NCTI TECH 4 TO 5 CH. TEST STUDY GUIDE
EXAM QUESTIONS AND ANSWERS
What happens when a router forwards data packets from one
network to another network? -
correct answer ✅The destination address of the router in the
framed packet is removed and the packet header address is
inspected by the router to determine the next destination address
to encapsulate around the packet.*
________ allows network administrators to break up a single
network address into smaller network addresses, creating router-
connected network segments, all with their own unique network
address space. -
correct answer ✅Subnetting**
What term describes the number of wave crests that pass a fixed
point during a particular period of time? -
correct answer ✅Frequency
In data networking, this term is defined as "Signals may flow in
either direction, but not simultaneously". -
correct answer ✅Half Duplex
,NCTI TECH 4 TO 5 CH. TEST STUDY GUIDE
EXAM QUESTIONS AND ANSWERS
Two CPUs have the same size data bus. Which one will process data
faster? -
correct answer ✅The one with a higher clock speed
This unique ID number is coordinated by the Institute of Electrical
and Electronics Engineers and is used by only one network interface
card anywhere in the world. -
correct answer ✅Media access control address (MAC)
Which is a network management and utility software that is
typically used by network administrators and information systems
personnel when the network is unused or lightly used, often in the
middle of the night? -
correct answer ✅Back up and recovery Utilities
Which of the following is also called "Thicknet" or "yellow wire" and
includes two layers of foil shielding as well as an additional copper
mesh shield? -
correct answer ✅10Base5 cable
According to 10BaseT wiring rules, what is the maximum segment
length without a repeater? -
correct answer ✅100m
, NCTI TECH 4 TO 5 CH. TEST STUDY GUIDE
EXAM QUESTIONS AND ANSWERS
When light travels through a fiber-optic cable, the change in
refractive index causes the light to refract off which of the
following? -
correct answer ✅The boundary between the core and the
cladding
Which of the following requires a laser transmitter? -
correct answer ✅Single-mode fiber
In what part of a building would you typically find punch-down
blocks? -
correct answer ✅Wiring closet
Encapsulation and protocol headers, decapsulation, and reassembly
are three of the four basic techniques used whenever different
layers of protocols work together. What is the fourth? -
correct answer ✅Segmentation
Which type of address is unique anywhere in the world? -
correct answer ✅NIC address
EXAM QUESTIONS AND ANSWERS
What happens when a router forwards data packets from one
network to another network? -
correct answer ✅The destination address of the router in the
framed packet is removed and the packet header address is
inspected by the router to determine the next destination address
to encapsulate around the packet.*
________ allows network administrators to break up a single
network address into smaller network addresses, creating router-
connected network segments, all with their own unique network
address space. -
correct answer ✅Subnetting**
What term describes the number of wave crests that pass a fixed
point during a particular period of time? -
correct answer ✅Frequency
In data networking, this term is defined as "Signals may flow in
either direction, but not simultaneously". -
correct answer ✅Half Duplex
,NCTI TECH 4 TO 5 CH. TEST STUDY GUIDE
EXAM QUESTIONS AND ANSWERS
Two CPUs have the same size data bus. Which one will process data
faster? -
correct answer ✅The one with a higher clock speed
This unique ID number is coordinated by the Institute of Electrical
and Electronics Engineers and is used by only one network interface
card anywhere in the world. -
correct answer ✅Media access control address (MAC)
Which is a network management and utility software that is
typically used by network administrators and information systems
personnel when the network is unused or lightly used, often in the
middle of the night? -
correct answer ✅Back up and recovery Utilities
Which of the following is also called "Thicknet" or "yellow wire" and
includes two layers of foil shielding as well as an additional copper
mesh shield? -
correct answer ✅10Base5 cable
According to 10BaseT wiring rules, what is the maximum segment
length without a repeater? -
correct answer ✅100m
, NCTI TECH 4 TO 5 CH. TEST STUDY GUIDE
EXAM QUESTIONS AND ANSWERS
When light travels through a fiber-optic cable, the change in
refractive index causes the light to refract off which of the
following? -
correct answer ✅The boundary between the core and the
cladding
Which of the following requires a laser transmitter? -
correct answer ✅Single-mode fiber
In what part of a building would you typically find punch-down
blocks? -
correct answer ✅Wiring closet
Encapsulation and protocol headers, decapsulation, and reassembly
are three of the four basic techniques used whenever different
layers of protocols work together. What is the fourth? -
correct answer ✅Segmentation
Which type of address is unique anywhere in the world? -
correct answer ✅NIC address
