Networking Unit 6 Notecards

Select the statement that best describes a broadcast storm.

A broadcast storm occurs when there are so many broadcast messages on the network that they approach or exceed the network bandwidth.

A switch running STP is classified as a backup bridge. What state is it in?

Blocking

You manage a network with a single switch. On each switch port, a hub connects multiple devices to the switch. Which condition are you most likely to experience on the network?

Collisions

What does the ip address dhcp command allow you to do?

Configure the switch to obtain an IP address from a DHCP server.

Controls the ability to connect to the device using a direct connection.

Console

Which of the following statements describe how VLANs affect broadcast traffic within an internetwork? (Select two.)

Devices on the same VLAN have the same subnet address & Broadcast traffic is transmitted only within a VLAN.

Which of the following best describes the concept of a VLAN?

Devices on the same network logically grouped as if they were on separate networks.

A user reports that network access from her workstation is very slow. The problem does not seem to be affecting any other users. Which of the following conditions is the most likely cause?

Duplex mismatch

You manage a network with multiple switches. You find that your switches are experiencing heavy broadcast storms. Which of the following will help reduce the effects of a broadcast storm?

Enable spanning tree on the switches

You manage a network with multiple switches. You find that your switches are experiencing heavy broadcast storms. Which of the following will help reduce the effects of a broadcast storm?

Enable spanning tree on the switches

Affected by network outages.

In-band management

Competes with normal network traffic for bandwidth.

In-band management

Must be encrypted to protect communications from sniffing.

In-band management

You manage a local area network with several switches. A new employee has started today, so you connect her workstation to a switch port. After connecting the workstation, you find that the workstation cannot get an IP address from the DHCP server. You check the link and status lights and see that the connection is working properly. A ping to the loopback address on the workstation succeeds. No other computers seem to have the problem. Which of the following is the most likely cause of the problem?

Incorrect VLAN assignment

Which of the following are reasons to configure VLANs on a switch as opposed to using switches without VLANs? (Select two.)

Increased number of broadcast domains & Increased security

A switch running STP is in the listening state. A message destined for a different network segment arrives at the switch.

It does not record address or segment information. It does not forward the message.

A switch is running STP is in the learning state. A message destined for a different network segment arrives at the switch.

It uses the source MAC address and network segment information to build its bridge database, but does not forward the message.

Active mode places the port in a negotiating state.

Link Aggregation Control Protocol (LACP)

Based on the 802.3ad standard.

Link Aggregation Control Protocol (LACP)

Passive mode places the port into a passive negotiating state.

Link Aggregation Control Protocol (LACP)

Switches running STP are in the process of exchanging BPDUs and redefining their roles. Which port state are the switches currently in?

Listening

Can be configured over a dedicated communication channel.

Managed switch

Can be configured over a network connection.

Managed switch

Provides port security features.

Managed switch

Supports VLANs.

Managed switch

You are configuring a switch so that you can manage it using PuTTY from the same network segment as the switch. On the switch, you enter the following commands: switch#config terminal switch(config)#interface vlan 1 switch(config-if)#ip address 192.168.1.10 255.255.255.0 Will this configuration work?

No, the no shutdowncommand needs to be entered.

Does not compete with normal network traffic for bandwidth.

Out-of-band management

Uses a dedicated communication channel.

Out-of-band management

Auto mode places the port into a passive negotiating state.

Port Aggregation Protocol (PAgP)

Desirable mode places the port in a negotiating state.

Port Aggregation Protocol (PAgP)

Which statements accurately describe the port states of both bridges and switches? (Select two.)

Ports in a blocked state still receive BPDUs & In the learning state, the MAC address table can be populated, but frames are not forwarded.

You need to configure spanning tree on a Cisco switch. You'd like to use a protocol that conforms to the 802.1w standards. Which protocol should you use?

Rapid PVST+

You manage a network with two switches. The switches are connected together through their Gigabit Ethernet uplink ports. You define VLAN 1 and VLAN 2 on each switch. A device on the first switch in VLAN 1 needs to communicate with a device on the same switch which is in VLAN 2. What should you configure so that the two devices can communicate?

Routing

Controls the ability to connect to the device using a web browser using HTTPS.

SDM

A switch receives a frame addressed to the MAC address FF:FF:FF:FF:FF:FF. What will the switch do with the frame?

Send it out all ports except for the port it was received on.

Which of the following features dynamically places switch ports in blocking or forwarding states?

Spanning tree

Which of the following solutions would you implement to eliminate switching loops?

Spanning tree

You manage a network that uses multiple switches. You want to provide multiple paths between switches so that if one link goes down, an alternate path is available. Which feature should your switch support?

Spanning tree

You manage a single subnet with three switches. The switches are connected to provide redundant paths between the switches. Which feature prevents switching loops and ensures there is only a single active path between any two switches?

Spanning tree

Which of the following connectivity hardware is used to create a VLAN?

Switch

You can create a virtual LAN using which of the following?

Switch

You want to reduce collisions by creating separate collision domains and virtual LANs. Which of the following devices should you choose?

Switch

When you configure VLANs on a switch, which of the following is used to identify a device's VLAN membership?

Switch port

Which of the following statements accurately describes a VLAN ID?

Switches append a VLAN ID to the header of each frame to identify the virtual network it belongs to

Which problem does the spanning tree protocol prevent?

Switching loops from developing when redundant paths are implemented between switches.

Which of the following are true regarding using multiple VLANs on a single switch? (Select two.)

The number of broadcast domains increases & The number of collision domains remains the same.

While viewing the status of the interfaces on a Cisco switch, you see an abnormally large number of oversized Ethernet frames being received on one interface. This interface is connected to a workstation located on the second floor. What could cause this to happen?

The workstation's network board is jabbering.

When configuring VLANs on a switch, what type of switch ports are members of all VLANs defined on the switch?

Trunk ports.

You manage a network with two switches. The switches are connected together through their Gigabit Ethernet uplink ports. You define VLAN 1 and VLAN 2 on each switch. A device on the first switch in VLAN 1 needs to communicate with a device on the second switch in VLAN 1. What should you configure to allow communication between these two devices through the switches?

Trunking

You manage a single subnet with three switches. The switches are connected to provide redundant paths between the switches. Which feature allows the switches to pass VLAN traffic between the switches?

Trunking

Commonly sold at retail stores.

Unmanaged switch

Provides very few configuration options.

Unmanaged switch

You run a small network for your business that has a single router connected to the internet and a single switch. You keep sensitive documents on a computer that you would like to keep isolated from other computers on the network. Other hosts on the network should not be able to communicate with this computer through the switch, but you still need to access the network through the computer. What should you use for this situation?

VLAN

You run a small network for your business that has a single router connected to the internet and a single switch. You keep sensitive documents on a computer that you would like to keep isolated from other computers on the network. Other hosts on the network should not be able to communicate with this computer through the switch, but you still need to access the network through the computer. Which of the following should you use in this situation?

VLAN

Your company is a small start-up that has leased office space in a building shared by other businesses. All businesses share a common network infrastructure. A single switch connects all devices in the building to the router that provides internet access. You would like to make sure that your computers are isolated from computers used by other companies. Which feature should you request to have implemented?

VLAN

You manage a network that uses a single switch. All ports within your building connect through the single switch. In the lobby of your building are three RJ45 ports connected to the switch. You want to allow visitors to plug into these ports to gain internet access, but they should not have access to any other devices on your private network. Employees connected throughout the rest of your building should have both private and internet access. Which feature should you implement?

VLANs

You need to keep users in all other departments from accessing the servers used by the finance department. Which of the following technologies should you use to logically isolate the network?

VLANs

Controls the ability to log on through a LAN or WAN interface configured on the device.

VTY

Which of the following benefits apply only to creating VLANs with switches and not to segmenting the network with regular switches?

You can create multiple broadcast domains.

Enter global configuration mode

conf t

Set the duplex setting for the interface.

duplex auto

Enter interface configuration mode

int fa0/ appropriate range

Which command would you use on a switch to enable management from a remote network?

ip default-gateway 192.168.10.185

The network board in a workstation is currently configured as follows: Network speed = Auto Duplexing = Auto The workstation is experiencing poor network performance, and you suspect that the network board is not correctly detecting the network speed and duplex settings. Upon investigation, you find that it is running at 10 Mbps half-duplex. You know that your network switch is capable of much faster throughput. To fix this issue, you decide to manually configure these settings on the workstation. Before you do so, you need to verify the configuration of the switch port that the workstation is connected to. Given that it is a Cisco switch, which commands can be used on the switch to show a list of all switch ports and their current settings? (Select two.)

show running-config interface & show interface

Set the speed of the interface.

speed auto