SDN, Automation Flashcards
Which statement about the Cisco ACI fabric is most accurate?
A. The APIC is able to enforce security by inserting itself into the data path.
B. The fabric header carries the EPG from the egress to the ingress leaf switch.
C. An APIC is a cluster of at least three APIC controllers, providing a single point of management without a single point of failure.
D. The spine switch rewrites the EPG from ingress to egress when it performs the forwarding proxy function
C. An APIC is a cluster of at least three APIC controllers, providing a single point of management without a single point of failure.
Which API is used in controller-based architectures to interact with edge devices? A. overlay B. northbound C. underlay D. southbound
D. southbound
What are two characteristics of a controller-based network? (Choose two)
A. The administrator can make configuration updates from the CLI
B. It uses northbound and southbound APIs to communicate between architectural layers
C. It moves the control plane to a central point
D. It decentralizes the control plane, which allows each device to make its own forwarding decisions
E. It uses Telnet to report system issues.
B. It uses northbound and southbound APIs to communicate between architectural layers
C. It moves the control plane to a central point
What are two southbound APIs? (Choose two) A. Thrift B. NETCONF C. Open Flow D. DSC E. CORBA
B. NETCONF
C. Open Flow
Which statement correctly compares traditional networks and controller-based networks?
A. Only traditional networks offer a centralized control plane
B. Only traditional networks natively support centralized management
C. Traditional and controller-based networks abstract policies from device configurations
D. Only controller-based networks decouple the control plane and the data plane
D. Only controller-based networks decouple the control plane and the data plane
Which two capacities of Cisco DNA Center make it more extensible? (Choose two)
A. adapters that support all families of Cisco IOS software
B. SDKs that support interaction with third-party network equipment
C. customized versions for small, medium, and large enterprises
D. REST APIs that allow for external applications to interact natively with Cisco DNA Center
E. modular design that is upgradable as needed
B. SDKs that support interaction with third-party network equipment
D. REST APIs that allow for external applications to interact natively with Cisco DNA Center
What makes Cisco DNA Center different from traditional network management applications and their management of networks?
A. It only supports auto-discovery of network elements in a green field deployment.
B. It modular design allows someone to implement different versions to meet the specific needs of an organization
C. It abstracts policy from the actual device configuration
D. It does not support high availability of management functions when operating in cluster mode
C. It abstracts policy from the actual device configuration
Which option best describes an API?
A. communication often uses either Java scripting, Python, XML, or simple HTTP
B. an architectural style (versus a protocol) for designing applications
C. a stateless client-server model
D. request a certain type of data by specifying the URL path that models the data
C. a stateless client-server model
Which option about JSON is true?
A. uses predefined tags or angle brackets (<>) to delimit markup text
B. used to describe structured data that includes arrays
C. used for storing information
D. similar to HTML, it is more verbose than XML
B. used to describe structured data that includes arrays
Which of the following is the JSON encoding of a dictionary or hash?
A. {“key”: “value”}
B. [“key”, “value”]
C. {“key”, “value”}
D. (“key”: “value”)A. {“key”: “value”}
Which two encoding methods are supported by REST APIs? (Choose two) A. YAML B. JSON C. EBCDIC D. SGML E. XML
B. JSON
E. XML
What are two benefits of network automation? (Choose two)
A. reduced operational costs
B. reduced hardware footprint
C. faster changes with more reliable results
D. fewer network failures
E. increased network security
A. reduced operational costs
C. faster changes with more reliable results
Drag and Drop Question
Ansible:
Chef:
Puppet:
+ uses TCP port 10002 for configuration push jobs
+ uses SSH for remote device communication
+ uses Ruby for fundamental configuration elements
+ uses TCP port 10002 for configuration push jobs
+ fundamental configuration elements are stored in a manifest
+ uses Ruby for fundamental configuration elements
+ uses TCP 8140 for communication
+ uses YAML for fundamental configuration elements
Ansible:
+ uses SSH for remote device communication
+ uses YAML for fundamental configuration elements
Chef:
+ uses Ruby for fundamental configuration elements
+ uses TCP port 10002 for configuration push jobs
Puppet:
+ fundamental configuration elements are stored in a manifest
+ uses TCP 8140 for communication
Which three statements about MAC addresses are correct? (Choose three)
A. To communicate with other devices on a network, a network device must have a unique MAC address
B. The MAC address is also referred to as the IP address
C. The MAC address of a device must be configured in the Cisco IOS CLI by a user with administrative privileges
D. A MAC address contains two main components, the first of which identifies the manufacturer of the hardware and the second of which uniquely identifies the hardware
E. An example of a MAC address is 0A:26:B8:D6:65:90
F. A MAC address contains two main components, the first of which identifies the network on which the host resides and the second of which uniquely identifies the host on the network
A. To communicate with other devices on a network, a network device must have a unique MAC address
the Cisco IOS CLI by a user with administrative privileges
D. A MAC address contains two main components, the first of which identifies the manufacturer of the hardware and the second of which uniquely identifies the hardware
E. An example of a MAC address is 0A:26:B8:D6:65:90
Which Cisco IOS command will indicate that interface GigabitEthernet 0/0 is configured via DHCP?
A. show ip interface GigabitEthernet 0/0 dhcp
B. show interface GigabitEthernet 0/0
C. show ip interface dhcp
D. show ip interface GigabitEthernet 0/0
E. show ip interface GigabitEthernet 0/0 brief
D. show ip interface GigabitEthernet 0/0
