Cisco 400-201 Online Practice Questions and Exam Preparation

Cisco 400-201 Online Questions & Answers

• Question 431:

  

  Refer to the exhibit. The NOC engineer noticed that the R2 router system clock is not updated and synchronized to the NTP server that is configured on the R10 router. What is the issue?

  A. The maximum number of peers and client associations is exceeded
  B. The access list NTP_Clients is missing
  C. The PE2 router should be configured as an NTP peer instead of as a client
  D. The access group is misconfigured
  E. The authentication key is mismatched
  E. The authentication key is mismatched

• Question 432:

  Which of the following comparison of Control Plane Policing (CoPP) with Receive ACL (RACL) is correct? (Choose two.)

  A. CoPP protects against IP spoofing, RACL protects against DoS attacks.
  B. CoPP can not use named access lists, RACL can use named access lists.
  C. CoPP applies to a dedicated control plane interface, RACL applies to all interfaces.
  D. CoPP needs a AAA server, RACL does not need a AAA server.
  E. CoPP supports rate limits, RACL does not support rate limits.
  C. CoPP applies to a dedicated control plane interface, RACL applies to all interfaces.
  E. CoPP supports rate limits, RACL does not support rate limits.

• Question 433:

  What is the minimum hardware configuration of the multishelf Cisco CRS-1 system?

  A. One route processor (RP) card and one modular services card (MSC)
  B. One distributed route processor (DRP) and one S13 fabric card (SFC)
  C. One line card chassis (LCC) and one fabric card chassis (FCC)
  D. One route processor (RP) and one fabric card chassis (FCC)
  E. One line card chassis (LCC) and one S13 fabric card (SFC)
  C. One line card chassis (LCC) and one fabric card chassis (FCC)

• Question 434:

  In optical transmission systems, chirped lasers are used for the purpose of:

  A. Turning the laser to a specific ITU channel
  B. Keeping the signal wavelength "locked" to a specific technology
  C. Suppressing FWM and SBS non-linear effects
  D. None ofthe above
  D. None ofthe above

• Question 435:

  Refer to the exhibit. The NOC team received multiple reports about poor quality of the VoIP traffic. An engineer notices that all VoIP traffic with poor quality uses Core links with QoS implemented. Which are the two reasons for this issue? (Choose two)

  A. A DoS attack on the core routers has caused high CPU utilization on the line cards that hosts the 10 Gigabit Ethernet port.
  B. The VoIP traffic exceeding 1 GBPS is dropped by the policer
  C. The Core links are congested, which causes stavation of VoIP traffic
  D. The Bandwidth allocated is higher than 100 percent
  E. The VoiP traffic on the core links is MPLS-labeled and it is not subject to QoS
  A. A DoS attack on the core routers has caused high CPU utilization on the line cards that hosts the 10 Gigabit Ethernet port.
  B. The VoIP traffic exceeding 1 GBPS is dropped by the policer

• Question 436:

  Refer to the exhibit.

  

  R3 is not able to install the R1 loopback address into its BGP routing table. What should be configured to install that route?

  A. Configure R2 as a route reflector.
  B. Enable EBGP multihop on R2.
  C. Change the origin attribute to IGP on R3.
  D. Configure the next-hop-self command on R2.
  E. Configure the next-hop-unchanged command on R2.
  F. Add a static route to reach 10.10.23.2 on R3.
  D. Configure the next-hop-self command on R2.

• Question 437:

  What protocol does an IP phone use to learn the voice VLAN ID it should use for voice traffic?

  A. VTP
  B. 802.1q
  C. CDP
  D. Skinny Station Protocol
  C. CDP

• Question 438:

  BCP (Best Common Practices) 38/RFC 2827 Ingress and Egress Packet Filtering would help mitigate what classification of attack?

  A. Denial of service attack
  B. Sniffing attack
  C. Spoofing attack
  D. Reconnaisance attack
  E. Port Scan attack
  C. Spoofing attack

• Question 439:

  Which statement about provider-independent and provider-assigned address blocks is true?

  A. There is no difference.
  B. PI space is not globally routable and can be used as private addressing.
  C. PA space is globally routable and can be obtained from IANA by all organizations.
  D. PA space is assigned by the ISP and PI space is assigned by the regional registry. Both are globally routable.
  E. PI and PA blocks are both assigned by the regional registry to all organizations.
  D. PA space is assigned by the ISP and PI space is assigned by the regional registry. Both are globally routable.

• Question 440:

  In which way does the DS-Lite IPv6 transitioning mechanism differ from IPv6 Dual-Stack?

  A. DS-Lite is a combination of tunnel and translation technologies.
  B. DS-Lite is a transition technology that gives full IPv6 connectivity for IPv6 capable hosts that are on the IPv4 Internet but have no native connection to an IPv6 network.
  C. DS-Lite is an automatic tunnel where the tunnel destination is determined by the IPv4 address extracted from the IPv6 address that starts with the prefix 2002::/16.
  D. DS-Lite is a stateless tunneling mechanism with a lightweight and secure manner without requiring upgrades to existing IPv4 access network infrastructure.
  A. DS-Lite is a combination of tunnel and translation technologies.