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WorksheetsCh. 2 Exam Review
Total questions: 25
Worksheet time: 13mins
What is the difference between a "hub" and a "switch"?
Switches are used in homes, while hubs are used in businesses.
A switch will send data only to a target computer, while a hub broadcasts data to all connected computers.
A switch can pass information between different networks, while a hub works only on a LAN.
A switch supports wireless networks, while a hub supports wired networks.
What type of wire does an Ethernet cable use?
Twisted Pair wire
Fiber Optic wire
Coax cable
Ether wire
Where are Fiber Optic cables often used?
To support Wireless Access Points (WAP)
To enable Near Field Communications (NFC)
To connect LANs inside your home
To connect networks that are far apart or that have high data volumes
Which type of transmission can send data in both directions on the same channel?
Baseband transmissions
Broadband transmissions
Uni-directional transmissions
Fiber Optic transmissions
Routers are located at gateways, the places where two or more networks connect.
True
False
Which protocol helps to direct the way data is sent and received?
NTP
TCP / IP
POP
FTP
Which protocol is a faster, but less reliable transport protocol?
UDP
TCP
HTTP
POP
Which protocol is typically used for the World Wide Web (WWW)?
WWW
IP
HTTP
FTP
Which protocol is primarily used to transport files along the Internet?
FTP
WWW
HTTP
SSL
Which of the following protocols are NOT involved with email?
IMAP
POP3
FTP
SMTP
What happens if a physical wire between connected computers is damaged or unplugged?
It would disconnect a single computer from the network/Internet
It would disconnect a group of computers from the network/Internet
It would disconnect the entire network from the Internet
Depending on the location of the wire, it could cause all of these problems
A network's _________ is the central connection point to the Internet.
router
client
hub
switch
Which of the following could be scaled in a network system?
router
hubs
switches
All of these can typically be scaled
A system that responds to failures in a way that allows you to continue using the network without interruption is called what?
Network Scalable
Fault Tolerant
Routable
Redundant Network
There are no downsides to the concept of redundancy.
True
False
Which of the following equations represents a speedup value?
speedup = sequential_runtime / parallel_runtime
speedup = parallel_runtime / sequential_runtime
speedup = parallel_runtime / distributed_runtime
speedup = distributed_runtime / sequential_runtime
In a parallel computing system, the overall process will take as long as the longest task.
True
False
Which type of computing uses a single computer with multiple processors to process different tasks at the same time?
Sequential Computing
Distributed Computing
Parallel Computing
Network Computing
Which type of computing will use the resources from multiple computers to process small parts of a larger task?
Distributed Computing
Parallel Computing
Sequential Computing
Speedy Computing
You will get a higher speedup value if your program can accomplish more tasks in parallel.
True
False
What do we call the physical card that connects a computer to a network?
Connection Card
Network Adaptor
Computer Adaptor
Physical Card
What is one advantage of using a wireless network over a wired network?
You don't need to route wires to every physical location that needs a connection
Wireless networks are faster
Wireless networks are more secure
All of these are advantages of wireless networks
A "broadband" signal needs two channels to send and receive data.
True
False
__________ refers to the network command for how to format the conversation between two devices.
Addressing
Protocol
Media
Domain
