FINAL EXAM Flashcards by Deleted Deleted

A pharmaceutical company wants to contract the services of a cloud provider to store employee data and company-specific applications with strict access security. Which type of cloud would be the most appropriate for this scenario?

> community cloud

> public cloud

> hybrid cloud

> private cloud

private cloud

How well did you know this?

Not at all

Perfectly

What is a function provided by an implementation of a read-only automation solution?

> the ability to reduce risk by implementing security policies across the network infrastructure via automated changes

> the ability to use GET and SET requests to retrieve and send data across the network infrastructure

> the ability to use an automated request to audit configurations and manually deploy changes in order to implement compliance

> the ability to implement network infrastructure that receives a configuration from a specific centralized server

the ability to use an automated request to audit configurations and manually deploy changes in order to implement compliance

How well did you know this?

Not at all

Perfectly

Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)

> The TCP process running on the PC randomly selects the destination port when establishing a session with the server.

> UDP segments are encapsulated within IP packets for transport across the network

> The TCP source port number identifies the sending host on the network

> The UDP destination port number identifies the application or service on the server which will handle the data.

> The source port field identifies the running application or service that will handle data returning to the PC

> TCP is the preferred protocol when a function requires lower network overhead

UDP segments are encapsulated within IP packets for transport across the network

The UDP destination port number identifies the application or service on the server which will handle the data

The source port field identifies the running application or service that will handle data returning to the PC

How well did you know this?

Not at all

Perfectly

What type of attack targets an SQL database using the input field of a user?

> buffer overflow

> SQL injection

> Cross site scripting

> XML injection

SQL injection

How well did you know this?

Not at all

Perfectly

Which command can be used on Linux and MAC hosts to get IP addressing information?

> ipconfig

> ip address

> ifconfig

> networksetup -getinfo

ifconfig

How well did you know this?

Not at all

Perfectly

What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.)

> to create fewer collision domains

> to create more broadcast domains

> to enhance user bandwidth

> to insolate ARP request messages from the rest of the network

> to eliminate virtual circuits

> to isolate traffic between segments

to enhance user bandwidth

to isolate traffic between segments

How well did you know this?

Not at all

Perfectly

Which tool might a developer use as part of a Continuous Integration pipeline in order to build and test source code?

> SQL

> REST

> Docker

> Jenkins

Jenkins

How well did you know this?

Not at all

Perfectly

A packet is received by a server. The packet has destination port number of 8008. What protocol or service is requested?

> Telnet over SSH

> RESTCONF

> HTTP

> NETCONF

RESTCONF

How well did you know this?

Not at all

Perfectly

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

> Devices in VLAN 20 and the management VLAN see the frame

> All devices in all VLANs see the frame

> Only devices that are connected to the local switch see the frame

> Only devices in VLAN 20 see the frame

Only devices in VLAN 20 see the frame

How well did you know this?

Not at all

Perfectly

Which piece of software is responsible for creating and managing virtual machines, including allocating system resources to each virtual machine as needed?

> supervisor

> hypervisor

> host operating system

> hosted operating system

hypervisor

How well did you know this?

Not at all

Perfectly

How is an Ethernet MAC address constructed?

> The first 3 bytes represent the network upon which the host resides, and the last 3 bytes uniquely identify the host

> The first 3 bytes represent the vendor OUI, and the last 3 bytes are assigned uniquely by the vendor

> The first 3 bytes are uniquely assigned by LANA, and the last 3 bytes represent the serial number of the host

> The first 3 bytes represent the vendor OUI, and the last 3 bytes are assigned randomly by the operating system

The first 3 bytes represent the vendor OUI, and the last 3 bytes are assigned uniquely by the vendor

How well did you know this?

Not at all

Perfectly

Which Cisco SDK works with ACI?

> Cobra

> IMC

> UCS

> Instant Connect

Cobra

How well did you know this?

Not at all

Perfectly

What platforms are provided by DevNet for community members to share solutions, tool kits, and other resources with each other?

> communities

> forums

> sandboxes

> exchanges

exchanges

How well did you know this?

Not at all

Perfectly

Which two data formats can RESTCON use when requesting data or responding with data? (Choose two.)

> JSON

> XML

> YAML

> YANG

> HTML

JSON

XML

How well did you know this?

Not at all

Perfectly

Which DevNet resource would a developer use to look for a Python library that supports APIs for a specific Cisco product?

> DevNet Learning Labs

> Devlet Support

> Code Exchange

> DevNet Sandbox

Code Exchange

How well did you know this?

Not at all

Perfectly

A component was created with the intent of combining the disciplines and skills of Dev and Ops. This component created a new job role and implemented a best-practices playbook for doing Ops with software methods. Which component matches this description?

> Agile Infrastructure and Operations

> the SRE approach

> automated infrastructure

> shared Version control

the SRE approach

How well did you know this?

Not at all

Perfectly

Math the DevNet exchange type with the description

_________ : uses GitHub API and human moderators to categorize and display related repositories

_________ : a collection of network automation use cases with different solutions and toolkits

_________ : provides solutions across different technologies, industries, and geographies to jump start solution design and development

> code

> ecosystem

> automation exchange

code

automation exchange

ecosystem

How well did you know this?

Not at all

Perfectly

A user is working on Ansible on the local NMS to manage remote network devices. Which file is the user creating?

#Enter the devices for Ansible playbooks
Main-RT ansible_user=classuser ansible_passwork=class123! ansible_host=172.20.20.250
———————————

> service

> playbook

> variable

> hosts

hosts

How well did you know this?

Not at all

Perfectly

Which DevNet resource would a developer use in order to test custom code in a production-like environment?

> Devlet Support

> DevNet Learning Labs

> Code Exchange

> DevNet Sandbox

DevNet Sandbox

How well did you know this?

Not at all

Perfectly

In which situation would a company implement a reverse proxy as a security solution?

> when the company has a database and needs to point to a DNS server that uses different IP addresses for development resources

> when the company wants all responses to clients to look like they came from the same server instead of individual ones

> when a hash is created based on the IP address of the request to a particular protected server

> when responses from servers need to be sent over different paths to ensure quality response time to the client devices making the requests

when the company wants all responses to clients to look like they came from the same server instead of individual ones

How well did you know this?

Not at all

Perfectly

A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Agile method. What is a characteristic of this method?

> a software development process where the highest priority is to satisfy the customer through early and continuous delivery of valuable software

> a process that eliminates anything that does not add value to the project including meetings and documentation

> a software development process that has the results of one phase feed into the next phase

> a more traditional software development process as the have used this process in past projects

a software development process that has the results of one phase feed into the next phase

How well did you know this?

Not at all

Perfectly

> a software development process that prioritizes responding to change over following a plan

> a software development method that tracks closely with the software development life cycle

> a process that was developed for manufacturing, but adapted to other industries

> a more traditional software development process as they have used this process in past projects

a software development method that tracks closely with the software development life cycle

How well did you know this?

Not at all

Perfectly

A network engineer is creating a Docker container using the docker build command. If the engineer does not specify a tag, which tag will be used by default?

> tag

> latest

> (a black space)

> default

latest

How well did you know this?

Not at all

Perfectly

Which component in the pyATS ecology handles bundling and running jobs?

> AEtest

> Clover

> Genie

> EasyPy

EasyPy

How well did you know this?

Not at all

Perfectly

Which three avenues are available within DevNet for developers who need help with specific developer scenario questions concerning Cisco products? (Choose three.) > logging a ticket > posting to the DevNet zone > posting to a news group > posting to a community forum > posting to a Webex Teams space > posting on the Cisco Learning Network

logging a ticket posting to a community forum posting to a Webex Teams space

A student who is interested in network programmability approaches an instructor for advice on learning more about the subject. The student is a kinesthetic learner who learns by doing. Which DevNet resource should the instructor consider telling the student about? > DevNet Create > DevNet Learning Labs > DevNet Express > DevNet Zone

DevNet Learning Labs

What is the default shell commonly used on macOS and Linux? > tcsh > csh > Bourne > Bash

Bash

What is immutable infrastructure in DevOps? > infrastructure that is deployed with all component versions locked except for the ability to perform manual configuration changes > infrastructure that is only deployed and maintained in containers > infrastructure that is entirely maintained and deployed in code and never subjected to manual changes > virtualized infrastructure that is deployed as golden images

infrastructure that is entirely maintained and deployed in code and never subjected to manual changes

What is the most common cause of IT outages? > an engineer misconfiguring a device or network with manual changes > an experienced engineer using an open source product > an experienced engineer implementing a configuration using automation > a threat actor targeting the enterprise equipment

an engineer misconfiguring a device or network with manual changes

Which string of characters is used to identify the beginning of a new separate document when multiple documents are in a single YAML file? > three slashes "///" > three dots "..." > three pound signs "###" > three dashes "---"

three dashes "---"

What is the difference between functions and methods in the Python programming structure? > Functions can use global variables whereas methods can only use local variables > Functions are called by a referencing object whereas methods are called by the names > Functions can pass arguments whereas methods can pass only predefined keywords > Functions are standalone code blocks whereas methods are code block associated with an object

Functions are standalone code blocks whereas methods are code block associated with an object

Which command is used to create a new Git repository? > git init > git add > git commit > git clone

git init

Which stakeholder determines the useful value of software product features in the Lean process? > the customer > the Scrum master > the reviewer > the programmer

the customer

Match the SDLC phase with its description. __________ : software installed into the production environment __________ : code is developed according to low level and high level design documents __________ : code is installed into a testing environment to look for bugs __________ : the product owner and qualified team members gather the requirements for the software to be built > requirements & analysis > implementation > deployment

deployment implementation *---* requirements & analysis

What is a principle of the Lean software development model? > adding additional product features that the customer did not ask for so that the customer is getting more than expected > assigning resources to multiple projects so that effort can be divided on more than one task at a time > making decisions as late as possible in the process so that more facts and details are available > ordering workers to do tasks they may not want to do to ensure they get done

making decisions as late as possible in the process so that more facts and details are available

What character is used to separate the key and value pairs in YAML? > colon : > semi colon ; > underscore _ > forward slash /

colon :

Which git command is used to compare changes between files? > git diff > git merge > git checkout > git status

git diff

Match the missing components of the Python script for authenticating to the Cisco Network Services Orchestrator and obtaining a list of network devices using the username of "superadmin" and password of "soverysecure!". ------------------------------ import requests username = ' **COMPONENT1** ' password = ' **COMPONENT2** ! ' url = "https://devasc-nsc-1.cisco.com/restconf/data/tailf-ncs:devices/ **COMPONENT3** " headers = { 'Content-Type': "application/yang-data+json" } response = requests. **COMPONENT4** (url, auth = ( **COMPONENT5** , **COMPONENT6** ), headers=headers, verify=False) print (response.text) ------------------------------ > list > get > device > superadmin > username > soverysecure! > password

superadmin soverysecure! list get username password

What is an example of a use supported by Cisco UCS Director and USC Manager? > bare metal server provisioning and monitoring of virtual environments > call center and call management over IP networks > underlying central system workflow management and migration > telemetry data collection and analysis

bare metal server provisioning and monitoring of virtual environments

How can a Webex Teams administrator retrieve additional details about a user through an API call? > by using the value of the organization name in the API call > by using the value of a Webex Teams registered email address in the API call > by using the value of orgId in the API call > by using the value of the person id key in the API call

by using the value of the person id key in the API call

Which library is the most commonly used Python library for connecting NETCONF clients with a NETCONF server? > posix > pyclient > ncclient > pypi

ncclient

Match the missing components of the Python script for authenticating to the Cisco DNA Center and obtaining an authentication token using the username of "adminuser" and password of "Sup3rC1$c0". ------------------------------ import requests import json import sys dnacip = "cisco44-dnacenter-31.cisco.com" username = "adminuser" password = "Sup3rC1$c0" def get_X_auth_token ( **COMPONENT1** , username, password): post_uri = "https://"+dnacip+"/dna/system/api/v1/auth/token" print ("\nAuthenticate: POST %s%(post_uri)) try: r = requests.post(post_uri, **COMPONENT2** = (username, password), verify=False) return r.json()["Token"] except: print("Status: %s"%r.status_code) print("Response: %s"%r.text) sys.exit() token = get_X_auth_token(dnacip, username, **COMPONENT3**) print ("returned Authentication Token: ", (token)) ------------------------------ > password > adminsuer > auth > dnacip > post

dnacip auth password

Match the missing components to the Python script for authenticating to the Cisco DNA Center and obtaining a token using the username of “secureuser” and password of “C1$c0”. ------------------------------ import requests import json import sys dnacip = "cisco44-dnacenter-1.cisco.com" username = "secureuser" password = " **COMPONENT1** " def get_X_auth_token (dnacip , username, password): post_uri = "https://"+dnacip+"/dna/system/api/v1/auth/token" print ("\nAuthenticate: POST %s%(post_uri)) try: r = requests.post(post_uri, auth = (username, **COMPONENT2** ), verify=False) return r.json()["Token"] except: print("Status: %s"%r.status_code) print("Response: %s"%r.text) sys.exit() token = get_X_auth_ **COMPONENT3** (dnacip, username, password) print ("returned Authentication Token: ", (token)) ------------------------------ > password > token > secureuser > success > C1$c0 > requests

C1$c0 password token

Match the missing components of the Python script for the following tasks. - delete all previous demo rooms - create a new demo room - enroll Allan and Jane as members - post a message to the new room ------------------------------ from webexteamssdk import WebexTeamsAPI api = WebexTeamsAPI() all_rooms = api.rooms.list() demo_rooms = [room for room in all_rooms if 'olders Demo' in room.title] for room in demo_rooms: api.rooms. **COMPONENT1** (room.id) demo_room = api.rooms. **COMPONENT2** ('newtest Demo') email_addresses = ["Jane@test.com", "Allen@test.com"] for email in email_addresses: api. **COMPONENT3** .create(demo_room.id, personEmail=email) api.messages.create(demo_room.id, **COMPONENT4** ="Welcome to the room!" files = [*imagelink*]) ------------------------------ > text > delete > create > memberships

delete create memberships text

Which two APIs allow for Cisco Meraki device provisioning and real-time notifications? (Choose two.) > Webhook API > Investigation API > Dashboard API > Enforcement API > Reporting API

Webhook API Dashboard API

A packet is received by a server. The packet has a destination port number of 443. What protocol or service is requested? > HTTP > NTP > DHCP > HTTPS

HTTPS

When thinking about the functional planes of a network, what is unique about the data plane? > It includes protocols used to remotely access network devices. > It includes the SSH protocol. > It manipulates data and outputs it in the XML format. > It is responsible for the switching of packets in hardware.

It is responsible for the switching of packets in hardware.

When thinking about the functional planes of a network, what is unique about the data plane? > It forwards data through a network infrastructure device. > It includes protocols used to remotely configure network devices. > It manipulates data and outputs it in the JSON format. > It includes network traffic being processed by EIGRP or OSPF.

It forwards data through a network infrastructure device.

When thinking about the functional planes of a network, what is unique about the data plane? > It manipulates traffic using Python. > It includes applications and protocols used between network devices such as routers. > It includes the SNMP protocol. > It forwards data through a network device such as a router or a switch.

It forwards data through a network device such as a router or a switch.

When thinking about the functional planes of a network, what is unique about the data plane? > It forwards data through a network device. > It includes routing protocols. > It manipulates data and outputs it in the XML format > It includes protocols used to monitor network devices.

It forwards data through a network device.

Which Docker component defines the steps needed to create and image that can be deployed in a variety of environments? > UnionFS > Dockerfile > cross-site script > namespaces

Dockerfile

Which three statements describe characteristics of a virtual machine? (Choose three.) > It is created and deployed using the Docker format. > It includes a guest operating system. > It runs on top of a hypervisor. > It shares the operating system of the host computer. > It is completely self-contained with its own emulated storage, memory, and network interfaces. > It requires Windows as the host operating system.

It includes a guest operating system. It runs on top of a hypervisor. It is completely self-contained with its own emulated storage, memory, and network interfaces.

Match the use cases of a load balances to the description. __________ : sends traffic to a new environment, but keeps the old environment ready in case of issues __________ : diverts a small amount of traffic to a new production environment that is changed __________ : sends requests to the next server on the list > canary > blue-green > round robin

blue-green canary round robin

What are two characteristics of the staging environment of the four-tier deployment environment structure? (Choose two.) > It is the point where code has been tested multiple times and is error free. > It is structured as close as possible to the actual production environment. > It is where the code undergoes final acceptance testing in a realistic environment. > It is where end users will interact with the code. > It often includes automated testing tools such as Jenkins, CircleCl, or TravisCl.

It is structured as close as possible to the actual production environment. It is where the code undergoes final acceptance testing in a realistic environment.

Refer to the exhibit. A network engineer has created a Jenkins pipeline. Which menu option would the engineer use to run the pipeline? > Configure > Changes > Build Now > Workspace

Build Now

A network engineer is configuring a Jenkins job and finishing with the following script in order to trigger the build: What is the purpose of the preparation stage? > It makes sure that any previous instances of a particular Docker container are stopped and removed. > It catches and removes any errors. > It runs the SUCCESS Docker container. > It places a log of any errors in the SUCCESS file.

It makes sure that any previous instances of a particular Docker container are stopped and removed.

Which technique is used to make output of password hashing nondeterministic? > password length and complexity > multifactor authentication > password salting > password strength validation tools

password salting

What does self-service refer to in the context of enterprise IT? > imaging frequently used server configurations for rapid deployment > distributing and implementing broad access to public cloud infrastructure-as-a-service services > mainstreamed processes that promote a lower IT headcount by implementing automation > automated tools and methods that deliver preconfigured developer platforms on demand

automated tools and methods that deliver preconfigured developer platforms on demand

Which statement describes the term orchestration in IT automation? > Orchestration is aimed at managing workload lifecycles and reacting dynamically to changing conditions in order to optimize processes. > Orchestration is the process of preparing a server through the installation of libraries or daemons. > Orchestration is the building, arranging, integration, and preparation of multi-component applications across multiple nodes. > Orchestration is the obtaining and provisioning of compute, storage, and network infrastructure.

Orchestration is aimed at managing workload lifecycles and reacting dynamically to changing conditions in order to optimize processes.

What is an example of a read-only automation solution? > streamlining the management of L3 firewall rules in Cisco Meraki networks > gathering SD-WAN inventory data using Python and recording the values in a database > simplifying the automation of network device authentication, configuration, and consistency > gathering the current list of ACL entries on an IOS XE router and enforcing consistency

gathering SD-WAN inventory data using Python and recording the values in a database

A student is setting up the CSR1000v VM in VirtualBox that is already installed on the local computer. The VM is imported to the VirtualBox and starts successfully. The student tries to verify communications to the CSR1000v VM by opening the Firefox web browser on the local computer and enters the URL https://192.168.56.101. A security message “Warning: Potential Security Risk Ahead” appears. What is the security issue that results in this message? > The SSL/TLS certificate uses a public key size of less than 1024 bits. > The SSL/TLS certificate is self-signed by the router. > The CA for the SSL/TLS certificate cannot be reached. > The traffic to the VM is not encrypted.

The SSL/TLS certificate is self-signed by the router.

How do APIs affect traditional IT tasks? > They are used to replace network infrastructure and implement network virtualization. > They are used to eliminate repetitive manual tasks and replace them with automation. > They are used to increase computer processing speed and lower power consumption. > They are used to increase hardware speed and lower power consumption.

They are used to eliminate repetitive manual tasks and replace them with automation.

Refer to the exhibit. PC1 needs to resolve the host name of the web server into an IP address by using DNS. What destination IP address and destination port number will PC1 assign to the DNS query packet? > 192.168.20.2 port 80 > 192.168.20.3 port 53 > 192.168.20.3 port 80 > 192.168.10.1 port 53

192.168.20.3 port 53

Which two statements are true about NTP servers in an enterprise network? (Choose two.) > There can only be one NTP server on an enterprise network > All NTP servers synchronize directly to a stratum 1 time source. > NTP servers at stratum 1 are directly connected to an authoritative time source. > NTP servers ensure an accurate time stamp on logging and debugging information. > NTP servers control the mean time between failures (MTBF) for key network devices.

NTP servers at stratum 1 are directly connected to an authoritative time source. NTP servers ensure an accurate time stamp on logging and debugging information.

Match the steps with the actions that are involved when an internal host with IP address 192.168.10.10 attempts to send a packet to an external server at the IP address 209.165.200.254 across a router R1 that is running dynamic NAT. (Not all options are used.) __________ : R1 replaces the address 192.168.10.10 with a translated inside global address. __________ : R1 checks the NAT configuration to determine if this packet should be translated. __________ : R1 selects an available global address from the dynamic address pool. __________ : The host sends packets that request a connection to the server at the address 209.165.200.254. __________ : If there is no translation entry for this IP address, R1 determines that the source address 192.168.10.10 must be translated.

The host sends packets that request a connection to the server at the address 209.165.200.254. R1 checks the NAT configuration to determine if this packet should be translated. If there is no translation entry for this IP address, R1 determines that the source address 192.168.10.10 must be translated. R1 selects an available global address from the dynamic address pool. R1 replaces the address 192.168.10.10 with a translated inside global address.

A network administrator can successfully ping the server at www.cisco.com, but cannot ping the company web server located at an ISP in another city. Which tool or command would help identify the specific router where the packet was lost or delayed? > traceroute > ipconfig > telnet >netstat

traceroute

Which two HTTP functions correspond to the UPDATE function in CRUD? (Choose two.) > POST > DELETE > PATCH > PUT > GET

PATCH PUT

Match the term to the RESTAPI request http://example.com/update/person?id=42&email=person%40example.com. __________ : http __________ : update/person __________ : example.com __________ : id=42&email=person%40example.com > scheme > path > authority > query

scheme path authority query

Which HTTP status code category is used in the response to indicate that a REST API request contains an error on the client side? > 1xx > 2xx > 3xx > 4xx > 5xx

4xx

Refer to the exhibit. A network administrator is using a Python script to test a REST API request. The traceback message indicates that there is an error in the URI. What is the error? > The protocol is wrong. > The resource path is wrong. > The SSL certificate is invalid. > The destination web host address is invalid.

The SSL certificate is invalid.

What are two requirements for an application to communicate with a webhook provider? (Choose two.) > The application must support JSON. > The application must always be running. > The application must register a URL with the webhook provider. > The host where the application is running must have an SSH client installed. > The host where the application is running must have an SSH server running.

The application must always be running. The application must register a URL with the webhook provider.

A student is learning network automation by using a REST API. The student sends a request to a network device and receives a response with the status code of 202. What does this status code mean? > The request was understood but has been rejected by the server. > The request was successful and typically includes a payload. > The request has been accepted for processing, but the processing has not been completed. > Because of a server error, the request cannot be fulfilled.

The request has been accepted for processing, but the processing has not been completed.

What are two characteristics of stateless applications? (Choose two.) > They must run on container orchestrators like Kubernetes. > They can be freely scaled across available capacity without disrupting ongoing customer connections. > They can be scaled only by redeploying them and destroying the data that users or operators previously needed. > They maintain the user state within the local user machine so that automation can work non-destructively. > They can store a user state in an accessible database separate from application servers and other components.

They can be freely scaled across available capacity without disrupting ongoing customer connections. They can store a user state in an accessible database separate from application servers and other components.

What is a characteristic of the continuous integration component of the CI/CD philosophy for software development? > Code changes are continually merged with the main branch of the application, so change sets are small. > Code changes are tested and integrated with the main branch then tested again before they are deployed into production. > Code is constantly deployed into production where users serve as the final testers. > Application development is performed in short sprints so that enough code is always in a deployable state.

Code changes are continually merged with the main branch of the application, so change sets are small.

A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Waterfall method. What is a characteristic of this method? > a process that amplifies learning as well as delivers as quickly as possible > a software development process where the highest priority is to satisfy the customer through early and continuous delivery of valuable software > a software development process where a particular phase depends on the results of the previous phase > a process that eliminates anything that does not add value to the project including meetings and documentation

a software development process where a particular phase depends on the results of the previous phase

A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Waterfall method. What is a characteristic of this method? > A software development process that prioritizes responding to change over following a plan > A process that eliminates inefficient ways of working like expecting coders to multitask > A software development process that focuses on frequent delivery of working software as well as collaboration between developers and business employees > A software development process that can only go forward.

A software development process that can only go forward.

A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Waterfall method. What is a characteristic of this method? > a software development process that has the results of one phase feed into the next phase > a process that eliminates anything that does not add value to the project including meetings and documentation > a software development process that focuses on frequent delivery of working software as well as collaboration between developers and business employees > a process that eliminates inefficient ways of working like expecting coders to multitask

a software development process that has the results of one phase feed into the next phase

In which SDLC phase is the software product installed into the production environment to decide if it is ready for release? > implementation > deployment > design > testing

deployment

Which convention is used in Python to indicate that methods and variables in a class are private and not to be used outside of the class? > by using a single preceding underscore ( _ ) for a method or variable > by using the command class private classname() : to start the class definition > by using two preceding hyphens ( — ) for a method or variable > by declaring a private method or variable in the beginning of the class definition

by using a single preceding underscore ( _ ) for a method or variable

A packet is received by a server. The packet has a destination port number of 80. What protocol or service is requested? > DHCP > Telnet over SSH > HTTP > RESTCONF

HTTP

A network administrator is developing an application to control a Webex device through xAPI. Which three protocols can be used to access xAPI? (Choose three.) > Telnet > HTTP > XML > RS-232 > FTP > JSON

Telnet HTTP RS-232

Which type of request is used to send a message to a Webex Teams space using Python and the Messages API? > PUT > POST > GET > PATCH

POST

A network administrator is assigned the 172.16.0.0/24 block of addresses to use in designing an IP addressing scheme. The administrator submits this design for approval: - 172.16.0.0/26 - 172.16.0.64/27 - 172.16.0.96/26 - 172.16.0.128/27 What should be the response from the senior network engineer regarding this design? > This design is flawed because the 172.16.0.128/27 network number is invalid. > This design will work for the branch office. > This design is flawed because no design could have two networks that use a /26 mask and are not consecutive blocks of addresses. > This design is flawed because the 172.16.0.96/26 network is not a valid block of addresses. > This design is flawed because the 172.16.0.96/26 network overlaps with other addresses.

This design is flawed because the 172.16.0.96/26 network is not a valid block of addresses.

Which statement describes a stateful firewall? > It can filter packets based on information at Layers 3, 4, 5 and 7 of the OSI reference model. > It can determine if the connection is in the initiation, data transfer, or termination phase. > It can only filter packets based on limited Layer 3 and 4 information. > It can expand the number of IP addresses available and can hide network addressing design.

It can determine if the connection is in the initiation, data transfer, or termination phase.

A packet is received by a server. The packet has a destination port number of 123. What protocol or service is requested? > DNS > SSH > NTP > RESTCONF

NTP

Which scenario exhibits the “social proof” principle of human influence? > A user receives a phone call from someone claiming to be from the IT department who needs to verify user credentials. > A user visits a web site offering a free gift if the user provides contact information. > A user opens an email advertising a free trial on a website that is only available for a few hours. > A user completes a survey requesting personal information after seeing co-workers completing the survey.

A user completes a survey requesting personal information after seeing co-workers completing the survey,

Which SQL injection defense method should be used only as a last resort? > escaping all user-supplied input > using a database firewall > implementing whitelist input validation > using parameterized queries

escaping all user-supplied input

Which type of ISE node provides network access, posturing, guest access, client provisioning, and profiling services? > monitoring > administration > pxGrid > policy service

policy service

Which communication protocol does Ansible use to connect to remote devices? > Telnet over VPN > HTTPS > Secure FTP > SSH

SSH

What is an architectural constraint to which a true RESTful API web service must adhere? > It must support XML-RPC and JSON-RPC. > It allows resource caching. > It should be behind a firewall. > It operates as a cloud service.

It allows resource caching.

What is an architectural constraint to which a true RESTful API web service must adhere? > It operates in a stateless way. > It uses HTTPS to transport data. > It must operate along with a DNS server. > It operates as a cloud service.

It operates in a stateless way.

A packet is received by a server. The packet has a destination port number of 53. What protocol or service is requested? > DNS > NetBIOS (NetBT) > POP3 > IMAP

DNS

Which statement accurately describes dynamic NAT? > It always maps a private IP address to a public IP address. > It provides an automated mapping of inside local to inside global IP addresses. > It provides a mapping of internal host names to IP addresses. > It dynamically provides IP addressing to internal hosts.

It provides an automated mapping of inside local to inside global IP addresses.

A packet is received by a server. The packet has a destination port number of 830. What protocol or service is requested? > NTP > DHCP > NETCONF > HTTPS

NETCONF

Which programming language is supported by the Webex xAPI to develop macros for on-device customization? > Java > Python > JavaScript > C++

JavaScript

Which Cisco management system is designed as the solution for Software-Defined Networking and runs on Nexus 9000 hardware? > Application Centric Infrastructure platform (ACI) > IOS XE > Nexus Operating System (NX-OS) > DNA Center

Application Centric Infrastructure platform (ACI)

A developer issues a Linux command python3 -m venv devenv. What is the developer trying to achieve? > to install the devnet tool sets in the Python 3 virtual environment named venv > to create a Python 3 virtual environment named devenv > to activate the Python 3 virtual environment named devenv > to enter the Python 3 virtual environment named venv using the devnet tool sets

to create a Python 3 virtual environment named devenv

Two network engineers are discussing the methods used to forward frames through a switch. What is an important concept related to the cut-through method of switching? > The fragment-free switching offers the lowest level of latency. > Fast-forward switching can be viewed as a compromise between store-and-forward switching and fragment-free switching. > Fragment-free switching is the typical cut-through method of switching. > Packets can be relayed with errors when fast-forward switching is used.

Packets can be relayed with errors when fast-forward switching is used.

When thinking about the functional planes of a network, what is unique about the control plane? > It forwards data through a network device. > It manipulates data and outputs it in the XML format. > It includes the SNMP protocol. > It includes network traffic being processed by EIGRP or OSPF.

It includes network traffic being processed by EIGRP or OSPF

When thinking about the functional planes of a network, what is unique about the control plane? > It forwards data based on STP settings. > It includes applications and protocols used between network devices such as routers. > It includes protocols used to monitor network devices. > It is responsible for the switching of packets in hardware.

It includes applications and protocols used between network devices such as routers.

When thinking about the functional planes of a network, what is unique about the control plane? > It manipulates data and outputs it in the JSON format. > It includes the SNMP protocol. > It processes data in hardware. > It processes network traffic that is paramount to maintaining the functionality of the network infrastructure.

It processes network traffic that is paramount to maintaining the functionality of the network infrastructure.

A network security administrator is evaluating products that automate threat containment through APIs when a threat is detected. Which Cisco product with the desired capability provides a rule-based engine for enabling policy-based network access to users and devices? > Identity Services Engine > Umbrella > Threat Grid > Advanced Malware Protection

Identity Services Engine

When thinking about the functional planes of a network, what is unique about the management plane? > It forwards data based on STP settings. > It is responsible for the switching of packets in hardware. > It includes protocols used to monitor network devices. > It includes applications and protocols used between network devices such as routers.

It includes protocols used to monitor network devices.

Which two data formats can RESTCONF use when requesting data or responding with data? (Choose two.) > XML > YANG > JSON > YAML > HTML

XML JSON

FINAL EXAM Flashcards

(104 cards)