banjo assignments ch 2
If one computer is trying to reach another on a ________________ network, the computer will send the message to every other computer on the network, consuming bandwidth for each transfer. If one computer is trying to reach another on a __________________ network, the device recognizes which computer the information is supposed to go to and only sends it to that computer.
hub-based ; switch-based
A switch does what a hub does, but more efficiently. By paying attention to the traffic that comes across it, it can __________________________________________
learn which computers are connected to which port.
Routers maintain routing tables composed of IP network addresses and interface pairs to determine ________________________________________
where to forward packets on an internetwork
What information is found in a routing table?
Network addresses and interfaces
Some switches have a dedicated port for _____________ to another switch
uplinking
The following are the differences between routers and switches
--Routers work with logical (IP) addresses, switches work with physical (MAC) addresses --Routers use routing tables, switches use switching tables --Routers connect LANs, switches connect computers
Which of the following describe the function of routers? (Choose all that apply.)
-Connect LANs -Work with packets and IP addresses
Which of the following is a task performed by a NIC and its driver? (Choose all that apply.)
-Provides a connection to the network medium -Receives packets from the network protocol and creates frames -Adds error-checking data to the frame
Under which circumstances does a NIC allow inbound communications to pass through the interface? (Choose all that apply.)
-The destination MAC address matches the built-in MAC address. -The destination MAC address is all binary 1s.
Which of the following is true about routers? (Choose all that apply.)
-Use default routes for unknown network addresses - Forward unicasts
Unlike a hub, a ___________Mbps switch will allocate a full ____________Mbps to each of its ports. So regardless of the number of PCs transmitting, users will always have access to the maximum amount of bandwidth.
10/100 ; 10/100
Which of the following is a common operational speed of a wireless network?
11 Mbps
Company ABC is using a hub with a bandwidth of 300Mbps. If there are ________________ employees who are all active on the network, then everyone would get approximately _______________.
300; 1Mbps
Which of the following describes how devices connected to a switch use the speed at which the switch can transmit data?
Dedicated bandwidth
If a router receives a packet with a destination network address unknown to the router, what does the router do?
Discard the packet
What feature of a switch allows devices to effectively communicate at 200 Mbps on a 100 Mbps switch?
Full-duplex mode
To which device is a wireless access point most similar in how it operates?
Hub
. Which of the following is the purpose of an SSID?
Identifies a wireless network
What's the purpose of an RTS signal in wireless networking?
It allows a client to notify the AP that it's ready to send data.
How does a protocol analyzer capture all frames?
It configures the NIC to operate in promiscuous mode.
Most small business and home networks use a device typically called a wireless router that combines the functions of all the following EXCEPT:
LAN
Which of the following is a likely indicator light on a hub? (Choose all that apply.)
Link status Connection speed Activity
. In Windows 10, which of the following displays information about currently installed NICs?
Network Connections
Common types of hubs used in networking are all the following
Network Hubs Intelligent Hubs Passive Hubs
Which of the following is true of a repeater?
Receives bit signals and strengthens them
You currently have 15 switches with an average of 20 stations connected to each switch. The switches are connected to one another so that all 300 computers can communicate with each other in a single LAN. You have been detecting a high percentage of broadcast frames on this LAN. You think the number of broadcasts might be having an impact on network performance. What should you do?
Reorganize the network into smaller groups and connect each group to a router.
Wireless NICs connect to networks using
SSID
What does a switch use to create its switching table?
Source MAC addresses
What purpose does the timestamp serve in a switching table?
Tells the switch when to delete an entry
Which of the following is true of a hub? (Choose all that apply.)
Transmits regenerated signals to all connected ports, usually has 4 or more ports
When you use the command line prompt (tracert.exe) to trace the path a packet takes to its destination, you will likely see a listing of each router the packet must travel through between your computer and an Internet server.
True
With switches, each port gets dedicated bandwidth instead of having to share bandwidth with all ports.
True
The effective bandwidth is about half of effective bandwidth found on physical networks. This statement is true about:
Wireless APs
Networking medium might be:
airwaves, copper wire, or fiber-optic cable
When tracing a route to determine the path the packets take, the trace may repeatedly time out. In the command prompt output, the time out is indicated by:
an *
Dedicated bandwidth is usually symmetrical. This means that the connection _________________________________
can send and receive data at the same high speed.
Network interface cards create and mediate the connection between the ________________ and ______________
computer ; network medium
Which of the following describes how devices connected to a hub use the speed at which the hub can transmit data?
Bandwidth sharing
Which of the following is the unit of measurement by which a hub's bandwidth is usually specified?
Bits per second
