1|Page
WGU C172 Network And Security -
Foundations; PA And OA Set |
Comprehensive Questions &
Answers
It is a network of users that share computer resources in a limited area. - correct-
answer-LAN
Local Area Network - correct-answer-LAN
How are Local Area Networks defined? - correct-answer-In terms of protocol and
the topology used for accessing the network.
A set of rules established for users to exchange information - correct-answer-
Protocol
,2|Page
Which networking protocol is used in most modern computer networks? - correct-
answer-Ethernet
A carrier sense multiple access with collision detection protocol for local area
networks - correct-answer-Ethernet
Must have the capability to detect data collisions (collision detection) to avoid two
or more computers from attempting to broadcast a message at the same time. -
correct-answer-Ethernet systems
Provide grouping of information for transmission - correct-answer-packet
What does the header of a packet consist of? - correct-answer-The preamble,
start frame delimiter, destination and source addresses, and length/type field
Preamble, start frame delimiter, destination mac address, source address,
length/type, data, pad, and frame check sequence. - correct-answer-The structure
of the Ethernet frame
,3|Page
An alternating pattern of 1s and 0s used for synchronization - correct-answer-The
preamble of an Ethernet packet
A binary 8 bit sequence of 10101011 that indicates the start of the frame -
correct-answer-The start frame delimiter of an Ethernet packet
The MAC address associated with the network adapter or Ethernet network
interface card (NIC) - correct-answer-The destination and source MAC addresses
of an Ethernet packet
An indication of the number of bytes in the data field if this value is less than
1500, or if the number is greater than 1500, and indication of the type of data
format such as IP and IPX - correct-answer-The length/type of the Ethernet packet
frame
The variable length of data being transferred from the source to the destiontion -
correct-answer-The data of the Ethernet packet frame
A field used to bring the total number of bytes up to the minimum of 46 if the
data field is less than 46 bytes - correct-answer-The pad of the Ethernet packet
frame
, 4|Page
A 4 byte CRC value used for error detection - correct-answer-The frame check
sequence of the Ethernet packet frame
What is the minimum length of the Ethernet frame from destination MAC address
through the frame check sequence? - correct-answer-64 bytes
a device that relays the wireless signals from an access point or wireless router
into areas with a weak signal or no signal at all - correct-answer-range extender
Where can range extenders be used to improve connectivity? - correct-answer-
Stores, warehouses, and public places using hotspots
a limited geopgraphic area that provides wireless access for the public - correct-
answer-hot spot
What basic steps can help secure a wireless home network? - correct-answer-"1.
Change the default factory password
2. Change the default SSID
WGU C172 Network And Security -
Foundations; PA And OA Set |
Comprehensive Questions &
Answers
It is a network of users that share computer resources in a limited area. - correct-
answer-LAN
Local Area Network - correct-answer-LAN
How are Local Area Networks defined? - correct-answer-In terms of protocol and
the topology used for accessing the network.
A set of rules established for users to exchange information - correct-answer-
Protocol
,2|Page
Which networking protocol is used in most modern computer networks? - correct-
answer-Ethernet
A carrier sense multiple access with collision detection protocol for local area
networks - correct-answer-Ethernet
Must have the capability to detect data collisions (collision detection) to avoid two
or more computers from attempting to broadcast a message at the same time. -
correct-answer-Ethernet systems
Provide grouping of information for transmission - correct-answer-packet
What does the header of a packet consist of? - correct-answer-The preamble,
start frame delimiter, destination and source addresses, and length/type field
Preamble, start frame delimiter, destination mac address, source address,
length/type, data, pad, and frame check sequence. - correct-answer-The structure
of the Ethernet frame
,3|Page
An alternating pattern of 1s and 0s used for synchronization - correct-answer-The
preamble of an Ethernet packet
A binary 8 bit sequence of 10101011 that indicates the start of the frame -
correct-answer-The start frame delimiter of an Ethernet packet
The MAC address associated with the network adapter or Ethernet network
interface card (NIC) - correct-answer-The destination and source MAC addresses
of an Ethernet packet
An indication of the number of bytes in the data field if this value is less than
1500, or if the number is greater than 1500, and indication of the type of data
format such as IP and IPX - correct-answer-The length/type of the Ethernet packet
frame
The variable length of data being transferred from the source to the destiontion -
correct-answer-The data of the Ethernet packet frame
A field used to bring the total number of bytes up to the minimum of 46 if the
data field is less than 46 bytes - correct-answer-The pad of the Ethernet packet
frame
, 4|Page
A 4 byte CRC value used for error detection - correct-answer-The frame check
sequence of the Ethernet packet frame
What is the minimum length of the Ethernet frame from destination MAC address
through the frame check sequence? - correct-answer-64 bytes
a device that relays the wireless signals from an access point or wireless router
into areas with a weak signal or no signal at all - correct-answer-range extender
Where can range extenders be used to improve connectivity? - correct-answer-
Stores, warehouses, and public places using hotspots
a limited geopgraphic area that provides wireless access for the public - correct-
answer-hot spot
What basic steps can help secure a wireless home network? - correct-answer-"1.
Change the default factory password
2. Change the default SSID
