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1.0 Network Fundamentals141 questions
2.0 Network Access146 questions
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Results

Date: 19th Aug 2026Time Taken: 00:00:31

2.0 Network Access

Answers Result

You are the network administrator for a small office network with several VLANs configured on a single Layer 3 switch. Inter-VLAN routing is performed on the switch using SVIs. Users in VLAN 20 and VLAN 30 can access the internet. Users in VLAN 10 cannot access the internet. Troubleshooting shows the following: VLAN 10 hosts can ping the IP address of interface VLAN 10 (the VLAN 10 SVI). VLAN 10 hosts cannot ping hosts in other VLANs or public IP addresses on the internet. What could be the cause of this issue?

Incorrect

A.The switch port connecting to the internet is down.
B.VLAN 10 is not assigned an IP address on its SVI (interface VLAN 10).
C.The default gateway for VLAN 10 is not set correctly on the hosts.
D.Spanning Tree Protocol is blocking VLAN 10.

When configuring an EtherChannel using LACP, which pairing of LACP modes will successfully form the channel between two devices?

Correct

A.Passive on one end and Passive on the other
B.Active on one end and Passive on the other
C.On (static EtherChannel) on one end and On (static EtherChannel) on the other
D.On (static EtherChannel) on one end and Passive on the other

In a software-defined networking (SDN) architecture, which interface does the controller primarily use to push configuration and forwarding instructions to routers and switches?

Incorrect

A.Peer-to-peer interface
B.Southbound interface
C.Client-side interface
D.Northbound interface

Answers Result

Incorrect

A.The switch port connecting to the internet is down.
B.VLAN 10 is not assigned an IP address on its SVI (interface VLAN 10).
C.The default gateway for VLAN 10 is not set correctly on the hosts.
D.Spanning Tree Protocol is blocking VLAN 10.

To reach any destination outside the local subnet (other VLAN subnets or the internet), a host must send traffic to a default gateway. In this design, that gateway should be the IP address of the VLAN 10 SVI. The fact that VLAN 10 hosts can ping the VLAN 10 SVI shows local Layer 2 connectivity within VLAN 10 is working and that the SVI exists and is reachable on the VLAN. If those same hosts cannot reach other VLAN subnets or the internet, a common cause is that their default gateway is missing or incorrect, so off-subnet traffic is never forwarded to the Layer 3 switch for routing. The choice mentioning the switch port connecting to the internet is down conflicts with the scenario because other VLANs can still reach the internet. The choice stating VLAN 10 is not assigned an IP address on its SVI conflicts with the troubleshooting result because VLAN 10 hosts are able to ping the VLAN 10 SVI. The choice mentioning Spanning Tree Protocol is blocking VLAN 10 is unlikely because STP affects Layer 2 forwarding paths; if STP were blocking VLAN 10 connectivity, VLAN 10 hosts would typically have broader connectivity problems within the VLAN rather than being able to reliably reach the VLAN 10 SVI.

When configuring an EtherChannel using LACP, which pairing of LACP modes will successfully form the channel between two devices?

Correct

A.Passive on one end and Passive on the other
B.Active on one end and Passive on the other
C.On (static EtherChannel) on one end and On (static EtherChannel) on the other
D.On (static EtherChannel) on one end and Passive on the other

LACP requires negotiation, so at least one side must actively initiate LACP by using Active mode. The pairing mentioning "Active" with "Passive" works because the Active side sends LACP messages and the Passive side responds. The choice with "Passive" on both ends fails because neither side initiates LACP negotiation. The choices mentioning "On (static EtherChannel)" are not using LACP negotiation, so they are not valid LACP mode pairings; mixing "On" with "Passive" will not form an LACP EtherChannel.

In a software-defined networking (SDN) architecture, which interface does the controller primarily use to push configuration and forwarding instructions to routers and switches?

Incorrect

A.Peer-to-peer interface
B.Southbound interface
C.Client-side interface
D.Northbound interface

A southbound interface is used for controller-to-device communication in SDN, allowing the controller to program and manage network devices such as switches and routers (for example, by installing forwarding rules or applying configuration). The choice mentioning a northbound interface describes controller-to-application communication (apps request network services or information from the controller), not direct device control. A peer-to-peer interface implies equal entities exchanging information rather than a controller programming devices, and a client-side interface is not the standard SDN term for controller-to-device control.

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Understand why,not only what.

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How is this different from a prep book?

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Understand why,
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Before you start,
you probably want to know…