ICS 620 - Exam 4
IPv6 includes ____ address fields.
16-bit
[Blank] is the unwanted coupling between signal paths.
Crosstalk
List some distinguishing characteristics of optical fiber cables compared with twisted pair or coaxial cables.
greater capacity, lower attenuation, electromagnetic isolation
Planning to keep a circuit active is planning for:
Fault tolerance
When a mobile unit moves, it may connect with a different base station. This action is called a
Handoff
Which of the following is not one of the distinguishing characteristics for optical fiber cables compared with twisted pair or coaxial cables?
Heavier Weight
The most significant set of standards defining WLANs are those defined by the ______________ committee
IEEE 802.11
IP exists at what layer of the OSI model?
Layer 3
_______ is the most important of the enhancements provided by LTE
MIMO
Fiber, copper, and wireless are all forms of:
Media
What is PoE?
Power of ethernet
What is PoE?
Power over Ethernet
The ideal design for cells in a cellular network is a hexagonal shape because:
This makes the distance to all adjacent cells the same
A ________ VLAN line carries all types of VLAN
Trunk line
A backbone cable runs:
Vertically
Beamwidth is measured by a [blank] dB attentuation on each side form the highest power of the radiated frequency.
-3
When using cellular network:
Adjacent cells are assigned different frequencies
When using cellular networks:
Adjacent cells are assigned different frequencies
Smart antennas use [blank] to shape the pattern of the propagated frequency.
Beam-stearing phased arrays.
The common type of UTP for installation today is:
Cat 5
[Blank] power control is used spread spectrum (SS) multiple access techniques.
Close-loop
______ is the unwanted coupling between signal paths.
Crosstalk
Communication via circuit switching involves three phases: circuit establishment, [blank], and circuit disconnect.
Data transfer
Peer-to-peer refers to - equality among equipment - clients talking with servers - two friends communicating - a scalable architecture
Equality among equipment
Peer-to-peer refers to:
Equality among equipment
T/F: Thermal noise can be eliminated in the design of a wireless network.
False
The most significant set of standards defining WLANs are those defined by the ____________________ committee
IEE 802.11
A company-only network is referred to as:
Intranet
IPv6 includes ________ address fields.
Jones says 16-bit; it's actually 128-bit
As cells become smaller, antennas move from the tops of tall buildings or hills, to the tops of small buildings or the sides of large buildings, and finally to lamp posts, where they form _____________
Microcells
The frame format for the 802.3 protocol consists of
Preamble SFD Destination Address
Which of the following is not an end device? - Security camera - VoIP phone - Network printer - Router
Router
A private network that handles only storage need is a(n):
SAN
A private network that handles only storage needs is a ____________
SAN
Smart antennas use_____to shape the pattern of the propagated frequency.
beam-steering phased arrays
The phone company uses a ___________ network
circuit switched
Systems using common channel signaling:
employ a separate virtual channel for connection setup.
A company-only network is referred to as a:
intranet
[Blank] antennas are used as a theoretical model in designing wireless networks.
isotropic
The sequence 10101011, which indicates the actual start of the frame and enables the receiver to locate the first bit of the rest of the frame, is the ______.
start frame delimiter (SFD)
The frame format for the 802.3 protocol consists of ____, ____, and _____.
start frame delimiter (SFD) destination address preamble
[Blank] is used in optimizing throughput for RF network design, which includes gains/losses form the transmit site, free space loss, and the receive site.
The Link Budget
T/F: When using wireless network, roaming occurs when a mobile station moves from one cell to another.
True
T/F: When using wireless network, roaming occurs when a mobile stations moves from one cell to another
True
T/F: Wireless networks are more susceptible than wired networks to interference, signal loss, noise, and eavesdropping.
True
A frame goes inside of a packet
True (according to quiz)
A packet goes inside of a segment
True (according to quiz)
Which of the following is not an end device?
Router
A ____ can be described as a separate network of storage devices that are physically removed from, but still connected to, the network:
SAN (Storage Area Network)
The sequence 10101011, which indicates the actual start of the frame and enables the receiver to locate the first bit of the rest of the frame, is the ___.
SFD
Ethernet requires that each segment be no more than ___________ in length, including the installed cabling and patch cables at either end, for 10-Mbps and 100-Mbps transmissions.
100 meters (m)
Ethernet requires that each segment be no more than _____ in length, including the installed cabling and patch cables at either end, for 10-Mbps and 100-Mbps transmissions.
100m
Beamwidth is measured by a _____ dB attenuation on each side from the highest power of the radiated frequency.
3 [is correct because 'attenuation' is used; confusingly, -3 was accepted but not recommended since this is a double-negative]
When a mobile unit moves, it may connect with a different base station. This action is called:
A handoff
_________ incorporate beam-steered _________ and use signal processing techniques to shape the beam pattern.
Smart Antennas, Phased Arrays
__________________ incorporate beam-steered _________________ and use signal processing techniques to shape the beam pattern.
Smart antennas phased arrays
CSMA/CD is a method of:
Access control
Which of the following is not one of the ways that frequency spectrum can be divided among active users?
Cell Division Multiple Access
With [blank], a cells is divided into a number of wedge shaped sectors, each with its own set of channels, typically three or six sectors per cell.
Cell sectoring
With ___________, a cell is divided into a number of wedge shaped sectors, each with its own set
Cell sectoring
Which "XDMA" (______ division multiple access) is NOT one of the ways that frequency spectrum can be divided among active users? Also list the other ones used.
Cell. Space, code, time, and frequency are used.
the phone company uses a:
Circuit switch network
________ power control is used spread spectrum (SS) multiple access techniques
Closed loop
________________________ is defined by the Link Budget in designing wireless networks
EIRP Effecdtive isotropic radiated power
Because of the limited frequencies available, a key design element of any cellular system is to:
Employ multiple access
What are the three primary multiple access schemes used in cellular telephony?
FDMA TDMA CDMA
T/F: Wireless networks compete effectively in terms of data transfer rates when compared with wired networks.
False
True or False. Thermal noise can be eliminated in the design of a wireless network.
False
True or False. Wireless networks compete effectively in terms of data transfer rates when compared with wired networks.
False
Wireless networks compete effectively in terms of data transfer rates when compared with wired networks
False
Describe class A networks in relative terms of number of networks and hosts.
Few networks, each with many hosts
Which of the following describes Class A Networks?
Few networks, each with many hosts.
___ provides a low-cost, easily scalable approach to achieving very high data rates and is used in storage area networks (SANs) and for other types of storage networking.
Fibre Channel
___________ provides a low-cost, easily scalable approach to achieving very high data rates and is used in storage area networks (SANs) and for other types of storage networking. (watch your spelling!)
Fibre channel
Name one of the error compensation methods used today in wireless networks.
Forward Error Correction Adaptive Equalization Diversity Techniques
The [blank] defines how much space around a direct path between transmitter and receiver should be clear of obstacles.
Fresnel Zone
The ________ defines how much space around a direct path between transmitter and receiver should be clear of obstacles.
Fresnel Zone
____________ defines how much space there should be allocated for the direct path between transmitter and receiver, clear of obstacles.
Fresnel Zone
____________________ defines how much space there should be allocated for the direct path between transmitter and receiver, clear of obstacles
Fresnel zone
Which of the following LAN technologies has the highest capacity?
Gigabit Ethernet
WLANs use one of three transmission techniques: spread spectrum, narrowband microwave, and ___________
Infrared
[Blank] is when one or more delayed copies of a pulse arrives at the same time as the primary pulse for a subsequent bit.
Intersymbol Interference (ISI)
_______ is when one or more delayed copies of a pulse arrives at the same time as the primary pulse for a subsequent bit.
Intersymbol interference (ISI)
Which is the newest technology?
Layer 3 Switch
Which is the newest technology: - Hub - Bridge - Layer 3 switch - Layer 2 switch
Layer 3 switch
Which type of diagram provides IP addresses?
Logical Topology
Single mode fiber is used for:
Long Haul
Single mode fiber is used for: - Heavy haul - Long haul - Short haul - Medium haul
Long haul
When examining a MAC frame of data, starting with the first bit, which of the following describes the order of the various headers found in the frame?
MAC, LLC, IP, and TCP
___________ antenna architecture is the most important of the enhancements provided by LTE.
MIMO
[Blank] directs data from one network node to the next based on short path labels rather than longer IP network addresses.
MPLS or Multi-Protocol Label Switching
Describe class B networks in relative terms of number of networks and hosts.
Medium number of networks, each with a medium number of hosts
Which of the following describes Class B Networks?
Medium number of networks, each with a medium number of hosts.
The use of Carrier Ethernet technologies to create metropolitan area networks (MANs) is most commonly called [blank].
Metro Ethernet
The use of Carrier Ethernet technologies to create metropolitan area networks (MANs) is most commonly called _________.
Metro ethernet
As cells become smaller, anetennas move from the tops of tall buildings or hills, to the tops of small buildings or the sides of large buildings, and finally to lamp posts, where they form
Microcells
When many delayed and distorted signals are collected at the receive end of a transmission, it is known as [blank].
Multipath
Another well-known application of circuit switching is the [blank] used to interconnect telephones within a building or office.
PSTN or Public Switched Telephone Network.
A _________ allows for access from all servers
Public Cloud
Another well-known application of circuit switching is the _________ used to interconnect telephones within a building or office.
Public switched telephone network (PSTN) PBX also accepted
______________ is defined by the Link Budget in designing wireless network.
Received Power
__________ is used in optimizing throughput for RF network design, which includes gains/losses from the transmit site, free space loss, and the receive site.
The link budget
The objective of the _______ generation of wireless communication is to provide failry high speed wireless communication to support multimedia, data, and video in addition to voice.
Third
The two types of channels that are available between the mobile unit and the base station are control and ___.
Traffic
A basic rule of thumb for radio-based communication is that the higher the frequency, the shorter transmission distance.
True
Another rule of thumb is that as the frequency increases, the easier it is to disrupt the signal.
True
Other rule of thumb is that the frequency increases the easier it is to disrupt the signal.
True
T/F: A basic rule of thumb for radio-based communication is that the higher the frequency, the shorter the transmission distance.
True
T/F: A frame goes inside of a segment.
True
T/F: A packet goes inside of a segment.
True
True or False. Wireless networks are more susceptible than wired networks to interference, signal loss, noise, and eavesdropping.
True
A _________________ VLAN line carried all types of VLANs
Trunk line
____ are the branches between exchanges.
Trunks
________ are the branches between exchanges.
Trunks
_________ was the first security protocol developed to address the limitations of WLAN security for mobile devices.
WAP
_______________ was the first security protocol developed to address the limitations of WLAN security for mobile devices.
WAP
When a mobile unit moves, it may connect with a different base station. This action is called ____________.
a handoff
When a mobile unit moves, it may connect with a different base station. This action is called...
a handoff
CSMA/CD is a method of:
access control
When using cellular networks... - adjacent cells must use the same frequencies - a single base station can serve multiple cells - non-adjacent cells are assigned different frequencies - adjacent cells are assigned different frequencies
adjacent cells are assigned different frequencies
When using cellular networks,
adjacent cells are assigned different frequencies.
When using cellular networks, _______ cells are assigned __________ frequencies.
adjacent; different [I guess you could also say non-adjacent; same]
A primary multiple access scheme used in cellular telephony is: - CDMA - TDMA - FDMA - all of the above
all of the above
With ____________, a cell is divided into a number of wedge shaped sectors, each with its own set of channels, typically three or six sectors per cell.
cell sectoring
With ________________, a cell is divided into a number of wedge shaped sectors, each with its own set of channels, typically three or six sectors per cell.
cell sectoring
Communication via circuit switching involves three phases: circuit establishment, ________, and circuit disconnect.
data transfer
Name one of the error compensation methods used today in wireless networks.
diversity techniques adaptive equalization forward error correction
Because of the limited frequencies available, a key design element of any cellular system is to _________________ - employ multiple access - use small cells - use as many frequencies as possible - limit the number of users at one time
employ multiple access
Planning to keep a circuit active is planning for _____________________
fault tolerance
Which basic LAN technology has the highest capacity?
gigabit ethernet
To identify a host on the Internet, each host is assigned a unique IP address, which consists of two logical components: a network component and a ________ component.
host
To identify a host on the internet, each host is assigned a unique IP address, which consists of two logical components: a network component and a [blank] component.
host component.
WLANs use one of three transmission techniques: spread spectrum, narrowband microwave, and ______________.
infrared
______ antennas are used as a theoretical model in designing wireless networks.
isotropic
Which type of diagram provides IP addresses:
logical topolgy
Fiber, copper and wireless are all forms of
media
As cells become smaller, antennas move from the tops of tall buildings or hills, to the tops of small buildings or the sides of large buildings, and finally to lamp posts, where they form ___________.
microcells
As cells become smaller, antennas move from the tops of tall buildings or hills, to the tops of small buildings or the sides of large buildings, and finally to lamp posts, where they form _________________.
microcells
____________ directs data from one network node to the next based on short path labels rather than longer IP network addresses.
multi-protocol label switching (MPLS)
When many delayed and distorted signals are collected at the receive end of a transmission, it is known as ________.
multipath
Two different technologies are used in wide area switched networks: circuit switching and _________ switching.
packet
Two different technologies are used in Wide Area Switched Networks: circuit switching and ____
packet switching
The lowest layer of the IEEE 802 reference model corresponds to the ____________of the OSI model and includes such functions as encoding/decoding of signals and bit transmission/reception.
physical layer
A _____________ cloud allows for access from all users
public
Systems using common channel signaling use a/an ___________ for connection setup.
separate virtual channel
There are basically four ways to divide the spectrum among active users: frequency division multiple access (FDMA), time division multiple access (TDMA), code division multiple access (CDMA), and
space division multiple access (SDMA).
A __________ can be described as a separate network of storage devices that are physically removed from, but still connected to, the network.
storage area network (SAN)
The objective of the _____________ generation of wireless communication is to provide fairly high-speed wireless communications to support multimedia, data and video in addition to voice.
third
The ideal design for cells in a cellular network is a hexagonal shape because ...
this makes all frequencies available to all cells (according to quiz)
The two types of channels that are available between the mobile unit and the base station are control and ___________.
traffic
The two types of channels that are available between the mobile unit and the base station are designated control and ______________.
traffic
