ayeahhub+1
4. Which of the following statements about iSCSI names is correct?
   a. They are globally unique and permanent
   b. They are unique within a subnet only
   c. They are temporary
   d. They are randomly generated for every session
   Answer: atkietwarana+1
5. An iSCSI initiator acts as which of the following?
   a. The client device that sends SCSI commands
   b. The storage server
   c. The switch
   d. The LUN
   Answer: alenovo+1
6. The device or service that receives and processes SCSI commands in iSCSI is known as the:
   a. Target
   b. Initiator
   c. Host Bus Adapter
   d. Volume Group
   Answer: alenovo+1
7. In iSCSI, the actual data storage resources presented to initiators are called:
   a. LUNs (Logical Unit Numbers)
   b. Blocks
   c. Frames
   d. VLANs
   Answer: aeginnovations+1
8. Which network protocol does iSCSI use for transport?
   a. TCP/IP
   b. UDP
   c. Fibre Channel
   d. HTTP
   Answer: asanfoundry+1
9. What is the default port number used by iSCSI?
   a. 3260
   b. 8080
   c. 443
   d. 80
   Answer: aredhat+1
10. Which authentication protocol is most commonly used in iSCSI for authentication?
    a. CHAP
    b. RADIUS
    c. NTLM
    d. OAuth
    Answer: alenovo
11. The process of discovering available iSCSI targets is called:
    a. Discovery session
    b. Scanning
    c. Polling
    d. Browsing
    Answer: asanfoundry+1
12. iSCSI can be used effectively in which environment to provide shared storage?
    a. Virtualized environments
    b. Only physical servers
    c. Only home networks
    d. Only mainframes
    Answer: alenovo
13. Which of the following is a critical security consideration when deploying iSCSI?
    a. Network segmentation and encryption
    b. Open all ports on the firewall
    c. Ignore strong passwords
    d. Disable authentication
    Answer: ayeahhub+1
14. Which of these is NOT a valid iSCSI name format?
    a. iqn.2001-04.com.example:disk1
    b. eui.1234098769785341
    c. iscsi.1234:random
    d. iqn.2010-12.com.example:target
    Answer: ctkietwarana+1
15. What is the benefit of using jumbo frames with iSCSI?
    a. Higher throughput
    b. Higher latency
    c. Lower storage capacity
    d. Decreased reliability
    Answer: ayeahhub
16. In iSCSI, the CHAP protocol operates to:
    a. Authenticate both initiator and target
    b. Encrypt data packets
    c. Compress the data
    d. Assign IP addresses
    Answer: alenovo
17. Which iSCSI feature enables multiple network paths between initiator and target for redundancy?
    a. Multipathing
    b. Spanning Tree Protocol
    c. Port Mirroring
    d. VLAN Trunking
    Answer: aeginnovations
18. A typical use case for iSCSI in enterprise storage is:
    a. Centralized and scalable SAN over IP
    b. Home cloud backup
    c. Printing services
    d. Video streaming
    Answer: ayeahhub+1
19. What happens when CHAP is configured for iSCSI?
    a. Identity of initiator/target is verified using a shared secret
    b. Network traffic is compressed
    c. Traffic is entirely unencrypted
    d. All iSCSI devices are automatically discovered
    Answer: alenovo
20. Which of the following is required to set up an iSCSI target on Linux?
    a. scsi-target-utils
    b. telnet-server
    c. samba-utils
    d. httpd
    Answer: aredhat
21. In iSCSI, the process of connecting an initiator to a target is typically called:
    a. Login process
    b. Mounting process
    c. Joining process
    d. Formatting
    Answer: asqlshack+1
22. For secure access, organizations often use which isolation method for iSCSI network traffic?
    a. Dedicated VLANs or physical separation
    b. Shared with production traffic
    c. Open wireless networks
    d. Internet-facing IPs
    Answer: alenovo
23. Which is a disadvantage of iSCSI compared to Fibre Channel?
    a. Sensitive to network latency
    b. Requires new cabling
    c. Cannot use Ethernet
    d. Only works on Windows
    Answer: ayeahhub
24. The standardized naming format for iSCSI qualified names starts with:
    a. iqn.
    b. qgn.
    c. iscsi.
    d. sfp.
    Answer: atkietwarana+1
25. What is the main difference between iSCSI and NAS?
    a. iSCSI provides block-level; NAS provides file-level access
    b. iSCSI uses HTTP; NAS uses TCP/IP
    c. iSCSI is less secure
    d. NAS requires dedicated switches
    Answer: ayeahhub+1
26. iSCSI targets can present how many LUNs to an initiator?
    a. Multiple
    b. Only one
    c. None
    d. Unlimited only in theory
    Answer: aeginnovations+1
27. Which protocol specification defines iSCSI standards?
    a. RFC 3720
    b. RFC 1918
    c. IEEE 802.3
    d. RFC 2616
    Answer: aeginnovations
28. Which Linux file typically lists iSCSI target definitions?
    a. /etc/tgt/targets.conf
    b. /etc/iscsi/init.conf
    c. /etc/samba/smb.conf
    d. /etc/httpd/targets.conf
    Answer: aredhat
29. iSCSI can be implemented using which type of initiator for flexibility?
    a. Software or hardware
    b. Only hardware
    c. Only software
    d. Only virtual
    Answer: alenovo
30. What is the primary requirement for hosts to use iSCSI?
    a. Network connectivity and initiator software
    b. Dedicated storage racks
    c. SCSI tape drives
    d. Fibre Channel HBA
    Answer: asqlshack+1
31. An iSCSI “session” connects which components?
    a. One initiator to one or more targets
    b. One target to many switches
    c. Initiator to network printer
    d. Multiple clients to a single tape drive
    Answer: alenovo
32. When should IPsec be used in iSCSI environments?
    a. When encrypting data in transit is required
    b. For faster packet transmission
    c. For device discovery only
    d. Never required
    Answer: alenovo
33. Performance of iSCSI most depends on:
    a. IP network quality and bandwidth
    b. CPU speed
    c. DHCP configuration
    d. Number of USB devices
    Answer: ayeahhub
34. For iSCSI, the process of mapping storage devices for network use is called:
    a. LUN mapping
    b. Drive forging
    c. Device mirroring
    d. Data masking
    Answer: aeginnovations+1
35. The iSCSI target presents storage to the initiator in the form of:
    a. Logical volumes (LUNs)
    b. Network shares
    c. File folders
    d. IP addresses only
    Answer: alenovo
36. The iSCSI protocol is mainly used for:
    a. Storage Area Network (SAN) over IP
    b. Local file sharing
    c. Wireless networking only
    d. Video conferencing
    Answer: ayeahhub+1
37. For redundancy and continuous access in iSCSI, organizations use:
    a. Multipathing and failover
    b. Single-link setup
    c. Web-based replication only
    d. Fiber Channel over Ethernet exclusively
    Answer: aeginnovations+1
38. The advantage of software-based iSCSI initiators is:
    a. No special hardware required
    b. Requires InfiniBand adapters
    c. Limited to Linux only
    d. Runs only on switches
    Answer: alenovo
39. The purpose of LUN masking in an iSCSI environment is to:
    a. Prevent unauthorized initiator access
    b. Increase throughput
    c. Assign IP addresses
    d. Enable multicast
    Answer: alenovo
40. The term “SendTargets” in iSCSI refers to:
    a. A discovery command to list available targets
    b. Data integrity command
    c. Multicast broadcast
    d. Checksum calculation
    Answer: asanfoundry
41. On Windows, the built-in tool for iSCSI client configuration is:
    a. iSCSI Initiator
    b. DiskPart
    c. Device Manager
    d. Storage Spaces Direct
    Answer: alenovo
42. The main reason for using VLANs for iSCSI is to:
    a. Isolate storage traffic from general LAN
    b. Reduce disk access time
    c. Enhance printer sharing
    d. Increase default IP address space
    Answer: ayeahhub+1
43. In iSCSI, multipath I/O provides:
    a. Load balancing and failover for storage traffic
    b. Lower throughput
    c. Only admin access
    d. Disables authentication
    Answer: ayeahhub
44. The recommended MTU size for iSCSI jumbo frames is:
    a. 9000 bytes
    b. 512 bytes
    c. 576 bytes
    d. 12000 bytes
    Answer: ayeahhub
45. iSCSI data integrity can be improved with:
    a. Header and data digests
    b. File checksums only
    c. Compression
    d. Spanning Tree Protocol
    Answer: aeginnovations
46. Which operating systems support iSCSI initiator functionality?
    a. Windows, Linux, VMware ESXi
    b. Windows only
    c. Mainframes only
    d. Android only
    Answer: alenovo
47. Which utility would be used to check active iSCSI sessions on a Linux system?
    a. iscsiadm
    b. ifconfig
    c. fdisk
    d. nslookup
    Answer: aredhat
48. Combining iSCSI with RAID technology provides:
    a. Block-level storage with redundancy
    b. Only file-level access
    c. Higher network latency
    d. Better tape drive management
    Answer: ayeahhub+1
49. The first step to connect an initiator to a target in iSCSI is:
    a. Discover available targets
    b. Format the volume
    c. Encrypt the disk
    d. Install DHCP
    Answer: asqlshack+1
50. What is a practical benefit of iSCSI for small or medium-sized businesses?
    a. Lower cost storage area networking via IP
    b. Requires proprietary hardware
    c. Not scalable
    d. Only for large enterprises
    Answer: ayeahhub+1

1. https://www.sanfoundry.com/iscsi-questions-answers/
2. https://www.lenovo.com/in/en/glossary/what-is-iscsi/
3. https://www.eginnovations.com/documentation/NetApp-Cluster/ISCSI-Performance-Test.htm
4. https://www.yeahhub.com/comparing-nfs-and-iscsi-key-differences-explained/
5. https://tkietwarana.ac.in/upload/dptcomp/cse%20information/MCQ/Sem-VI%20Storage%20Networks%20(MCQ).pdf
6. https://wayground.com/admin/quiz/6675b1d6a7dd4f519994f691/7skill-quiz-on-iscsi-and-nfs-storage
7. https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/storage_administration_guide/ch-iscsi
8. https://www.sqlshack.com/iscsi-iscsi-initiator-quorum-configuration-and-sql-server-cluster-installation/
9. https://www.sanfoundry.com/iscsi-protocol-interview-questions/
10. https://www.scribd.com/document/381241178/This-Set-of-Multiple-Choice-SAN-Storage-Questions-and-Answers-Focuses-on-Storage-Virtualization
11. https://www.examveda.com/networking/practice-mcq-question-on-networking-basics/
12. https://www.indiabix.com/networking/networking-basics/
13. https://www.ccbp.in/blog/articles/computer-network-mcq
14. https://www.scribd.com/document/272393481/SAN-MCQs
15. https://www.sanfoundry.com/cyber-security-questions-answers-security-protocols-1/
16. https://www.grabstudy.com/Technical-MCQs/Networking-Basics.php
17. https://www.examtray.com/networking/computer-networking-types-basics-interview-mcq-questions-answers
18. https://www.sanfoundry.com/scsi-questions-answers/
19. https://www.scribd.com/document/256878088/ISCSI-Guide
20. https://bcetodisha.ac.in/elearning/content/mca_uploads/2nd/Computer-Network-MCQ.pdf