Cisco 200-125 Online Practice Questions and Exam Preparation

Cisco 200-125 Online Questions & Answers

• Question 1181:

  Which two statements about multicast addresses are true? (Choose two)

  A. 01-00-53-ab-11-c1 is a multicast MAC address
  B. 01-00-5e-7b-11-c1 is a multicast MAC address
  C. They allow one-to-one communication
  D. They allow one-to-many communication
  E. 02-00-5e-7f-11-c1 is a multicast MAC address
  A. 01-00-53-ab-11-c1 is a multicast MAC address
  B. 01-00-5e-7b-11-c1 is a multicast MAC address

• Question 1182:

  which six-byte field in a basic ethernet frame must be an individual address ?

  A. FCS
  B. SOF
  C. SA
  D. DA
  C. SA

• Question 1183:

  Refer to the exhibit.

  

  A frame on VLAN 1 on switch S1 is sent to switch S2 where the frame is received on VLAN

  2. What causes this behavior?

  A. trunk mode mismatches
  B. allowing only VLAN 2 on the destination
  C. native VLAN mismatches
  D. VLANs that do not correspond to a unique IP subnet
  C. native VLAN mismatches

  ---

  Untagged frames are encapsulated with the native VLAN. In this case, the native VLANs are different so although S1 will tag it as VLAN 1 it will be received by S2.

• Question 1184:

  Which statement about native VLAN traffic is true?

  A. Cisco Discovery Protocol traffic travels on the native VLAN by default
  B. Traffic on the native VLAN is tagged with 1 by default
  C. Control plane traffic is blocked on the native VLAN.
  D. The native VLAN is typically disabled for security reasons
  A. Cisco Discovery Protocol traffic travels on the native VLAN by default

• Question 1185:

  What are three reasons to collect Netflow data on a company network? (Choose three.)

  A. To identify applications causing congestion.
  B. To authorize user network access.
  C. To report and alert link up / down instances.
  D. To diagnose slow network performance, bandwidth hogs, and bandwidth utilization.
  E. To detect suboptimal routing in the network.
  F. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.
  A. To identify applications causing congestion.
  D. To diagnose slow network performance, bandwidth hogs, and bandwidth utilization.
  F. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.

  ---

  NetFlow facilitates solutions to many common problems encountered by IT professionals. + Analyze new applications and their network impact Identify new application network loads such as VoIP or remote site additions.

  +

  Reduction in peak WAN traffic

  Use NetFlow statistics to measure WAN traffic improvement from application-policy changes; understand who is utilizing the network and the network top talkers. + Troubleshooting and understanding network pain points Diagnose slow

  network performance, bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools. -> D is correct.

  +

  Detection of unauthorized WAN traffic

  Avoid costly upgrades by identifying the applications causing congestion. -> A is correct.

  +

  Security and anomaly detection

  NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-Mars.

  +

  Validation of QoS parameters

  Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is over- or under-subscribed.-> F is correct.

• Question 1186:

  Drag and Drop

  Select and Place:

  

  

• Question 1187:

  Refer to the exhibit.

  

  A network administrator is configuring an EtherChannel between SW1 and SW2. The SW1 configuration is shown. What is the correct configuration for SW2?

  A. interface FastEthernet 0/1 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk
  B. interface FastEthernet 0/1 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk
  C. interface FastEthernet 0/1 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk
  D. interface FastEthernet 0/1 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk
  C. interface FastEthernet 0/1 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk

  ---

  If the etherchannel was configured with mode "auto", it was using PagP, so, we need to configure the other switch with "desirable" mode.

  PagP modes: auto | Desirable LACP modes: active | pasive

• Question 1188:

  Which three characteristics are representative of a link-state routing protocol? (Choose three.)

  A. provides common view of entire topology
  B. exchanges routing tables with neighbors
  C. calculates shortest path
  D. utilizes event-triggered updates
  E. utilizes frequent periodic updates
  A. provides common view of entire topology
  C. calculates shortest path
  D. utilizes event-triggered updates

• Question 1189:

  Scenario:

  You work as Junior Network Engineer for RADO Network Ltd company. Your colleague has set up a Layer 2 network for testing purpose in one of your client locations. You must verify the configuration and fix if any issues identified as per customer requirements.

  Topology Details

  -

  Three switches (SVV1. SW2, and SW3) are connected using Ethernet link as shown in the topology diagram.

  -

  Server1 and PC1 are connected to SW1 and are assigned to VLAN 500 and VLAN 600 respectively.

  -

  Server2 and PC2 are connected to SW2 and are assigned to VLAN 500 and VLAN 600 respectively.

  -PC3 is connected to SW3 and assigned to VLAN 600. Customer requirements

  -

  Verify if switch ports are assigned in correct VLANs as per topology diagram Identify and fix any misconfigurations found in three switches.

  -

  Verify if trunk links are operational between switches and the IEEE 802.1 q trunk encapsulation method is used Identrfy and fix if any misconfigurations are found in the trunk configuration

  -

  You must make sure the ports connected between switches are set as trunk ports.

  Special Note: To gain the maximum number you must make sure that VLANs are assigned to switch ports as per customer requirements and make sure the trunk links are operational between switches Do not change VLAN names and VLAN number that are already configured in the switches

  

  Correct Answer. Check the answer below
  Check the answer below

  ---

  Switch 1 port E0/1 WAS CONNECTED TO A COMPUTER WITH A STRAIGHT THROUGH CABLE AND AS WELL AS ROLLOVER CABLE (FOR CONFIGURATION OF SWITCH PORTS ON THIS SWITCH) WHICH WAS SHOWN IN VLAN 600 IN THE DIAGRAM BUT ACTUALLY THAT PC WAS NOT IN VLAN 600 AFTER CHECKING THE VLAN CONFIGURATION USING SHOW VLAN COMMAND. INSTEAD THIS PORT WAS CONFIGURED IN VLAN 1. SO WE NEEDED TO PUT THAT PC IN VAN 600 USING FOLLOWING COMMANDSSW1(CONFIG)# INTERFACE E0/0 SW1(CONFIG-IF)#SWITCHPORT MODE ACCESS SW1(CONFIG-IF)#SWITCHPORT ACCESS VLAN 600

  NOW THE E0/0-PORT OF THIS SWITCH-SW1 WAS RECEIVING NATIVE VLAN MISMATCH FROM

  SW3 SWITCH-PORT E0/1. ALSO E0/0 OF SW1 AND E0/1 OF SW3 WERE NOT IN TRUNKING MODE. AND THE

• Question 1190:

  Which two options describe benefits of aggregated chassis technology ( choose 2) ?

  A. it reduces management overhead.
  B. switches can be located anywhere regardless of their physical distance from one another.
  C. it requires only one IP address per VLAN.
  D. it requires only Three IP address per VLAN.
  E. it supports HSRP VRRP and GLBP.
  F. it support redundant configuration files.
  A. it reduces management overhead.
  C. it requires only one IP address per VLAN.