Online Cisco Certification Exam–Just4exam

Exam Description    Exam Topics    Recommended Training    Additional Resources

 Exam Description 

The QOS exam is one of the qualifying exams for the Cisco Certified Internetwork Professional, Cisco Certified Voice Professional, Cisco IP Telephony Design Specialist, Cisco IP Telephony Express Specialist, Cisco IP Telephony Operations Specialist, and Cisco IP Telephony Support Specialist certifications. The QOS 642-642 exam will test materials covered under the Implementing Cisco Quality of Service QOS v2.1 course. The exam will certify that the successful candidate has knowledge and skills necessary to configure and troubleshoot Cisco IOS routers running Quality of Service protocols in Service Provider and Enterprise environments. The exam covers topics on IP QOS, classification and marking Mechanisms, queuing mechanisms, traffic shaping and policing mechanisms, congestion avoidance mechanisms, link efficiency mechanisms, modular QOS command line interface, and QOS Best Practices.

 Exam Topics 

The following information provides general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam.

Implement and verify WAN links.

l  Describe different methods for connecting to a WAN

l  Configure and verify a basic WAN serial connection

l  Configure and verify Frame Relay on Cisco routers

l  Troubleshoot WAN implementation issues

l  Describe VPN technology (including: importance, benefits, role, impact, components)

l  Configure and verify a PPP connection between Cisco routers

Describe how a network works.

l  Differentiate between LAN/WAN operation and features

Implement an IP addressing scheme and IP Services to meet network requirements in a medium-size Enterprise branch office network.

l  Describe the technological requirements for running IPv6 in conjunction with IPv4 (including: protocols, dual stack, tunneling, etc).

l  Describe IPv6 addresses

Identify security threats to a network and describe general methods to mitigate those threats.

l  Describe today’s increasing network security threats and explain the need to implement a comprehensive security policy to mitigate the threats

l  Explain general methods to mitigate common security threats to network devices, hosts, and applications

l  Describe the functions of common security appliances and applications

l  Describe security recommended practices including initial steps to secure network devices 

Configure, verify, and troubleshoot basic router operation and routing on Cisco devices.

l  Implement basic router security 

Implement, verify, and troubleshoot NAT and ACLs in a medium-size Enterprise branch office network.

l  Describe the purpose and types of ACLs

l  Configure and apply ACLs based on network filtering requirements.(including: CLI/SDM)

l  Configure and apply an ACLs to limit telnet and SSH access to the router using (including: SDM/CLI)

l  Verify and monitor ACLs in a network environment

l  Troubleshoot ACL issues

Describe how a network works.

l  Describe the impact of applications (Voice Over IP and Video Over IP) on a network

Configure, verify and troubleshoot a switch with VLANs and interswitch communications.

l  Verify network status and switch operation using basic utilities (including: ping, traceroute, telnet, SSH, arp, ipconfig), SHOW & DEBUG commands

l  Identify, prescribe, and resolve common switched network media issues, configuration issues, auto negotiation, and switch hardware failures

l  Describe enhanced switching technologies (including: VTP, RSTP, VLAN, PVSTP, 802.1q)

l  Describe how VLANs create logically separate networks and the need for routing between them

l  Configure, verify, and troubleshoot VLANs

l  Configure, verify, and troubleshoot trunking on Cisco switches

l  Configure, verify, and troubleshoot interVLAN routing

l  Configure, verify, and troubleshoot VTP

l  Configure, verify, and troubleshoot RSTP operation

l  Interpret the output of various show and debug commands to verify the operational status of a Cisco switched network.

l  Implement basic switch security (including: port security, trunk access, management vlan other than vlan1, etc.)

Configure, verify and troubleshoot a switch with VLANs and interswitch communications.

l  Select the appropriate media, cables, ports, and connectors to connect switches to other network devices and hosts

l  Explain the technology and media access control method for Ethernet networks

l  Explain network segmentation and basic traffic management concepts

l  Explain basic switching concepts and the operation of Cisco switches

l  Perform and verify initial switch configuration tasks including remote access management

l  Verify network status and switch operation using basic utilities (including: ping, traceroute, telnet, SSH, arp, ipconfig), SHOW & DEBUG commands

l      Identify, prescribe, and resolve common switched network media issues, configuration issues, auto negotiation, and switch hardware failures

Configure, verify, and troubleshoot basic router operation and routing on Cisco devices.

l  Access and utilize the router to set basic parameters.(including: CLI/SDM)

l  Connect, configure, and verify operation status of a device interface

l  Verify device configuration and network connectivity using ping, traceroute, telnet, SSH or other utilities

l  Perform and verify routing configuration tasks for a static or default route given specific routing requirements

l  Compare and contrast methods of routing and routing protocols

l  Configure, verify, and troubleshoot OSPF

l  Configure, verify, and troubleshoot EIGRP

l  Verify network connectivity (including: using ping, traceroute, and telnet or SSH)

l  Troubleshoot routing issues

l  Verify router hardware and software operation using SHOW & DEBUG commands.

l  Implement basic router security

Describe how a network works.

l  Determine the path between two hosts across a network

Configure, verify, and troubleshoot basic router operation and routing on Cisco devices.

l  Describe basic routing concepts (including: packet forwarding, router lookup process)

l  Configure, verify, and troubleshoot RIPv2

l  Access and utilize the router to set basic parameters.(including: CLI/SDM)

l  Connect, configure, and verify operation status of a device interface

l  Verify device configuration and network connectivity using ping, traceroute, telnet, SSH or other utilities

l  Perform and verify routing configuration tasks for a static or default route given specific routing requirements

l  Compare and contrast methods of routing and routing protocols

l  Configure, verify, and troubleshoot OSPF

l  Configure, verify, and troubleshoot EIGRP

l  Verify network connectivity (including: using ping, traceroute, and telnet or SSH)

l  Troubleshoot routing issues

l  Verify router hardware and software operation using SHOW & DEBUG commands.

l  Implement basic router security

Configure, verify, and troubleshoot basic router operation and routing on Cisco devices

l  Manage IOS configuration files. (including: save, edit, upgrade, restore)

l  Manage Cisco IOS

l  Verify network connectivity (including: using ping, traceroute, and telnet or SSH)

Implement an IP addressing scheme and IP Services to meet network requirements in a medium-size Enterprise branch office network.

l  Configure, verify and troubleshoot DHCP and DNS operation on a router.(including: CLI/SDM)

Configure, verify, and troubleshoot basic router operation and routing on Cisco devices.

l  Describe the operation of Cisco routers (including: router bootup process, POST, router components)

l  Access and utilize the router to set basic parameters.(including: CLI/SDM)

l  Connect, configure, and verify operation status of a device interface

l  Verify device configuration and network connectivity using ping, traceroute, telnet, SSH or other utilities

l  Verify network connectivity (including: using ping, traceroute, and telnet or SSH)

l  Troubleshoot routing issues

l  Verify router hardware and software operation using SHOW & DEBUG commands.

Implement an IP addressing scheme and IP Service to meet network requirements in a medium-size Enterprise branch office network.

l  Describe the operation and benefits of using private and public IP addressing

l  Implement static and dynamic addressing services for hosts in a LAN environment

l  Calculate and apply an addressing scheme including VLSM IP addressing design to a network

l  Determine the appropriate classless addressing scheme using VLSM and summarization to satisfy addressing requirements in a LAN/WAN environment

l  Identify and correct common problems associated with IP addressing and host configurations

Describe how a network works.

l  Interpret network diagrams