Which type of wire is commonly used in network cabling and telephone systems?Which type of wire is commonly used in network cabling and telephone systems?
Anonymous Quiz
11%
Fiber optic wire
13%
Coaxial wire
73%
Twisted pair wire
3%
Radio wire
Fiber optics uses _______ to carry signals.
Anonymous Quiz
6%
Electricity
0%
Sound
93%
Light
1%
Heat
Fiber optics allows for high-speed transmission of data, typically in the range of _______.
Anonymous Quiz
3%
1-10 Mbps
26%
100-1000 Mbps
11%
1-10 Gbps
60%
10-100 Gbps
One advantage of fiber optics is its _______.
Anonymous Quiz
79%
Low error rate
1%
Low cost
9%
Ability to carry sound waves
12%
All
Wireless radio uses _______ to carry signals.
Anonymous Quiz
5%
Electric wires
8%
Fiber optics
15%
Sound waves
73%
Electromagnetic spectrum
Which of the following is an example of a wireless transmission medium?
Anonymous Quiz
5%
Ethernet cable
6%
Fiber optics cable
58%
Bluetooth
31%
Satellite dish
One of the problems with microwave transmission, such as using satellites, is its susceptibility to interference by _______.
Anonymous Quiz
2%
Power outages
4%
Electromagnetic fields
54%
Weather conditions
0%
Radioactive materials
40%
All
What is a transponder in satellite transmission?
Anonymous Quiz
17%
The relay station on Earth
7%
The device that converts analog signals to digital signals
76%
The satellite component that receives the transmission from Earth
How does a hub distribute data to connected computers?
Anonymous Quiz
9%
It sends a private message to each computer
83%
It broadcasts the data to all computers
7%
It forwards data based on MAC addresses
2%
It routes data packets based on IP addresses
What is the function of a bridge in a network?
Anonymous Quiz
2%
Connects two similar MANs
1%
Connects two similar PANs
89%
Connects two similar LANs
2%
Connects two similar WANs
6%
Connects two similar WANs ,LANs ,PANs ,MANs
What is the primary role of a switch in a network?
Anonymous Quiz
18%
Routes data packets based on IP addresses
6%
Broadcasts data to all connected computers
76%
Forwards data based on MAC addresses
Which type of network card is attached to the motherboard and connected to an RJ45 cable?
Anonymous Quiz
5%
External NIC
2%
Wireless NIC
90%
Internal NIC
2%
Ethernet NIC
How does a wireless modem connect to the Internet?
Anonymous Quiz
20%
Via a cable connected to the phone system
14%
Through a satellite transmission
54%
Using the cell phone network
12%
By converting analog signals to digital signals
Which wireless transmission media requires line-of-sight transmission?
Anonymous Quiz
30%
Infrared waves
50%
Microwaves
18%
Radio waves
3%
X-rays
What is the role of a wireless access point in a network?
Anonymous Quiz
7%
Connects two similar LANs
19%
Routes data packets based on IP addresses
10%
Allows wire devices to connect to a wired
63%
Allows wireless devices to connect to a wired network
Which component of a satellite communication system amplifies and broadcasts microwave signals?
Anonymous Quiz
20%
Earth station
34%
Transponder
8%
Modem
38%
Communications satellite
has responsibility of transferring datagram from one node to physically adjacent node over a link
Anonymous Quiz
1%
Application Layer
9%
Transport Layer
82%
Data Link Layer
8%
Physical Layer
What is the responsibility of the link layer?
Anonymous Quiz
48%
Transferring datagrams between physically adjacent nodes
1%
Routing packets across the network
5%
Establishing a connection between two hosts
45%
All above
Which of the following is NOT considered a node in the context of the link layer?
Anonymous Quiz
7%
Hosts
9%
Routers
8%
Switches
57%
Data centers
19%
All Above