Cisco 400-201 Online Practice Questions and Exam Preparation

Cisco 400-201 Online Questions & Answers

• Question 81:

  Which is the function of the rd auto command when applied on Cisco ASR 9000 router under BGP process?

  A. automatically assigns a unique route distinguisher
  B. specifies a route-target extended community
  C. associates the BGP process with a VRF
  D. enables the ASBR functionalities
  A. automatically assigns a unique route distinguisher

• Question 82:

  Which three statements about the route target (RT) are true? (Choose three.)

  A. The RT is a BGP extended community.
  B. The RT is an 8-byte field that is prefixed to an IPv4 address to make it a unique VPNv4 address.
  C. When a VPN route that is learned from a CE router is injected into BGP, one or more RTs are associated with it
  D. The distribution of VPN routing information is controlled through the use of VPN RTs
  E. When a VPN route that is learned from a CE router is injected into BGP, there is always one RT that is associated with it.
  A. The RT is a BGP extended community.
  C. When a VPN route that is learned from a CE router is injected into BGP, one or more RTs are associated with it
  D. The distribution of VPN routing information is controlled through the use of VPN RTs

• Question 83:

  An engineer deploys a new Cisco IOS XR router and connects a Gigbit Ethernet port to an existing Cisco Catalyst 3650 Series Switch. The engineer uses known good optics and fiber, but the link has not come up and it is stuck in the down/

  down state.

  What is the root cause of this issue?

  A. Cisco IOS XR devices must use copper connections to Catalyst 3650 Series Switches
  B. UDLD must be enabled on the Catalyst 3650 Series switch
  C. CDP is not enabled on the Cisco IOS XR device
  D. Auto negation must be disabled on the Catalyst 3650 Series Switch
  D. Auto negation must be disabled on the Catalyst 3650 Series Switch

• Question 84:

  Which two statements about 10 Gigabit Ethernet (10GE) are true? (Choose two.)

  A. 10 Gigabit Ethernet does not support VLAN definition
  B. 10 Gigabit Ethernet supports full duplex links, but does not support half duplex links.
  C. 10 Gigabit Ethernet supports unshielded or shielded twisted-pair cable connections
  D. 10 Gigabit Ethernet supports Carrier Sense Multiple Access with Collision Detection (CSMA/CD).
  E. 10 Gigabit Ethernet supports optical fiber connections in single mode only. Multi mode is not supported.
  B. 10 Gigabit Ethernet supports full duplex links, but does not support half duplex links.
  C. 10 Gigabit Ethernet supports unshielded or shielded twisted-pair cable connections

• Question 85:

  An operator enabled BFD in echo mode and now CPU is high. Which option is the most likely solution to the problem?

  A. Disable ICMP redirects on an interface
  B. Change from echo mode to asynchronous mode
  C. Disable BFD altogether
  D. Reduce the BFD packet rate
  E. Reduce the BFD control plane packet rate
  A. Disable ICMP redirects on an interface

• Question 86:

  What will significantly degrade DSL performance, regardless of DSL rate or line length? Select all that apply

  A. Micro liters installed between a telephone and shared line.
  B. POTS splitters at the subscriber's end of the DSL line
  C. POTS splitters at the telco CO.
  D. None of the other alternatives apply.
  D. None of the other alternatives apply.

• Question 87:

  What is the port number of the IPsec Encapsulating Security Payload packet?

  A. UDP port 50
  B. IP protocol 51
  C. TCP port 51
  D. TCP port 50
  E. IP protocol 50
  F. UDP port51
  E. IP protocol 50

• Question 88:

  A company plans to secure its connectivity over its provider. Which method can reduce overhead and provide encryption for Layer 2 over the provider cloud?

  A. MACsec
  B. IPsec C. L2VPN with 802.1X extensions
  D. L2TPv3
  A. MACsec

• Question 89:

  In PPPoA architecture, which two methods are most commonly deployed? (Choose two)

  A. Terminating PPP sessions at the service provider
  B. PPP framing
  C. PPP multiplexing
  D. GRE tunneling
  E. L2TP tunneling
  A. Terminating PPP sessions at the service provider
  E. L2TP tunneling

• Question 90:

  

  Refer to the exhibit. The requirements is to copy traffic from switch A and switch B and to send it to a probe connected to switch D across the routed network. Which technology meets this requirement?

  A. NetFlow v5
  B. ERSPAN
  C. NetFlow v9
  D. RSPAN
  B. ERSPAN