Question

Refer to the exhibit. The Fa0/2 interface on switch S1 has been configured with the switchport port-security mac-address 0023.189d.6456 command and a workstation has been connected. What could be the reason that the Fa0/2 interface is shutdown?

The connection between S1 and PC1 is via a crossover cable.
The Fa0/24 interface of S1 is configured with the same MAC address as the Fa0/2 interface.
S1 has been configured with a switchport port-security aging command.
The MAC address of PC1 that connects to the Fa0/2 interface is not the configured MAC address.

Question

A technician is about to install and configure a wireless network at a small branch office. What is the first security measure the technician should apply immediately upon powering up the wireless router?

Configure encryption on the wireless router and the connected wireless devices.
Disable the wireless network SSID broadcast.
Change the default user-name and password of the wireless router.
Enable MAC address filtering on the wireless router.

Question

A network administrator is required to upgrade wireless access to end users in a building. To provide data rates up to 1.3 Gb/s and still be backward compatible with older devices, which wireless standard should be implemented?

802.11n
802.11ac
802.11g
802.11b

Question

A PC connects to an IP phone that connects to a switch through port Fa0/2.

Refer to the exhibit. Port Fa0/2 has already been configured appropriately. The IP phone and PC work properly. Which switch configuration would be most appropriate for port Fa0/2 if the network administrator has the following goals?

No one is allowed to disconnect the IP phone or the PC and connect some other wired device.
If a different device is connected, port Fa0/2 is shut down.
The switch should automatically detect the MAC address of the IP phone and the PC and add those addresses to the running configuration.

SWA(config-if)# switchport port-security
SWA(config-if)# switchport port-security mac-address sticky
SWA(config-if)# switchport port-security mac-address sticky
SWA(config-if)# switchport port-security maximum 2
SWA(config-if)# switchport port-security
SWA(config-if)# switchport port-security maximum 2
SWA(config-if)# switchport port-security mac-address sticky
SWA(config-if)# switchport port-security
SWA(config-if)# switchport port-security maximum 2
SWA(config-if)# switchport port-security mac-address sticky
SWA(config-if)# switchport port-security violation restrict

Question

Refer to the exhibit. What can be determined about port security from the information that is shown?

The port has been shut down.
The port has two attached devices.
The port violation mode is the default for any port that has port security enabled.
The port has the maximum number of MAC addresses that is supported by a Layer 2 switch port which is configured for port security.

Question

Which type of management frame may regularly be broadcast by an AP?

Beacon
Probe request
Authentication
Probe response

Question

What is an advantage of SSID cloaking?

It provides free Internet access in public locations where knowing the SSID is of no concern.
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.
It is the best way to secure a wireless network.

Question

The company handbook states that employees cannot have microwave ovens in their offices. Instead, all employees must use the microwave ovens located in the employee cafeteria. What wireless security risk is the company trying to avoid?

Accidental interference
Improperly configured devices
Interception of data
Rogue access points

Question

What type of wireless antenna is best suited for providing coverage in large open spaces, such as hallways or large conference rooms?

Omnidirectional
Directional
Yagi
Dish

Question

What are the two methods that are used by a wireless NIC to discover an AP? (Choose two.)

Sending an ARP request
Delivering a broadcast frame
Transmitting a probe request
Initiating a three-way handshake
Receiving a broadcast beacon frame

Question

Which wireless network topology would be used by network engineers to provide a wireless network for an entire college building?

Ad hoc
Hotspot
Infrastructure
Mixed mode

Question

What is a wireless security mode that requires a RADIUS server to authenticate wireless users?

Enterprise
Personal
Shared key
WEP

Question

Which authentication method stores usernames and passwords in the router and is ideal for small networks?

Local AAA
Local AAA over RADIUS
Local AAA over TACACS+
Server-based AAA
Server-based AAA over RADIUS
Server-based AAA over TACACS+

Question

Which component of AAA is used to determine which resources a user can access and which operations the user is allowed to perform?

Auditing
Accounting
Authorization
Authentication

Question

Refer to the exhibit. Port security has been configured on the Fa 0/12 interface of switch S1. What action will occur when PC1 is attached to switch S1 with the applied configuration?

Frames from PC1 will be dropped, and a log message will be created.
Frames from PC1 will be dropped, and there will be no log of the violation.
Frames from PC1 will cause the interface to shut down immediately, and a log entry will be made.
Frames from PC1 will be forwarded to its destination, and a log entry will be created.
Frames from PC1 will be forwarded to its destination, but a log entry will not be created.
Frames from PC1 will be forwarded since the switchport port-security violation command is missing.

Question

What are two protocols that are used by AAA to authenticate users against a central database of usernames and password? (Choose two.)

NTP
TACACS+
SSH
HTTPS
RADIUS
CHAP

Question

Which three parameters would need to be changed if best practices are being implemented for a home wireless AP? (Choose three.)

SSID
AP password
Antenna frequency
Wireless beacon time
Wireless network password
Wireless client operating system password

Question

A network administrator is configuring port security on a Cisco switch. The company security policy specifies that when a violation occurs, packets with unknown source addresses should be dropped and no notification should be sent. Which violation mode should be configured on the interfaces?

Off
Restrict
Protect
Shutdown

Question

As part of the new security policy, all switches on the network are configured to automatically learn MAC addresses for each port. All running configurations are saved at the start and close of every business day. A severe thunderstorm causes an extended power outage several hours after the close of business. When the switches are brought back online, the dynamically learned MAC addresses are retained. Which port security configuration enabled this?

Auto secure MAC addresses
Dynamic secure MAC addresses
Static secure MAC addresses
Sticky secure MAC addresses

Question

What two IEEE 802.11 wireless standards operate only in the 5 GHz range? (Choose two.)

802.11a
802.11b
802.11g
802.11n
802.11ac
802.11ad

Question

What device is considered a supplicant during the 802.1X authentication process?

The client that is requesting authentication
The switch that is controlling network access
The authentication server that is performing client authentication
The router that is serving as the default gateway

Question

Which component of AAA allows an administrator to track individuals who access network resources and any changes that are made to those resources?

Accessibility
Accounting
Authentication
Authorization

Question

What security benefit is gained from enabling BPDU guard on PortFast enabled interfaces?

Preventing rogue switches from being added to the network
Protecting against Layer 2 loops
Enforcing the placement of root bridges
Preventing buffer overflow attacks

Question

What is the result of a DHCP starvation attack?

Legitimate clients are unable to lease IP addresses.
Clients receive IP address assignments from a rogue DHCP server.
The attacker provides incorrect DNS and default gateway information to clients.
The IP addresses assigned to legitimate clients are hijacked.

Question

What represents a best practice concerning discovery protocols such as CDP and LLDP on network devices?

Use the open standard LLDP rather than CDP.
Disable both protocols on all interfaces where they are not required.
Use the default router settings for CDP and LLDP.
Enable CDP on edge devices, and enable LLDP on interior devices.

Question

Which type of VLAN-hopping attack may be prevented by designating an unused VLAN as the native VLAN?

DTP spoofing
DHCP spoofing
VLAN double-tagging
DHCP starvation

Question

Match each functional component of AAA with its description.

Authorization → Determines what resources users can access or the operations they are allowed to perform
Authentication → Proves that users are who they say they are
Accounting → Records what users do and what they access

Question

A technician is configuring the channel on a wireless router to either 1, 6, or 11. What is the purpose of adjusting the channel?

To disable broadcasting of the SSID
To enable different 802.11 standards
To provide stronger security modes
To avoid interference from nearby wireless devices

Question

While attending a conference, participants are using laptops for network connectivity. When a guest speaker attempts to connect to the network, the laptop fails to display any available wireless networks. The access point must be operating in which mode?

Active
Mixed
Open
Passive

Question

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?

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

Question

A laptop cannot connect to a wireless access point. Which two troubleshooting steps should be taken first? (Choose two.)

Ensure that the wireless NIC is enabled.
Ensure that the laptop antenna is attached.
Ensure that the wireless SSID is chosen.
Ensure that the correct network media is selected.
Ensure that the NIC is configured for the proper frequency.

Question

A network engineer is troubleshooting a newly deployed wireless network that is using the latest 802.11 standards. When users access high bandwidth services such as streaming video, the wireless network performance is poor. To improve performance the network engineer decides to configure a 5 Ghz frequency band SSID and train users to use that SSID for streaming media services. Why might this solution improve the wireless network performance for that type of service?

The 5 GHz band has a greater range and is therefore likely to be interference-free.
Requiring the users to switch to the 5 GHz band for streaming media is inconvenient and will result in fewer users accessing these services.
The 5 GHz band has more channels and is less crowded than the 2.4 GHz band, which makes it more suited to streaming multimedia.
The only users that can switch to the 5 GHz band will be those with the latest wireless NICs, which will reduce usage.

Question

Refer to the exhibit. PC1 and PC2 should be able to obtain IP address assignments from the DHCP server. How many ports among switches should be assigned as trusted ports as part of the DHCP snooping configuration?

1
3
5
7

Question

What are three techniques for mitigating VLAN attacks? (Choose three.)

Disable DTP.
Enable trunking manually.
Set the native VLAN to an unused VLAN.
Enable BPDU guard.
Enable Source Guard.
Use private VLANs.

Question

An IT security specialist enables port security on a switch port of a Cisco switch. What is the default violation mode in use until the switch port is configured to use a different violation mode?

Restrict
Disabled
Protect
Shutdown

Question

Which protocol should be used to mitigate the vulnerability of using Telnet to remotely manage network devices?

SCP
SSH
TFTP
SNMP

Question

Which two Cisco solutions help prevent DHCP starvation attacks? (Choose two.)

Port Security
IP Source Guard
DHCP Snooping
Web Security Appliance
Dynamic ARP Inspection

Question

Which statement describes the behavior of a switch when the MAC address table is full?

It treats frames as unknown unicast and floods all incoming frames to all ports on the switch.
It treats frames as unknown unicast and floods all incoming frames to all ports within the local VLAN.
It treats frames as unknown unicast and floods all incoming frames to all ports within the collision domain.
It treats frames as unknown unicast and floods all incoming frames to all ports across multiple switches.

Question

Which feature on a switch makes it vulnerable to VLAN hopping attacks?

The mixed duplex mode enabled for all ports by default
The limited size of content-addressable memory space
Mixed port bandwidth support enabled for all ports by default
The automatic trunking port feature enabled for all ports by default

Question

Which feature or configuration on a switch makes it vulnerable to VLAN double-tagging attacks?

Mixed duplex mode enabled for all ports by default
The limited size of content-addressable memory space
The automatic trunking port feature enabled for all ports by default
The native VLAN of the trunking port being the same as a user VLAN

Question

A network administrator enters the following commands on the switch SW1.

SW1(config)# interface range fa0/5 – 10
SW1(config-if)# ip dhcp snooping limit rate 6

What is the effect after these commands are entered?

FastEthernet ports 5 through 10 can receive up to 6 DHCP discovery messages per second.
FastEthernet ports 5 through 10 can receive up to 6 DHCP messages per second of any type.
If any of the FastEthernet ports 5 through 10 receive more than 6 DHCP messages per second, the port will be shut down.
If any of the FastEthernet ports 5 through 10 receive more than 6 DHCP messages per second, the port will continue to operate and an error message will be sent to the network administrator.

Question

A network administrator is configuring DAI on a switch with the command ip arp inspection validate src-mac. What is the purpose of this configuration command?

It checks the source MAC address in the Ethernet header against the MAC address table.
It checks the source MAC address in the Ethernet header against the user-configured ARP ACLs.
It checks the source MAC address in the Ethernet header against the target MAC address in the ARP body.
It checks the source MAC address in the Ethernet header against the sender MAC address in the ARP body.

Question

Which two commands can be used to enable BPDU guard on a switch? (Choose two.)

S1(config)# spanning-tree bpduguard default
S1(config-if)# spanning-tree bpduguard enable
S1(config-if)# enable spanning-tree bpduguard
S1(config-if)# spanning-tree portfast bpduguard
S1(config)# spanning-tree portfast bpduguard default

Question

A technician is troubleshooting a slow WLAN that consists of 802.11b and 802.11g devices. A new 802.11n/ac dual-band router has been deployed on the network to replace the old 802.11g router. What can the technician do to address the slow wireless speed?

Change the SSID.
Configure devices to use a different channel.
Split the wireless traffic between the 802.11n 2.4 GHz band and the 5 GHz band.
Update the firmware on the new router.

Question

What is the function provided by CAPWAP protocol in a corporate wireless network?

CAPWAP provides the encapsulation and forwarding of wireless user traffic between an access point and a wireless LAN controller.
CAPWAP provides the encryption of wireless user traffic between an access point and a wireless client.
CAPWAP provides connectivity between an access point using IPv6 addressing and a wireless client using IPv4 addressing.
CAPWAP creates a tunnel on Transmission Control Protocol (TCP) ports in order to allow a WLC to configure an autonomous access point.

Question

On a Cisco 3504 WLC dashboard, which option provides access to the full menu of features?

Rogues
Advanced
Access Points
Network Summary

Question

On a Cisco 3504 WLC Summary page (Advanced > Summary), which tab allows a network administrator to access and configure a WLAN for a specific security option such as WPA2?

WLANs
SECURITY
WIRELESS
MANAGEMENT

Question

Which protocol can be used to monitor the network?

AAA
SNMP
DHCP
RADIUS

Question

A network administrator deploys a wireless router in a small law firm. Employee laptops join the WLAN and receive IP addresses in the 10.0.10.0/24 network. Which service is used on the wireless router to allow the employee laptops to access the internet?

DNS
NAT
DHCP
RADIUS

Question

Which service can be used on a wireless router to prioritize network traffic among different types of applications so that voice and video data are prioritized over email and web data?

NAT
QoS
DNS
DHCP

Question

A network administrator of a college is configuring the WLAN user authentication process. Wireless users are required to enter username and password credentials that will be verified by a server. Which server would provide such service?

AAA
NAT
SNMP
RADIUS

Question

Which step is required before creating a new WLAN on a Cisco 3500 series WLC?

Create a new SSID.
Create a new VLAN interface.
Build or have an SNMP server available.
Build or have a RADIUS server available.

Question

A network administrator is configuring a RADIUS server connection on a Cisco 3500 series WLC. The configuration requires a shared secret password. What is the purpose for the shared secret password?

It allows users to authenticate and access the WLAN.
It is used by the RADIUS server to authenticate WLAN users.
It is used to authenticate and encrypt user data on the WLAN.
It is used to encrypt the messages between the WLC and the RADIUS server.

Question

A network administrator is working to improve WLAN performance on a dual-band wireless router. What is a simple way to achieve a split-the-traffic result?

Require all wireless devices to use the 802.11n standard.
Check and keep the firmware of the wireless router updated.
Make sure that different SSIDs are used for the 2.4 GHz and 5 GHz bands.
Add a Wi-Fi range extender to the WLAN and set the AP and the range extender to serve different bands.

Question

PT Activity

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Which event will take place if there is a port security violation on switch S1 interface Fa0/1?

A notification is sent.
A syslog message is logged.
Packets with unknown source addresses will be dropped.
The interface will go into error-disabled state.

Question

Which access control component, implementation, or protocol controls what users can do on the network?

Authorization
Authentication
Accounting
802.1X

Question

Which access control component, implementation, or protocol is implemented either locally or as a server-based solution?

Authentication
Authorization
Accounting
802.1X

Question

Which access control component, implementation, or protocol audits what users actions are performed on the network?

Accounting
Authorization
802.1X
Authentication

Question

Which access control component, implementation, or protocol restricts LAN access through publicly accessible switch ports?

802.1X
Accounting
Authorization
Authentication

Question

Which access control component, implementation, or protocol logs EXEC and configuration commands configured by a user?

Accounting
802.1X
Authorization
Authentication

Question

Which access control component, implementation, or protocol controls who is permitted to access a network?

Authentication
Authorization
Accounting
802.1X

Question

Which access control component, implementation, or protocol collects and reports usage data?

Accounting
Authorization
802.1X
Authentication

Question

Which access control component, implementation, or protocol indicates success or failure of a client-requested service with a PASS or FAIL message?

Authorization
Accounting
Authentication
802.1X

Question

Which access control component, implementation, or protocol is based on device roles of supplicant, authenticator, and authentication server?

802.1X
Accounting
Authorization
Authentication

Question

Which access control component, implementation, or protocol is based upon usernames and passwords?

Authentication
Authorization
Accounting
802.1X

Question

Which type of wireless network uses transmitters to provide coverage over an extensive geographic area?

Wireless wide-area network
Wireless metropolitan-area network
Wireless local-area network
Wireless personal-area network

Question

Which type of wireless network commonly uses Bluetooth or ZigBee devices?

Wireless personal-area network
Wireless local-area network
Wireless metropolitan-area network
Wireless wide-area network

Question

Which type of wireless network uses transmitters to provide wireless service over a large urban region?

Wireless metropolitan-area network
Wireless local-area network
Wireless wide-area network
Wireless personal-area network

Question

Which type of wireless network is suitable for use in a home or office?

Wireless local-area network
Wireless metropolitan-area network
Wireless personal-area network
Wireless wide-area network

Question

Which type of wireless network often makes use of devices mounted on buildings?

Wireless metropolitan-area network
Wireless wide-area network
Wireless local-area network
Wireless personal-area network

Question

Which type of wireless network is suitable for national and global communications?

Wireless wide-area network
Wireless metropolitan-area network
Wireless local-area network
Wireless personal-area network

Question

Which type of wireless network uses transmitters to cover a medium-sized network, usually up to 300 feet (91.4 meters)?

Wireless local-area network
Wireless personal-area network
Wireless metropolitan-area network
Wireless wide-area network

Question

Which type of wireless network is based on the 802.11 standard and a 2.4-GHz or 5-GHz radio frequency?

Wireless local-area network
Wireless metropolitan-area network
Wireless personal-area network
Wireless wide-area network

Question

Which type of wireless network is suitable for providing wireless access to a city or district?

Wireless metropolitan-area network
Wireless local-area network
Wireless wide-area network
Wireless personal-area network

Question

Which type of wireless network uses low powered transmitters for a short-range network, usually 20 to 30 ft. (6 to 9 meters)?

Wireless personal-area network
Wireless local-area network
Wireless metropolitan-area network
Wireless wide-area network