Chapter 15: Supporting Network Hardware

False
True/False: A WLAN covers a large geographical area and is made up of many smaller networks.
False
True/False: Phone cords are a type of twisted-pair cable and use an RJ-45 connector.
False
True/False: 10Base5 cabling runs at speeds up to 1 Gbps and distances to 500 meters.
True
True/False: A punchdown tool is used to wire twisted-pair cabling to a keystone jack.
False
True/False: Switches are slowly being replaced by hubs, which are newer technology.
MAN
What network type covers a large campus or city?
star bus
Which physical topology uses a centralized device to manage traffic on the network?
mesh; ring; bus; star bus
you share the cable infrastructure with your neighbors
Which of the following is true about cable Internet?
you share the cable infrastructure with your neighbors; you need filters on every phone jack; fiber optic cabling is required; provides up to 2.3 Mbps of bandwidth
RJ-45 port
What does a 1000BaseT NIC use to connect to a network cable?
HDMI port; RJ-45 port; 10BaseT port; Half duplex port
frame
What is the unit of information called when a network adapter adds the source and destination MAC address to the segment of data before it is transmitted on the network?
frame; packet; bit; segment
switch
What type of network device keeps a table of the MAC addresses of the devices connected to it?
hub; router; NIC; switch
bridge
What type of device do you need if you want to connect two network segments together such as a wireless network and a wired network?
hub; NAS; repeater; bridge
1000BaseFX
What cable system utilizes a fiber-optic cable?
10GBaseT; 1000BaseFX; 10Base2; 10Base5
Cat-6
If you’re looking to install Gigabit Ethernet, what cabling system would you use?
coaxial; thinnet; Cat-6; RG-59
it is a good choice for backbone networks
Which statement regarding 10-Gigabit Ethernet is accurate?
you can use Cat-5e or Cat-6 cabling; it is a good choice for backbone networks; it is sometimes called Fast Ethernet; coaxial is a good choice for cabling
to test a network cable
Under what circumstance might you use an Ethernet loopback plug?
to test a USB port; to capture network packets; to test a network cable; to find the max speed of a connection
patch panel
In order to terminate multiple network cables that converge in one location such as an electrical closet or server room, what should you use?
patch panel; RJ-45 jack; terminal adapter; loopback port
it can be used to connect two PCs together
What statement regarding crossover cables is accurate?
it’s normally used to connect a computer to a hub or switch; you use the T568B wiring standard on both ends; it is required to connect two Gigabit Ethernet switches together; it can be used to connect two PCs together
the twists reduce crosstalk
Why are there twists in the wires that are used for network cabling?
the twists increase the cable strength; the twists reduce crosstalk; the twists make it easier to punchdown the cable; the twists reduce the amount of copper needed
ifconfig -a
What command will display a list of active and inactive network interfaces on Unix, Linux, and Mac OSX?
ipconfig -a; ifconfig -a; netsh show interfaces; ip list network
tracert
If you are experiencing issues reaching a target destination network, and you need to display each hop to the destination, what command should you use?
ipconfig; ifconfig; tracert; nslookup
net user
What command manages user accounts on the local system in Windows?
net user; net localuser; useradd; netsh user
100BaseFX
What version of Ethernet utilizes a fiber-optic cable and has a transmission speed of 100 Mbps?
100BaseTX; 100BaseFX; 1000BaseFX; 100BaseCX
it requires line of sight connectivity
What statement regarding satellite connections is accurate?
it provides higher throughput than other connections; it is only available in metropolitan areas; it provides low latency connection; it requires line of sight connectivity
SDSL
What DSL technology provides equal bandwidth in both directions?
ADSL; VDSL; SDSL; HDSL
T568A; T568B
What two standards have been established for wiring twisted-pair cabling and RJ-45 connectors?
T568A; T568B; TIA/EIA 586; T568C
straight-through cable; patch cable
What two terms describe the type of network cable that is used for connecting a computer to a switch or other network device?
crossover cable; power over Ethernet cable; straight-through cable; patch cable
White/green, green; White/orange, orange
In the T568B wiring scheme, what two color pairs are used for transmit and receive on a 100BaseT network?
White/green, green; White/brown, brown; White/orange, orange; White/blue, blue
ipconfig; ifconfig
What two commands are used to display TCP/IP configuration on Windows and Unix/Linux/Mac OSX operating systems, respectively?
net show; ipconfig; show ip stat; ifconfig
RG-6; RG-59
What two different types of coaxial cable have been used for cable TV?
RG-45; RG-6; RG-59; RG-PVC
broadband
A networking technology that carries more than one type of signal
throughput
The average of the actual speed of a network
ferrite clamp
A device that helps to eliminate electromagnetic interference (EMI)
latency
Delays in network transmission
Fast Ethernet
Operates at 100 Mbps and uses STP or UTP cabling, rated CAT-5 or higher
patch cable
Used to connect a computer to a switch or other network device
STP
Uses a covering or shield around wire pairs
switch
A device that keeps a table of MAC addresses to port mappings
repeater
A device that amplifies and retransmits signal to a wider coverage area
DSL
Uses ordinary copper phone lines and a range of frequencies on the copper wire to provide internet