Topic 1, Volume A
If a 4-port LAG is configured with the option of 'port-threshold 2' and 'action down' what will
happen if the total operational links in the LAG is 2?
A.
If dynamic-cost is enabled it will adjust the cost for routing protocols such as OSPF.
B.
If dynamic-cost is not enabled it will adjust the cost for routing protocols such as OSPF by dividing
the link bandwidth by 2.
C.
The LAG will be changed to an operational state of 'down'.
D.
The LAG will function with only 2 ports. There will be no change to therouting metric
The LAG will be changed to an operational state of 'down'.
Click the Exhibit Button below:
An Ethernet Local Area Network (LAN) consists of the components shown in the diagram below:
How many broadcast and collision domains are on this LAN?
A.
9 broadcast domains, 3 collision domains.
B.
3 broadcast domains, 3 collision domains.
C.
3 broadcast domains, 9 collision domains.
D.
1 broadcast domain, 9 collision domains.
3 broadcast domains, 9 collision domains.
As described by the CSMA/CD algorithm, what is the first thing to happen when Host A and Host
B begin transmitting data at the same time?
A.
Host A and B will generate a jam signal.
B.
Listening hosts will request retransmission.
C.
Host A or B will retry the transmission
D.
back-off timer is started by Host A or B.
Host A and B will generate a jam signal.
(Click the Exhibit Button below) An Ethernet Local Area Network (LAN) consists of the following
components:
Four 24-port hubs & Two 16-port switches
How many broadcast domains are on this LAN?
A.
1
B.
2
C.
5
D.
32
1
Which of the following best describes an Ethernet bridge?
A.
A passive device simply used to connect two or more cables. Does not generate or amplify any
signals.
B.
A device that receives and retransmits a signal out its other ports, but does not do any Layer 2
analysis of the data.
C.
A device that receives a signal and based on the Layer 2 destination address, makes a decision
on which ports the signal should be retransmitted.
D.
A device that receives a signal and based on the Layer 3 destination address, makes a decision
on which ports the signal should be retransmitted.
A device that receives a signal and based on the Layer 2 destination address, makes a decision
on which ports the signal should be retransmitted.
What happens immediately after an Ethernet switch receives an Ethernet frame?
A.
It records the destination MAC address and theinterface on which it arrived.
B.
It records the source MAC address and the interface on which it arrived.
C.
It floods the frame out of all its interfaces except the interface on which the frame arrived.
It records the source MAC address and the interface on which it arrived.
What is the behavior of a typical Ethernet switch when it receives a frame with a uncast
destination MAC address? (Choose two)
A.
The switch floods the frame out of all ports except the port on which it was received.
B.
The switch looks in its FDB. If the source address is unknown it discards the frame.
C.
The switch looks in its FDB. If the destination address is known it forwards the frame out the
appropriate interface.
D.
The switch looks in its FDB. If the destination address is unknown it floods the frame out all ports
except the port on which it was received.
E.
The switch looks in its FDB. If the destination address is unknown it discards the frame.
The switch looks in its FDB. If the destination address is known it forwards the frame out the
appropriate interface.
The switch looks in its FDB. If the destination address is unknown it floods the frame out all ports
except the port on which it was received.
Which technologies can be used with Ethernet switches to achieve redundancy? (Choose two)
A.
LAG
B.
OSPF
C.
RIP
D.
STP
LAG
STP
In what type of network is a broadcast storm likely to occur?
A.
An Ethernet network with redundant paths not running STP.
B.
An ATMnetwork.
C.
A SONET network.
D.
All of the above.
An Ethernet network with redundant paths not running STP.
What problems was Spanning Tree Protocol (STP) primarily designed to solve? (Choose two):
A.
Providing path redundancy.
B.
Preventing loops.
C.
Handling collisions
D.
Allowing flooding of multicast traffic
Providing path redundancy.
Preventing loops.
Which of the following is a feature of a VLAN?
A.
A VLAN allows multiple Ethernet switches to be connected in a single broadcast domain.
B.
A VLAN allows multiple Ethernet switches to beconnected in a single collision domain.
C.
A VLAN can separate ports on the same switch into different broadcast domains.
D.
A VLAN can separate ports on the same switch into different collision domains.
A VLAN can separate ports on the same switch into different broadcast domains.
What is required if devices on different VLANs wish to communicate with each other?
A.
Devices on different VLANs cannot communicate with each other.
B.
Devices on different VLANs can communicate with each other as long as they are connected to
the same switch.
C.
Devices ondifferent VLANs can communicate with each other as long as the switches they are
attached to are connected to each other with an Ethernet connection
D.
Devices on different VLANs can communicate with each other if there is an IP router to connect
the VLANs.
Devices on different VLANs can communicate with each other if there is an IP router to connect
the VLANs.
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