SB&W: Exam CH 3 & 4

Pregunta 1 de 39

1

When a range of ports is being configured for EtherChannel by the use of PAgP, which mode will form the bundled channel only if the port receives PAgP packets from another device?

Selecciona una de las siguientes respuestas posibles:

desirable
auto
passive
active

Explicación

Pregunta 2 de 39

1

Refer to the exhibit. A network administrator issued the show etherchannel summary command on the switch S1. What conclusion can be drawn?

Selecciona una de las siguientes respuestas posibles:

The EtherChannel is suspended.
The EtherChannel is not functional.
FastEthernet ports Fa0/1, Fa0/2, and Fa0/3 do not join the EtherChannel.
The port aggregation protocol PAgP is misconfigured.

Explicación

Pregunta 3 de 39

1

Which command will initiate EtherChannel interface configuration mode?

Selecciona una de las siguientes respuestas posibles:

channel-group group-identifier
interface interface-identifier
interface range interface-identifier
interface port-channel interface-identifier

Explicación

Pregunta 4 de 39

1

Which statement describes a characteristic of EtherChannel?

Selecciona una de las siguientes respuestas posibles:

It can combine up to a maximum of 4 physical links.
It consists of multiple parallel links between a switch and a router.
It is made by combining multiple physical links that are seen as one link between two switches.
It can bundle mixed types of 100 Mb/s and 1Gb/s Ethernet links.

Explicación

Pregunta 5 de 39

1

The trunk link between two 2960 switches has reached its capacity. How can this be addressed in the most economical way?

Selecciona una de las siguientes respuestas posibles:

Decrease the size of the inter-switch collision domain by configuring additional VLANs.
Combine physical ports into a high-speed logical link by configuring EtherChannel.
Increase the speed of the ports.
Create additional broadcast domains by inserting a router between the switches.

Explicación

Pregunta 6 de 39

1

Which three settings must match in order for switch ports to form an EtherChannel? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

The switch port numbers that will be combined to form the EtherChannel must match.
Port security settings on the connected physical interfaces must be configured to the same violation mode.
The interfaces must be configured to the same speed.
Non-trunk ports must belong to the same VLAN.
The duplex settings of the switch ports on both sides of the physical link must match.
The SNMP community strings must be configured the same.

Explicación

Pregunta 7 de 39

1

Which two protocols are link aggregation protocols? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

802.3ad
RSTP
STP
PAgP
EtherChannel

Explicación

Pregunta 8 de 39

1

What is a best practice to use before beginning an EtherChannel implementation?

Selecciona una de las siguientes respuestas posibles:

Assign affected interfaces to VLAN 1.
Enable each of the affected interfaces.
Assign affected interfaces to the management VLAN
Assign affected interfaces to an unused VLAN.
Shut down each of the affected interfaces

Explicación

Pregunta 9 de 39

1

Refer to the exhibit. A network administrator has decided that an EtherChannel between ports 0/1 and 0/2 on switches S1 and S2 would help performance. After making the configuration, the administrator notices no performance gain. Based on the output that is shown, what two assumptions can the network administrator make? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Switch S2 did not use a compatible EtherChannel mode
The EtherChannel bundle is not working.
LACP and PAgP were both used to form the EtherChannel
One of the ports on S2 was not configured correctly
Switch S2 must be configured so that the maximum number of port channels is increased.
The EtherChannel bundle is working.

Explicación

Pregunta 10 de 39

1

Refer to the exhibit. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch?

Selecciona una de las siguientes respuestas posibles:

EtherChannel
trunking
HSRP
PortFast

Explicación

Pregunta 11 de 39

1

Refer to the exhibit. The administrator tried to create an EtherChannel between S1 and the other two switches via the commands that are shown, but was unsuccessful. What is the problem?

Selecciona una de las siguientes respuestas posibles:

Traffic can only be sent to two different switches if EtherChannel is implemented on Gigabit Ethernet interfaces.
Traffic cannot be sent to two different switches through the same EtherChannel link.
Traffic can only be sent to two different switches if EtherChannel is implemented on Layer 3 switches.
Traffic cannot be sent to two different switches, but only to two different devices like an EtherChannel-enabled server and a switch.

Explicación

Pregunta 12 de 39

1

A network administrator is configuring an EtherChannel link between switches SW1 and SW2 by using the command SW1(config-if-range)# channel-group 1 mode passive. Which command must be used on SW2 to enable this EtherChannel?

Selecciona una de las siguientes respuestas posibles:

SW2(config-if-range)# channel-group 1 mode active
SW2(config-if-range)# channel-group 1 mode passive
SW2(config-if-range)# channel-group 1 mode desirable
SW2(config-if-range)# channel-group 1 mode auto

Explicación

Pregunta 13 de 39

1

An EtherChannel link using LACP was formed between two switches, S1 and S2. While verifying the configuration, which mode combination could be utilized on both switches?

Selecciona una de las siguientes respuestas posibles:

S1-passive and S2-passive
S1-passive and S2-active
S1-on and S2-active
S1-on and S2-passive

Explicación

Pregunta 14 de 39

1

Which two load balancing methods can be implemented with EtherChannel technology? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

destination IP to destination MAC
destination IP to source IP
source IP to destination IP
source MAC to destination MAC
destination MAC to source MAC
destination MAC to destination IP

Explicación

Pregunta 15 de 39

1

Which statement describes an EtherChannel implementation?

Selecciona una de las siguientes respuestas posibles:

A trunked port can be part of an EtherChannel bundle.
PAgP cannot be used in conjunction with EtherChannel.
EtherChannel operates only at Layer 2.
EtherChannel can support up to a maximum of ten separate links

Explicación

Pregunta 16 de 39

1

Which PAgP mode combination will establish an EtherChannel?

Selecciona una de las siguientes respuestas posibles:

switch 1 set to on; switch 2 set to desirable.
switch 1 set to desirable; switch 2 set to desirable.
switch 1 set to auto; switch 2 set to auto
switch 1 set to auto; switch 2 set to on.

Explicación

Pregunta 17 de 39

1

Which statement is true regarding the use of PAgP to create EtherChannels?

Selecciona una de las siguientes respuestas posibles:

It mandates that an even number of ports (2, 4, 6, etc.) be used for aggregation.
It requires more physical links than LACP does
It is Cisco proprietary
It requires full duplex.
It increases the number of ports that are participating in spanning tree.

Explicación

Pregunta 18 de 39

1

When a range of ports is being configured for EtherChannel, which mode will configure LACP so that it initiates the EtherChannel negotiation?

Selecciona una de las siguientes respuestas posibles:

active
desirable
auto
passive

Explicación

Pregunta 19 de 39

1

What are two advantages of using LACP? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

increases redundancy to Layer 3 devices
eliminates the need for the spanning-tree protocol
allows use of multivendor devices
provides a simulated environment for testing link aggregation
allows automatic formation of EtherChannel links
decreases the amount of configuration that is needed on a switch for EtherChannel

Explicación

Pregunta 20 de 39

1

Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

802.11b
802.11n
802.11g
802.11a
802.11ac

Explicación

Pregunta 21 de 39

1

Rellena el espacio en blanco para completar el texto.

Which encryption protocol is used by the WPA2 shared key authentication technique?

Explicación

Pregunta 22 de 39

1

Rellena el espacio en blanco para completar el texto.

A network administrator discovers a rogue AP in the network. The rogue AP is capturing traffic and then forwarding it on to the legitimate AP. This type of attack is known as a attack.

Explicación

Pregunta 23 de 39

1

Rellena el espacio en blanco para completar el texto.

Ad hoc wireless topologies sometimes can use a feature called to enable a smartphone to create a personal hotspot.

Explicación

Pregunta 24 de 39

1

Which type of wireless topology is created when two or more Basic Service Sets are interconnected by Ethernet?

Selecciona una de las siguientes respuestas posibles:

WiFi Direct
ad hoc WLAN
ESS
IBISS
BSS

Explicación

Pregunta 25 de 39

1

A supervisor needs wireless access in the construction office during the construction of a new building. The construction office is in the new building and directly across the road from headquarters. What could be used to satisfy this requirement of needing a narrow area of coverage?

Selecciona una de las siguientes respuestas posibles:

multiple MIMO antennas
Yagi
rubber duck
omnidirectional

Explicación

Pregunta 26 de 39

1

Which IEEE wireless standard is known as WiGig and operates using a tri-band solution in the 2.4, 5, and 60 GHz ranges?

Selecciona una de las siguientes respuestas posibles:

802.11ac
802.11g
802.11n
802.11ad

Explicación

Pregunta 27 de 39

1

A company has recently implemented an 802.11n wireless network. Some users are complaining that the wireless network is too slow. Which solution is the best method to enhance the performance of the wireless network?

Selecciona una de las siguientes respuestas posibles:

Split the traffic between the 2.4 GHz and 5 GHz frequency bands.
Replace the wireless NICs on the computers that are experiencing slow connections.
Disable DHCP on the access point and assign static addresses to the wireless clients.
Upgrade the firmware on the wireless access point

Explicación

Pregunta 28 de 39

1

Which parameter is commonly used to identify a wireless network name when a home wireless AP is being configured?

Selecciona una de las siguientes respuestas posibles:

SSID
ESS
BESS
ad hoc

Explicación

Pregunta 29 de 39

1

What is an advantage of SSID cloaking?

Selecciona una de las siguientes respuestas posibles:

It provides free Internet access in public locations where knowing the SSID is of no concern.
It is the best way to secure a wireless network.
Clients will have to manually identify the SSID to connect to the network
SSIDs are very difficult to discover because APs do not broadcast them

Explicación

Pregunta 30 de 39

1

Which two roles are typically performed by a wireless router that is used in a home or small business? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

repeater
WLAN controller
Ethernet switch
access point
RADIUS authentication server

Explicación

Pregunta 31 de 39

1

Which security mode is the least secure choice when a home wireless router is configured?

Selecciona una de las siguientes respuestas posibles:

WPA2-Personal
WPA
WPA2
WEP

Explicación

Pregunta 32 de 39

1

A student uses a laptop to upload an assignment to a file server. Which wireless frame type did the laptop send to locate and associate with the campus access point?

Selecciona una de las siguientes respuestas posibles:

control frame
data frame
management frame
beacon frame

Explicación

Pregunta 33 de 39

1

For which discovery mode will an AP generate the most traffic on a WLAN?

Selecciona una de las siguientes respuestas posibles:

mixed mode
passive mode
open mode
active mode

Explicación

Pregunta 34 de 39

1

Which statement defines the control frame operation between two stations?

Selecciona una de las siguientes respuestas posibles:

A station responds to an RTS frame with an ACK frame, thus providing permission for the requesting station to send a data frame.
If the sending station does not receive an ACK frame within a predetermined period of time, the sending station will drop the connection
A station sends an RTS frame as the first step in a three-way handshake that is required before sending data frames.
After receiving a data frame, the receiving station will send an ACK frame to the sending station if no errors are found.

Explicación

Pregunta 35 de 39

1

During which stage of establishing connectivity between a WLAN client and an AP does the client learn the MAC address of the AP?

Selecciona una de las siguientes respuestas posibles:

probing
discovery
authentication
encryption
association

Explicación

Pregunta 36 de 39

1

What is the purpose of the Distributed Coordination Function in an IEEE 802.11 WLAN environment?

Selecciona una de las siguientes respuestas posibles:

It is used to send data over a half-duplex connection
It is used in a full-duplex environment to detect collisions.
It allows a client to detect whether or not a channel is clear prior to transmission.
It allows the client to change transmission channels.

Explicación

Pregunta 37 de 39

1

If three 802.11b access points need to be deployed in close proximity, which three frequency channels should be used? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

1
3
5
6
8
11

Explicación

Pregunta 38 de 39

1

Which feature of 802.11n wireless access points allows them to transmit data at faster speeds than previous versions of 802.11 Wi-Fi standards did?

Selecciona una de las siguientes respuestas posibles:

WPS
MITM
SPS
MIMO

Explicación

Pregunta 39 de 39

1

An employee connects wirelessly to the company network using a cell phone. The employee then configures the cell phone to act as a wireless access point that will allow new employees to connect to the company network. Which type of security threat best describes this situation?

Selecciona una de las siguientes respuestas posibles:

spoofing
denial of service
rogue access point
cracking

	Creado por Anthony Schulmeister hace más de 8 años

SB&W Exam CH 3&4

SB&W: Exam CH 3 & 4

Pregunta 1 de 39

When a range of ports is being configured for EtherChannel by the use of PAgP, which mode will form the bundled channel only if the port receives PAgP packets from another device?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 39

Refer to the exhibit. A network administrator issued the show etherchannel summary command on the switch S1. What conclusion can be drawn?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 39

Which command will initiate EtherChannel interface configuration mode?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 39

Which statement describes a characteristic of EtherChannel?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 39

The trunk link between two 2960 switches has reached its capacity. How can this be addressed in the most economical way?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 39

Which three settings must match in order for switch ports to form an EtherChannel? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 39

Which two protocols are link aggregation protocols? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 39

What is a best practice to use before beginning an EtherChannel implementation?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 39

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 39

Refer to the exhibit. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 39

Refer to the exhibit. The administrator tried to create an EtherChannel between S1 and the other two switches via the commands that are shown, but was unsuccessful. What is the problem?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 39

A network administrator is configuring an EtherChannel link between switches SW1 and SW2 by using the command SW1(config-if-range)# channel-group 1 mode passive. Which command must be used on SW2 to enable this EtherChannel?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 39

An EtherChannel link using LACP was formed between two switches, S1 and S2. While verifying the configuration, which mode combination could be utilized on both switches?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 39

Which two load balancing methods can be implemented with EtherChannel technology? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 39

Which statement describes an EtherChannel implementation?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 39

Which PAgP mode combination will establish an EtherChannel?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 39

Which statement is true regarding the use of PAgP to create EtherChannels?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 39

When a range of ports is being configured for EtherChannel, which mode will configure LACP so that it initiates the EtherChannel negotiation?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 39

What are two advantages of using LACP? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 39

Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles: