Cisco 200-125 Online Practice Questions and Exam Preparation

Cisco 200-125 Online Questions & Answers

• Question 1271:

  Scenario:

  You are a junior network engineer for a financial company, and the main office network is experiencing network issues. Troubleshoot the network issues.

  Router R1 connects the main office to the internet, and routers R2 and R3 are internal routers.

  NAT is enabled on router R1.

  The routing protocol that is enabled between routers R1, R2 and R3 is RIPv2.

  R1 sends the default route into RIPv2 for the internal routers to forward internet traffic to R1.

  You have console access on R1, R2 and R3 devices. Use only show commands to troubleshoot the issues.

  

  

  

  Why applications that are installed on PC's in R2 LAN network 10.100.20.0/24 are unable to communicate with server1?

  A. A standard ACL statement that is configured on R1 is blocking the traffic sourced from Server1 network.
  B. A standard ACL statement that is configured on R2 is blocking the traffic sourced from Setver1 network.
  C. A standard ACL statement that is configured on R2 is blocking the traffic sourced from R2 LAN network.
  D. A standard ACL statement that is configured on R1 is blocking the traffic sourced from R2 LAM network
  B. A standard ACL statement that is configured on R2 is blocking the traffic sourced from Setver1 network.

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  Check the below now:

  

• Question 1272:

  In which CLI configuration mode can you configure the hostname of a device?

  A. line mode
  B. interface mode
  C. global mode
  D. router mode
  C. global mode

• Question 1273:

  Refer to the exhibit.

  

  A technician has installed SwitchB and needs to configure it for remote access from the management workstation connected to SwitchA. Which set of commands is required to accomplish this task?

  A. SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown
  B. SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# ip default-gateway 192.168.8.254 255.255.255.0 SwitchB(config-if)# no shutdown
  C. SwitchB(config)# ip default-gateway 192.168.8.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown
  D. SwitchB(config)# ip default-network 192.168.8.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown
  E. SwitchB(config)# ip route 192.168.8.254 255.255.255.0 SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown
  C. SwitchB(config)# ip default-gateway 192.168.8.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown

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  To remote access to SwitchB, it must have a management IP address on a VLAN on that switch. Traditionally, we often use VLAN 1 as the management VLAN (but in fact it is not secure). In the exhibit, we can recognize that the Management Workstation is in a different subnet from the SwitchB. For intersubnetwork communication to occur, you must configure at least one default gateway. This default gateway is used to forward traffic originating from the switch only, not to forward traffic sent by devices connected to the switch.

• Question 1274:

  Refer to the exhibit.

  

  Based on the information given, which switch will be elected root bridge and why?

  A. Switch A, because it has the lowest MAC address
  B. Switch A, because it is the most centrally located switch
  C. Switch B, because it has the highest MAC address
  D. Switch C, because it is the most centrally located switch
  E. Switch C, because it has the lowest priority
  F. Switch D, because it has the highest priority
  E. Switch C, because it has the lowest priority

  ---

  To elect the root bridge in the LAN, first check the priority value. The switch having the lowest priority will win the election process. If Priority Value is the same then it checks the MAC Address; the switch having the lowest MAC Address will become the root bridge. In this case, switch C has the lowest MAC Address so it becomes the root bridge.

• Question 1275:

  How to enable vlans automatically across multiple switches?

  A. Configure VLAN
  B. Confiture NTP
  C. Configure each VLAN
  D. Configure VTP
  D. Configure VTP

• Question 1276:

  which two protocols dose the internet layer in the TCP/IP model encapsulate?(choose two)

  A. DNS
  B. SMTP
  C. ICMP
  D. ARP
  E. TCP
  C. ICMP
  D. ARP

• Question 1277:

  A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem?

  Router(config)# router ospf 1 Router(config-router)# network 10.0.0.0 255.0.0.0 area 0

  A. The process id is configured improperly.
  B. The OSPF area is configured improperly.
  C. The network wildcard mask is configured improperly.
  D. The network number is configured improperly.
  E. The AS is configured improperly.
  F. The network subnet mask is configured improperly.
  C. The network wildcard mask is configured improperly.

  ---

  When configuring OSPF, the mask used for the network statement is a wildcard mask similar to an access list. In this specific example, the correct syntax would have been "network 10.0.0.0 0.0.0.255 area 0."

• Question 1278:

  Which factor must you take into consideration before deciding to use Metro Ethernet to connect to a WAN?

  A. It is most appropriate for networks that are limited to a small geographic area
  B. It requires VPLS to be supported by MPLS
  C. It supports only point-to-point connections.
  D. WAN aggregation is not supported.
  B. It requires VPLS to be supported by MPLS

• Question 1279:

  Which component of an Ethernet frame is used to notify a host that traffic is coming?

  A. preamble
  B. Data field
  C. start of frame delimiter
  D. Type field
  A. preamble

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  The preamble of an Ethernet frame consists of a 7-octet pattern of alternating 1 and 0 bits, which allows devices on the network to easily detect a new incoming frame. The SFDstart frame delimiter is designed to break this pattern and signal the start of the actual frame.

• Question 1280:

  Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state?

  A. converged
  B. redundant
  C. provisioned
  D. spanned
  A. converged

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  Spanning Tree Protocol convergence (Layer 2 convergence) happens when bridges and switches have transitioned to either the forwarding or blocking state. When layer 2 is converged, root bridge is elected and all port roles (Root, Designated and Non-Designated) in all switches are selected.