MCQs

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Overall MCQs for Reference

Which type of cabling is most commonly used for modern server rooms due to high data transfer rates and reliability?
a. Coaxial
b. Twisted Pair (UTP/STP)
c. Ribbon Cable
d. Fiber Optic
Answer: d. Fiber Opticnetworkdrops+1
What does STP stand for in network cabling?
a. Shielded Twisted Pair
b. Spanning Tree Protocol
c. Static Transport Protocol
d. Shielded Two Power
Answer: a. Shielded Twisted Pairsanfoundry+1
RJ-45 connectors are commonly used with which cable category in server environments?
a. Coaxial
b. CAT5/CAT6 Twisted Pair
c. Fiber Optic
d. Ribbon
Answer: b. CAT5/CAT6 Twisted Pairsanfoundry+1
What is the maximum recommended segment length for standard twisted pair (UTP/STP) Ethernet cables?
a. 30 meters
b. 50 meters
c. 100 meters
d. 200 meters
Answer: c. 100 meterssanfoundry
Which cable type is most immune to electromagnetic interference?
a. UTP
b. Coaxial
c. Ribbon
d. Fiber Optic
Answer: d. Fiber Opticnetworkcablingservices+1
Which cable is usually found in older networks and uses a single copper conductor at its core?
a. Coaxial
b. UTP
c. Fiber Optic
d. Twisted Pair
Answer: a. Coaxialuninets+1
What is the maximum bandwidth of a standard Cat6 cable?
a. 100 MHz
b. 250 MHz
c. 600 MHz
d. 2000 MHz
Answer: b. 250 MHzuninets
Shielding in STP cables primarily protects against:
a. Physical Damage
b. Water Ingress
c. Electromagnetic Interference
d. Signal Reflection
Answer: c. Electromagnetic Interferencenetworkdrops
Which category of twisted pair cabling is specifically designed for 10 Gbps Ethernet at up to 100 meters?
a. Cat5
b. Cat5e
c. Cat6a
d. Cat7
Answer: c. Cat6aintellinetsolutions+1
UTP cables are more suitable than STP cables for:
a. High interference environments
b. Short distances with minimal interference
c. Direct outdoor burial
d. Multimode fiber applications
Answer: b. Short distances with minimal interferencenetworkdrops
What is the typical maximum data rate of Cat5e cable?
a. 100 Mbps
b. 1 Gbps
c. 10 Gbps
d. 40 Gbps
Answer: b. 1 Gbpsintellinetsolutions+1
Which fiber optic cable type is used for short-distance, high-bandwidth connections within data centers?
a. Single-mode fiber
b. Multi-mode fiber
c. Coaxial fiber
d. UTP fiber
Answer: b. Multi-mode fibernetworkcablingservices+1
The term “backbone cabling” in server rooms generally refers to:
a. Horizontal UTP runs
b. Inter-switch fiber connections
c. Desktop patch cables
d. Telephone lines
Answer: b. Inter-switch fiber connectionshexatronicdatacenter+1
Which category of cable has the highest bandwidth and is suited for data centers with speeds up to 40 Gbps?
a. Cat6
b. Cat6a
c. Cat7
d. Cat8
Answer: d. Cat8uninets+1
In structured cabling, what is the main function of a patch panel?
a. Data conversion
b. Cable termination and management
c. Power regulation
d. Signal amplification
Answer: b. Cable termination and managementhexatronicdatacenter+1
Which connector is typically used for single-mode fiber optic cables in server racks?
a. RJ-45
b. LC
c. BNC
d. DB-25
Answer: b. LCnetworkcablingservices+1
What does the “plenum rating” for cabling indicate?
a. Maximum speed
b. Fire safety and smoke emissions
c. Resistance to water
d. Shielding type
Answer: b. Fire safety and smoke emissionshexatronicdatacenter
Which type of cable has four pairs of wires twisted together and is commonly used in Ethernet networks?
a. Coaxial
b. Ribbon
c. Twisted Pair
d. Fiber Optic
Answer: c. Twisted Pairnetworkdrops+1
What is the primary reason to use armored fiber optic cables in server environments?
a. Faster speed
b. Resistance to mechanical damage
c. Higher frequency support
d. Lower cost
Answer: b. Resistance to mechanical damagenetworkcablingservices
Which standard defines Gigabit Ethernet over copper cabling?
a. 802.11ac
b. 802.3z
c. 802.3ab
d. 802.1Q
Answer: c. 802.3abintellinetsolutions
The main advantage of fiber optic cables over copper cables in server rooms is:
a. Lower cost
b. Higher speed and distance
c. Simple connectors
d. Lower installation skill
Answer: b. Higher speed and distancenetworkdrops+1
Which type of cabling is most often used for uplinks between switches in large data centers?
a. Cat5e
b. Cat8
c. Fiber Optic
d. Coaxial
Answer: c. Fiber Opticnetworkcablingservices+1
Which component connects a server’s NIC to the network cable?
a. Switch
b. Patch Panel
c. Jack/Port
d. Gateway
Answer: c. Jack/Porthexatronicdatacenter
Cable dressing in a server rack refers to:
a. Changing cables frequently
b. Organizing and routing cables neatly
c. Testing the cables
d. Terminating cables
Answer: b. Organizing and routing cables neatlyhexatronicdatacenter
Which Ethernet cable is most suitable for PoE (Power over Ethernet) applications up to 90 Watts in new server rooms?
a. Cat5
b. Cat5e
c. Cat6a
d. Cat3
Answer: c. Cat6aintellinetsolutions
The maximum speed Cat7 cable can support at optimal conditions:
a. 1 Gbps
b. 10 Gbps
c. 40 Gbps
d. 100 Gbps
Answer: c. 40 Gbpsuninets+1
What physical characteristic distinguishes multimode from single-mode fiber cables?
a. Color of sheath
b. Diameter of core
c. Type of jacket
d. Shielding
Answer: b. Diameter of corenetworkdrops+1
The purpose of keystone jacks in server cabinets is to:
a. Provide modular cable termination points
b. Increase power
c. Act as data repeaters
d. Convert media types
Answer: a. Provide modular cable termination pointshexatronicdatacenter
What does “attenuation” refer to in network cabling?
a. Signal amplification
b. Signal loss over distance
c. Cable lengthening
d. Cable splitting
Answer: b. Signal loss over distanceuninets+1
In twisted pair cabling, crosstalk is best mitigated by:
a. Increasing the cable diameter
b. Twisting the wire pairs
c. Shielding the PVC jacket
d. Using optical fiber
Answer: b. Twisting the wire pairsuninets+1
What feature of fiber optic cabling makes it preferable for high-security environments?
a. Cost
b. EMI immunity and eavesdropping resistance
c. Small diameter
d. Light weight
Answer: b. EMI immunity and eavesdropping resistancenetworkcablingservices
Which colored pair in a standard Cat5e cable is typically used for data transmission?
a. Blue/Blue-White
b. Orange/Orange-White
c. Brown/Brown-White
d. Red/Red-White
Answer: b. Orange/Orange-Whiteuninets
Which category of twisted pair cable is now mostly considered legacy in new server deployments?
a. Cat3
b. Cat5e
c. Cat6
d. Cat6a
Answer: a. Cat3uninets
What network cable type would provide the best performance for 25 Gbps server interconnects within a rack?
a. Cat6
b. Cat6a
c. Cat7
d. Cat8
Answer: d. Cat8intellinetsolutions+1
Out of the following, which is not a type of Twisted Pair cable?
a. Cat5e
b. Cat6a
c. Cat8
d. F-type coaxial
Answer: d. F-type coaxialnetworkdrops+1
If a copper cable run in a server room must exceed 100 meters, the recommended action is to:
a. Extend with another UTP cable
b. Use fiber optic cable
c. Use coaxial cable
d. Install a cable sleeve
Answer: b. Use fiber optic cablenetworkcablingservices+1
The best practice for labeling cables in a server rack is to:
a. Use arbitrary codes
b. Use clear, descriptive identifiers at both ends
c. Only label on one side
d. Use color only
Answer: b. Use clear, descriptive identifiers at both endshexatronicdatacenter
What is the main disadvantage of coaxial cable in server technology applications today?
a. Complex connectors
b. Limited bandwidth and flexibility
c. Difficult installation
d. High cost
Answer: b. Limited bandwidth and flexibilitynetworkdrops+1
What should be checked first when a newly installed Ethernet cable fails to pass connectivity tests in a server rack?
a. Cable color
b. Proper termination and pinout
c. Rack temperature
d. OS version
Answer: b. Proper termination and pinouthexatronicdatacenter
Which cable category provides a good balance of speed (up to 10 Gbps), cost, and shielding for new server rooms?
a. Cat5
b. Cat5e
c. Cat6a
d. Cat3
Answer: c. Cat6aintellinetsolutions+1
What key benefit do modular patch panels bring to server room cabling management?
a. Reduce cable costs
b. Facilitate rapid changes and future expansion
c. Replace switches
d. Eliminate need for keystone jacks
Answer: b. Facilitate rapid changes and future expansionhexatronicdatacenter
What is the recommended bend radius for fiber optic cables during installation?
a. As tight as possible
b. 10 times the cable diameter
c. 100 cm minimum
d. 1 cm minimum
Answer: b. 10 times the cable diameternetworkcablingservices
Why is Category 6A cable preferred over Cat6 in high-density server environments?
a. Thinner wires
b. Improved crosstalk performance and higher max speeds
c. Cheaper costs
d. Longer historical usage
Answer: b. Improved crosstalk performance and higher max speedsintellinetsolutions+1
What is the role of a cable tray in a server room?
a. To power the devices
b. To neatly route and support network cables across racks
c. To convert data signals
d. To terminate cables
Answer: b. To neatly route and support network cables across rackshexatronicdatacenter
Which color code standard is most commonly followed for structured network cabling pinouts?
a. TIA/EIA-568B
b. IEEE 802.3z
c. ISO 9001
d. TIA/EIA-345
Answer: a. TIA/EIA-568Bhexatronicdatacenter
What happens if twisted pair cables are untwisted too far when terminating a jack?
a. Improved speed
b. Increased crosstalk and signal loss
c. Stronger signal
d. Lower EMI
Answer: b. Increased crosstalk and signal lossnetworkdrops+1
What is a patch cord?
a. A cable with connectors on both ends, used for short runs
b. A copper bar in the rack
c. An optical splice
d. A cable test tool
Answer: a. A cable with connectors on both ends, used for short runshexatronicdatacenter
What cable category is best suited for 1 Gbps connections at distances up to 100 meters?
a. Cat3
b. Cat5e
c. Cat6
d. Cat8
Answer: b. Cat5eintellinetsolutions+1
Which standard governs the color-coding and performance requirements of Ethernet cables?
a. ISO 9001
b. TIA/EIA-568
c. IEEE 488
d. RS-232
Answer: b. TIA/EIA-568hexatronicdatacenter
What maintenance activity is essential for server room cabling reliability over the long term?
a. Regular cleaning, inspection, and documented changes
b. Replacing cables weekly
c. Increasing cable lengths
d. Running all cables in trays
Answer: a. Regular cleaning, inspection, and documented changesnetworkcablingservices+1

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