Online Access Free 640-861 Practice Test

The Cisco network consists of two locations that are connected via satellite point-to-point link. The users experience low response time and very low error rates when employing data communications over this particular link.
Which statement describes the effect of flow control using window size for the highest end-to-end throughput?

• A.Insufficient information to determine the effect window size
• B.A large window size reduces the number of acknowledgments
• C.A small window size will keep the number of retransmissions to a minimum
• D.A small window size will enhance performance
• E.none of the above

Cisco .com has a campus network with five buildings. Building 1 contains all the Cisco .com servers and the central core of the network. A Catalyst 6500 multilayer switch connects to each of the other buildings through Gigabit Ethernet links over multimode fiber optic cable. Each building has a single IP subnet with
300 to 500 devices in each.
A network technician at Cisco .com calls you and reports some serious network performance problems. Periodically, response times become very slow for several minutes at a time and then speeds up. The problem has been sporadic and very difficult to troubleshoot. Cisco .com uses Microsoft Windows 2000 and Sun Solaris servers and Windows 2000 workstations with default configurations.
What change in network design would you recommend to Cisco .com to improve performance?

• A.Install dual Gigabit uplinks to the buildings
• B.Use single mode fiber for the gigabit uplinks
• C.Put a layer 3 switch in each building
• D.Implement multiple VLANs in each of the buildings

For which of the following devices would static DNS entry be a necessity?

• A.None of the above
• B.Border router
• C.E-mail server
• D.DHCP server
• E.Default gateway

At what stage are SNMP Trap messages sent?

• A.When agents have events to report to an NMS.
• B.When NMS need to initialize agents.
• C.When an NMS wants a proxy station to take over agent monitoring.
• D.When an NMS wants agents to begin recording events.
• E.When an NMS requests events from the managed devices.

Which of the following link-state routing protocols is capable of supporting IP and CLNP protocols and is used for large routed internetwork?

• A.IS-IS E.
  BGP
• B.EIGRP
• C.OSPF
• D.RIP v2