Free Cisco 640-875 Exam Dumps Questions & Answers

Which two statements about classful or classless routing protocol operations are true? (Choose two.)

• A.  Examples of classless routing protocols include RIPv1, EIGRP, OSPF, andIS-IS.
• B.  Variable-length subnet masks are supported when using classful routing protocols.
• C.  Classful routing protocols do not support discontiguous subnets.
• D.  Classful routing protocols do not send subnet mask information with theirrouting updates.

DOCSIS architecture includes which two primary components? (Choose two.)

• A.  UMTS
• B.  a cable modem
• C.  a DSL modem
• D.  an IP PBX
• E.  CMTS

Which mode prevents the counter track from being incremented when a security violation occurs?

• A.  protect
• B.  shutdown
• C.  restrict
• D.  guard

Which feature is used to protect the control plane of the router?

• A.  Port security
• B.  uRPF
• C.  SSL
• D.  SSH
• E.  VRF
• F.  Routing protocol authentication

Which two statements about IPv4 DHCP operations are true? (Choose two.)

• A.  If the client and server are on different subnets, DHCPDISCOVER and DHCPREQUEST messages are sent via UDP broadcasts, but DHCPOFFER and DHCPACK messages are unicast.
• B.  A client can receive DHCPOFFER from multiple servers and it can accept all the offers by broadcasting the DHCPREQUEST message to all the servers.
• C.  The client broadcasts a DHCPDISCOVER message on UDP port 68 with its own MAC address to discover available DHCP servers.
• D.  A DHCP relay is required if the DHCP clients and the servers are on the same subnet.
• E.  If the DHCP clients and servers are on the same subnet, DHCP uses UDP broadcasts to communicate between the clients and servers.
• F.  The DHCP server that receives a DHCPDISCOVER message may respond with a DHCPOFFER message on UDP port 67.