MCQs for ICT OFFICER II – Scanner
Section
A: Scanner Operations & Imaging
- Which
of the following best describes the role of the Review Workstation (RIW)
in container scanning?
A.
Generates X-ray images of containers
B.
Receives, reviews, and analyzes radioscopic
images
C.
Verifies customs clearance fees
D.
Automates manifest data entry
Answer:
B
- When
a scanned container number does not match the manifest, the ICT Officer II
should:
A)
Approve the container for clearance
B)
Ignore and continue to next task
C)
Flag and report the mismatch for further
verification
D)
Manually change the manifest number
Answer:
C
- Which
radiographic property is most crucial for detecting high-density concealed
goods in containers?
A)
Penetration depth
B)
Image color contrast
C)
Image brightness
D)
File size of the image
Answer:
A
- In
container scanning, why is layering important when analyzing images?
A.
To identify hidden compartments
B.
To enhance invoice matching
C.
To reduce data storage size
D.
To simplify customs coding
Answer:
A
- If
the scanner produces blurred images, what is the immediate action?
A)
Delete the scan and release container
B)
Re-scan the container and report scanner
performance
C)
Approve based on partial image
D)
Request importer to provide extra declaration
Answer:
B
- Which
spectrum is commonly used in container X-ray scanners?
A)
Infrared
B)
Gamma rays
C)
Visible light
D)
Ultraviolet
Answer:
B
- In
dual-energy X-ray scanning, what advantage does it provide?
A)
Faster scanning speed
B)
Differentiation of organic and inorganic
materials
C)
Better color enhancement
D)
Lower electricity usage
Answer:
B
- What
is the significance of an alarm threshold in container scanners?
A)
Triggers when declared goods exceed invoice
value
B)
Indicates density anomalies in the scanned
image
C)
Alerts when container weight mismatches
manifest
D)
Notifies officer of network downtime
Answer:
B
- Which
part of the scanning system is most prone to calibration errors?
A)
Conveyor system
B)
Detector array
C)
Container numbering system
D)
Manifest entry software
Answer:
B
- Which
standard is commonly applied for safety in operating X-ray scanning
systems?
A)
ISO 27001
B)
IAEA Safety Standards
C)
WCO Data Model
D)
GDPR
Answer:
B
Section B: Customs Documentation
- Which
of the following documents contains the consignee and consignor details?
A)
TANSAD
B)
Bill of Lading
C)
Invoice
D)
Packing List
Answer:
B
- A
Packing List primarily helps customs officers to:
A)
Calculate import duty directly
B)
Verify the type, quantity, and packaging of
items
C)
Authenticate ownership of goods
D)
Approve country of origin
Answer:
B
- The
TANSAD form in Tanzania customs clearance is mainly used for:
A)
Insurance declaration
B)
Tax payment tracking
C)
Goods declaration for customs entry
D)
Transport permit
Answer:
C
- If
the invoice value does not match the declared goods in the manifest, the
officer should:
A)
Report suspicion and recommend further
inspection
B)
Accept invoice value as final
C)
Ignore since invoice is not mandatory
D)
Request the exporter to submit new manifest
Answer:
A
- Which
combination of documents is mandatory before issuing a verdict on a
container?
A)
Invoice + Packing List
B)
Bill of Lading + Invoice
C)
TANSAD + Bill of Lading + Invoice + Packing
List
D)
Only Manifest
Answer:
C
- Which
document proves ownership and serves as a receipt for shipped goods?
A)
Packing List
B)
Bill of Lading
C)
TANSAD
D)
Commercial Invoice
Answer:
B
- A
discrepancy between the packing list and the invoice suggests:
A)
Over-declaration or under-declaration of goods
B)
Scanner malfunction
C)
Incorrect container weight
D)
Invalid Bill of Lading
Answer:
A
- What
is the main difference between a manifest and a Bill of Lading?
A)
Manifest is for port authorities; Bill of
Lading is for cargo owners
B)
Bill of Lading lists taxes; Manifest shows
invoice values
C)
Manifest is optional, Bill of Lading is not
D)
They are identical in function
Answer:
A
- Which
of the following is least likely to be verified directly from scanning
images?
Container number
Gross weight of cargo
Packaging material
Hidden compartments
Answer:
B
- If
the TANSAD is missing in attached documents, the container should be:
A)
Cleared with caution
B)
Immediately flagged for further action
C)
Approved if packing list matches
D)
Released based on invoice
Answer:
B
Section C: ICT Technical Skills
- Which
database system is most suitable for storing large volumes of scanned
image metadata?
A)
MySQL
B)
MongoDB
C)
SQLite
D)
MS Access
Answer:
B
- A
secure connection between the scanner and the RIW should ideally use:
A)
HTTP
B)
FTP
C)
HTTPS or VPN
D)
Telnet
Answer:
C
- Which
RAID level is best for balancing speed and redundancy for scan image
storage?
A)
RAID 0
B)
RAID 1
C)
RAID 5
D)
RAID 10
Answer:
D
- What
is the primary advantage of using a redundant power supply in scanner
servers?
A)
Reduces internet bandwidth
B)
Prevents data duplication
C)
Ensures continuous system availability
D)
Speeds up container scanning
Answer:
C
- Firewalls
in scanner systems are crucial because they:
A)
Monitor physical entry of containers
B)
Block unauthorized access to scanning data
C)
Repair corrupted scan images
D)
Encrypt customs invoices
Answer:
B
- Which
protocol ensures secure transfer of scanning reports between servers?
A)
SMTP
B)
SFTP
C)
SNMP
D)
POP3
Answer:
B
- Which
cybersecurity risk is most relevant for scanner systems connected to
customs networks?
A)
SQL Injection
B)
Distributed Denial of Service (DDoS)
C)
Cross-site scripting (XSS)
D)
Phishing
Answer:
B
- Which
backup strategy is best for daily scan report retention?
A)
Full backup weekly, incremental daily
B)
Differential backup hourly
C)
Full backup only once a year
D)
Backup only after incidents
Answer:
A
- If
a scanned image database becomes corrupted, the best recovery option is:
A)
Restore from last known backup
B)
Delete all files and restart
C)
Request importers to resubmit documents
D)
Manually redraw images
Answer:
A
- Which
standard specifically addresses information security management in ICT
systems?
A)
ISO 9001
B)
ISO 27001
C)
ISO 14001
D)
ISO 31000
Answer:
B
Section D: Analytical Decision-Making
- If
a container image shows extra unreported compartments, the officer should:
A)
Clear container with warning
B)
Mark as “Suspect” and recommend physical
inspection
C)
Contact importer for clarification immediately
D)
Approve after consulting supervisor
Answer:
B
- Which
factor is most reliable when deciding conformity of a scanned container?
A)
Number of documents attached
B)
Alignment of image with declaration data
C)
Importer’s reputation
D)
Country of origin
Answer:
B
- If
two different invoices are presented for the same container, the officer
should:
A)
Approve higher-value invoice
B)
Reject both and recommend investigation
C)
Choose the latest invoice date
D)
Approve based on Packing List
Answer:
B
- What
is the correct order in verifying a container declaration?
A)
Packing List → Invoice → TANSAD → Bill of
Lading
B)
Invoice → TANSAD → Packing List → Bill of
Lading
C)
Bill of Lading → Invoice → Packing List →
TANSAD
D)
TANSAD → Bill of Lading → Invoice → Packing
List
Answer:
D
- If
the scanner detects radiation leakage, the officer must:
A)
Stop operation and report immediately
B)
Continue scanning with caution
C)
Switch to manual verification only
D)
Adjust image brightness
Answer:
A
- Which
statistical method can help in detecting unusual trade patterns from scan
data?
A)
Regression analysis
B)
Standard deviation checks
C)
Cluster analysis
D)
All of the above
Answer:
D
- When
comparing scan images with declarations, the officer is applying which
type of control?
A)
Preventive
B)
Detective
C)
Corrective
D)
Compensating
Answer:
B
- Which
situation most strongly suggests smuggling?
A)
Invoice is under-declared but container is
empty
B)
Image shows concealed dense areas not declared
in manifest
C)
Packing list matches invoice exactly
D)
Container is from a trusted company
Answer:
B
- If
goods conform to declarations, the officer’s verdict should be:
A)
“Suspect”
B)
“Approved/Conform”
C)
“Pending”
D)
“Rejected”
Answer:
B
- In
decision-making, bias can be reduced by:
A)
Relying solely on importer history
B)
Using standardized verification checklists
C)
Ignoring anomalies
D)
Consulting clearing agents directly
Answer:
B
Section E: Reporting & Compliance
- Reports
of scanned containers should include:
A)
Container number, decision, comments, and
document verification results
B)
Only image file and container ID
C)
Invoice value and importer name only
D)
Daily scanner uptime hours
Answer:
A
- Which
software tool is most appropriate for compiling structured scanning
reports?
A)
Photoshop
B)
Microsoft Excel/Power BI
C)
VLC Media Player
D)
AutoCAD
Answer:
B
- Which
legal principle requires officers to keep scan records for possible
audits?
A)
Confidentiality
B)
Accountability and traceability
C)
Encryption
D)
Transparency
Answer:
B
- Which
international body sets best practices for container scanning in trade
facilitation?
A)
WTO
B)
UNDP
C)
ICAO
D)
WCO
Answer:
D
- Reports
showing mismatched declarations must be forwarded to:
A)
Clearing agent directly
B)
Customs investigation/anti-smuggling unit
C)
Shipping company
D)
Importer’s bank
Answer:
B
- Which
reporting metric best measures scanning efficiency?
A)
Average time per container scanned
B)
Number of officers on duty
C)
Scanner electricity usage
D)
Importer satisfaction rate
Answer:
A
- Which
principle of record management ensures that scan reports cannot be altered
after submission?
A)
Confidentiality
B)
Integrity
C)
Availability
D)
Authenticity
Answer:
B
- Which
of the following should be avoided when writing scanning reports?
A)
Clear verdicts
B)
Subjective opinions without evidence
C)
Accurate references to documents
D)
Recommendations for further checks
Answer:
B
- In
auditing scan reports, which issue would be most critical?
A)
Missing officer’s digital signature
B)
Use of Excel instead of database
C)
Reports written in English instead of Swahili
D)
Formatting errors
Answer:
A
- Which
compliance approach ensures continuous improvement in scanning operations?
A)
ISO 9001 Quality Management
B)
Random decisions without audit
C)
Avoiding documentation for speed
D)
Ignoring anomalies in reports
Answer:
A
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