200-355 Latest Certification Tests

Question: 1

In the current RF environment, the noise floor is -95 dBm. A tablet needs an SNR of 25 dB to transmit at the required speed. What must the RSSI cell edge be to meet the required SNR?

A. -120 dBm

B. -90 dBm

C. -70 dBm

D. -60 dBm

E. -50 dBm

Answer: C

Question: 2

An access point is currently transmitting at 4 mW. The customer needs to increase its signal strength by 6 dB to create a larger wireless cell. What should the new transmit power be?

A. 8 mW

B. 10 mW

C. 12 mW

D. 16 mW

E. 24 mW

Answer: D

Question: 3

A wireless engineer is designing the wireless networking for a company with offices in two different locations. Which two regulatory bodies should they check to find the maximum EIRP allowed? (Choose two.)

A. IEEE

B. FCC

C. ITU-R

D. ETSI

E. Wi-Fi Alliance

Answer: B, D

Question: 4

After installing a Cisco 5508 Wireless Controller using the default settings, how often will the RRM update occur?

A. 30 seconds

B. 60 seconds

C. 300 seconds

D. 600 seconds

E. 3600 seconds

F. 7200 seconds

Answer: D

Question: 5

A customer has requested a single point of policy enforcement for LAN and WLAN. Which deployment model should be used?

A. converged

B. autonomous

C. FlexConnect

D. centralized

Answer: A

Question: 6

A customer has asked for the proper port configuration to allow for LAG on a Cisco 2504 Wireless Controller to a Cisco IOS switch. Which EtherChannel mode should be used on the switch to allow for the WLC to connect?

A. on

B. auto

C. desirable

D. passive

E. active

Answer: A

Question: 7

A customer has asked for its wireless equipment to be managed as securely as possible. Which three management protocols will provide encrypted access to the equipment? (Choose three.)

A. Secure Shell

B. HTTPS

C. SNMPv3

D. Telnet

E. SNMPv2c

F. HTTP

Answer: A, B, C

Question: 8

When deploying a Cisco Cloud Wireless Infrastructure, what two destination ports must be open? (Choose two.)

A. TCP/5246

B. UDP/5246

C. TCP/5247

D. UDP/5247

E. TCP/7351

F. UDP/7351

G. TCP/7734

H. UDP/7734

Answer: F, G

Question: 9

A help desk engineer is attempting to perform a remote packet capture on the wireless network. Which access point mode is necessary to perform this function?

A. sniffer

B. SE-Connect

C. monitor

D. rogue detector

E. FlexConnect

Answer: A

Question: 10

Refer to the exhibit. A help desk ticket has been entered for the wireless infrastructure. A wireless client is not able to connect at IEEE 802.11n rates. Which option allows for connectivity?

A. Set WMM mode to Optional or Required.

B. Set Quality of Service (QoS) to Silver.

C. Set Quality of Service (QoS) to Platinum.

D. Set 7920 AP CAC to Enabled.

Answer: A

Question: 11

An engineer has been asked to upgrade the FUS on the Wireless LAN controller. How can they monitor the status of the upgrade?

A. WLC GUI

B. WLC CLI

C. WLC Console

D. WLC Management in Prime Infrastructure

Answer: C

Question: 12

During a wireless site survey, the signal strength drops significantly when outside of the room containing the access point. The building is made of wood and drywall. This is an example of which wireless anomaly?

A. absorption

B. refraction

C. fading

D. multipath

E. reflection

Answer: A

Question: 13

A wireless engineer has been asked to plan a deployment covering the aisles of a warehouse with optimal coverage while bleeding RF across aisles. Which antenna type provides the necessary coverage?

A. patch

B. omnidirectional

C. Yagi

D. parabolic dish

Answer: A

Question: 14

Refer to the exhibit. The wireless engineer has deployed the Cisco 5508 Wireless Controller. The controller is responding on the service port; however, it will not respond on the management interface. Which configuration revision will fix the management interface?

A. On the switch interface, configure switch(config-if)#switchport trunk allowed vlan add 10.

B. On the WLC management interface, disable LAG on the management network.

C. On the switch interface, configure switch(config-if)#switchport trunk allowed vlan 10.

D. On the WLC management interface, change the VLAN ID to 20.

E. On the switch interface, configure no spanning-tree portfast trunk.

F. On WLC Controller> General, disable LAG and reboot.

Answer: A

Question: 15

A help desk ticket states that a wireless access point has not joined its controller and is flashing rapidly. How can the help desk administer the access point with the default settings?

A. console

B. SSH

C. Telnet

D. HTTP

E. HTTPS

Answer: A

Question: 16

After you configure the Cisco 5508 Wireless Controller v7.6, a customer requests an SSID that allows for client web authentication with email input. Which authentication method should be used?

A. pass-through

B. authentication

C. splash page web redirect

D. conditional web redirect

E. on MAC filter failure

Answer: A

Question: 17

Which two principles must be considered when deploying a wireless network through a wooded area? (Choose two.)

A. absorption

B. reflection

C. diffraction

D. scattering

E. refraction

Answer: A, D

Question: 18

What is an interferer that an engineer may see in Cisco CleanAir?

A. microwave ovens

B. rogue APs

C. malicious clients

D. co-channel interference

Answer: A

Question: 19

A network engineer notices that two mesh APs are having problems communicating. After reviewing the current radio configurations, it is noted that one AP is transmitting at 3 mW while the other is transmitting at 60 mW. How many decibels would the 3-mW AP need its power increased to match the 60-mW AP?

A. 8

B. 12

C. 13

D. 20

E. 57

Answer: C

Question: 20

A network engineer requires an antenna for a point-to-point bridge with at least 20 dBi of gain. Which antenna is appropriate for the task?

A. Yagi

B. patch

C. parabolic dish

D. dipole

E. internal omnidirectional

Answer: C

Question: 21

An engineer needs to find out the maximum EIRP allowed for their office in Asia. What regulatory body should be contacted?

A. CRTC

B. ETSI

C. IEEE

D. NTT

Answer: D

Question: 22

A wireless engineer has an access point using the 5.725-GHz channel in the United States. In which band is the AP operating?

A. UNII-1

B. UNII-2

C. UNII-2 Extended

D. UNII-3

Answer: C

Question: 23

Which RRM feature allows an access point to avoid non-IEEE 802.11 interference?

A. DCA

B. TPC

C. RF groups

D. coverage hole detection

Answer: A

Question: 24

Which IEEE 802.11n client feature can combine the signal from multiple antennas and radio chains to improve SNR?

A. channel aggregation

B. spatial multiplexing

C. MAC layer efficiency

D. TxBF

E. MRC

F. MCS

Answer: E

Question: 25

An engineer needs an AP with at least two spatial streams, four receivers, and three transmitters. Which device meets these requirements?

A. 2x4:3

B. 2x3:4

C. 4x3:2

D. 3x4:2

Answer: D

Question: 26

Which option is used to form the BSSID in a BSS?

A. AP radio MAC address

B. AP wired MAC address

C. AP serial number

D. client radio MAC address

E. client wired MAC address

F. client serial number

Answer: A

Question: 27

A network engineer at a retail store needs a wireless deployment that can be easily maintained and verified for PCI compliance. What solution will meet this need with the least work?

A. Cloud

B. Autonomous

C. FlexConnect

D. Centralized

Answer: A

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