Domain 4: (Communication & Network Security) Flashcards
What enables network segmentation at a high scale, overcomes VLAN scale limitations, and is a tunneling protocol that encapsulates layer 2 in a UDP packet?
VXLAN
Virtual Extensible LAN
What enables the network to be intelligently and centrally controlled using software, and can reprogram the data plane?
Software Defined Networks
SDN
What are some vulnerabilities for a software defined network?
Man-in-the-middle attack
Denial of Service
What enables users in branch offices to remotely connect to an enterprise’s network, allows use of many network services (MPLS, LTE) to securely connect users to apps, and security is mainly based on IPsec, VPN, and NGFWs.
Software Defined Wide-Area Networks
SD-WAN
What uses and only needs LEDs to transmit data, can safely function in areas otherwise susceptible to electromagnetic interference, and can transmit at speeds of up to 100 Gbit/s.
Light Fidelity
LiFi
What is a short-range wireless personal area network technology developed to support automation, machine-to-machine communication, remote control, and monitoring of IoT devices?
Zigbee
Personal Area Network
What supports centralized and distributed security models, mesh topology, and assumes that symmetric keys used are transmitted securely for IoT devices?
Zigbee
What is a geographically distributed network of proxy servers and their data centers, delivers content spatially relative to users, and have been targeted to inject malicious content into pages?
Content Delivery Networks
CDN
What are the seven layers of the OSI model in order.
Physical
Data Link
Network
Transport
Session
Presentation
Application
What protocol is on TCP and operates on port 20/21?
File Transfer Protocol
FTP
What protocol is on TCP and operates on port 22?
Secure Shell
SSH
What protocol is on TCP and operates on port 23?
Telnet
What protocol is on TCP and operates on port 25?
Simple Mail Transfer Protocol
SMTP
What protocol is on TCP/UDP and operates on port 53?
Domain Name System
DNS
What protocol is on UDP and operates on port 67/68?
Dynamic Host Configuration Protocol
DHCP
What protocol is on UDP and operates on port 69?
Trivial File Transfer Protocol
TFTP
What protocol is on TCP and operates on port 80?
Hypertext Transfer Protocol
HTTP
What protocol is on TCP and operates on port 110?
Post Office Protocol
POP3
What protocol is on UDP and operates on port 123?
Network Time Protocol
NTP
What protocol is on TCP/UDP and operates on port 137/138/139?
NetBIOS
What protocol is on TCP and operates on port 143?
Internet Message Access Protocol
IMAP
What protocol is on TCP/UDP and operates on port 161/162?
Simple Network Management Protocol
SNMP
What protocol is on TCP and operates on port 179?
Border Gateway Protocol
BGP
What protocol is on TCP/UDP and operates on port 389?
Lightweight Directory Access Protocol
LDAP