Chapter 4 West

What is NOT one of the three characteristics of TCP in its role as a reliable delivery protocol?

• Connection-oriented Protocol
• Sequencing and checksums
• Framing
• Flow Control

What command will list only current connections, including IP addresses and port numbers?

• show ip stats
• netstat -n
• netstat -s
• portstat

Which statement regarding the Border Gateway Protocol (BGP) is accurate?

• BGP is limited to a single autonomous system.
• BGP is exclusively a distance-vector protocol.
• BGP utilizes TCP for communicating updates.
• BGP is a more advanced version of OSPF.

Which of the following is not a task handled by a router?

• A router forwards broadcasts over the network.
• A router can reroute traffic if the path of first choice is down but a second path is available.
• A router can interpret Layer 3 and often Layer 4 addressing.
• A router can connect dissimilar networks.

You are connected to your network's Cisco router, and need to verify the route table. What command should you enter?

• route print
• show ip route
• route -a
• show route-table

What is the purpose of the checksum TCP field?

• It specifies special options, such as the maximum segment size a network can handle.
• It allows the receiving node to determine whether the TCP segment became corrupted during transmission.
• It identifies the data segment's position in the stream of data segments being sent.
• It confirms receipt of data via a return message to the sender.

In IPv6, what field is used to indicate what sequence of packets from one source to one or multiple destinations a packet belongs to?

• traffic class
• group ID
• flow label
• traffic exchange

Routing protocols that enable routers to communicate beyond neighboring routers, allowing each router to independently map the network, are known as which type of protocols?

• interior gateway protocols
• border gateway protocols
• distance vector protocols
• link-state protocols

You have been tasked with the replacement of OSPF with EIGRP throughout your organization, which consists of a mixture of Cisco routers and routers from other vendors. What statement is accurate?

• EIGRP will increase CPU utilization on core routers.
• Increased traffic will result from the switch to EIGRP.
• EIGRP may not be available on non-Cisco routers.
• Convergence time will be increased with EIGRP.

Which command will produce statistics about each message transmitted by a host, separated according to protocol type?

• ipconfig -s
• netstat -s
• ipstat -a
• netstat -an