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DevNet
IT0123
| Question | Answer |
|---|---|
| >>> routers=[] >>> switches=[] >>> devices=[\"RT1\", \"RT2\", \"RT3\", SW1\", \"SW2\", \"SW3\"] >>> devices=devices + [\"RT4\", \"SW4\"] >>> for i in devices: if \"R\" in i: routers.append(i) else: switches.append(i) >>> switches | [‘SW1’, ‘SW2’, ‘SW3’, ‘SW4’] |
| A system administrator issues the apt-get upgrade command on a Linux operating system. What is the purpose of this command? | Every application installed will update itself to the latest version. |
| A Linux system administrator is searching the passwd file for any username that starts with a digit. Which grep command should the administrator use? | grep ‘^[0-9]’ /etc/passwd |
| A developer needs to check the version of the running Python package. Which command should the developer use? | python3 -V |
| A system administrator attempts to determine what is causing a computer to perform slower than normal. The administrator issues the ps command. What is displayed by this command? | active processes using CPU time |
| A student new to Python is working in the interactive interpreter mode. The student issues the commands: >>> ipAddress = {"R1":"10.1.1.1","R2":"10.2.2.1","R3":"10.3.3.1"} | dictionary |
| . What is the output when the following code is entered into a Python program interpreter? [1,2,4,5] + [3,6] | [1,2,4,5,3,6] |
| Which Python command creates a conditional control structure? | if |
| A system administrator of a Linux server is searching the passwd file for the username taylor that appears at the beginning of the line. Which grep command should the administrator use? | grep ‘^taylor’ /etc/passwd |
| devasc@labvm:~/Documents$ ls -l myfile.sh -rwxr-xr-- 1 self test 15 Mar 30 21:24 myfile.sh Which two statements describe the permissions assigned to the file? (Choose two.) | Any user in the test group can execute the file. The user with the user ID of self can modify the file |
| A student new to Python is working in the interactive interpreter mode. The student issues the commands: >>> devicenames=["RT1", "RT2", "SW1", "SW2"] >>> hostnames=devicenames + ["RT3", "SW3"] >>> del hostnames[3] >>> hostnames What is the result? | [‘RT1’, ‘RT2’, ‘SW1’, ‘RT3’, ‘SW3’] |
| A user enters the commands as shown. What is the result after the mv command is entered? devasc@labvm:~/Documents$ pwd /home/devasc/Documents devasc@labvm:~/Documents$ mv myfile.sh ../Desktop/myfile2.sh | The file myfile.sh is moved to the /home/devasc/Desktop directory and renamed as myfile2.sh. |
| A user issues a series of Linux commands as shown. (omitted)$ pwd /home/devasc/labs/ansible/backups (omitted)$ cd ../.. Which directory is the current directory after the cd command is entered? | /home/devasc/labs |
| aclNum = int(input("What is the IPv4 ACL number? ")) if aclNum >= 1 and aclNum <= 99: print("This is a standard IPv4 ACL.") elif aclNum >=100 and aclNum <= 199: print("This is an extended IPv4 ACL.") | when the if statement is false |
| Linux administrator is attempting to use terminal to configure the network interface card on a computer. Administrator receives message that the administrator doesn't have necessary permissions to perform the configuration. What should be done? | use the sudo command |
| A network engineer needs to review the status of all network interfaces of a server running a Linux operating system. The engineer enters the command ifconfig -a. What is the resuit of this command? | Both active and inactive interfaces will display information. |
| A user issues the apt-get upgrade command to update system files in a Ubuntu Linux system and receives an error message of “permission denied.” What should the user do to complete the task? | Issue the sudo apt-get upgrade command. |
| What is displayed after the following code is entered into a Python interpreter? addition = 22 +10 print(addition) | 32 |
| What Linux command is used to display the contents of the current directory? | ls |
| A student new to Python is working in the interactive interpreter mode. The student issues the command: >>> ipAddress = {"R1":"10.1.1.1","R2":"10.2.2.1","R3":"10.3.3.1"} Which Python expression can be used to retrieve the IP address of R2? | ipAddress[‘R2’] |
| Which Python programming function is used to display output? | |
| A student is learning Python in the interactive interpreter mode. The student issues the commands: >>> y=2 >>> y*3 6 >>> 'Test'*y What is the result? | ‘TestTest’ |
| A student is learning Python in the interactive interpreter mode. The student issues the commands: >>> devicenames=[\"RT1\", \"RT2\", \"SW1\", \"SW2\"] >>> devicenames[-1] What is the result? | SW2 |
| A student is learning Python in the interactive interpreter mode. The student issues the command: >>> type(True) What is the data type reported by Python? | Boolean |
| What command is used to rename a file in a Linux system? | mv |
| total 40 drwxr-xr-x 2 devasc devasc 4096 Apr 15 19:09 Videos drwxr-xr-x 2 devasc devasc 4096 Apr 15 19:09 Templates drwxr-xr-x 5 devasc devasc 4096 Mar 30 21:24 snap drwxr-xr-x 2 devasc devasc 4096 Apr 15 19:09 Public | ls-lr |
| total 40 drwxr-xr-x 2 devasc devasc 4096 Mar 30 21:25 Desktop drwxr-xr-x 2 devasc devasc 4096 Apr 15 19:09 Documents drwxr-xr-x 2 devasc devasc 4096 Apr 15 19:09 Downloads drwxr-xr-x 5 devasc devasc 4096 Mar 30 21:21 labs | ls-l |
| Which two DevNet resources are available online? (Choose two.) | Automation Exchange Code Exchange |
| Which link is used from the Cisco DevNet Learning Labs to access the largest collections of labs? | Tracks |
| Which technology trend enables an industry shift towards automation, applications, and integrations? | advanced API capabilities |
| What are two requirements when participating in the DevNet Learning Labs? (Choose two.) | The user must have an active internet connection. The user must successfully log in with a DevNet account. |
| What is network programmability? | the ability to configure, monitor, and react to events in the network in real time |
| Which DevNet event is provided by Cisco partners and Cisco offices? | DevNet Express |
| What is the purpose of Cisco DevNet? | to teach everyone about the different Cisco API offerings and how to use them |
| What is the contracted response time after a developer opens a case-based ticket with the DevNet support service? | one business day |
| Which website provides the entry point for Cisco DevNet? | developer.cisco.com |
| What is Cisco DevNet? | a developer program |
| Which Cisco DevNet online resource provides use cases for network automation, including listing data and activating policies across domains? | Automation Exchange |
| What is the purpose of the Cisco DevNet Learning Labs? | They provide self-paced tutorials including coding. |
| What is a requirement when creating a Cisco DevNet account for accessing educational resources, such as Learning Labs and the DevNet Sandbox? | The account must be created using an existing online identity or via a new Cisco account. |
| What is contained within a DevNet Sandbox? | a preconfigured environment already installed with Cisco platforms |
| What type of learner should take the DevNet Associate course? | anyone interested in network automation and programmability |
| What resources are available in the Cisco DevNet Code Exchange? | a repository of sample code written by other developers |
| Which DevNet resource would a developer use if the developer is using a Cisco API and needs help understanding the error message received? | DevNet Support |
| What are three major areas that comprise DevNet? (Choose three.) | coordinated developer tools interactive and collaborative developer community integrated community forums |
| What resources are available in the Cisco DevNet sandboxes? | production-like development and code testing environments |
| What is required in order to ensure that clients are able to talk to applications that are outside a local system? | a network |
| Which Cisco DevNet developer support option provides 1-on-1 support to the members of the Solution Partner program? | case-based ticket |
| What are two benefits of using APIs and integrations between applications? (Choose two.) | Integrations enable the applications to request actions trom each other Integrations are used to provide applications the ablity to notity each other when a specific event happens. |
| A developer issues a Linux command python3 -m venv devenv . What is the developer trying to achieve? | to create a Python 3 virtual environment named devenv |
| Which term is used to describe the first line of an XML document? | prologue |
| What characteristic describes a formal code review? | The entire code base is reviewed in a series of meetings. |
| A developer is constructing some functions in Python. When is a function referred to as a module in Python? | when the function is packaged in a single Python file |
| Which statement describes the Waterfall methodology of software development? | Each step in the process must be completed before the next step starts |
| When a unified .diff file is being reviewed, which symbol is used to indicate that a line has been added? | + |
| What is clean code? | code that is easy to read and understand |
| What special characters are used to enclose JSON objects? | curly braces {} |
| Which fundamental Lean principle forms the basis from which all other Lean principles flow? | eliminate waste |
| A developer wants to find the location of the Python 3 executable file. Which command should the developer use? | which python3 |
| How does an application use a module in Python? | through the import statement |
| A student is learning Python using the interactive interpreter mode. The student issues these commands: >>> class Uri(): ... def_init__(self, host, prot): ... self.host = host ... self.prot = prot ... self.url = self.prot + "://" + self.host >>> | >>> url2 = Url(‘www.cisco.com’,’http’) |
| Match the Lean term with a description. story Scrum team sprint backlog | story – a simple statement of what a user needs and why Scrum team – uses standup meetings to review progress sprint –a time-boxed period where working software is developed backlog –prioritized list of all the features for the software being developed |
| Which code review method involves the developer going through the code line-by-line with the reviewer, allowing the developer to make changes on the spot? | over-the-shoulder |
| Which SDLC development methodology employs many quick iterations known as sprints? | Agile |
| What are the three states of a Git file? (Choose three.) | stage, committed, modified |
| Which SDLC phase concludes with functional code that satisfies customer requirements and is ready to be tested? | implementation |
| What is the role of the controller component in the Model-View-Controller (MVC) flow? | It takes user input and manipulates it to the proper format for the model. |
| Which two programming components are defined as blocks of code that perform tasks when executed? (Choose two.) | functions and methods |
| A developer issues the Linux command pip3 freeze in an activated Python 3 virtual environment. What is the function that is provided by the command? | to output a list of installed Python packages |
| Match the Git command with its function. git pull git init git push | git pull: updates local copy of Git repository git init: creates empty Git repository git push: updates remote Git repository |
| What is the role of the view component in the Model-View-Controller (MVC) flow? | It accepts selected data and displays the visual representation to the user. |
| Which software development methodology prescribes that developers follow a strict process order by completing one step in the SDLC process before proceeding to the next step. | Waterfall |
| When a unified diff file is being reviewed, which symbol is used to indicate that a line has been added? | + |
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