CCNA-Module 1-4
OBJECTIVES
1) EXPLAIN THE BASIC CHARACTERISTICS AND COMPONENTS OF A NETWORK
- Explain how multiple networks are used in everyday life
- Explain the topologies and devices used in a small to medium-sized business network
- Explain the basic characteristics of a network that supports communication in a small to medium-sized business
- Explain trends in networking that will affect the use of networks in small to medium-sized businesses
2) CONFIGURE A NETWORK OPERATING SYSTEM
- Explain the purpose of Cisco IOS
- Explain how to access and navigate Cisco IOS to configure network devices
- Describe the command structure of Cisco IOS software
- Configure hostnames on a Cisco IOS device using the CLI
- Use Cisco IOS commands to limit access to device configurations
- Use Cisco IOS commands to save the running configuration
- Explain how devices communicate across network media
- Configure a host device with an IP address
- Verify connectivity between two end devices
3) EXPLAIN THE FUNCTION OF NETWORK PROTOCOLS
- Explain how rules are used to facilitate communication
- Explain the role of protocols and standards organizations in facilitating interoperability in network communications
- Explain how devices on a LAN access resources in a small to medium-sized business network
4) EXPLAIN THE FUNCTION OF ACCESS LAYER PROTOCOLS AND CONFIGURE A SIMPLE NETWORK
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- Explain how physical layer protocols and services support communications across data networks
- Build a simple network using the appropriate
- Explain the role of the data link layer in supporting communications across data networks
- Compare media access control techniques and logical topologies used in networks
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DESCRIBE THE OPERATION OF ETHERNET TECHNOLOGY AND CONFIGURE A SWITCH
- Describe the operation of the Ethernet sublayers
- Identify the major fields of the Ethernet frame
- Describe the purpose and characteristics of the Ethernet MAC address
- Describe the purpose of ARP
- Explain how ARP requests impact network and host performance
- Explain basic switching concepts
- Compare fixed configuration and modular switches
- Configure a Layer 3 switch
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EXPLAIN THE FUNCTION OF NETWORK LAYER PROTOCOLS
- Explain how network layer protocols and services support communications across data networks
- Explain how routers enable end-to-end connectivity in a small to medium-sized business network
- Determine the appropriate device to route traffic in a small to medium-sized business network
- Configure a router with basic configurations
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EXPLAIN TCP AND UDP PROTOCOL FUNCTIONS
- Describe the purpose of the transport layer in managing the transportation of data in end-to-end communication
- Describe characteristics of the TCP and UDP protocols, including port numbers and their uses
- Explain how TCP session establishment and termination processes facilitate reliable communication
- Explain how TCP protocol data units are transmitted and acknowledged to guarantee delivery
- Explain the UDP client processes to establish communication with a server
- Determine whether high-reliability TCP transmissions, or non-guaranteed UDP transmissions, are best suited for common applications
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DESCRIBE IPv4 AND IPv6 ADDRESSING
- Describe the structure of an IPv4 address
- Describe the purpose of the subnet mask
- Compare the characteristics and uses of the unicast, broadcast and multicast IPv4 addresses
- Compare the use of public address space and private address space
- Explain the need for IPv6 addressing
- Describe the representation of an IPv6 address
- Describe types of IPv6 network addresses
- Configure global unicast addresses
- Describe multicast addresses
- Describe the role of ICMP in an IP (include IPv4 and IPv6)
- Use ping and traceroute utilities to test network connectivity
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EXPLAIN HOW TO SUBNET IPv4 AND IPv6 NETWORKS
- Explain why routing is necessary for hosts on different networks to communicate
- Describe IP as a communication protocol used to identify a single device on a network
- Given a network and a subnet mask, calculate the number of host addresses available
- Calculate the necessary subnet mask in order to accommodate the requirements of a network
- Describe the benefits of variable length subnet masking (vLSM)
- Explain how IPv6 address assignments are implemented in a business network
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EXPLAIN THE FUNCTION OF APPLICATION LAYER PROTOCOLS
- Explain how the functions of the application layer, session layer, and presentation layer work together to provide network services to end user applications
- Describe how common application layer protocols interact with end user applications
- Describe, at a high level, common application layer protocols that provide Internet services to end-users, including WWW services and email
- Describe application layer protocols that provide IP addressing services, including DNS and DHCP
- Describe the features and operation of well-known application layer protocols that allow for file sharing services, including FTP, File Sharing Services, SMB protocol
- Explain how data is moved across the network, from opening an application, to receiving data
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BUILD A SMALL NETWORK INCORPORATING BASIC SECURITY MEASURES
- Identify the devices and protocols used in a small network
- Explain how a small network serves as the basis of larger networks
- Explain the need for basic security measures on network devices
- Identify security vulnerabilities and general mitigation techniques
- Configure network devices with device hardening features to mitigate security threats
- Use the output of ping and tracert commands to establish relative network performance