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CCNA Security, Automation, and Protocols Flashcards

AcronymDefinition
Protocol that prevents switching loops?Spanning Tree Protocol (STP)
Default administrative distance of OSPF?110
Default administrative distance of EIGRP?90
Protocol used for securing communication between devices?IPSec
Command to generate cryptographic keys for SSH?crypto key generate rsa
Default port for SNMP?Port 161
Protocol used to synchronize device clocks?NTP (Network Time Protocol)
Command to enable HTTPS access to a device?ip http secure-server
Primary purpose of 802.1X?Port-based access control
Protocol used for network automation?RESTCONF or NETCONF
What does AAA stand for in network security?Authentication, Authorization, Accounting
Protocol that encrypts web traffic?HTTPS
Role of TACACS+ in a network?Centralized authentication and authorization
Key difference between RADIUS and TACACS+?RADIUS combines authentication and authorization; TACACS+ separates them
Purpose of PortFast in STP?Allows a port to bypass listening/learning states
Command to enable BPDU Guard on an interface?spanning-tree bpduguard enable
What is the primary purpose of EIGRP?Internal gateway routing
Protocol that replaces Telnet for secure remote management?SSH
Primary difference between IPv4 and IPv6 addressing?IPv6 uses 128-bit addresses; IPv4 uses 32-bit addresses
Automation tool commonly used with Cisco devices?Ansible
Protocol to prevent rogue DHCP servers?DHCP Snooping
Command to enable DHCP Snooping on a switch?ip dhcp snooping
What is a BPDU?Bridge Protocol Data Unit
Purpose of HSRP?Provides gateway redundancy
What port does HTTPS use?Port 443
Role of a Next-Hop in routing?Indicates where to send a packet next
Default Hello interval for OSPF?10 seconds
Default Dead interval for OSPF?40 seconds
What is a virtual LAN (VLAN) trunking protocol?802.1Q
Difference between standard and extended ACLs?Standard ACLs filter by source IP; extended ACLs filter by source/destination and protocol
Command to view NAT statistics?show ip nat statistics
Tools for multi-device automation workflows?Python or Ansible
Command to verify SSH version?show ip ssh
Purpose of a wildcard mask in ACLs?Specifies IP ranges for filtering
What protocol does SYSLOG use?UDP (usually on port 514)
What does SNMP stand for?Simple Network Management Protocol
What is RSTP?Rapid Spanning Tree Protocol
What does PoE stand for?Power over Ethernet
Command to enable IPv6 on a router?ipv6 enable
Primary purpose of 802.11 standards?Wireless LAN communications
Front
Key difference between RADIUS and TACACS+?
Click the card to flip
Back
RADIUS combines authentication and authorization; TACACS+ separates them
Front
What is a virtual LAN (VLAN) trunking protocol?
Back
802.1Q
Front
Default administrative distance of OSPF?
Back
110
Front
Tools for multi-device automation workflows?
Back
Python or Ansible
Front
Protocol to prevent rogue DHCP servers?
Back
DHCP Snooping
Front
Purpose of HSRP?
Back
Provides gateway redundancy
Front
What does SNMP stand for?
Back
Simple Network Management Protocol
Front
Purpose of PortFast in STP?
Back
Allows a port to bypass listening/learning states
Front
Role of a Next-Hop in routing?
Back
Indicates where to send a packet next
Front
Primary purpose of 802.1X?
Back
Port-based access control
Front
What is a BPDU?
Back
Bridge Protocol Data Unit
Front
Protocol used for network automation?
Back
RESTCONF or NETCONF
Front
Default port for SNMP?
Back
Port 161
Front
What is RSTP?
Back
Rapid Spanning Tree Protocol
Front
Command to enable IPv6 on a router?
Back
ipv6 enable
Front
What does PoE stand for?
Back
Power over Ethernet
Front
Default Dead interval for OSPF?
Back
40 seconds
Front
What port does HTTPS use?
Back
Port 443
Front
Protocol that prevents switching loops?
Back
Spanning Tree Protocol (STP)
Front
Protocol that encrypts web traffic?
Back
HTTPS
Front
What protocol does SYSLOG use?
Back
UDP (usually on port 514)
Front
Command to enable DHCP Snooping on a switch?
Back
ip dhcp snooping
Front
Default Hello interval for OSPF?
Back
10 seconds
Front
Command to enable BPDU Guard on an interface?
Back
spanning-tree bpduguard enable
Front
Role of TACACS+ in a network?
Back
Centralized authentication and authorization
Front
Command to generate cryptographic keys for SSH?
Back
crypto key generate rsa
Front
Protocol used to synchronize device clocks?
Back
NTP (Network Time Protocol)
Front
Difference between standard and extended ACLs?
Back
Standard ACLs filter by source IP; extended ACLs filter by source/destination and protocol
Front
Automation tool commonly used with Cisco devices?
Back
Ansible
Front
Purpose of a wildcard mask in ACLs?
Back
Specifies IP ranges for filtering
Front
Command to verify SSH version?
Back
show ip ssh
Front
Protocol used for securing communication between devices?
Back
IPSec
Front
What does AAA stand for in network security?
Back
Authentication, Authorization, Accounting
Front
Default administrative distance of EIGRP?
Back
90
Front
Protocol that replaces Telnet for secure remote management?
Back
SSH
Front
Command to enable HTTPS access to a device?
Back
ip http secure-server
Front
What is the primary purpose of EIGRP?
Back
Internal gateway routing
Front
Primary difference between IPv4 and IPv6 addressing?
Back
IPv6 uses 128-bit addresses; IPv4 uses 32-bit addresses
Front
Command to view NAT statistics?
Back
show ip nat statistics
Front
Primary purpose of 802.11 standards?
Back
Wireless LAN communications
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Comprehensive CCNA Security, Automation, and Protocols flashcard deck covering essential topics like Spanning Tree Protocol (STP), OSPF and EIGRP administrative distances, IPSec, network automation tools, 802.1X, AAA, DHCP Snooping, VLANs, RSTP, and more. Ideal for mastering network protocols, securing device communications, routing, and automation with detailed Q&A pairs designed for effective learning and exam preparation.
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