Chapter 6 Review Questions Flashcards
What cabling is immune to electricomagnetic or radio-frequency interference?
Twisted-paircabling
CSMA/CD
Broadband coaxial cabling
Fibre-optic cabling
Fibre Optic Cabling
Which of the following is a type of connector for coaxial cabling?
RG-6
RG-59
BNC
SC
BNC
You need to put a connector on the end of an ethernet crossover cable. The existing end has a white and green colored wire at pin 1. What color do you need to make pin 1 on the new end?
White/Green
Green
White/orange
Orange
A crossover cable would switch pins 1 and 3 therefore a white orange colored wire would be needed on the other end.
What is a type of media access method used by NIC’s that listens to or senses the cable for traffic and sends only when it hears that no one else is transmitting?
Token passing
CSMA/CD
CSMA/CA
Demand Priority
CSMA/CD
What is the lowest grade UTP that is rated for 100 Mps transmission?
CAT-5
CAT-5e
CAT-6
CAT-6a
CAT-5
A physical star topology consists of several work stations that branch off a central device called a what?
NIC
Bridge
Router
Hub
A hub or a switch
Of all the network cabling options, which offers the longest possibe segment length?
Unshielded Twisted-Pair
Coaxial
Fibre-Optic
Shielded Twisted-Pair
Fibre-optic (it can travel for several kilometers as it experiences less interference than others
What device transfers packets across multiple netwroks and uses tables to store network addresses to determine the best destination?
Routers
Bridges
Switches
Hubs
Routers
Which of the following network devices is capable of creating VLANS?
Firewalls
Repeater
Unmanaged Switch
Managed Switch
A managed switch is capable of creating VLANS using its management software
Which of the folllowing wireless communications standards is often described in terms of a wireless personal area network?
Bluetooth
Infrared
Cellular
Ethernet
Bluetooth
Which of the following statements are NOT associated with a star network?
A single cable break can cause complete network disruption
All devices connect to a central device
It uses a single backbone computer to connect all network devices
It uses dual-ring configuration
The only true statement is that all devices connect to a central device.
If you’re going to run a network cable in the space above the drop ceiling in your office, which type of cable should you use?
Plenum
PVC
Coaxial
Fibre-Optic
For areas that require a fire retardent coating plenum must be used.
Which of the following connector types is a MFF connector
BNC
ST
SC
LC
LC - Local connector is a mini form factor (MFF) connector.
Which ethernet specification would you be running if you needed to make a connection of 10 Gbps over a distance of 5 kilometers.
10GbaseER
10GbaseT
10GbaseSR
10GbaseLR
10GbaseER (think of E as extended)
You have been asked to configure a full mesh network with seven computers. How many connections will this require?
6
7
21
42
21
if c = connections then, c = (c x ( c - 1 ) / 2
If you’re installing a network at a friends house, and it’s impossible to run a network cable from one point in the house to another. They do not want to use wireless networking . What is the best option to get connectivity between the two points?
Power over ethernet injector
Power over ethernet switch
Ethernet over power
Bridge
Ethernet over power can transmit network signals over power lines within a closed circuit.It would be the best option.
What type of device will block unwanted traffic from your network using a set of rules called an ACL?
Router
Firewall
Bridge
NAS
A firewall will block unwanted traffic using a set of rules called an access control list.
Which type of coaxial cable is recommended for cable TV?
RG-6
RG-8
RG-58
RG-59
RG-6 and RG-59 can both run cable tv however RG-6 would be better as it can run longer distances and use digital signals. RG-59 is used for analogue signals.
Which of the following devices work with MAC addresses to determine what to do with network traffic?
Hub
Router
Bridge
Switch
Bridges and switches are Layer 2 devices and therefore they work with hardware (MAC). Hubs operate at layer 1 with bits and routers operate at layer 3 and work with logical IP address.
Transmitting at 10 Gbps, how far can signals on an MFF cable travel?
100m
550m
1km
40km
Multimode fibre (MMF) can transmit up to 550m, depending on the ethernet specification. If you needed to transmit up to 40km you would use SMF
