CCNP 642-831
CIT（Cisco互联网故障诊断）
考试时间：75分钟
及格分数：776分
CCNP 642-831 CIT考点
Connectionless Models
Demonstrate knowledge of troubleshooting targets for
connection-oriented and connectionless protocols
Troubleshooting
Demonstrate knowledge of common data link layer characteristics
and key troubleshooting targets likely to be found in campus
network
Describe the types and purposes of tools commonly used for network
troubleshooting processes
Describe and use the Cisco information resources (especially those
in the CCO World Wide Web site) that can assist with
troubleshooting processes
List the preferred methods for escalation of troubleshooting
issues to Cisco's service and support programs
Demonstrate knowledge of connection sequences and key
troubleshooting targets within TCP/IP, Novell IPX, and AppleTalk
Use troubleshooting tools and minimize their impact on a Cisco
router's switching type and data flow
Identify and use Cisco IOSTM software commands and debug utilities
to filter, capture, and display protocol traffic flows
Describe an efficient problem-solving method when troubleshooting
and documenting internetwork problems
Use proven problem isolation techniques to list the symptoms of
common TCP/IP problems
Apply diagnostic tools to solve network problems that include
systems running TCP/IP with Windows NT/95 clients and servers
Use proven problem isolation techniques to list the symptoms of
common Novell IPX problems on router networks
Use proven problem isolation techniques to list the symptoms of
common AppleTalk problems on router networks
Apply diagnostic VLAN tools to switched and routed VLAN
configuration problems
Use Cisco IOS router troubleshooting commands with Catalyst
switch troubleshooting commands
Use proven problem isolation techniques to list the symptoms of
Catalyst 5000 and VLAN problems on switched Ethernet Networks
Apply diagnostic tools to trouble tickets and solve classroom
network Catalyst 5000 problems that simulate real-life networking
malfunctions
Use Cisco IOS commands and problem isolation techniques to
identify the symptoms of common ISDN BRI problems
Apply diagnostic tools to trouble tickets and solve ISDN BRI
problems that simulate real-life WAN malfunctions
Use Cisco IOS commands and problem isolation techniques to
identify the symptoms of common WAN and Frame Relay problems
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