Computer Networks Final Exam Q&A
A network device is capable of simultaneously transmitting and receiving data. Which mode is that
device operating in? - =Full-Duplex
A switch receives a frame with a destination MAC address that is unknown. How will the switch handle
the frame? - =It will flood the frame out all ports, except the port is was received on
What role does the frame check sequence perform in an Ethernet frame? - =Error detection
A MAC address is 48 bits in length. The first 24 bits of a MAC address is compromised of the OUI. What is
significant about the OUI? - =It identifies the manufacturer of the NIC
A switch receives a frame. The source MAC address is unknown when the frame is received. How will
the switch handle that frame? - =It will add the source MAC address to its ARP table and forward the
frame
You need to provide network connectivity to 150 client computers that will reside in the same sub
network, and each client computer must be allocated dedicated bandwidth. Which device should you
use to accomplish the task? - =Switch
All of the following are used to define a socket between two network devices, except: - =Source and
MAC addresses
Which of the following is an example of a routed protocol? - =IP
Select the correct statement regarding an 8-port Ethernet hub. - =Includes one collision domain and one
broadcast domain
For an interface on a router to forward traffic, the interface must: - =Have an IP address assigned
The route to be used when no other route matches a packet's destination IP address. - =Default route
, Routers maintain a list of all known routes in a routing table. - =TRUE
Which of the following is the correct "/" notation for a subnet mask of 255.255.255.252? - =/30
The only possible values for an octet in a subnet mask are 0, 128, 224, 240, 248, 252, 254, and 255. -
=TRUE
The subnet mask /19 has: - =13 host bits
A network that should not be routed on the public Internet: - =Private IP network
The following subnets could be used in the same private network. 172.16.128.0/18 and 172.16.144.0/20
- =FALSE
A router receives a frame from another router and determines the frame has errors. The router will: -
=Discard the frame/packet
The subnet mask 255.255.128.0 has approximately ______ as many hosts addresses as subnet mask
255.255.0.0. - =Half
In general, the performance of a LAN declines with increased lengths of connections and/or the number
of devices using it. - =TRUE
Two general approaches to connecting multiple LANs are bridges and switches. - =FALSE
On a bus topology LAN, each station can send and receive data to or from another station independent
of other bus activity. - =FALSE
Network topology refers to the way individual end stations access the network prior to transmission of
user data. - =FALSE
A network device is capable of simultaneously transmitting and receiving data. Which mode is that
device operating in? - =Full-Duplex
A switch receives a frame with a destination MAC address that is unknown. How will the switch handle
the frame? - =It will flood the frame out all ports, except the port is was received on
What role does the frame check sequence perform in an Ethernet frame? - =Error detection
A MAC address is 48 bits in length. The first 24 bits of a MAC address is compromised of the OUI. What is
significant about the OUI? - =It identifies the manufacturer of the NIC
A switch receives a frame. The source MAC address is unknown when the frame is received. How will
the switch handle that frame? - =It will add the source MAC address to its ARP table and forward the
frame
You need to provide network connectivity to 150 client computers that will reside in the same sub
network, and each client computer must be allocated dedicated bandwidth. Which device should you
use to accomplish the task? - =Switch
All of the following are used to define a socket between two network devices, except: - =Source and
MAC addresses
Which of the following is an example of a routed protocol? - =IP
Select the correct statement regarding an 8-port Ethernet hub. - =Includes one collision domain and one
broadcast domain
For an interface on a router to forward traffic, the interface must: - =Have an IP address assigned
The route to be used when no other route matches a packet's destination IP address. - =Default route
, Routers maintain a list of all known routes in a routing table. - =TRUE
Which of the following is the correct "/" notation for a subnet mask of 255.255.255.252? - =/30
The only possible values for an octet in a subnet mask are 0, 128, 224, 240, 248, 252, 254, and 255. -
=TRUE
The subnet mask /19 has: - =13 host bits
A network that should not be routed on the public Internet: - =Private IP network
The following subnets could be used in the same private network. 172.16.128.0/18 and 172.16.144.0/20
- =FALSE
A router receives a frame from another router and determines the frame has errors. The router will: -
=Discard the frame/packet
The subnet mask 255.255.128.0 has approximately ______ as many hosts addresses as subnet mask
255.255.0.0. - =Half
In general, the performance of a LAN declines with increased lengths of connections and/or the number
of devices using it. - =TRUE
Two general approaches to connecting multiple LANs are bridges and switches. - =FALSE
On a bus topology LAN, each station can send and receive data to or from another station independent
of other bus activity. - =FALSE
Network topology refers to the way individual end stations access the network prior to transmission of
user data. - =FALSE
