SB&W: Exam CH 3 & 4

Questão 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?

Selecione uma das seguintes:

desirable
auto
passive
active

Explicação

Questão 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?

Selecione uma das seguintes:

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.

Explicação

Questão 3 de 39

1

Which command will initiate EtherChannel interface configuration mode?

Selecione uma das seguintes:

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

Explicação

Questão 4 de 39

1

Which statement describes a characteristic of EtherChannel?

Selecione uma das seguintes:

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.

Explicação

Questão 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?

Selecione uma das seguintes:

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.

Explicação

Questão 6 de 39

1

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

Selecione uma ou mais das seguintes:

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.

Explicação

Questão 7 de 39

1

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

Selecione uma ou mais das seguintes:

802.3ad
RSTP
STP
PAgP
EtherChannel

Explicação

Questão 8 de 39

1

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

Selecione uma das seguintes:

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

Explicação

Questão 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.)

Selecione uma ou mais das seguintes:

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.

Explicação

Questão 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?

Selecione uma das seguintes:

EtherChannel
trunking
HSRP
PortFast

Explicação

Questão 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?

Selecione uma das seguintes:

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.

Explicação

Questão 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?

Selecione uma das seguintes:

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

Explicação

Questão 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?

Selecione uma das seguintes:

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

Explicação

Questão 14 de 39

1

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

Selecione uma ou mais das seguintes:

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

Explicação

Questão 15 de 39

1

Which statement describes an EtherChannel implementation?

Selecione uma das seguintes:

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

Explicação

Questão 16 de 39

1

Which PAgP mode combination will establish an EtherChannel?

Selecione uma das seguintes:

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.

Explicação

Questão 17 de 39

1

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

Selecione uma das seguintes:

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.

Explicação

Questão 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?

Selecione uma das seguintes:

active
desirable
auto
passive

Explicação

Questão 19 de 39

1

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

Selecione uma ou mais das seguintes:

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

Explicação

Questão 20 de 39

1

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

Selecione uma ou mais das seguintes:

802.11b
802.11n
802.11g
802.11a
802.11ac

Explicação

Questão 21 de 39

1

Preencha o espaço em branco para completar o texto.

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

Explicação

Questão 22 de 39

1

Preencha o espaço em branco para completar o 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.

Explicação

Questão 23 de 39

1

Preencha o espaço em branco para completar o texto.

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

Explicação

Questão 24 de 39

1

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

Selecione uma das seguintes:

WiFi Direct
ad hoc WLAN
ESS
IBISS
BSS

Explicação

Questão 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?

Selecione uma das seguintes:

multiple MIMO antennas
Yagi
rubber duck
omnidirectional

Explicação

Questão 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?

Selecione uma das seguintes:

802.11ac
802.11g
802.11n
802.11ad

Explicação

Questão 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?

Selecione uma das seguintes:

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

Explicação

Questão 28 de 39

1

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

Selecione uma das seguintes:

SSID
ESS
BESS
ad hoc

Explicação

Questão 29 de 39

1

What is an advantage of SSID cloaking?

Selecione uma das seguintes:

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

Explicação

Questão 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.)

Selecione uma ou mais das seguintes:

repeater
WLAN controller
Ethernet switch
access point
RADIUS authentication server

Explicação

Questão 31 de 39

1

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

Selecione uma das seguintes:

WPA2-Personal
WPA
WPA2
WEP

Explicação

Questão 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?

Selecione uma das seguintes:

control frame
data frame
management frame
beacon frame

Explicação

Questão 33 de 39

1

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

Selecione uma das seguintes:

mixed mode
passive mode
open mode
active mode

Explicação

Questão 34 de 39

1

Which statement defines the control frame operation between two stations?

Selecione uma das seguintes:

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.

Explicação

Questão 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?

Selecione uma das seguintes:

probing
discovery
authentication
encryption
association

Explicação

Questão 36 de 39

1

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

Selecione uma das seguintes:

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.

Explicação

Questão 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.)

Selecione uma ou mais das seguintes:

1
3
5
6
8
11

Explicação

Questão 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?

Selecione uma das seguintes:

WPS
MITM
SPS
MIMO

Explicação

Questão 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?

Selecione uma das seguintes:

spoofing
denial of service
rogue access point
cracking

	Criado por Anthony Schulmeister mais de 10 anos atrás

SB&W Exam CH 3&4

SB&W: Exam CH 3 & 4

Questão 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?

Selecione uma das seguintes:

Explicação

Questão 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?

Selecione uma das seguintes:

Explicação

Questão 3 de 39

Which command will initiate EtherChannel interface configuration mode?

Selecione uma das seguintes:

Explicação

Questão 4 de 39

Which statement describes a characteristic of EtherChannel?

Selecione uma das seguintes:

Explicação

Questão 5 de 39

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

Selecione uma das seguintes:

Explicação

Questão 6 de 39

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

Selecione uma ou mais das seguintes:

Explicação

Questão 7 de 39

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

Selecione uma ou mais das seguintes:

Explicação

Questão 8 de 39

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

Selecione uma das seguintes:

Explicação

Questão 9 de 39

Selecione uma ou mais das seguintes:

Explicação

Questão 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?

Selecione uma das seguintes:

Explicação

Questão 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?

Selecione uma das seguintes:

Explicação

Questão 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?

Selecione uma das seguintes:

Explicação

Questão 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?

Selecione uma das seguintes:

Explicação

Questão 14 de 39

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

Selecione uma ou mais das seguintes:

Explicação

Questão 15 de 39

Which statement describes an EtherChannel implementation?

Selecione uma das seguintes:

Explicação

Questão 16 de 39

Which PAgP mode combination will establish an EtherChannel?

Selecione uma das seguintes:

Explicação

Questão 17 de 39

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

Selecione uma das seguintes:

Explicação

Questão 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?

Selecione uma das seguintes:

Explicação

Questão 19 de 39

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

Selecione uma ou mais das seguintes:

Explicação

Questão 20 de 39

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

Selecione uma ou mais das seguintes: