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WorksheetsMobile Devices and Networking - Part 1
Total questions: 150
Worksheet time: 1hrs 15mins
Which memory form factor is most common in modern laptops?
DIMM
SO-DIMM
RIMM
SIMM
A laptop screen shows ghosting and slow response times. Which panel type is most likely installed?
OLED
IPS
TN
VA
Which slot is typically used for NVMe SSDs in laptops?
mSATA
M.2 (PCIe)
Mini-PCIe
SATA Express
A user needs to connect two external 4K displays and multiple peripherals with a single cable. Which port best fits?
USB 2.0 Type-A
Thunderbolt 3/4 (USB-C)
Micro-USB
VGA
A cracked smartphone has touch input that no longer registers, but the image looks fine. Which part needs replacing?
Battery
Digitizer
System board
Backlight inverter
Which wireless technology is best for short-range tap-to-pay?
Bluetooth
NFC
Infrared
Wi-Fi Direct
Tethering a laptop to a phone to share internet is called:
Hotspot
PoE
AirDrop
Sidecar
A user wants higher-capacity removable storage for a phone that supports it. Which option is appropriate?
SIM
microSD
eSIM
Mini-USB
A tablet screen automatically rotates. Which sensor enables this?
Gyroscope/accelerometer
Proximity sensor
Magnetometer only
Ambient light sensor
Which laptop component is commonly user-replaceable to extend device life?
CPU (soldered BGA)
GPU (on-die)
SO-DIMM RAM (when socketed)
Embedded storage on all ultrabooks
A user’s laptop trackpad stops clicking after a battery swells. What’s the safest action?
Puncture the battery to release gas
Continue using until drained
Power down and replace the battery safely
Bend the trackpad back into place
A stylus with pressure sensitivity requires what feature?
Passive capacitive input
Active digitizer
Infrared emitter
Only a resistive touch layer
Which connection is most appropriate for docking a laptop to legacy VGA/USB-A-only monitors/peripherals?
USB-C dock with appropriate outputs
Lightning cable
S/PDIF
RS-232 null modem
eSIM primarily replaces which component?
microSD card
Physical SIM card
NFC chip
IMEI
Which is not a likely benefit of a laptop docking station over a port replicator?
Additional dedicated GPU
More ports and power delivery
Better cable management
One-cable connection
On iOS/Android, which feature separates work and personal data on BYOD?
Guest account
Work Profile / User Enrollment
Developer mode
Jailbreak/root
Which wireless standard operates only in 5 GHz (legacy spec)?
802.11n
802.11ac
802.11ax
802.11b
Laptop RAM is upgraded but the system reports the old capacity. First step?
Replace motherboard
Reseat modules and check slot population rules
Reinstall the OS
Clear CMOS by shorting random pins
Which device forwards traffic between networks based on IP?
Hub
Switch
Router
Repeater
Which IP address indicates APIPA on Windows?
10.0.0.5
169.254.22.8
172.16.1.10
192.168.50.20
Which cable type is required for 10GBASE-T up to 100 meters?
Cat 5e
Cat 6
Cat 6a
Cat 3
Which fiber connector uses a small form factor, push-pull design with a latch?
ST
SC
LC
BNC
In 2.4 GHz Wi-Fi, which non-overlapping channels should you select (20 MHz)?
1, 6, 11
2, 5, 8
3, 6, 9
4, 7, 10
Which security protocol is preferred for SOHO Wi‑Fi today (if supported)?
WEP
WPA
WPA2‑AES
WPA3‑Personal
You can ping 1.1.1.1 but can’t resolve example.com. What’s likely broken?
NIC
DNS
Default gateway
Switch port
Which port is used for RDP?
22
23
3389
443
A SOHO router with guest network should use which best practice?
Same VLAN as main LAN
Open authentication
Client isolation and separate VLAN
Disable DHCP
A user needs to reach internal hosts by name. Which server/service is required?
DHCP
DNS
NTP
Syslog
Which WAN technology uses phone lines with a DSL modem?
Cable
Fiber GPON
xDSL
Satellite
Which IPv6 address type is link‑local?
2001:db8::/32
fe80::/10
ff00::/8
fc00::/7
Which term describes translating private IPs to a public IP at the edge?
PAT/NAT
VLAN
STP
QoS
What does PoE allow?
VLAN tagging
Power over Ethernet to endpoints
Higher Wi‑Fi throughput
VPN tunneling
Which tool verifies cable continuity and pair mapping?
Loopback plug
Tone generator and probe
Cable tester
OTDR only
A user on Wi‑Fi has weak signal in a far room. Which is the best fix?
Change SSID name
Add a properly placed AP/mesh node
Disable WPA3
Lower the transmit power
Which DNS record type maps a name to an IPv4 address?
AAAA
CNAME
MX
A
Your DHCP scope is exhausted. What symptom will clients show?
APIPA addresses and no network access
Duplicate IPs
Full internet but no local resources
IPv6 only with internet
Which motherboard form factor is largest among the options?
Mini‑ITX
Micro‑ATX
ATX
Pico‑ITX
Which PSU rating indicates efficiency under various loads?
12 V rail
80 PLUS (Bronze/Gold/etc.)
Wattage sticker only
PCIe power connector count
Which storage gives the lowest latency?
5400 RPM HDD
SATA SSD
NVMe SSD (PCIe)
Tape
Which RAID level offers mirroring with improved read performance?
RAID 0
RAID 1
RAID 5
RAID 10
A user needs high IOPS for a database. Which storage plus slot combo is best?
SATA SSD on SATA II
NVMe SSD on M.2 (PCIe x4)
HDD on USB 2.0
SD card on reader
Which printer type uses a fuser, drum, and toner?
Inkjet
Laser
Impact
Thermal
Which connector is used for SATA data?
7-pin L-shaped connector
15-pin power connector
Molex 4-pin
8-pin EPS
Dual-channel memory requires:
Identical capacity/speed in the correct slots
ECC modules only
Registered DIMMs only
Mixing different capacities in any slot
A monitor supports 2560×1440 at 165 Hz. Which cable/standard is most appropriate?
VGA
HDMI 1.2
DisplayPort 1.4 or HDMI 2.1
DVI-D single-link
Which interface is hot-swappable and common for external drives?
PATA
SATA (internal)
USB 3.x
SCSI narrow internal
Which slot type do most modern discrete GPUs use?
PCI
AGP
PCIe x16
ISA
A thermal printer produces faded output. What’s the most likely fix?
Replace toner
Replace ribbon
Replace the paper roll with thermal paper
Clean the printhead and replace fuser
Which feature allows a CPU to run multiple threads per core?
Virtualization extensions
Hyper-threading/SMT
Turbo Boost/Precision Boost
ECC
A small office needs a shared storage device with RAID and SMB sharing. Choose:
DAS
NAS
Tape library
KVM switch
Which port is commonly used for audio + video from a PC to a monitor with HDCP?
DVI-A
HDMI
PS/2
S/Video
What does ECC RAM primarily provide?
Higher speed
Error detection and correction for memory faults
Lower power use
More capacity per module
Which cable type is safest for in-ceiling air-handling spaces?
PVC
Plenum-rated
Riser-rated only
Unshielded PVC anywhere
A user needs to import photos directly from a camera with the fastest practical link. Choose:
USB 2.0
USB 3.2 Gen 2 (10 Gbps)
RS-232
FireWire 400
A Type 1 hypervisor runs:
On top of a host OS as an app
Directly on bare metal
Only inside containers
Only on mobile devices
Which VM network mode provides a private network between host and guests only?
Bridged
NAT
Host-only
VLAN trunk
Which cloud model provides full applications managed by the provider?
IaaS
PaaS
SaaS
FaaS
A benefit of cloud computing where resources rapidly scale up/down is called:
Metered billing
Rapid elasticity
Vertical coupling
Thick provisioning
Spinning up many VMs without documentation or lifecycle control is known as:
VM sprawl
Cloud bursting
Shadow IT
Vertical scaling
Which is the best way to preserve a VM state before patching?
Export a CSV of settings
Take a snapshot
Change to host-only mode
Pause the VM
In IaaS, which layer is the customer primarily responsible for?
Physical data center
Hypervisor firmware
Guest OS and applications
Power and cooling
Which term describes distributing workloads across multiple servers/regions for availability?
RAID
Load balancing
VLAN trunking
Which is not a typical cloud characteristic?
On-demand self-service
Broad network access
Resource pooling
Fixed capacity with manual tickets
A dev team needs a managed runtime and database, without managing servers. Choose:
PaaS
IaaS
SaaS
Bare metal
Which VM resource is most likely to cause contention first on a small host?
USB ports
RAM
NIC MAC addresses
Optical drive
Which storage concept allows thin provisioning and fast clones?
Tape library
Block storage with snapshots
Direct attached only
Optical jukebox
A hybrid cloud is best described as:
All workloads in public cloud
On-prem + public cloud working together
Multi-public-cloud only
Only community cloud tenants
Containers differ from VMs primarily because containers:
Include full guest OS kernels
Share the host OS kernel
Require Type 1 hypervisors
Can't be orchestrated
Which virtual NIC mode lets a VM get an IP from the same DHCP server as the host network?
NAT
Host-only
Bridged
Loopback
A small business wants email hosting without managing any servers. Choose:
IaaS with self-installed mail server
PaaS
SaaS email
Bare-metal colocated server
To reduce cost in the cloud when demand drops at night, you should:
Overprovision
Scale to zero / downsize instances on schedule
Use static size always
Disable autoscaling
A developer wants to test multi-OS environments on a laptop. Best tool?
Type 1 hypervisor only
Type 2 hypervisor (Workstation/VirtualBox)
NAS storage
Bare-metal restore utility
A PC powers on; fans spin; no POST beeps; no video. First step?
Replace CPU
Reseat RAM and GPU; check monitor input/cable
Reinstall Windows
Format the drive
Desktop randomly reboots under load. Most likely cause?
DNS issue
Underpowered/failing PSU
Bad HDMI cable
Wrong wallpaper
After replacing a motherboard, the system powers but shuts down after 10 seconds. Likely cause?
SSD firmware
CPU cooler not seated/plugged
Printer driver
Wrong desktop theme
Laser prints show smearing that rubs off. Likely fix?
Replace fuser
Replace toner only
Calibrate colors
Clean print head nozzles
Inkjet prints have streaks/missing colors. First action?
Replace fuser
Run printhead cleaning/alignment
Replace duplexer
Vacuum paper path
Users on one floor get 169.254.x.x addresses. First check?
DNS zone
DHCP scope/relay for that VLAN
Web proxy
Default gateway’s ARP table
A user can reach internal hosts by IP but not by name. Where do you look?
DHCP lease time
DNS server settings on the client
VLAN tagging
Power plan
Wi-Fi signal is strong but throughput is poor at 2.4 GHz in a dense office. Best change?
Channels 1/6/11 and/or move to 5 GHz
Disable WPA2
Lower AP transmit power drastically
Use WEP for speed
A new M.2 NVMe SSD is installed, but a SATA port disappears. Why?
PSU wattage
Shared chipset lanes—using that M.2 slot disables a SATA port
BIOS password
GPU driver
A user’s monitor shows “Input Not Supported” after changing resolution. Quick fix?
Replace GPU
Boot to low-res mode/safe mode and set a supported resolution
Reinstall all apps
Change DHCP server
Network printer shows Offline, but it responds to ping. Next step?
Replace toner
Check the Windows print queue port/IP and restart the spooler
Change VLANs
Reboot the DNS server
Laptop shuts down during gaming; chassis is hot. First remedy?
Disable fans
Clean vents; check fans; reapply thermal compound if needed
Lower screen brightness
Uninstall antivirus
A user reports no audio after connecting HDMI to a monitor. What changed?
NIC config
Default audio output switched to the monitor
BIOS reset
DHCP lease renewed
A patch panel port is unlabeled; you need to find its wall jack. Best tool combo?
Loopback plug only
Tone generator and probe
OTDR
Cable crimper
Intermittent fiber link errors after moving a switch. Most likely?
IPv6 misconfig
Dirty fiber connectors/poor bend radius
Wrong SSID
DHCP exhaustion
A PoE phone won’t power on at a desk but works in another port. Likely cause?
DNS down
Non-PoE switch port or disabled PoE on that interface
Wrong default gateway
Duplex mismatch
After a power outage, multiple PCs show incorrect time and can’t log in to a domain service. What’s the fix?
Change to static IPs
Restore NTP reachability and sync clocks
Disable DNSSEC
Replace all NICs
A tablet screen automatically rotates. Which sensor enables this?
Gyroscope/accelerometer
Proximity sensor
Ambient light sensor
Magnetometer
Which laptop component is commonly user-replaceable to extend device life?
CPU
Battery
SO-DIMM RAM
Dedicated GPU module
A user’s laptop trackpad stops clicking after a battery swells. What’s the safest action?
Continue using the laptop until the battery drains
Puncture the battery to release pressure
Power down and replace the battery safely
Tape over the trackpad and keep working
A stylus with pressure sensitivity requires what feature?
Passive capacitive touchscreen
Active digitizer
Resistive touch layer
NFC antenna
Which connection is most appropriate for docking a laptop to legacy VGA and USB-A-only monitors and peripherals?
USB-C dock with the appropriate outputs
Thunderbolt-to-SATA adapter
Micro-USB OTG cable
HDMI splitter
eSIM primarily replaces which component?
MicroSD card
Physical SIM card
Wi‑Fi card
NFC tag
Which is not a likely benefit of a laptop docking station over a port replicator?
Additional dedicated GPU
More I/O ports and power delivery
Single-cable connectivity
Ethernet and audio breakout
On iOS/Android, which feature separates work and personal data on BYOD?
Jailbreaking
Work Profile / User Enrollment
Developer options
Bluetooth pairing
Which wireless standard operates only in 5 GHz (legacy spec)?
802.11n
802.11ac
802.11ax
802.11g
Laptop RAM is upgraded but the system reports the old capacity. What is the first step?
Update the BIOS/UEFI
Reseat modules and check slot population rules
Replace the motherboard
Disable XMP or memory overclocking
Which device forwards traffic between networks based on IP?
Switch
Hub
Router
Repeater
Which IP address indicates APIPA on Windows?
192.168.1.10
169.254.22.8
10.0.0.25
172.16.5.5
Which cable type is required for 10GBASE‑T up to 100 meters?
Cat 5e
Cat 6
Cat 6a
Cat 7
Which fiber connector uses a small form factor, push‑pull design with a latch?
ST
SC
LC
MTRJ
In 2.4 GHz Wi‑Fi, which non‑overlapping channels should you select for 20 MHz channels?
1, 6, 11
2, 7, 12
3, 8, 13
4, 9, 14
Which security protocol is preferred for SOHO Wi‑Fi today (if supported)?
WEP
WPA with TKIP
WPA2‑Personal
WPA3‑Personal
You can ping 1.1.1.1 but can’t resolve example.com. What’s likely broken?
DHCP
DNS
Default gateway
NAT
Which port is used for RDP?
22
80
3389
5900
A SOHO router with a guest network should use which best practice?
Enable UPnP for guests
Share the admin password for quick access
Client isolation and a separate VLAN
Place all guest devices in the DMZ
A user needs to reach internal hosts by name. Which server or service is required?
DHCP
DNS
LDAP
NTP
Which WAN technology uses phone lines with a DSL modem?
Cable (DOCSIS)
Fiber (GPON)
xDSL
Microwave
Which IPv6 address type is link-local?
fe80::/10
fc00::/7
2001::/16
ff00::/8
Which term describes translating private IPs to a public IP at the edge?
PAT/NAT
DNS
DHCP
ARP
What does PoE allow?
Video over Ethernet to displays
Power over Ethernet to endpoints
Only data over Ethernet to endpoints
Power over coaxial cable
Which tool verifies cable continuity and pair mapping?
Tone generator and probe
Loopback plug
Cable tester
Time-domain reflectometer
A user on Wi‑Fi has weak signal in a far room. Which is the best fix?
Increase the client transmit power in software
Add a properly placed AP or mesh node
Lower the SSID security level
Disable WPA3 and use open access
Which DNS record type maps a name to an IPv4 address?
A
AAAA
CNAME
MX
Your DHCP scope is exhausted. What symptom will clients show?
Static addresses with full network access
APIPA addresses and no network access
Duplicate addresses but normal access
IPv6-only addresses with full access
Which motherboard form factor is largest among the options?
Mini‑ITX
Micro‑ATX
ATX
Nano‑ITX
Which PSU rating indicates efficiency under various loads?
SATA III
80 PLUS (Bronze/Gold/etc.)
PCIe Gen 4
ATX12VO
Which storage gives the lowest latency?
HDD (SATA)
SATA SSD
NVMe SSD (PCIe)
External USB SSD
Which RAID level offers mirroring with improved read performance?
RAID 0
RAID 1
RAID 5
RAID 10
A user needs high IOPS for a database. Which storage plus slot combo is best?
SATA SSD on 6 Gbps port
NVMe SSD on M.2 (PCIe x4)
HDD on SATA
NVMe SSD via USB 3.0 enclosure
Which printer type uses a fuser, drum, and toner?
Inkjet
Laser
Dot‑matrix
Thermal transfer
Which connector is used for SATA data?
7‑pin L‑shaped connector
15‑pin power connector
Molex 4‑pin
RJ‑45
Dual‑channel memory requires:
Different capacities in any slots
Identical capacity and speed in the correct paired slots
ECC modules only
Filling all DIMM slots
A monitor supports 2560×1440 at 165 Hz. Which cable/standard is most appropriate?
DVI‑D Single‑Link
VGA
DisplayPort 1.4 or HDMI 2.1
USB 2.0
Which interface is hot‑swappable and common for external drives?
SATA III internal
Thunderbolt 1 only
USB 3.x
PS/2
Which slot type do most modern discrete GPUs use?
PCIe x1
PCIe x4
PCIe x16
AGP 8x
A thermal printer produces faded output. What’s the most likely fix?
Replace the fuser
Refill toner
Replace the paper roll with thermal paper
Update the printer driver
Which feature allows a CPU to run multiple threads per core?
Turbo Boost
Hyper‑threading/SMT
Overclocking
Branch prediction
A small office needs a shared storage device with RAID and SMB sharing. Choose:
SAN
NAS
Direct‑attached USB drive
Cloud cold archive
Which port is commonly used for audio + video from a PC to a monitor with HDCP?
DisplayPort mini only
HDMI
D‑sub (VGA)
Composite video
What does ECC RAM primarily provide?
Higher clock speeds for gaming
Error detection and correction for memory faults
Lower power draw than standard RAM
Integrated graphics acceleration
Which cable type is safest for in‑ceiling air‑handling spaces?
PVC‑jacketed
Plenum‑rated
Riser‑rated
Unshielded patch cord
A user needs to import photos directly from a camera with the fastest practical link. Choose:
USB 2.0 (480 Mbps)
USB 3.2 Gen 2 (10 Gbps)
Bluetooth 5
802.11n Wi‑Fi
A Type 1 hypervisor runs:
Inside a host OS only
Directly on bare metal
Only in the cloud
As a browser plug‑in
Which VM network mode provides a private network between host and guests only?
NAT (to external LAN)
Bridged (to physical LAN)
Host‑only
Bonded NIC team
Which cloud model provides full applications managed by the provider?
IaaS
PaaS
SaaS
On‑premises
A benefit of cloud computing where resources rapidly scale up/down is called:
Fixed capacity
Rapid elasticity
Manual provisioning
Cold standby
Spinning up many VMs without documentation or lifecycle control is known as:
VM sprawl
Greenfield deployment
High availability
Blue/green release
Which is the best way to preserve a VM state before patching?
Export logs
Take a snapshot
Delete and recreate the VM
Pause the VM
In IaaS, which layer is the customer primarily responsible for?
Physical data center facilities only
Hypervisor and storage fabric
Guest OS and applications
Global backbone routing
Which term describes distributing workloads across multiple servers/regions for availability?
Anycast DNS
Load balancing
Port aggregation
Content filtering
Which is not a typical cloud characteristic?
On‑demand self‑service
Resource pooling
Rapid elasticity
Fixed capacity with manual tickets
A dev team needs a managed runtime and database, without managing servers. Choose:
PaaS
IaaS
Bare‑metal hosting
Colocation
Which VM resource is most likely to cause contention first on a small host?
vCPU count
RAM
SSD capacity
GPU cores
Which storage concept allows thin provisioning and fast clones?
Tape libraries
Block storage with snapshots
Optical media
Direct‑attached HDD only
A hybrid cloud is best described as:
Multiple public clouds with no on‑prem
On‑prem plus public cloud working together
Only private cloud resources
Only SaaS subscriptions
Containers differ from VMs primarily because containers:
Emulate full hardware
Share the host OS kernel
Require a guest kernel per app
Cannot run on Linux
Which virtual NIC mode lets a VM get an IP from the same DHCP server as the host network?
Host‑only
NAT
Bridged
Isolated test network
