ISM 3004 EXAM 3 QUESTIONS AND VERIFIED
ACCURATE ANSWERS
Network - Answers - Collection of devices connected together via communications
devices and transmission media
LAN - Answers - Local Area of Network
WAN - Answers - Wide Area Network
Workstation - Answers - Network computer, laptops, smartphones, desktops
Server - Answers - a device that stores and transmits data to a client
Node - Answers - ANY device that is attached to the network: desktop, iPhone, or a
powerful network server
Protocol - Answers - Rules of the Road. Defines how every aspect of communications
happen.
Proprietary protocol - Answers - Only the people that invented it can use it. No one else
can use this protocol.
Open Protocol - Answers - A protocol available for anyone to use. Started in the 1980's.
Packet - Answers - A small unit of data transmitted over a network.
IP - Answers - Internet Protocol
IP Addresses - Answers - Assigned uniquely to every single device on the internet so
everyone knows who is who.
MAC address - Answers - A unique number that identifies this device from another on
the planet. They are never used twice, like a SSN. But it does not tell you where it is
located.
IP Address - what are they: - Answers - It not only tells you who you are, it tells you
where you are. First three dotted numbers identify what network my computer is on.
Bps - Answers - Bits per second
Kbps - Answers - Kilobits per second. Thousands. Equals 1024 bps.
,Mbps - Answers - Megabits per second. Millions. 1042kbps = 1 mbps
Gbps - Answers - Gigabits per second. Billions. 1024 MB's = 1 gbps
Bandwidth - Answers - capacity and speed of transmission of network connections
Copper Ethernet Cabling - Answers - Invented by Bob Metcalfe of Xerox in 1970's.
Wired LAN technology.
UTP - Answers - Unshielded Twisted Pair
CAT rating - Answers - CAT number tells you specifically how that cable has been
engineered and how fast it can safely transmit data. CAT 5 is minimum. CAT6 is current
standard.
Fiber Optic Ethernet Cabling - Answers - Long runs, high speed, made of glass, can go
between buildings and closets.
Why choose fiber optic? - Answers - Avoid electrical interference and Florida summers,
because it is made out of glass.
Ethernet Switch - Answers - Is what you se to connect a group of nodes together.
NIC - Answers - Network Interface Card
PoE - Answers - Power Over Ethernet. Utilized bored cables, saves money. Can use for
security cameras.
What is the backhoe problem? - Answers - You only have one cable and it get
destroyed by a digger in construction.
What is the solution for a backhoe problem? - Answers - Having multiple paths,
separate, different pathways instead of just one. Complex.
802.11g - Answers - Uses the 2.4-GHz frequency band and provides a maximum
theoretical throughput of 54 Mbps.
802.11n - Answers - May use either the 2.4-GHz or 5-GHz frequency range. 150 mbps
802.11ac - Answers - 433mbps-6.77gbps. 2.4 and 5 GHz (Current standard)
What common devices can interfere with WiFi networks? - Answers - 2.4 GHz is
affected. Microwave, cordless phone, baby monitor.
AP - Answers - Access Point It's from Cisco. Mounts to the ceiling.
, What is a site survey? - Answers - Walking around the building to find weak and strong
signals for best coverage.
What are Rogue AP's? - Answers - Where some install their own personal router at the
office that creates a security threat.
WEP - Answers - Wired Equivalent Privacy. NOT GOOD. Could be hacked in minutes.
What is a router? - Answers - Specialized computer, multiple network ports, software to
maintain info, links, and security features with firewalls, VPN, access control.
SOHO Routers - Answers - Linksys, D-Link, Apple. LAN - usually 4 Gig-E ports for your
local devices, Uplink port, USB port, Basic level Firewall, VPN.
Enterprise Cisco - Answers - Routers form network core, very fast connections. Routers
connect enterprise LAN to internet. Departmental LANs - connect to enterprise core at
high speed, built using Ethernet Switches, Nodes connect to switches.
Client-Server Model - Answers - Clear division of labor, IT does the services, client/user
just receives it.
Peer-to-peer service model - Answers - Every computer could share its resources.
Shared. problem is that others may not be able to access my files once I leave home for
the day. Reduced security.
Hardware system - Answers - Standard workstation, specialized and rack mounted.
Server operating systems - Answers - Windows server and linux
Server Softwares - Answers - Microsoft Exchange Server, Apache, Microsoft SQL
Server, Oracle, MySQL
UPS - Answers - Uninterruptible Power Supply
Online UPS - Answers - Devices are constantly powered through the UPS's battery
Near Line UPS - Answers - Running off of the electrical power fro the wall when that
drops in just a few milliseconds, the battery hops in and takes over.
RAID - Answers - Redundant Array of Inexpensive Disks
RAID 1 - Answers - You have exactly two hard drives in a computer system. Any time
you write data, the RAID system writes it to both of the hard drives. Exact same data.
You are spending twice as much on data but when one fails, you have an exact replica.
ACCURATE ANSWERS
Network - Answers - Collection of devices connected together via communications
devices and transmission media
LAN - Answers - Local Area of Network
WAN - Answers - Wide Area Network
Workstation - Answers - Network computer, laptops, smartphones, desktops
Server - Answers - a device that stores and transmits data to a client
Node - Answers - ANY device that is attached to the network: desktop, iPhone, or a
powerful network server
Protocol - Answers - Rules of the Road. Defines how every aspect of communications
happen.
Proprietary protocol - Answers - Only the people that invented it can use it. No one else
can use this protocol.
Open Protocol - Answers - A protocol available for anyone to use. Started in the 1980's.
Packet - Answers - A small unit of data transmitted over a network.
IP - Answers - Internet Protocol
IP Addresses - Answers - Assigned uniquely to every single device on the internet so
everyone knows who is who.
MAC address - Answers - A unique number that identifies this device from another on
the planet. They are never used twice, like a SSN. But it does not tell you where it is
located.
IP Address - what are they: - Answers - It not only tells you who you are, it tells you
where you are. First three dotted numbers identify what network my computer is on.
Bps - Answers - Bits per second
Kbps - Answers - Kilobits per second. Thousands. Equals 1024 bps.
,Mbps - Answers - Megabits per second. Millions. 1042kbps = 1 mbps
Gbps - Answers - Gigabits per second. Billions. 1024 MB's = 1 gbps
Bandwidth - Answers - capacity and speed of transmission of network connections
Copper Ethernet Cabling - Answers - Invented by Bob Metcalfe of Xerox in 1970's.
Wired LAN technology.
UTP - Answers - Unshielded Twisted Pair
CAT rating - Answers - CAT number tells you specifically how that cable has been
engineered and how fast it can safely transmit data. CAT 5 is minimum. CAT6 is current
standard.
Fiber Optic Ethernet Cabling - Answers - Long runs, high speed, made of glass, can go
between buildings and closets.
Why choose fiber optic? - Answers - Avoid electrical interference and Florida summers,
because it is made out of glass.
Ethernet Switch - Answers - Is what you se to connect a group of nodes together.
NIC - Answers - Network Interface Card
PoE - Answers - Power Over Ethernet. Utilized bored cables, saves money. Can use for
security cameras.
What is the backhoe problem? - Answers - You only have one cable and it get
destroyed by a digger in construction.
What is the solution for a backhoe problem? - Answers - Having multiple paths,
separate, different pathways instead of just one. Complex.
802.11g - Answers - Uses the 2.4-GHz frequency band and provides a maximum
theoretical throughput of 54 Mbps.
802.11n - Answers - May use either the 2.4-GHz or 5-GHz frequency range. 150 mbps
802.11ac - Answers - 433mbps-6.77gbps. 2.4 and 5 GHz (Current standard)
What common devices can interfere with WiFi networks? - Answers - 2.4 GHz is
affected. Microwave, cordless phone, baby monitor.
AP - Answers - Access Point It's from Cisco. Mounts to the ceiling.
, What is a site survey? - Answers - Walking around the building to find weak and strong
signals for best coverage.
What are Rogue AP's? - Answers - Where some install their own personal router at the
office that creates a security threat.
WEP - Answers - Wired Equivalent Privacy. NOT GOOD. Could be hacked in minutes.
What is a router? - Answers - Specialized computer, multiple network ports, software to
maintain info, links, and security features with firewalls, VPN, access control.
SOHO Routers - Answers - Linksys, D-Link, Apple. LAN - usually 4 Gig-E ports for your
local devices, Uplink port, USB port, Basic level Firewall, VPN.
Enterprise Cisco - Answers - Routers form network core, very fast connections. Routers
connect enterprise LAN to internet. Departmental LANs - connect to enterprise core at
high speed, built using Ethernet Switches, Nodes connect to switches.
Client-Server Model - Answers - Clear division of labor, IT does the services, client/user
just receives it.
Peer-to-peer service model - Answers - Every computer could share its resources.
Shared. problem is that others may not be able to access my files once I leave home for
the day. Reduced security.
Hardware system - Answers - Standard workstation, specialized and rack mounted.
Server operating systems - Answers - Windows server and linux
Server Softwares - Answers - Microsoft Exchange Server, Apache, Microsoft SQL
Server, Oracle, MySQL
UPS - Answers - Uninterruptible Power Supply
Online UPS - Answers - Devices are constantly powered through the UPS's battery
Near Line UPS - Answers - Running off of the electrical power fro the wall when that
drops in just a few milliseconds, the battery hops in and takes over.
RAID - Answers - Redundant Array of Inexpensive Disks
RAID 1 - Answers - You have exactly two hard drives in a computer system. Any time
you write data, the RAID system writes it to both of the hard drives. Exact same data.
You are spending twice as much on data but when one fails, you have an exact replica.
