OBJ 5.5

Question 1

Considerations

Answer 1

Device configuration review
- Routing tables
- Interface status
- VLAN assignment
- Network performance baselines

Question 2

Common issues

Answer 2

• Collisions
• Broadcast storm
• Duplicate MAC address
• Duplicate IP address
• Multicast flooding
• Asymmetrical routing
• Switching loops
• Routing loops
• Rogue DHCP server
• DHCP scope exhaustion
• IP setting issues
• Incorrect gateway
• Incorrect subnet mask
• Incorrect IP address
• Incorrect DNS
• Missing route
• Low optical link budget
• Certificate issues
• Hardware failure
• Host-based/network-
  based firewall settings
• Blocked services, ports, or addresses
• Incorrect VLAN
• DNS issues
• NTP issues
• BYOD challenges
• Licensed feature issues
• Network performance issues