Cisco 351-001 Online Practice Questions and Exam Preparation

Cisco 351-001 Online Questions & Answers

• Question 81:

  Refer to the exhibit.

  

  Which two possible network conditions can you infer from this configuration? (Choose two.)

  A. The authentication parameters on R1 and R2 are mismatched.
  B. R1 is using the default NTP source configuration.
  C. R1 and R2 have established an NTP session.
  D. R2 is configured as the NTP master with a stratum of 7.
  A. The authentication parameters on R1 and R2 are mismatched.
  B. R1 is using the default NTP source configuration.

  ---

  Answer A. The NTP associations are not synced, it is only listed as a candidate because it was configured. Routing is not the issue, so it must be mismatched authentication parameters.

  Answer B. NTP sets the source IP address for all NTP packets based on the address of the interface through which the NTP packets are sent. You can configure NTP to use a specific source IP address.

• Question 82:

  DRAG DROP

  Drag and drop the BGP attribute on the left to the correct category on the right.

  Select and Place:

  

  

• Question 83:

  What two values are required to implement an EIGRP named configuration? (Choose two.)

  A. virtual-instance-name
  B. address-family
  C. router-id
  D. subnet-mask
  E. process-id
  A. virtual-instance-name
  B. address-family

• Question 84:

  Which enhancement does IGMP version 3 offer over IGMP version 2?

  A. support for Source Specific Multicast
  B. a mechanism to decrease leave latency
  C. authentication of multicast streams
  D. backward compatibility with IGMP version 1
  A. support for Source Specific Multicast

• Question 85:

  Which statement about a P router in a Layer 3 MPLS VPN is true?

  A. It is unaware of VPN routes.
  B. It connects to customer edge routers.
  C. It participates in MPLS VPN routing.
  D. It uses the running IGP to share VPN routes.
  A. It is unaware of VPN routes.

• Question 86:

  You are backing up a server with a 1 Gbps link and a latency of 2 ms. Which two statements about the backup are true? (Choose two.)

  A. The bandwidth delay product is 2 Mb.
  B. The default TCP send window size is the limiting factor.
  C. The default TCP receive window size is the limiting factor.
  D. The bandwidth delay product is 500 Mb.
  E. The bandwidth delay product is 50 Mb.
  A. The bandwidth delay product is 2 Mb.
  C. The default TCP receive window size is the limiting factor.

  ---

  1 Gbps is the same as 1000 Mbps, and 1000Mb x .0002 = 2 Mbps. With TCP based data transfers, the receive window is always the limiting factor, as the sender is generally able to send traffic at line rate, but then must wait for the acknowledgements to send more data.

• Question 87:

  Which additional feature must be enabled on a switch to allow PIM snooping to function correctly?

  A. IGMP snooping
  B. port security
  C. storm control
  D. dynamic ARP inspection
  A. IGMP snooping

• Question 88:

  Refer to the exhibit.

  

  Which BGP feature allows R1 to send R2 a list of prefixes that R2 is prevented from advertising to R1?

  A. route refresh
  B. Prefix-Based Outbound Route Filtering
  C. distribute lists
  D. prefix lists
  B. Prefix-Based Outbound Route Filtering

• Question 89:

  Which two statements about device access control are true? (Choose two.)

  A. The AUX port is displayed as type tty in the output of the show line command.
  B. VTY lines are associated with physical interfaces on a network device.
  C. MPP restricts device-management access to interfaces that are configured under the control plane host configuration.
  D. The enable password command sets an MD5 one-way encrypted password.
  E. The console port supports hardware flow control
  C. MPP restricts device-management access to interfaces that are configured under the control plane host configuration.
  E. The console port supports hardware flow control

• Question 90:

  Which two statements about BPDU guard are true? (Choose two.)

  A. The global configuration command spanning-tree portfast bpduguard default shuts down interfaces that are in the PortFast-operational state when a BPDU is received on that port.
  B. The interface configuration command spanning-tree portfast bpduguard enable shuts down only interfaces with PortFast enabled when a BPDU is received.
  C. BPDU guard can be used to prevent an access port from participating in the spanning tree in the service provider environment.
  D. BPDU guard can be used to protect the root port.
  E. BPDU guard can be used to prevent an invalid BPDU from propagating throughout the network.
  A. The global configuration command spanning-tree portfast bpduguard default shuts down interfaces that are in the PortFast-operational state when a BPDU is received on that port.
  C. BPDU guard can be used to prevent an access port from participating in the spanning tree in the service provider environment.