WGU D415 – SDN UESTIONS WITH
COMPLETE SOLUTIONS GRADED +
Which OSI model layer is responsible for the segment protocol data unit?Network Transport Application Data link Answer - Transport Which protocol in the software-defined networking (SDN) framework is responsible for defining the communication between the controller and a network device?OpenFlow Telnet Point-to-point Address resolution Answer - OpenFlow Which network automation tool is open source?BlueCat gateway Chef Ansible Puppet Enterprise Answer - Ansible What is a benefit of using network automation?Backing up and restoring data Using infrastructure as code to maintain a reliable state Dynamic allocation of IP addresses Boosting storage Answer - Using infrastructure as code to maintain a reliable state Which service introduces flexibility, dynamism, and automation into the management of network objects?Open source for network functions virtualization (NFV) OpenStack Network functions virtualization (NFV) Software-defined networking (SDN) Answer - Software-defined networking (SDN) 1 / 3
Which OpenStack unit provides authentication?Cinder Nova Keystone Neutron Answer - Keystone Which interface in SDN allows the controller to communicate, interact, and manage forwarding elements?Westbound Flow ID Southbound Eastbound Answer - Southbound Which OpenFlow SDN controller has a multi-threaded, cross-platform, and modular emphasis?FlowVisor OpenDaylight (ODL) Project Floodlight Beacon Answer - Beacon Which port number is used as the destination of a server by Dynamic Host Configuration Protocol?23 53 67 68 Answer - 67 Which IPv6 address identifies each network interface?Multicast Broadcast Anycast Unicast Answer - Anycast Which network virtualization (NV) approach refers to a logical local area network (LAN) based on physical LANs?Virtual private networks (VPN) Virtual private LAN services (VPLS) Virtual LANs (VLANs) Wide area network (WAN) Answer - Virtual LANs (VLANs) Which network virtualization benefit involves using virtual networks to create slices to reserve networking resources?Debugging and intrusion detection 2 / 3
Resource optimization Mobility Testing/quality assurance Answer - Debugging and intrusion detection Which layer 2 virtual networking device is responsible for controlling data frames to connected devices?Router Hub Bridge Switch Answer - Switch Which virtual networking protocol is used to support VPNs and does not provide encryption?Layer 2 Tunneling Protocol (L2TP) Point-to-Point Protocol (PPP) Internet Key Exchange version 2 (IKEv2) Secure Socket Layer (SSL) Answer - Layer 2 Tunneling Protocol (L2TP) What is the AAA mechanism responsible for granting user privileges to network resources?Authorization Authentication Accounting Availability Answer - Authorization Which authentication type validates a user based on what the person knows?Retinal scans Swipe card Password Unique tokens Answer - Password Which phase of an attack involves the attacker gathering information about the target?Escalating privileges Exploiting the system Clearing tracks Reconnaissance Answer - Reconnaissance Which term refers to a weakness or gap in a security system that can be exploited by an attacker?Threat Vulnerability Attack Risk Answer - Vulnerability
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