FBLA Networking Infrastructures
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Router - CORRECT ANSWER - -This device sends and receives information about the
Network layer
-This device can measure the distance to a remote network
-a networking device that forwards data packets between computer networks
-perform the traffic directing functions on the Internet (breaks up collision domains and
broadcast domains)
Transport - CORRECT ANSWER - -The layer that creates a virtual circuit before
transmitting between two end stations
-This layer supports flow control and sequencing
Bridge or Switch - CORRECT ANSWER - -This device uses hardware addresses to filter a
network
-This device creates many smaller collision domains, but the network is still one large broadcast
domain
Network - CORRECT ANSWER - Logical addressing is used at this layer
Data Link (Mac Sublayer) - CORRECT ANSWER - Hardware addresses are defined at
this layer
,Hub - CORRECT ANSWER - -This device creates one big collision domain and one large
broadcast domain
-a common connection point for devices in a network
-devices commonly used to connect segments of a LAN
-A network device used to connect several computers to a network. Commonly used in a twisted-
pair LAN. A cable runs from each computer's NIC to the hub. The hub is often connected to a
router.
-create one collision domain and one broadcast domain
-A physical star topology consists of several workstations that branch off a central device
What advantage does a switch have over a hub? - CORRECT ANSWER - A switch
recognizes frame boundaries and pays attention to the destination MAC address of the incoming
frame as well as the port on which it was received.
Which device is used to segment a network? - CORRECT ANSWER - A switch.
Hubs don't segment a network; they just connect network segments together. Repeaters don't
segment the network; they repeat a signal and allow the distance covered to be increased.
Which of the following devices can work at both Layers 2 and 3 of the OSI model? - CORRECT
ANSWER - A switch is typically just a Layer 2 device segmenting the network by using
MAC addresses. However, some higher‐end switches can provide Layer 3 services
What is an advantage of using DHCP in a network environment? - CORRECT ANSWER -
Remember that DHCP servers assign IP addresses to hosts. Thus DHCP allows easier
administration than providing IP information to each host by hand (called static IP addressing).
, Which device should be used if you need to send incoming packets to one or more machines that
are hidden behind a single IP address? - CORRECT ANSWER - A load balancer uses a
little trickery and sends incoming packets to one or more machines that are hidden behind a
single IP address. Modern load-balancing routers can use different rules to make decisions about
where to route traffic, which can be based on least load, fastest response times, or simply
balancing requests.
What role does the "A" record in a Domain Name Service (DNS) server have in your network? -
CORRECT ANSWER - DNS translates human names to IP addresses for routing your
packet through the Internet.
What is the most common use for a web proxy? - CORRECT ANSWER - Web cache, of
course! Most proxy programs provide a means to deny access to certain URLs in a blacklist, thus
providing content filtering, usually in corporate environments.
Which is not an advantage of network segmentation? - CORRECT ANSWER - The first 3
options all aid in boosting network performance, so the only option left is broadcast storms.
Increased traffic will increase LAN congestion
Which device creates separate collision domains and a single broadcast domain? - CORRECT
ANSWER - Switches create separate collision domains, but a single broadcast domain.
Remember that routers provide a separate broadcast domain for each interface.
Which device by default does not forward any broadcast or multicast packets? - CORRECT
ANSWER - Routers don't forward any broadcast or multicast packets by default, but they
do have plenty of other functions like using the logical address, using access lists, and providing
Layer 2 bridging functions.
Which type of server in your network uses pointer and A records? - CORRECT
ANSWER - A DNS server uses many types of records. An "A" record is a hostname to IP
address record and a pointer record is an IP address to hostname record.
Users on your network are saturating your bandwidth because they are using too many nonwork
related sites. What device would limit the availability of the types of sites that users on a LAN
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Router - CORRECT ANSWER - -This device sends and receives information about the
Network layer
-This device can measure the distance to a remote network
-a networking device that forwards data packets between computer networks
-perform the traffic directing functions on the Internet (breaks up collision domains and
broadcast domains)
Transport - CORRECT ANSWER - -The layer that creates a virtual circuit before
transmitting between two end stations
-This layer supports flow control and sequencing
Bridge or Switch - CORRECT ANSWER - -This device uses hardware addresses to filter a
network
-This device creates many smaller collision domains, but the network is still one large broadcast
domain
Network - CORRECT ANSWER - Logical addressing is used at this layer
Data Link (Mac Sublayer) - CORRECT ANSWER - Hardware addresses are defined at
this layer
,Hub - CORRECT ANSWER - -This device creates one big collision domain and one large
broadcast domain
-a common connection point for devices in a network
-devices commonly used to connect segments of a LAN
-A network device used to connect several computers to a network. Commonly used in a twisted-
pair LAN. A cable runs from each computer's NIC to the hub. The hub is often connected to a
router.
-create one collision domain and one broadcast domain
-A physical star topology consists of several workstations that branch off a central device
What advantage does a switch have over a hub? - CORRECT ANSWER - A switch
recognizes frame boundaries and pays attention to the destination MAC address of the incoming
frame as well as the port on which it was received.
Which device is used to segment a network? - CORRECT ANSWER - A switch.
Hubs don't segment a network; they just connect network segments together. Repeaters don't
segment the network; they repeat a signal and allow the distance covered to be increased.
Which of the following devices can work at both Layers 2 and 3 of the OSI model? - CORRECT
ANSWER - A switch is typically just a Layer 2 device segmenting the network by using
MAC addresses. However, some higher‐end switches can provide Layer 3 services
What is an advantage of using DHCP in a network environment? - CORRECT ANSWER -
Remember that DHCP servers assign IP addresses to hosts. Thus DHCP allows easier
administration than providing IP information to each host by hand (called static IP addressing).
, Which device should be used if you need to send incoming packets to one or more machines that
are hidden behind a single IP address? - CORRECT ANSWER - A load balancer uses a
little trickery and sends incoming packets to one or more machines that are hidden behind a
single IP address. Modern load-balancing routers can use different rules to make decisions about
where to route traffic, which can be based on least load, fastest response times, or simply
balancing requests.
What role does the "A" record in a Domain Name Service (DNS) server have in your network? -
CORRECT ANSWER - DNS translates human names to IP addresses for routing your
packet through the Internet.
What is the most common use for a web proxy? - CORRECT ANSWER - Web cache, of
course! Most proxy programs provide a means to deny access to certain URLs in a blacklist, thus
providing content filtering, usually in corporate environments.
Which is not an advantage of network segmentation? - CORRECT ANSWER - The first 3
options all aid in boosting network performance, so the only option left is broadcast storms.
Increased traffic will increase LAN congestion
Which device creates separate collision domains and a single broadcast domain? - CORRECT
ANSWER - Switches create separate collision domains, but a single broadcast domain.
Remember that routers provide a separate broadcast domain for each interface.
Which device by default does not forward any broadcast or multicast packets? - CORRECT
ANSWER - Routers don't forward any broadcast or multicast packets by default, but they
do have plenty of other functions like using the logical address, using access lists, and providing
Layer 2 bridging functions.
Which type of server in your network uses pointer and A records? - CORRECT
ANSWER - A DNS server uses many types of records. An "A" record is a hostname to IP
address record and a pointer record is an IP address to hostname record.
Users on your network are saturating your bandwidth because they are using too many nonwork
related sites. What device would limit the availability of the types of sites that users on a LAN
