ICND1

## About

The Interconnecting Cisco Networking Devices Part 1 (ICND1) exam is an entry level exam created by Cisco to prove basic understanding of entry level networking. The current version of the exam is the 100-105.

Those who complete the ICND1 exam will earn the CCENT certification. The completion of both the ICND1 and ICND2 will earn the CCNA certification.

## Versions

### 100-105 (ICND1 v3)

**Topics Added**

* High level knowledge of the impact and interactions of infrastructure components in an Enterprise network, specifically:
	+ Firewalls
	+ Access Points
	+ Wireless Controllers

* Awareness of the Collapsed Core architecture compared to traditional three-tier architectures. This option collapses the Distribution and Core into a single tier with the Access as the second tier.
* Configure and verify IPv6 Stateless Address Auto Configuration (SLAAC).
* Added Anycast to the list of IPv6 addressing types.
* Knowledge of Link Layer Discovery Protocol (LLDP). An L2 discovery protocol used in addition to Cisco Discovery Protocol.
* RIPv2 for IPv4 as the primary focus for understanding of how routing protocols work.
* Added requirements to understand DNS and DHCP related connectivity issues.
* Understanding of Syslog message logging for device monitoring.
* Skills and knowledge of device management related to backup and restoring device configurations, IOS feature licensing, and configuring time zones.

**Topics Removed**

* OSPF (single area) and other OSPF topics were moved into ICND2 since RIP is used to introduce CCENT candidates to IP routing protocols.
* Dual Stack was removed since there are many different IPv4 to IPv6 transition technologies being used.
* Cisco Express Forwarding (CEF) has been removed.

### 100-101 (ICND1 v2)

**Topics Added**

* Implementing VLSM
* Scaling the Network with NAT and PAT
* Managing Traffic Using ACLs
* Implementing VLANs and Trunks
* Routing Between VLANs
* Implementing single area OSPF
* Introduction to IPv6
* Configuring IPv6 Routing

**Topics Removed**

* Understanding the Challenges of Shared LANs
* Solving Network Challenges with Switched LAN Technologies
* Configuring Serial Encapsulation
* Enabling RIP

## Topics

### Network Fundementals

1. Compare and contrast OSI and TCP/IP Models
2. Compare and contrast TCP and UDP protocols
3. Describe the impact of infrastructure components in an enterprise network
	* Firewalls
	* Access points
	* Wireless controllers
4. Compare and contrast collapsed core and three-tier architectures
5. Compare and contrast network topologies
	* Star
	* Mesh
	* Hybrid
6. Select the appropriate cabling type based on implementation requirements
7. Apply troubleshooting methodologies to resolve problems
	* Perform fault isolation and document
	* Resolve or escalate
	* Verify and monitor resolution
8. Configure, verify, and troubleshoot IPv4 addressing and subnetting
9. Compare and contrast IPv4 address types
	* Unicast
	* Broadcast
	* Multicast
10. Describe the need for private IPv4 addressing
11. Identify the appropriate IPv6 addressing scheme to satisfy addressing requirements in a LAN/WAN environment
12. Configure, verify, and troubleshoot IPv6 addressing
13. Configure and verify IPv6 Stateless Address Auto Configuration
14. Compare and contrast IPv6 address types
	* Global unicast
	* Unique local
	* Link local
	* Multicast
	* Modified EUI 64
	* Autoconfiguration
	* Anycast

### LAN Switching Fundamentals

1. Describe and verify switching concepts
	* MAC learning and aging
	* Frame switching
	* Frame flooding
	* MAC address table
2. Interpret Ethernet frame format
3. Troubleshoot interface and cable issues (collisions, errors, duplex, speed)
4. Configure, verify, and troubleshoot VLANs (normal range) spanning multiple switches
	* Access ports (data and voice)
	* Default VLAN
5. Configure, verify, and troubleshoot interswitch connectivity
	* Trunk ports
	* 802.1Q
	* Native VLAN
	* Configure and verify Layer 2 protocols
	* Cisco Discovery Protocol
	* LLDP
6. Configure, verify, and troubleshoot port security
	* Static
	* Dynamic
	* Sticky
	* Max MAC addresses
	* Violation actions
	* Err-disable recovery

### Routing Fundamentals

1. Describe the routing concepts
	* Packet handling along the path through a network
	* Forwarding decision based on route lookup
	* Frame rewrite
2. Interpret the components of routing table
	* Prefix
	* Network mask
	* Next hop
	* Routing protocol code
	* Administrative distance
	* Metric
	* Gateway of last resort
3. Describe how a routing table is populated by different routing information sources
	* Admin distance
4. Configure, verify, and troubleshoot inter-VLAN routing
5. Router on a stick
6. Compare and contrast static routing and dynamic routing
7. Configure, verify, and troubleshoot IPv4 and IPv6 static routing
	* Default route
	* Network route
	* Host route
	* Floating static
8. Configure, verify, and troubleshoot RIPv2 for IPv4 (excluding authentication, filtering, manual summarization, redistribution)

### Infrastructure Services

1. Describe DNS lookup operation
2. Troubleshoot client connectivity issues involving DNS
3. Configure and verify DHCP on a router (excluding static reservations)
	* Server
	* Relay
	* Client
4. TFTP, DNS, and gateway options
5. Troubleshoot client- and router-based DHCP connectivity issues
6. Configure and verify NTP operating in client/server mode
7. Configure, verify, and troubleshoot IPv4 standard numbered and named access list for routed interfaces
8. Configure, verify, and troubleshoot inside source NAT
	* Static
	* Pool
	* PAT

### Infrastructure Maintenance

1. Configure and verify device-monitoring using syslog
2. Configure and verify device management
	* Backup and restore device configuration
	* Using Cisco Discovery Protocol and LLDP for device discovery
	* Licensing
	* Logging
	* Timezone
	* Loopback
3. Configure and verify initial device configuration
4. Configure, verify, and troubleshoot basic device hardening
	* Local authentication
	* Secure password
	* Access to device
		+ Source address
		+ Telnet/SSH
	* Login banner
5. Perform device maintenance
	* Cisco IOS upgrades and recovery (SCP, FTP, TFTP, and MD5 verify)
	* Password recovery and configuration register
	* File system management
6. Use Cisco IOS tools to troubleshoot and resolve problems
	* Ping and traceroute with extended option
	* Terminal monitor
	* Log events

###

## References

1. ↑ 1.0 1.1 https://learningnetwork.cisco.com/blogs/community\_cafe/2016/05/17/ccna-refresh
2. ↑ 2.0 2.1 http://www.ciscopress.com/articles/article.asp?p=2102827