Cisco.Braindumps.600-504.v2015-03-13.by.Early · D. XNC provides support for the onePK, OpenFlow...

Braindumps 600-504 60q

Number: 600-504Passing Score: 800Time Limit: 120 minFile Version: 16.5

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600-504

Implementing Cisco Network Programmability

Exam A

QUESTION 1Which two statements about RFC6020 are true? (Choose two.)

A. YANG is a data modeling language.B. YANG is a protocol to configure network devices.C. YANG is used by OF-CONFIG.D. YANG is used by BGP-LS.E. YANG is an object-oriented programming language.

Correct Answer: ACSection: (none)Explanation

Explanation/Reference:Explanation:

QUESTION 2Applications compiled by Java are better adaptive to different operating systems like Windows and Linux than applications compiled by C compiler. Which optiondescribes why Java applications are more independent from the OS than C applications?

A. Java has a DLL to abstract the difference of OS.B. Java compiler is smarter than C compiler.C. Java compiler creates byte code that is run on Java VM, and Java VM is prepared for each OS.D. This is an urban legend. No difference between Java and C.

Correct Answer: ASection: (none)Explanation


QUESTION 3Which option describes what VPLS, GRE, and VXLAN are examples of?

A. network operational modelsB. virtualized networks

C. network slicing mechanismsD. overlay networksE. neural networksF. protocol independent networksG. link-state networksH. open networks

Correct Answer: DSection: (none)Explanation


QUESTION 4Which two licenses are compatible with the GNU General Public License? (Choose two.)

A. Apache License version 1.1B. Creative Commons licensesC. MIT licenseD. Mozilla Public License version 1.1E. Modified BSD license

Correct Answer: CESection: (none)Explanation


QUESTION 5A financial transaction processing application is in development testing. The developers can access the web interface, but they are unable to log in to theapplication. Which two steps are important for troubleshooting? (Choose two.)

A. Check for proper installation of the X Window System.B. Verify that the correct login credentials are being used.C. Check the routing between the user and the application web server.D. Check the authentication system to see if it is operating correctly.

E. Check the load-balancer configuration.

Correct Answer: BDSection: (none)Explanation


QUESTION 6Which four considerations are critical to achieve the full potential of the underlying IT infrastructure and to understand the environment an application is deployedin? (Choose four.)


A. location of the servers and end nodesB. unlimited line capacitiesC. firewalls and security appliances deployedD. redundancy and HAE. no cost constraintsF. network design

Correct Answer: ACDFSection: (none)Explanation


QUESTION 7Which three options are examples of protocols, frameworks, or architectures that provide APIs? (Choose three.)

A. OSPF

B. OSGiC. OpFlexD. RADIUSE. RESTF. RSVP

Correct Answer: BCESection: (none)Explanation


QUESTION 8Which three options are examples of open source licenses? (Choose three.)

A. MITB. Creative CommonsC. Free For AllD. General Public LicenseE. ApacheF. libgif

Correct Answer: ABESection: (none)Explanation


QUESTION 9Which two onePK deployment models reflect Cisco recommended guidelines for high- performance applications that leverage the Data Path Service Set? (Choosetwo.)

A. process hostedB. blade hostedC. cloud hostedD. endpoint hosted

E. controller hosted

Correct Answer: ABSection: (none)Explanation


Topic 2, Deployment design development

QUESTION 10Which two statements about overlay networks that consist of virtual switches that run on a supervisor are true? (Choose two.)

A. Virtual switch work load may impact applications that run on the same physical server.B. Virtual switch work load may impact applications that run on the same virtual server.C. It is easy to identify affected paths of the overlay network when a link of physical network is down.D. It is not easy to identify affected paths of the overlay network when a link of physical network is down.



QUESTION 11Which two statements about Open Daylight Controller clustering are true? (Choose two.)

A. The cluster has multiple super nodes.B. The maximum number of nodes in the cluster is three.C. REST API requests should be reach supernodes.D. OpenFlow 1.3 enable switches to connect multiple controllers.E. Clustering is supported only in commercial versions of OpenDaylight.

Correct Answer: ADSection: (none)Explanation


QUESTION 12When you test an application that requires PCI compliance, which three methodologies should be considered? (Choose three.)

A. data loss prevention controlsB. a firewall as part of the topologyC. default system passwords and AAA configurationD. in-flight data encryptionE. two-factor authentication for administratorsF. mandatory TLS pinning

Correct Answer: ABDSection: (none)Explanation


QUESTION 13Which Cisco onePK deployment model is optimal for centralized management of the custom application?

A. process hostedB. blade hostedC. container hostedD. endpoint hostedE. controller hosted



QUESTION 14Which option is the ISO series of standards that is related to technical product documentation?

A. ISO 21:1985B. S1000DC. RFC 2026D. ICS 01.110E. ISO/TS 80004



QUESTION 15In which document do you describe how the application is deployed and configured?

A. functional specificationB. product requirement documentC. low-level design documentD. high-level design document

Correct Answer: CSection: (none)Explanation


QUESTION 16Which statement about local storage versus network-based storage is true?

A. Local storage has higher latency than network-based storage.B. Local storage has more flexibility in terms of size.C. Network-based storage has higher latency than local storage.D. Network-based storage requires the server and the storage to be connected to the same switch.

Correct Answer: CSection: (none)

Explanation


QUESTION 17Which option describes the goal of acceptance testing?

A. testing that a single function or procedure in the code is implemented correctlyB. testing that a specific bug discovered in the past does not reoccurC. testing that the feature implemented is correct and complete according to the requirements and design documentD. testing that the system under test still starts and performs very basic operations



QUESTION 18Which three statements about the Cisco Extensible Network Controller are true? (Choose three.)

A. XNC is the second commercial version of the OpenDaylight controller.B. XNC provides applications such as Monitor Manager, Topology-Independent Forwarding, Virtual Patch Panel, and Network Slicing.C. XNC provides advanced GUI and superior troubleshooting and debugging capabilities compared to the OpenDaylight controller.D. XNC provides support for the onePK, OpenFlow 1.0, I2RS, BGP-LS, and PCE-P for communication with network devices.E. XNC provides integration with an external AAA server for authentication as well as for authorization for both GUI and REST API calls.F. Native programming language APIs are available for Java, C, and Python.



QUESTION 19Which two options are good reasons to deploy onePK in an endpoint hosted model? (Choose two.)


A. direct connectivity to device dataplaneB. ability to override device process prioritiesC. centralized application managementD. signed packages for containersE. choice in compute platform performance



QUESTION 20Which two descriptions of Cisco onePK v1 and higher applications are true? (Choose two.)

A. direct connectivity to device dataplaneB. TLS enabled by defaultC. centralized application managementD. signed packages for containersE. choice in compute platform performance



QUESTION 21

Which command displays the APIs used during the execution of a onePK application?

A. show onep statusB. show onep statistics session allC. show onep history session allD. show virtual-serviceE. debug virtual-service events



Topic 3, Configuration and implementation

QUESTION 22Which configuration statement applies an access list named ACCESSLIST to a class map if it is applied in a class-map context at the Cisco IOS CLI?

A. match access-group name ACCESSLIST class ACCESSLISTB. class-map match-any ACCESSLISTC. policy-map ACCESSLISTD. service-policy input ACCESSLIST



QUESTION 23A specific application OVA file states the following requirements: four virtual CPUs, 12 GB DRAM, 300 GB HDD, and 400 MB/s Disk I/O. Which two physicalcomponents satisfy the requirements if the host server only had this virtual guest installed? (Choose two.)

A. 8-core x64 processorB. 500 GB SATA 3 7K RPM HDDC. 400 GB SAN LUN via 10GE/FCoE

D. dual 240-pin 4 GB DDR3 SDRAM modulesE. Ultra-320 SCSI adaptor



QUESTION 24Which access list entry blocks ssh connections to the server?

A. access-list 101 deny tcp any any eq 22B. access-list 101 permit tcp any any eq 23C. access-list 101 deny tcp any eq 22 anyD. access-list 101 permit tcp any eq 23 any



QUESTION 25Which resource record defines an IP address assigned to a name in the zone file of bind (DNS)?

A. PTR recordB. NS recordC. A recordD. MX record



QUESTION 26Exhibit:

Refer to the exhibit. When you install a new onePK application written in Python to the Linux PC and run it, you see this error. Which two options are possiblecauses of this problem? (Choose two.)

A. No onePK python SDK exists.B. policyservice is not a valid package name of onePK.C. PYTHONPATH does not include the path to onePK python SDK.D. The installed SDK version does not match the Cisco IOS onePK version that is running on the target network device.



QUESTION 27Which two ways to check if QoS is set correctly by the Policy Service Set of onePK are true? (Choose two.)

A. Use the show policy-map interfaces command to check which QoS parameters are set to interfaces.B. Use the show policy-manager policy command to check which QoS parameters are set on the device.C. Use the traffic generator and capture equipment to check if the QoS parameters are set on the device correctly.D. Use the show running-configuration command to check which QoS parameters are set on the device.



QUESTION 28

Which command redistributes routes installed by app1 into BGP?

A. redistribute application app1B. redistribute application app1:1C. redistribute application app1:*D. redistribute app1



QUESTION 29Your application uses a Cisco onePK function call to read interface statistics. Which four types of software does that same function call work across? (Choosefour.)

A. Cisco IOS SoftwareB. Cisco IOS XR SoftwareC. Juniper JUNOS SoftwareD. Cisco IOS XE Software OptionE. Cisco NX-OS SoftwareF. Huawei OS SoftwareG. Cisco StarOS Software

Correct Answer: ABDESection: (none)Explanation


QUESTION 30In which three ways can onePK applications be packaged? (Choose three.)

A. .pkg for process-hosted applicationB. RPM file on Linux end node

C. OVA file for process-hosted applicationD. .pcap for blade-hosted applicationE. .msi file for Windows end node



QUESTION 31With respect to security, which two methods are typically used to secure onePK transport between application and device(s)? (Choose two.)

A. TLS using self-signed certificateB. using tcp transport typeC. using Easy VPND. TLS using a certificate authorityE. using udp transport type

Correct Answer: ADSection: (none)Explanation


QUESTION 32Which option is the correct method when installing the onePK Python SDK in an environment for the first time?

A. python setup.py build build-base="python-sdk-installation directory"set PYTHONPATH/python-sdk-installation-directoryB. python setup.py install install-headers="python-sdk-installation directory"C. python setup.py installD. python setup.py install --prefix="python-sdk-installation directory"setenv PYTHONPATH/python-sdk-installation-directory



Topic 4, Troubleshooting

QUESTION 33Which command should be used on the Linux PC to check if a TCP session is established between a network device and a network device control application onthe Linux PC?

A. netstat -nrB. netstat -sC. netstat -ntD. netstat -ni



QUESTION 34Which command should be used on the Linux PC to check how much memory is used by a specific onePK application?

A. cat /proc/cpuinfoB. ps -efC. vmstat -sD. top



QUESTION 35When troubleshooting a performance problem in an application, which storage metric is the most relevant to application performance?


A. disk rotations per minuteB. VMFS oversubscriptionC. available storageD. disk latencyE. encryption methodF. world wide port name



QUESTION 36During application development using network capability, which three applications help to identify network problems that are happening on your application?(Choose three.)

A. pingB. netstatC. tcpdumpD. lsE. topF. df

Correct Answer: ABCSection: (none)Explanation


QUESTION 37Your application encounters an error when writing data on a file. To troubleshoot, you enter the df h command. Which option describes what you can check withthis command?

A. disk usage per partitionsB. filesystem permissionC. disk quotaD. file permission



QUESTION 38You want to see the CPU usage and monitor it for a while. Which command provides that information?

A. pstreeB. psC. topD. pstack



QUESTION 39You are troubleshooting an application that installs application routes into the routing table of your core network routers. Which serviceability feature helps totroubleshoot transient application routes?

A. access to the application source code

B. limiting the application routes that can be installed to a /24 or greaterC. an entry in the router syslog when an application route is installed or removedD. an entry in the router syslog when the application detects high router CPUE. a command to flush all application routes from the router



QUESTION 40Exhibit:

Refer to the exhibit. Based on the output, which action does the switch take for traffic coming into port 1 that is destined for IP address 10.10.10.10?

A. Output to all ports because the MAC address is not known.B. Punt to the controller.C. Output to port 3.D. Drop the traffic.



QUESTION 41Which three pieces of information are required for the Cisco Extensible Network Controller to encrypt OpenFlow traffic using TLS? (Choose three.)

A. IPsec tunnel keysB. XNC private keyC. XNC public certificateD. running XNC in SSH pinning modeE. OpenFlow switch CA certificate



QUESTION 42Which combination is valid for a running Extensible Network Controller instance?

A. OpenFlow encrypted, onePK encryptedB. OpenFlow unencrypted, onePK encryptedC. OpenFlow encrypted, onePK unencryptedD. OpenFlow unencrypted, onePK unencrypted



QUESTION 43

Which two master/agent model configuration automation solutions should you use to automate switch configuration and upgrades? (Choose two.)

A. CactiB. PuppetC. Tcl ScriptsD. Python ScriptsE. Chef

Correct Answer: BESection: (none)Explanation


QUESTION 44Which programming language is used to develop Chef recipes?

A. JSONB. PuppetC. XMLD. HTMLE. Ruby

Correct Answer: ESection: (none)Explanation


QUESTION 45Which CLI command can you use on an Cisco IOS-based device to see the CPU utilization impact of a connected onePK application?

A. show processes cpu | i onepkB. show onepk performanceC. show onep performanceD. show onep statistics session all

E. show onpe session all



QUESTION 46Which option describes the best way to see the Thrift messages between a onePK-based application and a network element without enabling debugs?

A. Take a packet capture between the network element and application.B. Use the CLI command debug onep thrift.C. Use the CLI command show onep trace on the network element.D. Use the CLI command debug onep server on the network element.



QUESTION 47Exhibit:

Refer to the exhibit. H1 cannot ping H2. You have a Cisco onePK application that allows you to apply an ACL matching traffic flow between H1 and H2, on therouter interfaces. Which command do you enter from the CLI of each router to check if the ACL is applied on its interfaces?

A. show ip access-listsB. show ip access-lists interface interfaceC. show ip access-list dynamicD. show run | in ip access-list



QUESTION 48Which three commands from the CLI can be used to check for active TCP connections from Cisco onePK applications? (Choose three.)

A. show onep history all and show onep staB. show onep session all

C. show users allD. show tcp brief and show onep statusE. show onepk session allF. netstat -ant

Correct Answer: BCDSection: (none)Explanation


QUESTION 49Exhibit:

Refer to the exhibit. You try to connect to a network element using a Cisco onePK application. You get this error while running the application. Which optiondescribes the issue?

A. There is no reachability to the network element through pings (ICMP). Routing must be checked.B. An ACL is configured on router that does not allow the onePK application to establish a connection.C. A "session max" is configured on the router, and the number of sessions to the router has been exceeded.D. There is an error in the onePK application code, and an incorrect argument was passed in one of the APIs.E. A firewall rule is blocking the onePK TCP connection to the router.


Explanation/Reference:

Explanation:

QUESTION 50Exhibit:

Refer to the exhibit. You try to connect to a network element using a Cisco onePK application. You get this error while running the application. Which optiondescribes the issue?

A. There is no reachability to the network element. ICMP and TCP connectivity must be checked along the path.B. A "session max" is configured on the router, and the number of sessions to the router has been exceeded.C. There is an error in the onePK application code, and an incorrect argument was passed in one of the APIs.D. A firewall rule is blocking the onePK TCP connection to the router.E. There is a TLS certificate issue while connecting to the router.



QUESTION 51How many significant requirements must a business comply with for PCI Standards Council certification?

A. 12B. 10C. 22D. 7E. 4

Correct Answer: ASection: (none)

Explanation


QUESTION 52Which two protocols are used within a Cisco onePK application when using an encrypted communications device? (Choose two.)

A. SSHv2B. SNMPv3 authPrivC. Transport Layer SecurityD. Transparent Inter-process CommunicationE. MD5

Correct Answer: CDSection: (none)Explanation


QUESTION 53Which command shows the amount of input/output bytes used between an onePK application and the target device(s)?

A. show onep statusB. show onep statistics session allC. show onep history session allD. debug onep application session allE. show virtual-service detail

Correct Answer: BSection: (none)Explanation


Topic 5, Operation and optimization

QUESTION 54Which technology helps to determine the average UDP latency between two places in the network?

A. show interface statisticsB. NetFlow dataC. Cisco Performance RoutingD. Cisco IOS IP SLAsE. SSHF. show udp latency



QUESTION 55Which two methods increase the overall network bandwidth for a web host? (Choose two.)

A. Replace bandwidth with priority in CBWFQ configuration.B. Install additional vswitches on the host.C. Add additional NICs to the host LACP.D. Use policy-based routing on the source port of packets destined to the web server to traverse a higher bandwidth link.E. Mark DSCP to an established HTTP queue with higher allocations.


F. Use a low latency SLB.G. Add vCPUs to the virtual machine.

Correct Answer: CESection: (none)

Explanation


QUESTION 56Which two commands are needed to view load averages of a server to sample normal operation? (Choose two.)

A. vmstatB. topC. psD. uptimeE. dstatF. iostat

Correct Answer: BDSection: (none)Explanation


QUESTION 57Which Cisco onePK SDK function prints user-friendly error messages?

A. write_msg()B. sys.stdout()C. onep_strerror()D. onep_OK()E. onep_write_err()



QUESTION 58

You are responsible for deploying a Cisco onePK designed network infrastructure. Which four options are Cisco recommended best practices when definingnaming conventions? (Choose four).

A. devicesB. flowsC. applicationsD. VLANsE. gatewaysF. variablesG. functions

Correct Answer: ABDESection: (none)Explanation


QUESTION 59A network administrator reports that a new OpenFlow-enabled switch fails to register to a controller. Which three troubleshooting tasks can help to resumeoperations? (Choose three.)

A. Verify that the controller is listening on port 6633 on localhost.B. Verify that the controller is listening on port 6633 on all addresses.C. Verify the JAVA_HOME Path.D. Verify that the firewall allows access to port 6633.E. Verify that TCP port 8080 is operational.F. Verify that the switch is multicasting on port 6633.

Correct Answer: BDESection: (none)Explanation


QUESTION 60Exhibit:

Refer to the exhibit. When an administrator starts XNC controller services, the console logs an exception error. Which configuration file can the administratorupdate to change the default Catalina service connector port?

A. . xnc.confB. tomcast-server.xmlC. runone.shD. csdnv1.confE. Topo-cisco.py

Correct Answer: BSection: (none)Explanation



Cisco.Braindumps.600-504.v2015-03-13.by.Early · D. XNC provides support for the onePK, OpenFlow...

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