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QUESTION 1
What are two southbound APIs? (Choose two.)
A. Thrift
B. DSC
C. CORBA
D. NETCONF
E. OpenFlow
Correct Answer: DE
OpenFlow is a well-known southbound API. OpenFlow defines the way the SDN Controller should interact with the
forwarding plane to make adjustments to the network, so it can better adapt to changing business requirements.
The Network Configuration Protocol (NetConf) uses Extensible Markup Language (XML) to install, manipulate and
delete configuration to network devices.
Other southbound APIs are:
1.
onePK: a Cisco proprietary SBI to inspect or modify the network element configuration without hardware upgrades.
2.
OpFlex: an open-standard, distributed control system. It send “summary policy” to network elements.
QUESTION 2
Refer to the exhibit. What commands are needed to add a subinterface to Ethernet0/0 on R1 to allow for VLAN 20, with
IP address 10.20.20.1/24?
A. R1(config)#interface ethernet0/0 R1(config)#encapsulation dot1q 20 R1(config)#ip address 10.20.20.1
255.255.255.0
B. R1(config)#interface ethernet0/0.20 R1(config)#encapsulation dot1q 20 R1(config)#ip address 10.20.20.1
255.255.255.0
C. R1(config)#interface ethernet0/0.20 R1(config)#ip address 10.20.20.1 255.255.255.0
D. R1(config)#interface ethernet0/0 R1(config)#ip address 10.20.20.1 255.255.255.0
Correct Answer: B
QUESTION 3
Which protocol does an access point use to draw power from a connected switch?
A. Internet Group Management Protocol
B. Adaptive Wireless Path Protocol
C. Cisco Discovery Protocol
D. Neighbor Discovery Protocol
Correct Answer: C
QUESTION 4
What are two similarities between UTP Cat 5e and Cat 6a cabling? (Choose two.)
A. Both operate at a frequency of 500 MHz.
B. Both support runs of up to 55 meters.
C. Both support runs of up to 100 meters.
D. Both support speeds of at least 1 Gigabit.
E. Both support speeds up to 10 Gigabit.
Correct Answer: CD
QUESTION 5
What are two characteristics of the distribution layer in a three-tier network architecture? (Choose two.)
A. serves as the network aggregation point
B. provides a boundary between Layer 2 and Layer 3 communications
C. designed to meet continuous, redundant uptime requirements
D. is the backbone for the network topology
E. physical connection point for a LAN printer
Correct Answer: BC
QUESTION 6
Which access layer threat-mitigation technique provides security based on identity?
A. Dynamic ARP Inspection
B. using a non-default native VLAN
C. 802.1x
D. DHCP snooping
Correct Answer: C
QUESTION 7
What role does a hypervisor provide for each virtual machine in server virtualization?
A. infrastructure-as-a-service.
B. Software-as-a-service
C. control and distribution of physical resources
D. services as a hardware controller.
Correct Answer: C
QUESTION 8
What are two differences between optical-fiber cabling and copper cabling? (Choose two.)
A. A BNC connector is used for fiber connections
B. The glass core component is encased in a cladding
C. The data can pass through the cladding
D. Light is transmitted through the core of the fiber
E. Fiber connects to physical interfaces using RJ-45 connections
Correct Answer: BD
QUESTION 9
Which configuration is needed to generate an RSA key for SSH on a router?
A. Configure VTY access.
B. Configure the version of SSH.
C. Assign a DNS domain name.
D. Create a user with a password.
Correct Answer: C
QUESTION 10
Which protocol is used in Software Defined Access (SDA) to provide a tunnel between two edge nodes in different
fabrics?
A. Generic Router Encapsulation (GRE)
B. Virtual Local Area Network (VLAN)
C. Virtual Extensible LAN (VXLAN)
D. Point-to-Point Protocol (PPP)
Correct Answer: C
QUESTION 11
If a notice-level messaging is sent to a syslog server, which event has occurred?
A. A network device has restarted.
B. A debug operation is running.
C. A routing instance has flapped.
D. An ARP inspection has failed.
Correct Answer: C
Usually no action is required when a route flaps so it generates the notification syslog level message (level 5).
QUESTION 12
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
Correct Answer: B
JSON data is written as name/value pairs.
A name/value pair consists of a field name (in double quotes), followed by a colon, followed by a value:
“name”:”Mark”
JSON can use arrays. Array values must be of type string, number, object, array, boolean or null..
For example:
{
“name”:”John”,
“age”:30,
“cars”:[ “Ford”, “BMW”, “Fiat” ]
}
QUESTION 13
Refer to the exhibit. If RTR01 is configured as shown, which three addresses will be received by other routers that are
running EIGRP on the network? (Choose three.)
A. 192.168.2.0
B. 10.4.3.0
C. 10.0.0.0
D. 172.16.0.0
E. 172.16.4.0
F. 192.168.0.0
Correct Answer: ACD
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