Cisco 400-101 Online Practice Questions and Exam Preparation

Cisco 400-101 Online Questions & Answers

• Question 11:

  Which information does RA guard use to determine if an RA is allowed?

  A. a trusted binding-table database generated from ND messages
  B. information output from IPv6 snooping
  C. manually configured trust sources
  D. a trusted binding-table database generated from RS messages
  C. manually configured trust sources

• Question 12:

  Which tree statements correctly describe the encoding formats for NETCONF, RESTCONF, and gRPC? (Choose three.)

  A. gRPC uses XML encoding
  B. RESTCONF uses JSON encoding
  C. gRPC uses GPB encoding
  D. NETCONF uses JSON encoding
  E. NETCONF uses XML encoding
  F. RESTCONF uses GPB encoding
  B. RESTCONF uses JSON encoding
  C. gRPC uses GPB encoding
  E. NETCONF uses XML encoding

• Question 13:

  Which two statements about redistribution are true? (Choose two)

  A. When EIGRP routes on a CE are redistributed through a PE into BGP, the Cost Community POI is set automatically.
  B. When EIGRP traffic is redistributed into BGP, a default metric is required.
  C. When BGP traffic is redistributed into OSPF, eBGP and iBGP routes are advertised.
  D. When BGP traffic is redistributed into OSPF, the metric is set to 1 unless the metric is defined.
  E. When OSPF traffic is redistributed into BGP, internal and external routes are redistributed.
  F. iBGP routes automatically redistribute into the IGP if the routes are in the routing table.
  A. When EIGRP routes on a CE are redistributed through a PE into BGP, the Cost Community POI is set automatically.
  D. When BGP traffic is redistributed into OSPF, the metric is set to 1 unless the metric is defined.

• Question 14:

  Which two statements are true about VPLS? (Choose two.)

  A. It provides integrated mechanisms to maintain First Hop Resiliency Protocols such as HSRP, VRRP, or GLBP.
  B. It can carry a single VLAN per VPLS instance.
  C. It relies on flooding to propagate MAC address reachability information
  D. It can work over any transport that can forward IP packets.
  E. It includes automatic detection of multihoming
  B. It can carry a single VLAN per VPLS instance.
  C. It relies on flooding to propagate MAC address reachability information

• Question 15:

  Which statement describes the operation of the Generalized TTL Security Mechanism (GTSM), used by routing protocols to prevent some types of attack?

  A. An MD5 hash of the received TTL, source IP, destination IP, protocol , and shared key must match
  B. The TTL in a received packet must be a low value (typically 1-2)
  C. The TTL in a received packet must be a high value (typically 254-255)
  D. Both end systems compute an MD5 hash based on the TTL and a shared secret. If the received and local value differ, the packet is dropped
  C. The TTL in a received packet must be a high value (typically 254-255)

• Question 16:

  Refer to the exhibit.

  

  Which statement is true?

  A. R1 is using an MPLS TE tunnel for this pseudowire, because the IP path is not avialable.
  B. The default route 0.0.0.0/0 is available in the IPv4 routing table.
  C. R1 has preferred-path configured for the pseudowire.
  D. R1 routes this pseudowire over MPLS TE tunnel1 with transport label 20
  D. R1 routes this pseudowire over MPLS TE tunnel1 with transport label 20

• Question 17:

  What command can you enter to configure NBAR to recognize VNC traffic?

  A. Ipnbar custom-map VNC tcp-udp 5900 5901
  B. Ipnbar application-map VNC udp 5900 5901
  C. Ipnbar port-to-application seq 5 VNC tcp 5900 5901
  D. Ipnbar port-map VNC hex 0xAA 0x1B
  E. Ipnbar port-map VNC tcp 5900 5901
  E. Ipnbar port-map VNC tcp 5900 5901

• Question 18:

  Drag and Drop

  Drag and drop the OSPF network type on the left to the correct category of timers on the right.

  Select and Place:

  

  

• Question 19:

  If running an OSPF process without the capability vrf-lite command in a VRF, which value does the router additionally check on an OSPF Type 3 LSA?

  A. the tag
  B. the Max Age timer
  C. the prefix length
  D. the DN bit
  D. the DN bit

• Question 20:

  Which two statements are true about an EPL? (Choose two.)

  A. It is a point-to-point Ethernet connection between a pair of NNls
  B. It allows for service multiplexing.
  C. It has a high degree of transparency.
  D. The EPL service is also referred to as E-line
  C. It has a high degree of transparency.
  D. The EPL service is also referred to as E-line