Cisco 640-875 Online Practice Questions and Exam Preparation

Cisco 640-875 Online Questions & Answers

• Question 191:

  What is the measurement of the Cisco IP SLA Operation ICMP Pather Jitter?

  A. Measures delay and jitter on networks utilizing UDP traffic
  B. Measures packet loss, jitter, and delay per hop in IP networks
  C. Measures round-trip delay only in UDP traffic networks
  D. Measures IP networks-only round-trip delay
  B. Measures packet loss, jitter, and delay per hop in IP networks

• Question 192:

  Which two statements are correct regarding routing protocol authentication? (Choose two.)

  A. MD5 authentication can only be established between Internal BGP peers.
  B. Authentication can be established using keychains on one peer and MD5 hashing on the other.
  C. UDP port 179 is used for BGP session authentication.
  D. MD5 passwords are never sent to a peer.
  E. Routers authenticate each routing update packet received.
  F. BGP peers can be configured with different passwords.
  D. MD5 passwords are never sent to a peer.
  E. Routers authenticate each routing update packet received.

• Question 193:

  Refer to the exhibit. The netstat command is used to troubleshoot network issues at which OSI layer?

  

  A. application
  B. network
  C. data link
  D. transport
  D. transport

• Question 194:

  In Cisco IOS XR, which three operations is Admin mode used for? (Choose three.)

  A. Secure Domain Router management
  B. Configuration-register settings
  C. Hostname configuration
  D. IOS XR software package upgrades
  E. Interface duplex settings
  F. Domain-name configuration
  A. Secure Domain Router management
  B. Configuration-register settings
  D. IOS XR software package upgrades

• Question 195:

  Given a ring topology, which loop prevention mechanism provides the fastest reconvergence time after a link failure?

  A. Rapid Per-VLAN Spanning Tree Protocol
  B. Resilient Ethernet Protocol
  C. Multiple Spanning Tree Protocol
  D. Spanning Tree Protocol
  B. Resilient Ethernet Protocol

• Question 196:

  Refer to the exhibit. Users in VLAN 10 report that their computers have 169.254.0.0/16 IP addresses. On the DHCP server, you discover that the 192.168.10.0/24 IP address pool and the 192.168.20.0/24 IP address pool are configured. What can you do to ensure that the users receive valid IP addresses from the DHCP server?

  

  A. On FastEthernet0/0, configure ip helper-address 192.168.20.10
  B. Globally configure ip dhcp-server 192.168.20.10. On FastEthernet0/0 and FastEthernet0/1, configure ip dhcp-relay enable
  C. Globally configure ip dhcp-server 192.168.20.10. On FastEthernet0/0, configure ip dhcp-relay enable
  D. On Fast-Ethernet0/0, configure ip dhcp-relay 192.168.20.10.
  A. On FastEthernet0/0, configure ip helper-address 192.168.20.10

• Question 197:

  According to RFC 2080, which routing protocol is compatible with IPv6?

  A. RIPv2
  B. OSPF
  C. RIP-NG
  D. EIGRPv6
  E. OSPFv2
  F. EIGRP-NG
  C. RIP-NG

• Question 198:

  Which IPv6 feature replaced and enhanced the IPv4 ARP functions?

  A. ARPv6
  B. DHCPv6
  C. Neighbor discovery protocol in ICMPv6
  D. Router solicitation and router advertisement
  E. Auto configuration
  C. Neighbor discovery protocol in ICMPv6

• Question 199:

  A technician connects a Cisco ASR 9001 Router with a 40 Gigabit Ethernet modular port adapter to an older model Cisco switch through a transceiver. The older Cisco switch has interfaces that only support up to 100-Mb half-duplex. What should you tell the technician about this configuration?

  A. The devices are unable to communicate.
  B. On the older model Cisco switch, set the speed to "auto," so that the devices can communicate.
  C. On the Cisco ASR 9001 Router, set the duplex and the speed to "auto," so that the devices can communicate.
  D. Set the transceiver to half/full duplex mode so that the devices can communicate.
  A. The devices are unable to communicate.

• Question 200:

  Refer to the exhibit.

  

  You want to accomplish the following:

  Change the active flow timeout to three minutes.

  Change the inactive flow to one minute.

  Which two commands should you run? (Choose two.)

  A. (config)#ip flow-cache timeout active 3
  B. (config)#ip flow-cache timeout inactive 60
  C. (config)#ip flow-cache timeout active 180
  D. (config)#ip flow-cache timeout inactive 1
  A. (config)#ip flow-cache timeout active 3
  B. (config)#ip flow-cache timeout inactive 60