WorksheetsLO1 Full Quiz 60
Total questions: 62
Worksheet time: 31mins
Which input device is MOST appropriate for rapid entry of numeric data at a supermarket till?
Graphics tablet
Flatbed scanner
Numeric keypad
Joystick
A warehouse uses handheld terminals to scan barcodes over 30 metres from the access point. Which onboard comms is MOST reliable?
NFC
Wi-Fi with enterprise APs
Bluetooth Classic
Infrared (IrDA)
In a soundproof booth, which voice input limitation is MOST mitigated?
Background noise interfering with recognition
User accent variability
Homophones (e.g., 'there'/'their')
Domain vocabulary gaps
A membrane keyboard is chosen for a factory floor. What is the PRIMARY benefit?
Higher actuation precision
Resistant to dust and liquids
Lower cost per unit
More tactile feedback
For a graphic designer doing freehand illustration, which input device is MOST suitable?
Numeric keypad
Standard mouse
Trackball
Graphics tablet with pressure sensitivity
Which output device characteristic MOST impacts colour-critical print proofing?
Display colour gamut and calibration
Display refresh rate
Speaker frequency response
Printer tray capacity
A video-conferencing room aims to reduce echo and improve mic intelligibility. Which choice targets the LIMITATION of voice input?
Increase network bandwidth only
Add a subwoofer
Directional microphones with acoustic treatment
Disable noise suppression
Which communications device provides cellular connectivity for a tablet without tethering?
Bluetooth radio only
NFC chip
Wi-Fi radio only
Integrated LTE/5G modem
The processor feature that MOST improves performance in heavily threaded workloads is:
Hyper-threading
Overclocking
Integrated graphics
Cache size
Which of the following is a typical advantage of modern CPUs?
Higher core count
Deeper L1 cache only
Single-channel memory
Lower TDP regardless of cores
On a motherboard, which slot is typically used for modern graphics cards?
PCIe x16
PCI 32-bit
ISA
AGP
Which storage interface supports hot-swap in enterprise servers and is serial by design?
SAS
Parallel SCSI
FireWire 400
PATA/IDE
Which storage technology has NO moving parts and offers the lowest latency for random reads (consumer context)?
Optical Blu-ray
Tape drive (LTO)
SATA HDD (7200 RPM)
NVMe SSD
Which port is BEST suited for daisy-chaining professional audio/video devices (legacy)?
PS/2
FireWire (IEEE 1394)
USB 2.0
VGA
The memory type that stores firmware, persists without power, and is commonly updated via flashing is:
RAM
ROM
Flash memory
Cache
A workstation requires high sustained throughput to a RAID array. Which expansion card is MOST appropriate?
Capture card
Storage controller (RAID HBA)
Sound card
Wi-Fi NIC
Which statement about power supplies is MOST accurate?
Insufficient wattage or failing rails can cause random reboots under load
Higher wattage always reduces electricity bills
All PSUs provide identical connector layouts
PSUs have no effect on system stability
Which port provides the highest typical throughput for external NVMe SSDs today?
USB4/Thunderbolt
eSATA
USB 2.0
Serial
Cache memory primarily improves performance by:
Increasing disk capacity
Reducing average memory access latency
Replacing main memory
Improving GPU ray-tracing
Which of the following is the correct way to install memory modules for optimal performance?
Mixed ECC with non-ECC
Randomly placed modules
Single DIMM of any size
Matched pair DIMMs in the correct slots
Which connector is purpose-built for high-speed storage devices inside servers and SANs?
Fibre Channel
DisplayPort
DB-25 parallel
RJ-11
Which system class is MOST suited to extremely high I/O throughput for thousands of concurrent users?
Smartphone
Embedded microcontroller
Quantum annealer
Mainframe
A field engineer needs keyboard-based data entry, LTE, and pen support when travelling. Which device is MOST appropriate?
Tablet/hybrid with detachable keyboard and LTE
Mainframe terminal
Desktop tower with dual monitors
Single-board microcontroller
Which is a PRIMARY benefit of a desktop workstation compared to a laptop for 3D rendering?
It always consumes less power
Better thermals allow higher sustained performance
Which limitation MOST applies to mainframes?
Limited reliability
Lack of security models
Cannot perform batch processing
High purchase and maintenance cost
Which description BEST fits an embedded IoT system?
Dedicated function, constrained resources, often real-time
General-purpose OS with expansive resources
Quantum error-correction computer
Multi-user timesharing host
Which is a realistic near-term application area for quantum computers?
Web browsing
Certain optimisation and cryptographic problems
General office productivity tasks
Word processing speedups
A smartphone’s integrated sensors MOST directly enable which benefit for navigation apps?
Increased printer throughput
Seamless GPS/IMU aided positioning
Lossless audio recording only
Lower screen latency only
Which statement about servers is MOST accurate?
They are always physically smaller than desktops
They prioritise reliability and scalability (e.g., ECC RAM, redundant PSUs)
They never use RAID
Which medium is immune to electromagnetic interference and supports very high bandwidth over long distances?
Microwave only
Unshielded copper
Infrared only
Fibre optic
For a remote farm with no wired infrastructure, which option provides the most practical broadband backhaul?
Satellite link
Short-range Bluetooth
IrDA
Twisted-pair copper
Which wireless technology is MOST appropriate for short-range device pairing (headphones/phones)?
Microwave point-to-point
GSM
Bluetooth
Laser link
Which Wi-Fi configuration characteristic MOST increases throughput in dense environments?
Using 5 GHz/6 GHz channels with proper channel planning
Narrowing channels to 5 MHz only
Using WEP security
Maximising transmit power indiscriminately
33. GSM/3G/4G evolution is BEST described as:
A transition from analog to digital and then to high-speed data networks.
A move from high-speed data to analog voice communication.
A shift from wireless to wired communication technologies.
A reduction in network speed and capacity over time.
Which is the PRIMARY drawback of satellite internet for interactive gaming?
Demand for copper cabling
No coverage at mid-latitudes
Low spectral efficiency
High latency due to long propagation distance
A campus requires a high-throughput, line-of-sight link between buildings 2 km apart. Which is MOST suitable?
Bluetooth
Infrared TV remote
DSL
Microwave point-to-point bridge
Laser links are occasionally used for:
Undersea cables
Short-range, high-speed, line-of-sight connections with clear air paths
Mobile telephony backhaul only
Subterranean trunking
Which device reduces collisions by forwarding frames only to the destination port (MAC-based)?
Switch
Modem
Repeater
Which of the following is true about later generations of mobile networks?
Generations are backward-incompatible by definition
They only change SIM card shape
They reduce cell density
Later generations increase spectral efficiency and data rates
Which device connects different IP networks and performs routing decisions?
Hub
Router
Switch
WAP
Which device converts analogue signals from an ISP to digital for customer equipment?
Repeater
Firewall
Switch
Modem
Which device provides wireless connectivity to a wired LAN segment?
Hub
Modem
Wireless access point (WAP)
Tape library
A home 'all-in-one' that combines router, switch, modem, and WAP is BEST described as:
Combined/hybrid device
Media converter only
Firewall
Bridge only
Which device strengthens weak signals without changing content or addressing?
Repeater
IDS/IPS
Router
Switch
A PC intermittently reboots under GPU load. Which is the MOST likely hardware cause?
Out-of-date printer driver
Wrong desktop wallpaper
Full HDD
Under-spec or failing PSU rails
Continuous beeps at POST typically indicate:
Slow internet connection
Logged-in as guest
Corrupt user profile only
Hardware fault detected by BIOS/UEFI
Which built-in Windows tool scans and repairs file system errors on a disk?
Task Manager
CHKDSK
Notepad
Disk Cleanup
Random application crashes with different error codes across runs MOST strongly suggest:
Incorrect theme
Outdated icon cache
Full recycle bin
Faulty RAM
The FIRST step when a desktop won’t power on is to:
Reinstall the OS
Flash the BIOS immediately
Replace the CPU
Why keep fault logs and documentation?
They slow teams down
They replace manuals entirely
They eliminate the need for testing
They provide traceability and accelerate future diagnosis
How many bits are there in 3 bytes and 2 nibbles?
24 bits
28 bits
20 bits
32 bits
Select the CORRECT pairing: 1 kilobyte (kB) equals...
1000 bits
1024 bits
1024 bytes (binary)
1000 bytes (metric)
Select the CORRECT pairing: 1 kibibyte (KiB) equals...
1024 bytes (binary)
1000 bytes (metric)
1024 bits
1000 bits
Which is larger?
10 MB > 10 MiB
They are identical
A nibble is defined as:
16 bits
8 bits
4 bits
2 bytes
Approximate size comparison: 1 GiB equals...
≈1.074 GB (larger than 1 GB)
≈0.931 GB (smaller)
Exactly 1 GB
Exactly 1000 MB
Convert 1101011₂ to decimal.
123
107
219
91
Convert 0x7B to binary (8-bit).
01110011
01111011
01111101
01111011
Convert 156₁₀ to hexadecimal.
(a)
Convert 10010110₂ to decimal.
166
150
128
178
Convert 255₁₀ to binary (8-bit).
11111111
11110000
11111110
00000000
Convert 10101101₂ to hexadecimal.
AD
9D
B5
A9
